Thông tư 05/2021/TT-BTTTT Quy chuẩn kỹ thuật quốc gia về thiết bị trạm gốc thông tin di động 5G

 

CIRCULAR

On the “National technical regulation on 5G base station - Radio access”

 

Pursuant to the Law on Standards and Technical Regulations dated June 29, 2006;

Pursuant to the Law on Telecommunications dated November 23, 2009;

Pursuant to the Law on Radio Frequencies dated November 23, 2009;

Pursuant to the Decree No. 127/2007/ND-CP dated August 1, 2007 of the Government detailing and guiding the implementation of a number of articles of the Law on Standards and Technical Regulations;

Pursuant to the Decree No. 78/2018/ND-CP dated May 16, 2018 of the Government amending and supplementing a number of articles of the Decree No. 127/2007/ND-CP dated August 1, 2007 of the Government detailing the implementation of a number of articles of the Law on Standards and Technical Regulations;

Pursuant to the Decree No. 17/2017/ND-CP dated February 17, 2017 of the Government defining the functions, tasks, powers and organizational structure of the Ministry of Information and Communications;

At the proposal of the Director General of the Department of Science and Technology,

The Minister of Information and Communications promulgates the Circular providing for the National Technical Regulation on 5G base station - Radio access.

 

Article 1. This Circular is promulgated together with the National Technical Regulation on 5G Base Station - Radio Access (QCVN 128:2021/BTTTT).

Article 2. This Circular takes effect from March 1, 2022.

Article 3. Application roadmap

1. From July 01, 2022, the imported and domestically produced the equipment of 5G base station shall satisfy the requirements specified in QCVN 128:2021/BTTTT before they are marketed.

2. Enterprises, organizations and individuals that manufacture and import the equipment of 5G base station are encouraged to apply the provisions of QCVN 128:2021/BTTTT from the effective date of this Circular.

Article 4. The Chief of Office, Director General of the Department of Science and Technology, Heads of agencies and units under the Ministry of Information and Communications, Directors of Departments of Information and Communications of provinces and centrally run cities and relevant organizations and individuals shall implement this Circular.

SOCIALIST REPUBLIC OF VIETNAM

 

 

 

 

 

QCVN 128:2021/BTTTT

 

 

 

 

NATIONAL TECHNICAL REGULATION ON
5G BASE STATION - RADIO ACCESS

 

 

 

 

 

 

 

 

 

 

 

 

 

HANOI – 2021

CONTENTS

1. GENERAL PROVISIONS. 7

1.1. Scope of regulation. 7

1.2. Subjects of application. 7

1.3. Normative references. 7

1.4. Interpretation of terms. 8

1.6. Symbols. 16

2. TECHNICAL SPECIFICATIONS. 19

2.1. General requirements. 19

2.1.4. Base station channel bandwidth. 21

2.2. Specifications for base stations Type 1-C and 1-H.. 22

2.2.1. Base station output power 22

2.2.2. Transmitter ON/OFF power 23

2.2.3. Transmitter transition period. 23

2.2.4. Unwanted emissions. 23

2.2.5. Adjacent channel leakage power ratio ACLR.. 24

2.2.6. Operating band unwanted emissions. 26

2.2.7. Transmitter spurious emissions. 30

2.2.8. Transmitter intermodulation. 34

2.2.9. Receiver sensitivity. 36

2.2.10. Adjacent channel selectivity (ACS) 37

2.2.11. In-band blocking. 38

2.2.12. Out-of-band blocking. 40

2.2.13. Receiver spurious emissions. 42

2.2.14. Receiver intermodulation. 42

2.2.15. Channel selectivity. 46

2.2.16. Radiated emissions. 48

2.3. Technical specifications for base stations type 1-O and 2-O.. 48

2.3.1. OTA base station output power 48

2.3.2. OTA transmitter OFF power 49

2.3.3. OTA unwanted emissions. 49

2.3.4. Adjacent channel leakage power ratio (ACLR) 50

2.3.5. OTA operating band unwanted emissions. 52

2.3.6 OTA transmitter spurious emissions. 54

2.3.7. OTA transmitter intermodulation. 56

2.3.8. OTA receiver sensitivity. 56

2.3.9. OTA Adjacent channel selectivity (ACS OTA) 58

2.3.10. OTA in-band blocking. 59

2.3.11. OTA out-of-band blocking. 62

2.3.12. OTA receiver spurious emissions. 63

2.3.13. OTA receiver intermodulation. 65

2.3.14. OTA channel selectivity. 68

2.4. 5G Base Station Performance Requirements. 71

2.4.1. Peak spectral efficiency. 71

2.4.2. Coherence bandwidth. 71

2.4.3. Modulation types. 71

2.4.4. Temperature, humidity. 71

3. MEASUREMENT METHODS. 72

3.1. Measurement uncertainty. 72

3.2. Test method for base stations type 1-C, 1-H.. 76

3.2.1. Base station output power 76

3.2.2. Transmitter OFF power 77

3.2.3. Adjacent channel leakage power ratio (ACLR) 77

3.2.4. Operating band unwanted emissions. 78

3.2.5. Transmitter spurious emission. 79

3.2.6. Transmitter intermodulation. 80

3.2.7. Receiver sensitivity. 81

3.2.8. Adjacent channel selectivity. 82

3.2.9. In-band blocking. 83

3.2.10. Out-of-band blocking. 83

3.2.11. Receiver spurious emissions. 84

3.2.12. Receiver intermodulation. 85

3.2.13. Channel selectivity. 85

3.2.14. Radiated emission. 86

3.3. Test method for base stations type 1-O, 2-O.. 86

3.3.1. OTA base station output power 86

3.3.2. OTA transmitter OFF power 87

3.3.3. Adjacent channel leakage power ratio (ACLR) 88

3.3.4. OTA operating band unwanted emissions. 89

3.3.5. OTA transmitter spurious emissions. 90

3.3.6. OTA transmitter intermodulation. 92

3.3.7. OTA receiver sensitivity. 93

3.3.8. OTA Adjacent Channel Selectivity (ACS) 94

3.3.9. OTA in-band blocking. 95

3.3.10. OTA out-of-band blocking. 96

3.3.11. OTA receiver spurious emissions. 98

3.3.12. OTA receiver intermodulation. 99

3.3.13. OTA channel selectivity. 100

3.4. Methods of measuring performance indicators. 101

3.4.1. Peak spectral efficiency. 101

3.4.2. Coherence bandwidth. 103

3.4.3. Modulation types. 103

3.4.4. Temperature, humidity. 103

4. REGULATIONS ON MANAGEMENT. 103

5. RESPONSIBILITIES OF ORGANIZATIONS AND INDIVIDUALS. 103

6. IMPLEMENTATION.. 103

Appendix A  (Reference)  Environmental conditions. 104

Appendix B  (Reference)  Measurement diagram.. 107

Appendix D  (Reference)  Technical specifications for 5G base stations operating in the frequency range of 3 400 MHz - 4 200 MHz. 118

References. 120

 

Preface

QCVN 128:2021/BTTTT compiled by the Authority of Telecommunications, submitted by the Department of Science and Technology, reviewed by the Ministry of Science and Technology, and issued by the Minister of Information and Communications together with the Circular No.... ... /2021/TT-BTTTT dated ......., 2021.

 

QCVN 128:2021/BTTTT

NATIONAL TECHNICAL REGULATION ON 5G BASE STATION - RADIO ACCESS

 

1. GENERAL PROVISIONS

1.1. Scope of regulation

This Regulation specifies the technical requirements for the equipment of 5G base station (5G base station) that operates in all or one of the bands specified in Table 1.

Table 1 - Operating bands of 5G base station

This Regulation applies to products and goods that are 5G base stations with HS codes specified in Appendix C.

1.2. Subjects of application

This Regulation applies to Vietnamese and foreign agencies, organizations and individuals engaged in the production and business of equipment covered by this Regulation in the Vietnamese territory.

1.3. Normative references

Recommendation ITU-R SM.329: "Unwanted emissions in the spurious domain".

Recommendation ITU-R SM.328: "Spectra and bandwidth of emissions".

Recommendation ITU-R M.1545: "Measurement uncertainty as it applies to measure limits for the terrestrial component of International Mobile Telecommunications-2000".

Federal Communications Commission "Title 47 of the Code of Federal Regulations (CFR)".

3GPP TS 38.211: "NR; Physical channels and modulation".

3GPP TS 38.213: "NR; Physical layer procedures for control".

3GPP TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".

ECC/DEC/(17)06: "The harmonised use of the frequency bands 1427-1452 MHz and 1492-1518 MHz for Mobile/Fixed Communications Networks Supplemental Downlink (MFCN SDL)".

3GPP TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio transmission and reception".

3GPP TS 37.105: "Active Antenna System (AAS) Base Station (BS) transmission and reception".

3GPP TS 38.212: "NR; Multiplexing and channel coding".

3GPP TR 38.901: "Study on channel model for frequencies from 0.5 to 100 GHz"

3GPP TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone".

3GPP TS 38.101-2: "NR; User Equipment (UE) radio transmission and reception; Part 2: Range 2.

1.4. Interpretation of terms

1.4.1. Aggregated Channel Bandwidth

Aggregated channel bandwidth means a radio frequency (RF) bandwidth over which a base station transmits and receives multiple contiguously aggregated carriers.

NOTE: The unit of measurement of the aggregated channel bandwidth is MHz.

1.4.2. Antenna connector

Antenna connector means a connector at the antenna port of Base Station Type 1-C.

1.4.3. Active transmitter unit

Active transmitter unit means the transmitter unit that is ON and is capable of transmitting data streams to the antenna connector of Base Station Type1-C or at TAB connector of Base Station Type 1-H.

1.4.4. Base Station RF Bandwidth

Base Station RF Bandwidth means a RF bandwidth in which the base station transmits and/or receives one or more carriers in a supported operating band.

1.4.5. Base Station RF Bandwidth Edge

Base Station RF Bandwidth Edge means the frequency of one of the base station RF bandwidth edges.

NOTE: The base station RF bandwidth separates the base station RF bandwidth edges.

1.4.6. Basic limit

Basic limit means the emission limit related to the power of a transmitter in accordance with Recommendation ITU-R SM.329 used to determine the unwanted emission requirements.

1.4.7. Beam

The beam means the radiation region, which is the direction with the greatest gain.

1.4.8. Beam center direction

The beam center direction means the direction with half the power of the main beam.

1.4.9. Beam direction pair

Beam direction pair includes the center beam direction and beam peak direction.

1.4.10. Beam peak direction

Beam peak direction means the direction in which the EIRP is greatest.

1.4.11. Base Station channel bandwidth

Base Station channel bandwidth means a radio frequency (RF) bandwidth that supports a single NR RF carrier with a transmission bandwidth in the uplink or downlink.

NOTE: The Base Station channel bandwidth is expressed in MHz, and is used as a reference to the RF requirements of a transmitter and a receiver.

1.4.12. Base station transmission bandwidth configuration

Base station transmission bandwidth configuration means a set of resource blocks within the base station channel bandwidth that can be used for transmission or reception by a base station.

1.4.13. Base station Type 1-O

The base station operates in the FR1 with OTA requirements defined at the radiated interface boundary (RIB).

1.4.14. Base station Type 2-O

The base station operates in the FR2 with OTA requirements defined at the radiated interface boundary (RIB).

1.4.15. Base station Type 1-C

The base station operates in the FR1 with setup requirements at each antenna connector.

1.4.16. Base station Type 1-H

The base station operates in the FR1 with measurement requirements at each TAB connector and OTA requirements defined at the radiated interface boundary (RIB).

1.4.17. Carrier Aggregation

Carrier Aggregation means a technique that combines two or more sub-carriers to support wider bandwidths.

1.4.18. Carrier aggregation configuration

Carrier aggregation configuration describes the specifications for a carrier aggregation base station.

1.4.19. Channel edge

Channel edge means the lowest or highest frequency of the NR carrier.

NOTE: The channel bandwidth separates the channel edges.

1.4.20. Co-location reference antenna

The passive antenna is used as a reference toco-location requirement.

1.4.21. Contiguous carriers

Two or more carriers are configured in a mass spectrum.

1.4.22. Contiguous spectrum

Contiguous spectrum includes a contiguous block of spectrum without sub-block gaps.

1.4.23. Equivalent isotropic radiated power

Equivalent isotropic radiated power means a power radiated from the isotropic equipment with the same field strength at the measuring point as the field strength emitted in the same direction at the same measuring point of that equipment.

1.4.24. Highest Carrier

Highest carrier means the carrier with the highest frequency that is transmitted or received in a specified band.

1.4.25. Inter RF Bandwidth gap

Inter RF Bandwidth gap means a frequency gap between two consecutive base station RF bandwidths located in the two supported operating bands.

1.4.26. Inter-band carrier aggregation

Inter-band carrier aggregation means the aggregation of sub-carriers in different operating bands.

NOTE: The carriers that are aggregated in each band can be contiguous or non-contiguous carriers.

1.4.27. Intra-band contiguous carrier aggregation

Contiguous carriers are aggregated in the same operating band.

1.4.28. Intra-band non-contiguous carrier aggregation

Non-contiguous carriers are aggregated in the same operating band.

1.4.29. Inter-band gap

The frequency gap between two consecutive operating bands is supported.

1.4.30. Lowest Carrier

Lowest Carrier means the lowest carrier frequency to be transmitted or received in a specified band.

1.4.31. Lower sub-block edge

Lower sub-block edge means the lower edge frequency of a sub-block.

NOTE: It is used as a frequency reference to both transmitter and receiver requirements.

1.4.32. Maximum carrier output power

The average power per carrier is measured at the specified interface, during the transmitter ON period.

1.4.33. Maximum carrier TRP output power

The average power is measured at the RIB during the transmitter ON period for a carrier under a specified reference condition, and corresponds to the declared carrier's rated TRP output power (Prated, c, TRP)

1.4.34. Maximum total output power

The average power is measured in the operating band at the specified interface during the transmitter ON period.

1.4.35. Maximum total TRP output power

The average power is measured at the RIB during the transmitter ON period, and corresponds to the rated total output power (Prated, t, TRP) as declared.

1.4.36. OTA coverage range

OTA coverage range means a set of directions in accordance with the TX OTA requirements.

1.4.37. Measurement bandwidth

Measurement bandwidth means a RF bandwidth in which the emission level is assigned.

1.4.38. minSENS

minSENS means the minimum EIS value declared for a OTA sensitivity requirement.

1.4.39. Rated beam EIRP

The rated beam EIRP means the maximum power declared by the manufacturer during the transmitter ON period.

1.4.40. minSENS RoAoA

minSENS RoAoA means a reference RoAoA associated with the OSDD with the declared minimum EIS.

1.4.41. Multi-band connector

Multi-band connector means Base Station Type 1-C or Base Station Type 1-H with an antenna connector associated with a transmitter or a receiver by its ability to handle two or more carriers simultaneously, where at least one carrier is configured at an operating band different from other carriers.

1.4.42. Multi-band RIB

Multi-band RIB means the RIB operating band associated with a transmitter or receiver that is characterized by its ability to handle two or more carriers simultaneously.

1.4.43. Multi-carrier transmission configuration

Multi-carrier transmission configuration means a set of one or more contiguous or non-contiguous carriers that the NR BS may transmit simultaneously in accordance with the equipment manufacturer's published specifications.

1.4.44. Operating band

Operating band means the frequency range in which the NR operates and which is determined with a specific set of specifications.

NOTE: The operating band of a base station is declared by the manufacturer in accordance with table 1.

1.4.45. Non-contiguous spectrum

The spectrum consists of two or more sub-blocks, which are separated by sub-block gaps.

1.4.46. Polarization match

Polarization match means the polarization when a plane wave, directed at the antenna from a certain direction, has the same polarization as the receiving antenna polarization in that direction.

1.4.47. Radiated interface boundary

Radiated interface boundary refers to specific radiation requirements in the operating band.

NOTE: For EIRP/EIS-based requirements, the radiated interface boundary is associated with the far-field region.

1.4.48. Total radiated power

Total radiated power means the total power radiated by the antenna.

NOTE: The total radiated power is the radiated power of two orthogonal polarizations in all directions. The total radiated power is determined in both the near-field and far-field regions.

1.4.49. Radio Bandwidth

Radio bandwidth means the frequency difference between the upper edge of the highest carrier and the lower edge of the lowest carrier.

1.4.50. Reference beam direction pair

Reference beam direction pair means a pair of declared beam directions, including the reference beam center direction and the reference beam peak direction.

1.4.51. Superseding-band

Superseding-band includes the entire uplink and downlink frequency ranges of the operating band.

1.4.52. TAB connector

TAB connector means a TAB connector at the transceiver array boundary.

1.4.53. TAB connector RX min cell group

TAB connector RX min cell group means an operating band declared group of TAB connectors in accordance with the receiver requirements (RX) of Base Station Type 1-H.

1.4.54. TAB connector TX min cell group

TAB connector TX min cell group means an operating band declared group of TAB connectors in accordance with the transmitter (TX) requirements of Base Station Type 1-H.

1.4.55. Transceiver array boundary

Transceiver array boundary means the conducted interface between the transceiver unit array and the antenna.

1.4.56. Rated total output power

Rated total output power means the average power available at the antenna connector as declared by the manufacturer.

1.4.57. Rated total TRP output power

The average power declared by the manufacturer is available at the RIB during the transmitter ON period.

1.4.58. Single-band connector

Single-band connector means Base Station Type 1-C or Base Station Type 1-H with an antenna connector that supports single-band operation but does not meet the multi-band connection condition.

1.4.59. Single-band RIB

The operating band supports a single-band RIB.

1.4.60. Receiver target

The signal is received by Base Station 1-H or Base Station 1-O.

1.4.61. Receiver target redirection range

Receiver target redirection range means the combination of all the sensitivity RoAoA achievable through redirecting the receiver target related to the OSDD.

1.4.62. Receiver target reference direction

Receiver target reference direction means the direction inside the OTA sensitivity declared by the manufacturer for conformance testing.

1.4.63 Reference RoAoA

The sensitivity RoAoA is associated with the receiver target reference direction for each OSDD.

1.4.64. Sub-band

Sub-band means a sub-band of the operating band that contains part of the uplink and downlink frequency range of the operating band.

1.4.65. Rated carrier output power

The average power is declared by the manufacturer for a particular carrier, during the transmitter ON period.

1.4.66. Rated carrier TRP output power

The average power per carrier is declared by the manufacturer at the RIB, including carrier aggregation, single carrier, multi-carrier modes.

1.4.67. OTA sensitivity directions declaration

OTA sensitivity directions declaration means a set of the manufacturer's declarations for EIS and related directions.

1.4.68. OTA REFSENS RoAoA

RoAoA is defined by the points at which the achieved EIS is 3dB greater than the achieved EIS in the reference direction for any AoAoA.

1.4.69. UE transmission bandwidth configuration

UE transmission bandwidth configuration means a set of resource blocks within the UE channel bandwidth that can be used for transmission or reception by the UE.

1.4.70. OTA peak directions set

OTA peak directions set means a set of beam peak directions in which the TX OTA requirements are satisfied.

1.4.71. Sub-block

Spectrum is contiguously allocated for transmission and reception in the same base station.

NOTE: There can be multiple sub-blocks in a base station RF bandwidth.

1.4.72. Sub-block bandwidth

Sub-block bandwidth means the bandwidth of a sub-block.

1.4.73. Sub-block gap

Sub-block gap means the frequency gap between two consecutive sub-blocks within a base station RF bandwidth.

1.4.74. Transmission bandwidth

Transmission bandwidth means the highest transmission bandwidth allocated to the uplink or downlink within a specified channel bandwidth and the unit of measurement is the resource block.

1.4.75. Transmitter OFF period

Transmitter OFF period means the period during which a BS transmitter is not allowed to transmit.

1.4.76. Transmitter ON period

Transmitter ON period means the period during which a BS transmitter transmits data and/or reference symbols.

1.4.77. Transmitter transient period

Transmitter transient period means the period during which the transmitter changes from the OFF period to the ON period or vice versa.

1.4.78. Upper sub-block edge

Upper sub-block edge means the frequency at the upper edge of a sub-block.

NOTE: This frequency is used as a frequency reference for transmitter and receiver requirements.

1.4.79. Frequency range 1 (FR1)

FR1 means the limited frequency range from 410 MHz to 7,125 MHz

1.4.80. Frequency range 2(FR2)

FR2 means the limited frequency range from 24,250 MHz to 52,600 MHz

1.5. Abbreviations

AA              Antenna Array

AAS           Active Antenna System

ACLR                   Adjacent Channel Leakage Ratio

AoA            Angle of Arrival

BS              Base Station

BW             Bandwidth

CA              Carrier Aggregation

CACLR      Cumulative ACLR

CPE            Common Phase Error

CP-OFDM  Cyclic Prefix-OFDM

CW             Continuous Wave

DFTsOFDM         Discrete Fourier Transform-spread-OFDM

DM-RS       Demodulation Reference Signal

EIS             Equivalent Isotropic Sensitivity

EIRP           Effective Isotropic Radiated Power

E-UTRA     Evolved UTRA

EVM           Error Vector Magnitude

FR              Frequency Range

FRC            Fixed Reference Channel

GSCN                  Global Synchronization Channel Number

GSM           Global System for Mobile communications

ITU-R                   Radiocommunication Sector of the International Telecommunication Union

ICS             In-Channel Selectivity

LA              Local Area

LNA           Low Noise Amplifier

MCS           Modulation and Coding Scheme

MR             Medium Range

NR              New Radio

NR-ARFCN         NR Absolute Radio Frequency Channel Number

OBUE                  Operating Band Unwanted Emissions

OCC           Orthogonal Covering Code

OOB           Out-of-band

OSDD                  OTA Sensitivity Directions Declaration

OTA            Over-The-Air

PRB            Physical Resource Block

PT-RS                  Phase Tracking Reference Signal

QAM          Quadrature Amplitude Modulation

RB              Resource Block

RDN           Radio Distribution Network

RE              Resource Element

REFSENS  Reference Sensitivity

RF              Radio Frequency

RIB             Radiated Interface Boundary

RMS           Root Mean Square (value)

RoAoA       Range of Angles of Arrival

RS              Reference Signal

RV              Redundancy Version

RX              Receiver

SCS            Sub-Carrier Spacing

SDL            Supplementary Downlink

SS               Synchronization Symbol

SSB            Synchronization Signal Block

SU              Supplementary Uplink

TAB           Transceiver Array Boundary

TX              Transmitter

TRP            Total Radiated Power

UCI             Uplink Control Information

UEM           Unwanted Emissions Mask

UTRA                  Universal Terrestrial Radio Access

WA             Wide Area

1.6. Symbols

 

 

 

2. TECHNICAL SPECIFICATIONS

2.1. General requirements

The equipment manufacturer shall declare:

-                     The operating bands of the 5G base station;

-                     The operating bands of the 5G base station that support carrier aggregation.

2.1.1. Operating frequency

The operating frequency range of 5G base stations is specified in Table 1.

2.1.2. Base station classification

2.1.2.1. For base stations Type 1-O and 2-O, the classification is determined in accordance with the following criteria:

- Wide area base station: The base station meets the requirements of MacroCell with the minimum distance of 35m from a base station to the UE.

- Medium range base station: The base station meets the requirements of MicroCell with the minimum distance of 5m from a base station to the UE.

- Local area base station: The base station meets the requirements of PicoCell with the minimum distance of 2m from a base station to the UE.

2.1.2.2. For base stations Type 1-C and 1-H, the classification is determined in accordance with the following criteria:

- Wide area base station: The base station meets the requirements of MacroCell with a minimum coupling loss of 70 dB from a base station to the UE.

- Medium range base station: The base station meets the requirements of MicroCell with a minimum coupling loss of 53 dB from a base station to the UE.

- Local area base station: The base station meets the requirements of PicoCell with a minimum coupling loss of 45 dB from a base station to the UE.

2.1.3. Conducted and radiated reference points

2.1.3.1. Base Station Type 1-C: The base station operates in FR1 with setup requirements at each antenna connector. See details as shown in Figure 1.

Figure 1 – Transmitter interface of Base Station Type 1-C

2.1.3.2. Base Station Type 1-H: The base station operates in FR1 with measurement requirements at each TAB connector and OTA requirements defined at the radiated interface boundary (RIB). See details as shown in Figure 2.

Figure 2 - Conducted and radiated reference points of Base Station Type 1-H

2.1.3.3. Base Station Type 1-O: The base station operates in FR1 with OTA requirements defined at the radiated interface boundary (RIB).

2.1.3.4. Base Station Type 2-O: The base station operates in FR2 with OTA requirements defined at the radiated interface boundary (RIB). See details as shown in Figure 3.

Figure 3 - Radiated reference points of Base Stations Type 1-O and 2-O

2.1.4. Base station channel bandwidth

The relationship between the channel bandwidth, gap and transmission bandwidth configuration is as shown in Figure 4.

Figure 4 - Channel bandwidth and transmit bandwidth configuration for a NR channel

Tables 2 and 3 are the NRB transmission bandwidth configuration for each BS channel bandwidth and sub-carrier spacing.

Table 2 - NRB transmission bandwidth configuration in FR1

Table 3 - NRB transmission bandwidth configuration in FR2

Tables 4 and 5 are the minimum gaps for the BS and SCS channel bandwidths in FR1 and FR2.

Table 4 - Minimum gaps (kHz) in FR1

Table 5 - Minimum gaps (kHz) in FR2

 

2.2. Specifications for base stations Type 1-C and 1-H

2.2.1. Base station output power

2.2.1.1. Definition

The base station output power means the power at the antenna connector of base station Type 1-C or at the TAB connector of base station Type 1-H.

2.2.1.2. Limits

a) For Base Station Type 1-C:

Under normal conditions: P_rated,c,AC – 2 ≤ P_max,c,AC ≤ P_rated,c,AC +2

Under extreme conditions: P_rated,c,AC – 2.5 ≤ P_max,c,AC ≤ P_rated,c,AC +2.5

b) For Base Station Type 1-H:

Under normal conditions: P_rated,c,AC – 2 ≤ P_max,TAB,AC ≤ P_rated,c,AC +2

Under extreme conditions: P_rated,c,AC – 2.5 ≤ P_max,TAB,AC ≤ P_rated,c,AC +2.5

In which, the rated output power of the base station is specified as follows:

Table 6 - Rated output power of base station Type 1-C

Table 7 - Rated output power of base station Type 1-H

In which:

- (N_TXU,counted) is the number of TAB connector that transmit signals.

- 10log(N_TXU,counted) is used to calculate the total output power at all TAB connectors of base station Type 1-H.

2.2.2. Transmitter ON/OFF power

This requirement applies only to base stations that operate in TDD duplex mode.

2.2.2.1. Definition

Transmitter OFF power is the average power measured over 70/N µs filtered with a square filter of bandwidth equal to the transmission configuration bandwidth of the base station centered on the assigned channel frequency during the transmitter OFF period.

N = sub-carrier spacing (kHz)/15.

For multi-band connectors, the requirement is only applicable during the transmitter OFF period in all operating bands.

For base stations supporting contiguous spectrum CA, the transmitter OFF power is the average power over 70/N µs filtered with a square filter of a bandwidth equal to the aggregated base station channel bandwidth centered on (F_{edge, low} + F_edge,high)/2 during the transmitter OFF period.

N = (Minimum sub-carrier spacing (kHz) in the aggregated base station channel bandwidth)/2.

2.2.2.2. Limits

- Base station Type 1-C: Transmitter OFF power at the antenna connector ≤ -85 dBm/MHz

- Base station Type 1-H: Transmitter OFF power at the TAB connector ≤ -85 dBm/MHz

2.2.3. Transmitter transition period

2.2.3.1. Definition

Transmitter transition period means the period during which the transmitter is changing from ON to OFF and vice versa.

2.2.3.2. Limits

Base stations Type 1-C, 1-H: Transmitter transient period ≤ 10 µs.

2.2.4. Unwanted emissions

Unwanted emissions include out-of-band emissions and spurious emissions.

- Out-of-band emissions are unwanted emission immediately outside the channel bandwidth resulting from the modulation process and nonlinearity in the transmitter but excluding spurious emissions.

- Spurious emissions are emissions that are caused by unwanted transmitter effects such as harmonic emissions, parasitic emissions, intermodulation products and frequency conversion products, excluding out-of-band emissions.

The limit of the BS transmitter's out-of-band emissions is determined in accordance with the operating band unwanted emissions and the adjacent channel leakage power ratio (ACLR).

Δf_OBUE means the maximum offset between the unwanted emissions in the operating band and the operating band edge. The unwanted emissions are defined as all emissions in each downlink band and the frequency ranges Δf_OBUE above and Δf_OBUE below each band. Unwanted emissions are emissions outside the frequency ranges mentioned above. Δf_OBUE is determined as shown in Table 8.

Table 8 - Maximum offset out of the downlink operating band

Note: For Base station Type 1-H, the unwanted emissions are applied to the TAB connector TX min cell group in all supported configurations.

2.2.5. Adjacent channel leakage power ratio ACLR

2.2.5.1. Definition

Adjacent channel leakage power ratio (ACLR) means the ratio of the RRC mean power on the assigned channel to the RRC mean power on the adjacent channel.

The requirements apply outside the base station RF bandwidth of single-band, multi-band base stations and with any transmission mode declared by the manufacturer.

For base stations transmitting in non-contiguous spectrum, ACLR and CACLR shall apply within sub-block gaps. For a multi-band connector, ACLR and CACLR shall apply within the Inter RF Bandwidth gap. These requirements are determined during the transmitter ON period.

2.2.5.2. Limits

ACLR limits are specified in Table 9.

Table 9 - Base station ACLR

The ACLR absolute value is specified in Table 10.

Table 10 - Base station ACLR absolute values

For operation in non-contiguous spectrum or multiple bands, the ACLR shall be higher than the value specified in Table 11.

Table 11 - Base Station ACLR in non-contiguous spectrum or multiple bands

The Cumulative Adjacent Channel Leakage power Ratio (CACLR) is the ratio of:

- The total mean power filtered on the assigned frequency channel for the two carriers adjacent to each side of the sub-block gap or the Inter RF Bandwidth gap, and

- The mean power filtered on a frequency channel adjacent to one of the respective sub-block edges or Base Station RF Bandwidth edges.

Table 11 and Table 12 specifies the limit and absolute limit threshold of CACLR

Table 12 - Base Station CACLR

Table 13 - CACLR absolute values

- For base station Type 1-C: At the antenna connector, ACLR and CACLR are required conform to Table 10. Table 13 or Table 9, Table 11, Table 12 choose less strict values.

- For base station Type 1-H: At each TAB connector TX min cell group, ACLR and CACLR are required conform to Table 10 + X, Table 13 +X or the values of Table 9+ X, Table 11 + X, Table 12 +X, selecting less strict values. Where X is 10log10(N_{TXU,countedpercell}).

2.2.6. Operating band unwanted emissions

2.2.6.1. Definition

Unless otherwise stated, the operating band unwanted emissions in FR1 are defined from Δf_OBUE below the lowest frequency to Δf_OBUE above the highest frequency of each operating band. The value of Δf_OBUE is determined as shown in Table 8.

This requirement applies to all types of transmitter and transmission modes declared by the manufacturer. For base stations operating in the non-contiguous spectrum, the unwanted emission requirements shall apply in the sub-blocks. For a base station operating in multi bands, these requirements apply within the Inter RF Bandwidth gap.

-                     ∆f is the gap between the channel edge frequency and the nominal -3dB point of the measuring filter closest to the carrier frequency.

-                     f_offsetis the distance between the channel edge frequency and the center frequency of the measuring filter.

-                     f_offset_max is the offset of the frequency f_OBUE outside the operating downlink band.

-                     ∆f_max is equal to f_offset_maxless half of the bandwidth of the measuring filter

For multi-band connectors within any Inter RF Bandwidth gap with W_gap< 2* f_OBUE, the requirement shall apply to the cumulative total of limits related to base station bandwidth edges at each side of the Inter RF Bandwidth gap. The provisions for RF bandwidth edges are specified in this section, in which:

- ∆f is the gap between the base station RF bandwidth edge frequency and the nominal -3 dB point of the measuring filter closest to the base station RF bandwidth edge.

- f_offsetis the frequency offset between the base station RF bandwidth edge and the center frequency of the measuring filter.

- f_offset_max is equal to the Inter RF Bandwidth gapless half of the bandwidth of the measurement filter.

- ∆f_max is equal to f_offset_maxless half of the bandwidth of the measuring filter.

For a multi-band connector, the operating band unwanted emission limits shall apply to all bands supported by the base station. In this case, the cumulative limit of spurious emissions applies to the Inter RF Bandwidth gap between the supported downlink operating band with transmitted carriers and a supported downlink operating band without transmitting any carrier and:

- Where the Inter RF Bandwidth gap of the downlink operating band is supported with a transmitted carrier and a supported downlink operating band without transmitting any carrier and is less than 2*Δf_OBUE, f_offse_tmax shall be the offset of the frequency Δf_OBUE outside the edges of the two supported downlink operating bands, and the operating band unwanted emission limit shall apply to both downlink operating bands.

- In other cases, the operating band unwanted emissions shall be applied from Δf_OBUE below the lowest frequency to Δf_OBUE above the highest frequency of the supported operating band without transmitting any carrier.

For a multi-carrier connector or a single-band connector operating in the non-contiguous carrier aggregation, in-band unwanted emissions apply to the lower edge of the transmitted carrier of the highest carrier frequency in a specified operating band.

Additionally, within any sub-block gap of a single-band connector operating in non-contiguous spectrum, limits are cumulatively applied to adjacent sub-blocks on each side of the sub-block gap, specified in this section, in which

-∆f is the gap between the sub-block frequency edge and the nominal -3 dB point of the measuring filter closest to the sub-block edge.

- f_offset is the offset between the sub-block edge and the center frequency of the filter.

- f_offset_max is equal to the sub-block gap width less half of the bandwidth of the measuring filter.

- ∆f_max is equal to f_offset_max less half of the bandwidth of the measuring filter.

For base stations Type 1-C, the requirements apply to each antenna connector.

For base stations Type 1-H, the TAB connector TX min cell group does not exceed the X plus base limits, where X is 10log10 (N_{TXU,countedpercell}).

The total power of spurious emissions measured at each TAB connector TX min cell group shall be less than or equal to the specified limit.

2.2.6.2. Limits

a. Wide area base station

For base stations operating in bands n5, n8, n28, the unwanted emission limits in the operating band shall comply with the requirements of Table 14.

Table 14 - Operating band unwanted emissions (<1 GHz)

Except for base stations operating in bands n5, n8, n28, Table 15 includes the wide area BS operating band unwanted emission limits:

Table 15 - Operating band unwanted emissions (> 1GHz)

b. Medium range base station

For medium range base stations, the limits are specified in Tables 16 and 17.

For the tables in this section for Base Station Type 1-C P_rated,x = P_rated,c,AC and for Base Station Type 1-H P_rated,x = P_rated,c,cell – 10.log10(N_{TXU,countedpercell}).

Table 16 – Medium range BS operating band unwanted emissions, 31< Prated,x £ 38 dBm

Table 17 - Medium range BS operating band unwanted emissions, Prated,x£ 31 dBm

c. Local area base station

For local area base stations, the operating band unwanted emissions shall comply with Table 18.

Table 18 - Local area BS unwanted emissions

2.2.7. Transmitter spurious emissions

2.2.7.1. Definition

Transmitter spurious emission limits apply from 9 kHz to 12.75 GHz, excluding the frequency range from Δf_OBUE below the lowest frequency of each operating band to Δf_OBUE above the highest frequency of each operating band, where the value Δf_OBUE is specified in Table 8. In particular, for some operating bands, the upper limit is higher than 12.75 GHz in order to comply with recommendation ITU-R SM.329.

For base stations Type 1-C, the requirements apply to each antenna connector.

For base stations Type 1-H, the requirement that apply to the TAB connector TX min cell group shall not exceed the + X basic limits, where, X=10.log10(N_{TXU,countedpercell}). The total power of spurious emissions measured at each TAB connector TX min cell group shall be less than or equal to the specified limit.

Unless otherwise stated, all requirements in this section are measured as mean power.

2.2.7.2. Limits

a) General requirements

Table 19 is the transmitter spurious emission limits in FR1:

Table 19 - Transmitter spurious emission limits in FR1

b) Protection of the BS receiver of own or different base station

The power of any spurious emissions shall comply with the provisions of Table 20.

Table 20 - Spurious emission limits for protection of the BS receivers

c) Operation in the same location as other base stations

The power of any spurious emissions shall comply with the provisions of Table 21.

Table 21 - Spurious emission limits for the protection of other systems

Table 22 - Base station spurious emission limits for BS operating with PHS

d) Base station in the same location as other base stations

These requirements may be applied to protect other base station receivers when GSM900, DCS1800, PCS1900, GSM850, UTRA FDD, UTRA TDD, E-UTRA and/or NR BS stations are installed in the same location.

Table 23 - Spurious emission limits when base stations are co-located

2.2.8. Transmitter intermodulation

2.2.8.1. Definition

Transmitter intermodulation is a measure of the transmitter's ability to eliminate the formation of signals in its nonlinear elements due to the presence of wanted and interfering signals at the transmitter antenna. This requirement applies during the transmitter ON period and the transmitter transient period.

For base station Type 1-C, the transmitter intermodulation level is the power of the intermodulation product when an interfering signal is injected into the antenna connector.

For base station Type 1-H, the transmitter intermodulation level is the power of the intermodulation product when an interfering signal is injected into the TAB connectors. This base station has two types of intermodulation:

- Co-location transmitter intermodulation in which the interference signal is generated by a co-located base station.

- Intra-system transmitter intermodulation in which the interference signal is generated by other transmitters in the same base station.

2.2.8.2. Requirements for base station Type 1-C

For base station Type 1-C, the wanted signal and the interfering signal are specified in Table 24. The interfering signal level is the total radiated output power (P_rated,t,AC) at the antenna connectors in the operating band less 30 dB.

This requirement applies outside the base station RF bandwidth. The interfering signal offset is determined relative to the base station RF bandwidth edges.

For a base station operating in non-contiguous spectrum, the requirement applies within the sub-block gaps for interfering signal offsets where the interfering signal falls completely within the sub-block gap. The interfering signal is determined across the sub-block edges.

For a multi-band connector, the requirement applies to the base station RF bandwidth edges of each operating band assigned to the base station. Where the Inter RF Bandwidth gap is 3 times as small as the channel bandwidth (where the channel bandwidth is the minimum BS channel bandwidth of the band), the requirements shall apply for interfering signal offsets where the interfering signal falls completely within the Inter RF Bandwidth gap.

The transmitter intermodulation level shall not exceed the unwanted emission limits in 2.2.5, 2.2.6 and 2.2.7 in the presence of an interfering signal as shown in Table 24.

Table 24 - Wanted and interfering signal requirements for transmitter intermodulation

2.2.8.3. Requirements for base station Type 1-H

2.2.8.3.1. Co-located base station

The transmitter intermodulation level shall not exceed the unwanted emission limit in the presence of an interfering signal as shown in Table 25.

For TAB connectors and base stations supporting in non-contiguous spectrum, the requirement applies to interfering signal offsets within the sub-block gap when the interfering signal falls completely within the sub-block gap. The interfering signal offset is determined across the sub-block edges.

For a multi-band connector, the requirement applies to the base station RF bandwidth edges of each operating band assigned to the base station. If the Inter RF Bandwidth gap is 3 times as small as the channel bandwidth (where the channel bandwidth is the minimum BS channel bandwidth of the band), the requirements shall apply to the interfering signal offsets where the interfering signal falls completely within the Inter RF Bandwidth gap.

Table 25 - Wanted and interfered signal requirements for transmit intermodulation with base station Type 1-H

2.2.8.3.2. Requirements for intra-system transmitters

The transmitter intermodulation level shall not exceed the unwanted emission limits in 2.2.5 and 2.2.6 in the presence of an interfering signal according to Table 26.

Table 26 - Interfering and wanted signals for intermodulation requirements

2.2.9. Receiver sensitivity

2.2.9.1. Definition

Receiver sensitivity is the minimum mean power received at the antenna connector for base stations Type 1-C or the TAB connector for base stations Type 1-H where the throughput requirement shall be met for the specified reference measurement channel.

2.2.9.2. Requirements

Table 27 - Wide area BS receiver sensitivity

Table 28 - Medium range BS receiver sensitivity

Table 29 – Local area BS receiver sensitivity

2.2.10. Adjacent channel selectivity (ACS)

2.2.10.1. Definition

Adjacent channel selectivity (ACS) is a measure of the receiver’s ability to receive a wanted signal at its assigned channel frequency in the presence of an adjacent channel signal with a specified frequency offset of the interfering signal to the channel edge of an affected system.

2.2.10.2. Requirements

The throughput shall be greater than 95% of the maximum throughput of the reference measurement channel.

For base stations, the wanted signal and interfering signal coupled to the BS type 1-C antenna connector or the BS type 1-H TAB connector are specified in Table 30, and the frequency offset between the wanted signal and interfering signal for adjacent channel selectivity is specified in Table 31. Reference measurement channels for wanted signals are specified in Tables 27, 28 and 29.

The ACS requirements are applied outside the base station RF bandwidth. The interfering signal offset is determined across the base station bandwidth edges.

For base stations operating in non-contiguous spectrum within any band, the ACS requirement shall apply with respect to the inside of any sub-block gap, where the sub-block gap is at least as wide as the interfering signal in Table 31. The interfering signal offset is determined across the sub-block edges within the sub-block gap.

For a multi-band connector, the ACS requirement shall apply within any Inter RF Bandwidth gap, where the Inter RF Bandwidth gap is at least as wide as the NR interfering signal in Table 31. The interfering signal offset is determined across base station RF bandwidths within the Inter RF Bandwidth gap.

The requirements are specified at the BS type 1-C antenna connector and the BS type 1-H TAB connector.

Table 30 – ACS requirements

Table 31 – ACS interfering frequency offsets

2.2.11. In-band blocking

2.2.11.1. Definition

In-band blocking is a measure of the receiver's ability to receive a wanted signal at its assigned frequency channel at the BS Type 1-C antenna connector for or the BS Type 1-H TAB connector.

2.2.11.2. Requirements

The throughput shall be ³ 95% of the maximum throughput of the reference measurement channel, with a wanted signal and interfering signal coupled to base stations Type 1-C and 1-H using the parameters in Tables 33, 34 and 35 for general blocking and narrowband blocking requirements.

In-band blocking requirements apply outside the base station RF bandwidth. The interfering signal offset is determined across the base station RF bandwidth edges.

In-band blocking requirements apply from F_UL,low - Δf_OOB to F_UL,high + Δf_OOB and do not include the downlink frequency range of the operating band. The Δf_OOB for base stations Type 1-C and 1-H is specified in Table 32.

The requirements are specified at the BS Type 1-C antenna connector and the BS Type 1-H TAB connector.

Table 32 - Δf_OOB for NR operating bands

For base stations that operate in non-contiguous spectrum within any band, the in-band blocking requirements are added to the inside of any sub-block gap where the sub-block gap is at least as wide as the interfering signal as shown in Table 33. The interfering signal offset is determined across the sub-block edges within the sub-block gap.

For a multi-band connector, the in-band blocking requirements shall apply for each supported operating band and in addition to the inside of any Inter RF Bandwidth gap, where the Inter RF Bandwidth gap is at least as wide as the NR interfering signal as shown in Table 33.

Table 33 - Base station general in-band blocking requirements

For a base station that operates in non-contiguous spectrum within any band, the narrowband blocking requirements shall be further applied to the inside of any sub-block gap where the sub-block gap is at least as wide as the interfering signal as shown in Table 35. The interfering signal offset is determined across the sub-block edges within the sub-block gap.

For a multi-band connector, the narrowband blocking requirement shall be added to the inside of any Inter RF Bandwidth gap where the Inter RF Bandwidth gap is at least as wide as the NR interfering signal as shown in Table 35. The interfering signal offset is determined across the base station RF bandwidth edges.

Table 34 - Base station narrowband blocking requirements

Table 35 - Narrowband blocking and interference

2.2.12. Out-of-band blocking

2.2.12.1. Definition

Out-of-band blocking is a measure of the receiver's ability to receive a wanted signal at its assigned frequency channel at the BS Type 1-C antenna connector for or the BS Type 1-H TAB connector where the CW interfering signal is used in out-of-band blocking.

2.2.12.2. General requirements

The throughput shall be ³95% of the maximum throughput of the reference measurement channel, with a wanted signal and interfering signal coupled to the BS Type 1-C antenna connector output or the BS Type 1-H TAB connector using the parameters specified in Table 36.

Out-of-band blocking characteristics apply from 1 MHz to F_UL,low - Δf_OOB and from F_UL,high + Δf_OOB to 12.75 GHz, including the downlink frequency range of the FDD operating band. The Δf_OOB for base stations Type 1-C and 1-H is specified in Table 32.

For a multi-band connector, the out-of-band blocking requirement applies to each operating band except for the in-band blocking frequency ranges of the supported operating bands.

Table 36 - Out-of-band blocking requirements for NR

2.2.12.3 Out-of-band blocking for co-located base stations

This requirement aims to protect NR BS receivers when GSM, UTRA, E-UTRA or NR BS systems are co-located. This requirement applies to all operating bands supported by the base station.

The requirements in this section assumes that the coupling loss between the transmitter and the receiver is 30 dB and when installed in the same location.

The throughput shall be ³ 95% of the maximum throughput of the reference measurement channel, with a wanted signal and interfering signal coupled at the BS type 1-C antenna connector or the BS type 1-H TAB connector using the parameters specified in Table 37.

The reference measurement channel of the wanted signal is defined in Table 27, Table 28, Table 29.

Table 37. Out-of-band blocking requirements for co-located base stations

2.2.13. Receiver spurious emissions

2.2.13.1. Definition

Receiver spurious emission power is the power of emissions generated or amplified in the receiver at the BS type 1-C antenna connector or the BS type 1-H TAB connector.

For FDD mode, receiver spurious emissions shall be performed when both TX and RX are ON, with the TX antenna connectors /TAB connectors terminated.

For antenna connectors or TAB connectors that support both transmission and reception in TDD, the receiver spurious emission requirements apply during the transmitter OFF period. For antenna connectors or TAB connectors that support both transmission and reception in FDD, the receiver spurious emission requirements are replaced by the transmitter spurious emission requirements.

For RX multi-band connectors, the spurious emission requirements shall depend on the exclusion zones in each operating band. For multi-band connectors that support both TX and RX in TDD, the receiver emission requirements apply during the transmitter OFF period and depend on the exclusion zones in each operating band.

For base stations type 1-H, the manufacturer shall declare TAB connector RX min cell groups. Each TAB connector RX min cell group (NRXU,counted) for base station type 1-H is calculated by: N_RXU,counted = min(N_RXU,active , 8* N_cells)

N_{RXU,countedpercell} is used for expansion and calculated by N_{RXU,countedpercell}= N_RXU,counted/ N_cells.

2.2.13.2. Limits

The receiver spurious emission limits for base station type 1-C at each antenna connector shall not exceed the limits specified in Table 38.

The level of receiver spurious emissions for base station type 1-H is specified in Table 38 for each TAB connector RX min cell group. The total spurious emission power of TAB connectors shall not exceed the base station limits considered as +X basic limits. Where X = 10log10(N_{RXU,countedpercell}).

Table 38 - Receiver spurious emission limits

2.2.14. Receiver intermodulation

2.2.14.1. Definition

Mixing the third and higher harmonics of two interfering RF signals may produce an interfering signal in the operating band of the wanted channel on the channel frequencies assigned at the BS type 1-C antenna connector or the BS type 1-H TAB connector.

Intermodulation response rejection is a measure of the receiver's ability to receive a wanted signal on its assigned channel frequency in the presence of two interfering signals with a specific frequency relationship to the wanted signal.

2.2.14.2. Requirements

The throughput shall be ³95% of the maximum throughput of the reference measurement channel, with a wanted signal at the assigned channel frequency and two interfering signals coupled to the BS type 1-C antenna connector, or the BS type 1-H TAB connector under the conditions specified in Tables 39, Table 40 for general intermodulation and Table 41, Table 42 for narrowband intermodulation.

The reference measurement channel for wanted signals is defined in Table 39, Table 40 and Table 41 for each base station channel bandwidth.

In general, the sub-carrier spacing for a modulated interfering signal shall be equal to the subcarrier spacing for a wanted signal, unless the carrier spacing of the wanted signal is 60 kHz and the BS channel bandwidth is <= 20 MHz, where the sub-carrier spacing of the interfering signal is 30 kHz.

For a base station that support in non-contiguous spectrum within any operating band, the narrowband intermodulation requirements shall be additionally applied within any sub-block gap where the sub-block gap is at least as wide as the interfering signal as shown in Table 40 or Table 42.

For a multi-band connector, the intermodulation requirements are added to the inside of any Inter RF Bandwidth gap where the gap is at least as wide as the NR interfering signal center frequency offset from the base station RF bandwidth edge.

For a multi-band connector, the narrowband intermodulation requirements are added within any sub-block where the sub-block gap is at least as wide as the interfering signal as shown in Table 40 or Table 42.

Table 39 - General requirements for receiver intermodulation

Table 40 - Intermodulation interfering signals

Table 41 - Narrowband intermodulation requirements in FR1

Table 42 - Interfering signals for narrowband intermodulation requirements in FR1

2.2.15. Channel selectivity

2.2.15.1. Definition

Channel selectivity is a measure of the receiver's ability to receive a wanted signal at its assigned frequency channel at the BS type 1-C antenna connector or the BS type 1-H TAB connector in the presence of an interfering signal with a larger emission spectral density.

2.2.15.2. Requirements

For base stations Type 1-C or 1-H, the throughput shall be ³95% of the maximum throughput of the reference measurement channel with the parameters as defined in Table 43 for wide area base stations, in Table 44 for medium range base stations and in Table 45 for local area base stations.

Table 43 - In-band blocking for wide area base stations

Table 44 - In-band blocking for medium range base stations

Table 45 - In-band blocking for local area base stations

2.2.16. Radiated emissions

2.2.16.1. Definition

Radiated emissions evaluate the ability to limit unwanted emissions from the 5G base station's case port. This test shall be performed on a typical configuration of the equipment under test.

Radiated emissions do not apply to base stations type 1-O and 2-O.

2.2.16.2. Limits

Table 46 - Radiated emission limits for base stations type 1-C and 1-H

2.3. Technical specifications for base stations type 1-O and 2-O

2.3.1. OTA base station output power

2.3.1.1. Definition

The OTA base station output power is the total radiated power TRP at the RIB during the transmitter ON period. The total radiated power is constant with beamforming settings as long as the transmitter beamforming direction remains within the OTA peak direction.

2.3.1.2. Requirements

a) For base stations type 1-O

Under normal conditions: P_rated,c,TRP - 2 ≤ TRP ≤ P_rated,c,TRP + 2.

b) For base stations type 2-O

Under normal conditions: P_rated,c,TRP - 3 ≤ TRP ≤ P_rated,c,TRP +3.

In this case, the rated output power of base station type 1-O is declared by the manufacturer and shall comply with the provisions of Table 47. For base stations type 2-O, no rated input power limit is specified, so the manufacturer declares it itself.

Table 47 –Rated output power limit for base stations type 1-O

2.3.2. OTA transmitter OFF power

2.3.2.1. Definition

The OTA transmitter OFF power is the mean power measured over 70/N µs filtered with a square filter of a bandwidth equal to the transmission configuration bandwidth of the base station centered on the assigned channel frequency during the transmitter OFF period. N = sub-carrier spacing (kHz)/15.

For base stations supporting intra-band contiguous CA, the transmitter OFF power is the mean power measured over 70/N µs filtered with a square filter of a bandwidth equal to the aggregated BS channel bandwidth centered on (F_edge,low + F_edge,high)/2 during the transmitter OFF period. N = (smallest sub-carrier spacing (kHz) in the aggregated BS channel bandwidth)/2.

For base station type 1-O, the transmitter OFF power is the output power at the outputs connected to the reference antenna in the same location.

For base station type 2-O, the transmitter OFF power is defined as TRP.

For a multi-band connector, the requirement applies only during transmitter OFF period in all operating bands.

2.3.2.2. Requirements

- Base station type 1-O: Transmitter OFF power at the antenna connector ≤ -106 dBm/MHz.

- Base station type 2-O: Transmitter OFF power ≤ -36 dBm/MHz.

2.3.2.3. OTA transmitter transient period

2.3.2.3.1. Definition

The transmitter transient period is the period during which the transmitter is changing from ON to OFF and vice versa.

2.3.2.3.2. Requirements

- Base station type 1-O: Transmitter transient period £ 10 µs.

- Base station type 2-O: Transmitter transient period£3 µs.

2.3.3. OTA unwanted emissions

Unwanted emissions include out-of-band emissions and spurious emissions.

The out-of-band emission limits for BS type 1-O and 2-O transmitters are determined by both operating band unwanted emissions (Δf_OBUE) and adjacent channel leakage power ratio (ACLR).

Δf_OBUE is the maximum offset between the unwanted emissions in the operating band and the operating band edge. In this case, the unwanted emissions are defined as all emissions in each downlink operating band plus add the frequency range Δf_OBUE above and below each operating band. Unwanted emissions are emissions outside the frequency ranges mentioned above. Δf_OBUE is defined in Table 48.

Table 48- Maximum offset outside the downlink operating band

2.3.4. Adjacent channel leakage power ratio (ACLR)

2.3.4.1. Definition

Adjacent channel leakage power ratio (ACLR) is the ratio between the filtered mean power at the center of the assigned channel and the filtered mean power at the center of the adjacent channel.

2.3.4.2. Limits

a) For base stations type 1-O:

The ACLR absolute limit of base station type 1-O means the limit specified in Table 10 plus 9 dB, in Table 11 plus 9 dB, or in Table 9, Table 11 or Table 12. The less stringent value shall apply.

For a multi-carrier RIB or contiguous CA, the ACLR requirements will apply to the base station channel bandwidths of the outermost carrier within the frequency range defined in Table 10. For a RIB operating in the non-contiguous spectrum, the ACLR requirements shall apply to the sub-block gap within the frequency range defined in Table 12.

For a multi-band RIB, the ACLR requirements shall apply to Inter RF Bandwidth gaps within the frequency range specified in Table 11, while the CACLR requirements shall apply to Inter RF Bandwidth gaps within the frequency range specified in Table 12.

b) For base stations type 2-O:

The ACLR OTA limit is specified in Table 49. The ACLR OTA absolute limit is specified in Table 50. The CACLR OTA absolute value is specified in Table 50 or Table 53 or the CACLR limit is specified in Table 49, Table 51 or Table 52. The less stringent table values ​​will apply.

For a multi-carrier RIB or contiguous CA, the ACLR OTA requirements in Table 49 applies to the base station channel bandwidths of the outermost carrier within the frequency ranges defined in the table. For a RIB operating in the non-contiguous spectrum, the ACLR OTA requirements in Table 51 apply within the sub-block gaps, while the CACLR OTA requirements in Table 52 apply within the sub-block gaps for the specified frequency ranges.

CACLR in a sub-block gap is the ratio of:

- the total filtered mean power centered on the assigned channel frequency for two adjacent carriers on each side of the sub-block gap, and

- The total filtered power centered on the channel frequency assigned to one of the respective sub-block edges.

Filter parameters for adjacent channel frequencies are specified in Table 52 and filters on assigned channels are specified in Table 54.

For operation in non-contiguous spectrum, the CACLR for NR carriers located on each side of the sub-block gap shall be greater than the value specified in Table 52.

Table 49 –BS type 2-O ACLR

Table 50 – BS type 2-O ACLR absolute limits

Table 51 - BS type 2-O ACLR in non-contiguous spectrum

Table 52 - BS type 2-O CACLR in non-contiguous spectrum

Table 53 - BS type 2-O CACLR absolute limits

Table 54 - Filter parameters for assigned channel

2.3.5. OTA operating band unwanted emissions

2.3.5.1. Definition

OTA operating band unwanted emissions are the radiated carrier power at the RIB unless otherwise stated.

Out-of-band emissions in FR1 are limited by the OTA operating band unwanted emission limits. Unless otherwise stated, the operating band unwanted emission limits are determined from Δf_OBUE below the lowest frequency of each supported operating band to Δf_OBUE above the highest frequency of each supported operating band. The Δf_OBUE value is defined in Table 55.

Table 55 - Δf_OBUE in operating bands

2.3.5.2. Limits

For base stations type 1-O:

The requirements apply to any type of transmitter and all transmission configurations declared by the manufacturer. For a multi-carrier RIB or contiguous CA, the requirements apply to the base station channel bandwidths of the outermost carrier in the frequency range specified in 2.2.6.1.

For a RIB operating in non-contiguous spectrum, the requirements apply within any sub-block gap for the frequency ranges defined in 2.2.6.1.

For a multi-band RIB, the requirements apply within any Inter RF Bandwidth gap for the frequency ranges specified in 2.2.6.1.

The power of the OTA operating band unwanted emissions for base station type 1-O shall not exceed the values ​​specified in 2.2.6.2 plus 9 dB.

Base stations operating in band n20, emission level in band 470 - 790 MHz and the test of 8 MHz filter bandwidth on the center frequency shall comply with Table 56.

Table 56 - Emission requirements for protection of DTT system

For base stations type 2-O:

Out-of-band emissions in FR2 are limited by the operating band unwanted emission limits. The OTA operating band unwanted emission limits in FR2 are defined in the frequency range from Δf_OBUE below the lowest frequency of each operating band to Δf_OBUE above the highest frequency of each operating band. The values of Δf_OBUEare specified in Table 55. These requirements apply to all types of transmitter. For a multi-carrier RIB or contiguous CA, these requirements apply to the frequencies ΔfOBUE starting at the edge of the contiguous transmission bandwidth. For a RIB operating in non-contiguous spectrum, the unwanted emission requirements shall apply in the sub-blocks.

Emissions shall not exceed the values ​​in the following tables, where:

-Δf is the gap between the edge frequency of the adjacent transmission bandwidth and the nominal -3 dB point of the measuring filter closest to the adjacent transmission bandwidth edge.

- f is the distance between the edge frequency of the adjacent transmission bandwidth and the nominal -3 dB point of the measuring filter closest to the carrier frequency.

- f_offset is the distance between the edge frequency of the adjacent transmission bandwidth and the center frequency of the measuring filter.

- f_offset_max is the frequency offset Δf_OBUE outside the downlink operating band.

- Δf_max is equal to f_offset_max less half of the bandwidth of the measuring filter.

Within any sub-block gap, emissions at the RIB operating in non-contiguous spectrum shall not exceed the cumulative sum of the limits specified for sub-blocks adjacent to each sub-block gap. Limits for each sub-block are specified in this section, where:

-Δf is the distance between the sub-block frequency edge and the nominal -3dB point of the measuring filter closest to the sub-block edge.

- f_offset is the offset between the sub-block edge and the center frequency of the filter.

- f_offset_max is equal to the sub-block gap width less half of the bandwidth of the measuring filter.

- Δf_max is equal to f_offset_max less half of the bandwidth of the measuring filter.

Table 57 - OBUE limits in the frequency range of 24.25 – 33.4 GHz

Table 58 - OBUE limits in the frequency range of 37 – 52.6 GHz

2.3.6 OTA transmitter spurious emissions

2.3.6.1. Definition

The unwanted emission in the OTA operating band is the carrier power at the RIB.

2.3.6.2. Limits

a. For base stations type 1-O

a.1) General requirements

Transmitter spurious emission limit shall apply from 9 kHz to 12.75 GHz, (excluding the frequency range from Δf_OBUE below the lowest frequency of each operating band to Δf_OBUE above the highest frequency of each operating band). The values of Δf_OBUEare specified in Table 55. The operating band is greater than 12.75 GHz, which complies with recommendation ITU-R SM.329.

The OTA transmitter spurious emission requirements do not apply to the multi-band RIB at each supported operating band and Δf_OBUE around each operating band.

The requirements will apply to any single-band, multi-band transmitter model with the full range of configurations declared by the manufacturer.

Base station type 1-O includes the OTA transmitter spurious emission requirements based on the total radiated power and co-location requirements not based on the total radiated power.

a.2) OTA transmitter spurious emission requirements

The transmitter spurious emission requirements for BS type 1-O are that the frequency range limit that is greater than 30 MHz in 2.2.7.2(a) applies and the total radiated power of any spurious emission shall not exceed the values specified in 2.2.7.2(a) plus 9 dB.

a.3) Protection ofthe receiver of 5G base station or other base station

The total power of any spurious emission from both polarized outputs of both co-located antenna outputs shall not exceed the values defined in 2.2.7.2(b) less 21 dB.

a.4) Protection of co-located base stations

In a geographical area with more than one co-located base station, the total power of any spurious emissions polarized at the output of the co-located antenna shall not exceed the values defined in 2.2.7.2(d) less 21 dB.

b. Requirements for base station type 2-O

In FR2, the OTA transmitter spurious emission limits apply from 30 MHz to the second harmonic of the upper frequency edge of the downlink operating band, excluding the frequency range from Δf_OBUE below the lowest frequency of each operating band to Δf_OBUE above the highest frequency of each operating band. The values of Δf_OBUE are specified in Table 55. Transmitter spurious emission requirements are specified in Table 59.

Table 59- BS transmitter spurious emission limits in FR2

2.3.7. OTA transmitter intermodulation

2.3.7.1. Definition

OTA transmitter intermodulation is a measure of the transmitter's ability to eliminate the formation of signals in the transmitter's nonlinear elements in the presence of wanted and interfering signals at the transmitter antenna.

The OTA transmission intermodulation requirement does not apply to base stations type 2-O.

2.3.7.2. Limits

For base station type 1-O, the transmitter intermodulation level shall not exceed the TRP limits of OTA unwanted emissions specified in 2.3.6.2(a) (unless required in a3), the OTA operating band unwanted emissions specified in 2.3.5.2 and OTA ACLR specified in 2.3.4.2. The wanted and interfering signal requirements are defined in Table 60.

These requirements apply outside the base station RF bandwidth edges and the interfering signal offset is determined across the base station RF bandwidth edges.

For a RIB supporting in non-contiguous spectrum, this requirement also applies to the inside of a sub-block gap for interfering signal offsets if the interfering signal falls completely within the sub-block gap. The interfering signal offset is determined across the sub-block edges.

For multi-band RIBs, the requirements apply to the base station RF bandwidth edges of each operating band. Where the inter RF Bandwidth gap is less than 3*BW_Channel (where BW_Channel is the minimum channel bandwidth of the base station), the gap requirement will only apply to the interfering signal offsets when the interfering signal falls completely within the inter RF Bandwidth gap.

Table 60 - Wanted and interfering signals for the OTA transmitter intermodulation requirements

2.3.8. OTA receiver sensitivity

2.3.8.1. Definition

Receiver sensitivity is the minimum mean power received at the surface of the radiated receiver antenna to ensure the normal operation of the base station.

2.3.8.2 Requirements

a) For base stations type 1-O

Table 61 – Wide area BS receiver sensitivity

Table 62 – Medium range BS receiver sensitivity

Table 63 – Local area BS receiver sensitivity

b) For base stations type 2-O

Table 64 - OTA receiver sensitivity requirements in FR2

2.3.9. OTA Adjacent channel selectivity (ACS OTA)

2.3.9.1. Definition

OTA adjacent channel selectivity (ACS) is a measure of the receiver's ability to receive an OTA wanted signal at an assigned channel frequency in the presence of an OTA adjacent channel signal with an assigned frequency offset of the interfering signal relative to the channel edge of the affected system.

2.3.9.2. Requirements

a) For base stations type 1-O

The throughput shall be greater than 95% of the maximum throughput of the reference measurement channel. In FR1, the OTA wanted and interfering signals are specified in Tables 65 and 66. The OTA ACS requirements are applied outside the base station RF bandwidth. The OTA interfering signal offset is determined across the base station RF bandwidth edges.

For RIBs supporting operation in non-contiguous spectrum within any operating band, the OTA ACS requirement shall apply within any sub-block gap where the sub-block gap is at least as wide as the interfering signal as shown in Table 66. The interfering signal offset is determined across the sub-block edges within the sub-block gap.

For a multi-band RIB, the ACS requirement shall apply within any Inter RF Bandwidth gap where the Inter RF Bandwidth gap is at least as wide as the NR interfering signal as shown in Table 66. The interfering signal offset is determined across the base station RF bandwidths within the Inter RF Bandwidth gap.

Table 65 - Adjacent Channel Selectivity (ACS) Requirements for BS type 1-O

Table 66 - Interference requirements for BS type 1-O ACS

b) For base stations type 2-O

The throughput shall be greater than 95% of the maximum throughput of the reference measurement channel. In FR2, the OTA wanted and interfering signals are specified in Tables 67 and 68. The OTA ACS requirements are applied outside the base station RF bandwidth. The OTA interfering signal offset is determined across the base station RF bandwidth edges.

For RIBs supporting operation in non-contiguous spectrum within any operating band, the OTA ACS requirements shall apply within any sub-block gap where the sub-block gap is at least as wide as the interfering signal as shown in Table 68. The interfering signal offset is determined across the sub-block edges within the sub-block gap.

Table 67 - Adjacent Channel Selectivity (ACS) Requirements for BS type 2-O

Table 68 - OTA ACS interfering signal frequency offset for BS type 2-O

2.3.10. OTA in-band blocking

2.3.10.1. Definition

OTA in-band blocking is a measure of the receiver's ability to receive an OTA wanted signal at the assigned frequency channel in the presence of interference.

2.3.10.2. Requirements

a) For base stations type 1-O

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel with wanted and interfering signals as shown in Table 70, Table 71 and Table 72.

OTA in-band blocking requirements apply outside the base station RF bandwidth. The interfering signal offset is determined across the base station RF bandwidth edges.

The OTA in-band blocking requirements will be applied in the frequency range from F_UL,low - Δf_OOB to F_UL,high + Δf_OOB, excluding the operating band. The Δf_OOB values for base stations type 1-O are specified in Table 69.

For RIBs supporting operation in non-contiguous spectrum within any operating band, if the sub-block gap is at least twice as wide as the minimum interfering signal offset in Table 70, the OTA in-band blocking requirements shall be supplemented within any sub-block gap.

For a multi-band RIB, the OTA in-band blocking requirements apply to the in-band blocking frequency range for each supported operating band. If the Inter RF Bandwidth gap is at least twice as wide as the minimum interfering signal offset in Tables 70 and 72, the OTA in-band blocking requirements shall be added within the Inter RF Bandwidth gap.

For RIBs supporting operation in non-contiguous spectrum within any operating band, when the sub-block gap is at least twice as wide as the minimum interfering signal offset in Table 72, the OTA narrowband blocking requirements shall be added within any sub-block gap.

For a multi-band RIB, the OTA narrowband blocking requirements apply within the narrowband blocking frequency ranges of each operating band. When the Inter RF Bandwidth gap is at least twice as wide as the minimum interfering signal offset in Table 72, the OTA narrowband blocking requirements shall be added within the Inter RF Bandwidth gap.

Table 69 - f_OOB for NR operating bands in FR1

Table 70 - General OTA blocking requirement for BS type 1-O

Table 71 - OTA narrowband blocking requirement for BS type 1-O

Table 72 - OTA narrowband blocking interfering signal frequency offsets for BS type 1-O

b) For base stations type 2-O

The OTA in-band blocking requirements apply outside the base station RF bandwidth. The interfering signal offset is determined across the base station RF bandwidth edges.

The OTA in-band blocking requirements will be applied in the frequency range from F_UL,low - Δf_OOB to F_UL,high + Δf_OOB, excluding the operating band. The Δf_OOB values for base stations type 2-O are specified in Table 73.

For RIBs supporting operation in non-contiguous spectrum within any operating band, if the sub-block gap is at least twice as wide as the minimum interfering signal offset as shown in Table 74, the OTA blocking requirements shall be added within any sub-block gap.

Table 73 - f_OOB for NR operating bands in FR2

Table 74 - OTA blocking requirement for BS type 2-O

2.3.11. OTA out-of-band blocking

2.3.11.1. Definition

OTA out-of-band blocking is a measure of the receiver's ability to receive a wanted signal at the OTA RIB at the assigned frequency channel in the presence of an unwanted signal.

2.3.11.2. Requirements

a) For base stations type 1-O

General requirements: For a multi-band RIB, the OTA out-of-band blocking requirements apply to each supported operating band, excluding in-band blocking frequency ranges specified in 2.2.11.

Out-of-band blocking requirements apply within the frequency range from 30 MHz to F_UL,low - Δf_OOB and from F_UL,high + Δf_OOB to 12 750 MHz, including the downlink frequency range of the FDD operating band for base stations that support FDD mode. The Δf_OOB values for base stations type 1-O are specified in Table 59. The wanted and interfering signals at the RIB are specified in Table 75.

Table 75 - OTA out-of-band blocking requirements

Out-of-band blocking requirements for co-located base stations: These requirements aim to protect NR BS receivers when GSM, UTRA, E-UTRA or NR BS systems that operate in a different frequency range are co-located with the NR BS. The wanted and interfering signals at the RIB are specified in Table 76. Out-of-band blocking requirements for co-located base stations shall apply to all protected BS operating bands.

Table 76 –OTA out-of-band blocking requirements for co-located base stations

b) For base stations type 2-O

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, so the out-of-band blocking requirements shall be applied within the range from 30 MHz to F_UL,low - 1 500 MHz and from F_UL,high + 1 500 MHz. The OTA wanted and interfering signals at the RIB apply the parameters in Table 77.

Table 77 - OTA out-of-band blocking requirements for BS type 2-O

2.3.12. OTA receiver spurious emissions

2.3.12.1. Definition

The power of OTA receiver spurious emissions power is the power of emissions radiated from the array antenna to the receiver. The parameter used to receive OTA receiver spurious emissions for base stations type 1-O and 2-O is the total radiated power determined at the RIB.

2.3.12.2. Requirements

a) For base stations type 1-O

The base station operates in FDD mode. Because RX and TX spurious emissions are not distinguished in the OTA domain, the OTA receiver spurious emission requirements are not specified, but only the OTA transmitter spurious emission requirements are applied.

For a base station operating in TDD, the receiver spurious emission requirements apply during the transmitter OFF period.

For a multi-band RIB, the applicable receiver spurious emission requirements exclude zones within each supported operating band.

BS type 1-O receiver spurious emissions requirements are specified in Table 78, the total power of emissions at the RIB shall not exceed the value in Table 78 plus 9 dB, unless otherwise specified.

Table 78 –BS type 1-O receiver spurious emissions

b) For base stations type 2-O

The OTA receiver spurious emission requirements apply during the transmitter OFF period. For base stations type 2-O, the power of any receiver spurious emissions shall not exceed the value specified in Table 79.

Table 79 - BS type 2-O receiver spurious emissions

Table 80 - Hopping step of frequencies to determine BS type 2-O receiver spurious emissions

2.3.13. OTA receiver intermodulation

2.3.13.1. Definition

Mixing the third and higher harmonics of two RF interfering signals can produce interfering signals in the operating band of the wanted channel. Intermodulation response rejection is a measure of the receiver's ability to receive a wanted signal on its assigned channel frequency when two interfering signals have a specific frequency relationship with the wanted signal.

2.3.13.2. Limits

a) For base stations type 1-O

The requirements are applied at the RIB. The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted signal at the assigned frequency channel and two interfering signals at the RIB under the conditions specified in Table 81, Table 82 for intermodulation performance and in Table 83, Table 84 for the narrowband intermodulation performance.

The reference measurement channel for the wanted signal is defined in Table 81, Table 82 and Table 83 for each base station channel bandwidth.

The sub-carrier spacing of the modulated interfering signal is similar to the sub-carrier spacing of the wanted signal, unless the sub-carrier spacing of the wanted signal is 60 kHz and the base station channel bandwidth is ≤ 20 MHz, where the sub-carrier spacing of the interfering signal is 30 kHz.

The receiver intermodulation requirements apply outside the base station RF channel bandwidth or base station RF bandwidth edges. The interfering signal offset is determined across the base station RF bandwidth edges.

For RIBs supporting operation in non-contiguous spectrum within any operating band, when the sub-block gap is at least as wide as the base station RF channel bandwidth of the NR interfering signal in Tables 82 and 84, the narrowband intermodulation requirements shall apply within the sub-block gap. The interfering signal offset is defined across the sub-block edges within the sub-block gap.

For multi-band RIBs, when the sub-block gap is at least twice as wide as the minimum center frequency offset of the NR interfering signal from the base station RF bandwidth edge, additional intermodulation requirement shall apply within any Inter RF Bandwidth gap.

For multi-band RIBs, when the sub-block gap is at least as wide as the NR interfering signal as shown in Tables 82 and Table 84, additional narrowband intermodulation requirements shall apply within any Inter RF Bandwidth gap.

Table 81 - General requirements for intermodulation

Table 82 - Interfering signals for intermodulation requirements

Table 83 - Narrowband intermodulation in FR1

Table 84 - Interfering signals for narrowband intermodulation requirements in FR1

For base stations type 2-O

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with an OTA wanted signal at the assigned frequency channel and two OTA interfering signals at the RIB under the conditions specified in Table 85 and Table 86.

The sub-carrier spacing of the interfering signal coincides with the sub-carrier spacing of the wanted signal.

The receiver intermodulation requirements apply outside the base station RF bandwidth. The interfering signal offset is determined across the base station RF bandwidth edges.

Table 85 - Intermodulation requirements

Table 86 - Interfering signals for intermodulation

2.3.14. OTA channel selectivity

2.3.14.1. Definition

OTA channel selectivity is a measure of the receiver's ability to receive a wanted signal at an assigned resource block in the presence of an interfering signal with a larger power spectral density.

2.3.14.2. Requirements

a) For base stations type 1-O

The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel.

Table 87 - In-channel selectivity for wide area base stations

Table 88 - In-channel selectivity for medium range base stations

Table 89 - In-channel selectivity for local area base stations

b) For base stations type 2-O

Table 90 - OTA in-band channel selectivity for base stations type 2-O

2.4. 5G Base Station Performance Requirements

2.4.1. Peak spectral efficiency

2.3.1.1. Definition

Peak spectral efficiency is the maximum transmission rate under ideal conditions and is expressed in bits/s/Hz.

2.3.1.2. Requirements

The base station has 8 downlinks and 4 uplinks:

- Downlink: 30 bit/s/Hz.

- Uplink: 15 bit/s/Hz.

The base station has 4 downlinks and 2 uplinks:

- Downlink: 15 bit/s/Hz.

- Uplink: 7.5 bit/s/Hz.

2.4.2. Coherence bandwidth

2.4.2.1. Definition

The coherence bandwidth is the maximum combined bandwidth of the system.

2.4.2.2. Requirements

Coherence bandwidth ≥ 100 MHz.

2.4.3. Modulation types

The base station at least supports modulation types: 16 QAM, 64 QAM, 256 QAM for uplinks and downlinks.

2.4.4. Temperature, humidity

The base station is capable of operating in the following environments:

- Temperature: -10 to +55°C.

- Humidity: 5% to 95%.

3. MEASUREMENT METHODS

3.1. Measurement uncertainty

The results recorded in the test report of the measurements specified in this Regulation shall be construed as follows:

-                     The measured value relative to the corresponding limit used to determine whether the equipment meets the requirements of the Regulation;

-                     Each parameter’s uncertainty value for the measurement shall be included in the test report;

-                     For each measurement, the recorded value of the measurement uncertainty shall be less than or equal to the value defined in Tables 91 to 96.

3.2.1.1. For base stations type 1-C, 1-H

Table 91 - Maximum uncertainty of transmitter test system

Table 92 - Maximum uncertainty of receiver test system

3.2.1.2. For base stations type 1-O, 2-O

Table 93 - Maximum uncertainty of the FR1 OTA transmitter test system

Table 94 - Maximum uncertainty of the FR2 OTA transmitter test system

Table 95 - Maximum uncertainty of the FR1 OTA receiver test system

Table 96 - Maximum uncertainty of the FR2 OTA receiver test system

3.2. Test method for base stations type 1-C, 1-H

3.2.1. Base station output power

3.2.1.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-1.

Base station RF bandwidth locations to be measured:

- B_RFBW, M_RFBW and T_RFBW: single band, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.1.2. Measurement procedure

For a base station type 1-H when there are many TAB connectors, one or more connectors can be measured at the same time. Whatever measurement method is used, the test shall be performed with all TAB connectors.

1) Connect the power meter to the antenna connector, so all other connectors are terminated.

2) Measure the maximum carrier power P_max,c,AC, P_max,c,TABC for each carrier at each connector.

Additionally, the following steps apply to a multi-band connector:

3) For a single-band and multi-carrier BS test, repeat the above steps for each relevant operating band, where the single-band test setups and measurement models apply to the carrier that does not work in another band.

3.2.2. Transmitter OFF power

3.2.2.1. Measurement procedure

Test environment: Normal.

RF channels to be measured for single carrier: B, detailed in 4.9.1 ETSI TS 138 141-1.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- M_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.3.3.2. Measurement procedure

1)                Connect the base station antenna to the meter. All antenna connectors that are not tested should be terminated.

2)                For single carriers, set up the antenna connector or TAB connector to be measured in accordance with the cConfiguration specified in 4.8 using measurement models or set up physical channels defined in 4.9.2 with the rated power at each antenna connector or TAB connector as declared by the manufacturer. For a connector capable of multi-band transmission or carrier aggregation, set up the connector to be measured and transmitted on all configured carriers using the power and test configurations defined in 4.7 and 4.8 respectively. For respective measurement models or physical channels, see 4.9.2 ETSI TS 138 141-1.

3)                Measure the average power spectral density in 70/N μs filtered by a square filter equal to the RF bandwidth of the antenna connector or TAB connector centered on the center frequency of the RF bandwidth. The 70/N μs window is calculated from 35/N μs after the transmitter ON period + 10 μs to 35/N μs before the start of the next ON period – 10 μs.N = SCS/15, where SCS is the sub-carrier spacing, expressed in kHz.

4)                For an antenna connector or an adjacent CA-enabled TAB connector, measure the average power spectral density above 70/N μs filtered by a square filter of the base station RF channel bandwidth centered on (Fedge,low + Fedge,high)/2. The 70/N μs window is calculated from 35/N μs after the transmitter ON period + 10 μs to 35/N μs before the start of the next ON period – 10 μs.N = SCS/15, where SCS is the smallest sub-carrier spacing in the aggregated base station RF channel bandwidth, expressed in kHz.

3.2.3. Adjacent channel leakage power ratio (ACLR)

3.2.3.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-1.

Base station RF bandwidth positions to be measured:

- B_RFBW, M_RFBW and TRFBW: single band, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1 for details.

3.2.3.2. Measurement procedure

1) Connect the meter to the base station antenna connector.

The characteristics of the meter shall be:

- Bandwidth of measuring filter: specified in 2.2.5;

- Detection mode: real voltage RMS or real mean power.

2) For a BS capable of single carrier operation only, set up the base station to transmit the rated output power P_rated,c,AC for base station type 1-C and P_rated,c,TAB for base station type 1-H. Set up the channel according to NR-FR1-TM1.1 of ETSI TS 138 141-1.

For a multi-carrier BS or CA, set up the base station to transmit on all carriers using the measurement models and set up the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138 141-1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

3) Measure the adjacent channel leakage power ratio for frequency offsets on both sides of the channel frequency as specified in Table 9. In the case of multiple carriers, measurements shall be made only of those frequencies below the lowest carrier frequency and above the highest carrier frequency as transmitted.

4) For the applicable ACLR requirement within the sub-block gap for non-contiguous spectrum operation or within the Inter RF Bandwidth gap for multi-band operation:

a) Measure the ACLR within the sub-block gap or Inter RF Bandwidth gap as specified in 2.2.5, if feasible.

b) Measure the CACLR within the sub-block gap or Inter RF Bandwidth gap as specified in 2.2.5, if feasible.

5) Repeat the test with channel setting according to NR-FR1-TM1.2, clause 4.9.2 of ETSI TS 138 141-1.

Additionally, the following steps apply to a multi-band connector:

6) For single-band and multi-carrier BS tests, repeat the above steps for each operating band, where the single-band test setup and measurement model applies to the carrier that does not work in another operating band.

3.2.4. Operating band unwanted emissions

3.2.4.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-1.

Base station RF bandwidth positions to be measured:

- B_RFBW, M_RFBW and T_RFBW: single band, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

Test setup:

1) Connect the meter to the base station antenna connector. All connectors that are not tested shall be terminated.

In general, the resolution bandwidth of the meter should be equal to the measurement bandwidth. However, in order to increase the accuracy, sensitivity, performance of the measurement, and avoid carrier leakage, the resolution bandwidth can be less than the measurement bandwidth. When the resolution bandwidth is less than the measurement bandwidth, the results shall be integrated into the measurement bandwidth to obtain an equivalent interfering bandwidth of the measurement bandwidth. The characteristics of the meter shall be:

- Detection mode: real voltage RMS.

3.2.4.2. Measurement procedure

1) For a BS capable of single carrier operation only, set up the base station to transmit the rated output power P_rated,c,AC for base stations type 1-C and P_rated,c,TAB for base stations type 1-H. Set up the channel according to NR-FR1-TM1.1 of ETSI TS 138 141-1.

For a multi-carrier BS or CA, set up the base station to transmit on all carriers using the measurement model and set the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138 141 -1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

2) Shift the center frequency of the measuring filter in adjacent steps and measure the emission in the assigned frequency ranges with the specified measurement bandwidth. For a multi-band connector or a BS operating in non-contiguous spectrum, emissions in the Inter RF Bandwidth gap or sub-block gap shall be measured using the specified measurement bandwidth from the nearest base station RF bandwidth edge or sub-block edge.

3) Repeat the test with channel settings according to NR-FR1- TM1.2 of ETSI TS 138 141-1.

Additionally, the following steps apply to a multi-band connector:

4) For single-band and multi-carrier BS tests, repeat the above steps for each relevant operating band where the single-band test setups and measurement models apply to the carrier not operating in another operating band.

3.2.5. Transmitter spurious emission

3.2.5.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier:

- B when measuring spurious emissions below F_DL,Low - Δf_OBUE;

- T when measuring spurious emissions are tested above F_DL,high + Δf_OBUE.

Base station bandwidth positions to be measured for multi-band connectors or CA:

B_RFBW when measuring spurious emissions below F_DL,Low-Δf_OBUE, T_RFBW when measuring spurious emissions above F_DL,high+Δf_OBUE.

B_RFBW_T'_RFBW when measuring spurious emissions below the F_DL,Low-Δf_OBUE of the lowest frequency and B'_RFBW_T_RFBW when measuring spurious emissions above the F_DL,high+Δf_OBUE of the highest frequency.

3.2.5.2. Measurement procedure

1) Connect the antenna connector of the BS to the meter, all other connectors that are not tested shall be terminated.

2) Measurements shall use the measurement bandwidth specified in 2.1. The characteristics of the meter shall include:

- Detection mode: real voltage RMS.

3) For a BS capable of single carrier operation only, set up the base station to transmit the rated output power P_rated,c,AC for base stations type 1-C and P_rated,c,TAB for base stations type 1-H. Set up the channel according to NR-FR1-TM1.1 of ETSI TS 138 141-1.

For a multi-carrier BS or CA, set up the base station to transmit on all carriers using the measurement model and set up the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138 141 -1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

4) Measure the emissions at the assigned frequencies with the specified measurement bandwidth and the measured value shall not exceed the specified value.

Additionally, the following steps apply to a multi-band connector:

5) For single-band and a multi-band BS tests, repeat the above steps for each operating band where the single-band test conditions and measurement models apply to the carrier that does not work in another operating band.

3.2.6. Transmitter intermodulation

3.2.6.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-band connectors or CA:

- B_RFBW: Single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.6.2. Measurement procedure

1) Connect the signal analyzer to the antenna connector of the base station, other connectors that are not tested shall be terminated.

2) Characteristics of the meter:

- Detection mode: real voltage RMS.

3) For a BS capable of single carrier operation only, set up the base station to transmit the rated output power P_rated,c,AC for base station type 1-C and P_rated,c,TAB for base station type 1-H. Set up the channel according to NR-FR1-TM1.1 in ETSI TS 138 141-1.

For a BS capable of multi-carrier operation or CA, set up the base station to transmit on all carriers using the measurement model and set up the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138 141 -1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

4) Generate an interfering signal according to NR-FR1-TM1.1 in ETSI TS 138 141-1, with a minimum channel bandwidth of 15 kHz SCS and a center frequency offset from the upper/lower edge of the wanted signal or sub-block edge f_offset = ±BW_channel (n-1/2) for n=1,2 and 3 but excluding interfering frequencies beyond the assigned downlink operating band, or interfering frequencies thatdo not fall completely within the sub-block gap or within the Inter RF Bandwidth gap.

5) Adjust the ATT so that the interfering signal is as specified.

6) Measure out-of-band emissions for all third and fifth order intermodulation components in the frequency ranges. The width of the intermodulation components shall be taken into account.

7) Measure transmitter spurious emissions for all third and fifth order intermodulation components in the frequency ranges. The width of the intermodulation components shall be taken into account.

8) Test that the emission level does not exceed the required level, except for interfering signal frequencies.

9) Repeat the test for the remaining interfering signal center frequency offsets.

Additionally, the following steps apply to a multi-band connector:

10) For single-band and multi-band BS tests, repeat the above steps for each operating band where single-band test setups and measurement models apply to the carrier that does not work in another operating band.

NOTE The third order intermodulation components are (2F1 ± F2) and (F1 ± 2F2), the fifth order intermodulation components are (3F1 ± 2F2), (2F1 ± 3F2), (4F1 ± F2), and (F1 ± 4F2), where F1 corresponds to the center frequency of the wanted signal or the center frequency of each sub-block and F2 corresponds to the center frequency of the interfering signal.

The widths of the intermodulation components are:

(n x BW_F1 + m x BW_F2) for components nF1 ± mF2;

(n x BWF2 + m x BWF1) for components mF1 ± nF2;

Where BW_F1 corresponds to the wanted signal RF bandwidth, or the channel bandwidth in the case of a single carrier, or the sub-block bandwidth.

3.2.7. Receiver sensitivity

3.2.7.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-band connectors or CA:

- M_RFBW: Single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.7.2 Measurement procedure

1) Connect the meter to the antenna connector, all other connectors shall be terminated.

2) Configure the base station to transmit the maximum power P_max,c,AC (base station type 1-C), P_max,c,TABC (base station type 1-H).

3) Generate a signal to be transmitted on the fixed reference channel.

4) Adjust the power of the wanted signal.

5) Measure the base station throughput as specified in Appendix A.1 of ETSI TS 138 141-1.

Additionally, the following steps apply to a multi-band connector:

6) For single-band and multi-carrier BS tests, repeat the above steps for each operating band, where the single-band test setups and measurement models apply to the carrier that does not work in another operating band.

3.2.8. Adjacent channel selectivity

3.2.8.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-band connectors or CA:

- M_RFBW: Single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.8.2. Measurement procedure

1) Connect the meter to the antenna connector.

2) Set up the transmitter base station:

- The single-band base station transmits the rated output power as declared by the manufacturer;

- For a multi-band connector or CA, set up the base station to transmit on all carriers using the measurement models and power settings respectively as specified in 4.7 and 4.8 of ETSI TS 138 141-1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

3) Set the wanted signal to be transmitted according to 2.2.15.

4) Set the interfering signal at the adjacent channel frequency and adjust the interfering signal at the BS connector to the level specified in 2.2.15.

5) Measure the throughput as specified in Appendix A.1 of ETSI TS 138 141-1.

Additionally, the following steps apply to base stations capable of multi-carrier operation with separate antenna connectors:

6) For multiband tests, repeat the above steps for each relevant operating band where the single band test settings apply to a carrier that does not work in another operating band.

3.2.9. In-band blocking

3.2.9.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-band connectors or CA:

- M_RFBW: Single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.9.2. Measurement procedure

1) Connect the meter to the antenna connector, all other connectors shall be terminated.

2) Set up the transmitter base station:

- The single-band base station transmits the rated output power as declared by the manufacturer;

- For a multi-band connector or CA, set up the base station to transmit on all carriers using the corresponding power setting and measurement model as specified in 4.7 and 4.8 of ETSI TS 138 141-1, or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

3) Set the wanted signal to be transmitted according to 2.2.11.

4) Set the interfering signal to broadcast frequencies defined in 2.3. The interfering signal shall be scanned in 1 MHz hop from the smallest offset from the channel edge of the wanted signal specified in 2.2.11.

5) Measure the throughput as specified in Appendix A.1 of ETSI TS 138 141-1.

Additionally, the following steps apply to base stations capable of multi-carrier operation with separate antenna connectors:

6) For multi-band tests, repeat the above steps for each relevant operating band where the single band test settings apply to the carrier that does not work in another operating band.

3.2.10. Out-of-band blocking

3.2.10.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for base stations operating in multiple carriers:

- M_RFBW: Single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

Additionally, for a multi-band connector:

- B_RFBW_T'_RFBW: Out-of-band blocking test above the highest frequency;

- B'_RFBW_T_RFBW: Out-of-band blocking test below the lowest frequency.

3.2.10.2. Measurement procedure

1) Connect the meter to the antenna connector.

2) Set up:

- The transmitter base station according to 4.9.2 of ETSI TS 138 141-1;

- Set up the transmitter base station on all carriers using the corresponding power setting and measurement model as specified in 4.7 and 4.8 of ETSI TS 138 141-1 or set up a physical channel according to 4.9.2 of ETSI TS 138 141-1.

The transmitter can be turned OFF for out-of-band blocking tests when the frequency of the interceptor such as the second and third order intermodulation does not fall within the wanted signal bandwidth.

3) Set the wanted signal to be transmitted according to 2.2.12.

4) Set the interfering signal to broadcast frequencies defined in 2.3. The interfering signal will be scanned in 1 MHz hop over the frequency range from 1 MHz to (F_{UL_low} - Δf_OOB) MHz and (F_{UL_high} + Δf_OOB) to 12 750 MHz.

5) Measure the throughput as specified in Appendix A.1 of ETSI TS 138 141-1.

Additionally, the following steps apply to BSs capable of multi-carrier operation with separate antenna connectors:

6) For multi-band tests, repeat the above steps for each relevant operating band where the single band test settings apply to the carrier that does not work in another operating band.

3.2.11. Receiver spurious emissions

3.2.11.1. Initial conditions

Test environment: Normal, see Appendix A.

RF channels to be measured for single carrier: M, detailed in 4.9.1 ETSI TS 138 141-1.

Base station bandwidth position to be measured for multi-carrier base stations:

- M_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.11.2. Measurement procedure

1) Connect the meter to the antenna connector.

2) Set up the base station to transmit the rated output power P_rated,c,AC for base station type 1-C and P_rated,c,TAB for base station type 1-H. Set up the channel according to NR-FR1-TM1.1 of ETSI TS 138 141-1.

For a multi-carrier BS or CA, set up the base station to transmit on all carriers using the measurement model and set the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138 141 -1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

3) Set up the test parameters as specified in Table 38.

4) Measure the receiver spurious emissions on each operating band specified in Table 38.

5) For a multi-band connector, repeat the above steps until the bands are fully tested.

3.2.12. Receiver intermodulation

3.2.12.1. Initial conditions

Test environment: Normal, see Appendix A.

RF channels to be measured for single carrier: M, detailed in 4.9.1 ETSI TS 138 141-1.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- M_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-1;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-1.

3.2.12.2. Measurement procedure

1) Connect the meter to the antenna connector.

2) Set up the base station:

- For a BS capable of single carrier operation only, set up the base station to transmit the rated output power P_rated,c,AC for base stations type 1-C and P_rated,c,TAB for base stations type 1-H.

- For a multi-carrier BS or CA, set up the base station to transmit on all carriers using the measurement model and set the corresponding power as specified in 4.7 and 4.8 of ETSI TS 138. 141-1 or set up the physical channel according to 4.9.2 of ETSI TS 138 141-1.

3) Set up the generation and transmission of the wanted signal as specified in Tables 39 and 41.

4) Generate and transmit interfering signal as specified in Table 39 and Table 41.

5) Measure the throughput according to Appendix A.1.

6) For single-band and multi-band BS tests, repeat the above steps for each operating band where the single-band test conditions and measurement models apply to the carrier that does not work in another operating band.

3.2.13. Channel selectivity

3.2.13.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

3.2.13.2. Measurement procedure

1) Generate and transmit wanted signals as specified in Tables 43 to 45.

2) Generate and transmit interfering signals as specified in Tables 43 to 45.

3) Measure the throughput according to annex A.1.

4) For single-band and multi-band BS tests, repeat the above steps for each operating band where the single-band test conditions and measurement models apply to the carrier that does not work in another operating band.

3.2.14. Radiated emission

Comply with 3.3.8, QCVN 111:2017/BTTTT.

1) A test site that meets the requirements of Recommendation ITU-R SM.329-10 shall be used. The EUT shall be mounted on a non-conductive support and shall be operated from the power supply via an RF filter to avoid radiation from the electrical conductors. The mean power of any spurious components shall be detected by the test antenna and the measuring receiver (e.g. spectrum analyzer). At each frequency at which the component is detected, the EUT shall be rotated and the height of the test antenna adjusted to obtain a maximum response and the effective radiated power (ERP) of that component determined by an alternative measurement. The measurement shall be repeated with the test antenna in the plane of orthogonal polarization.

2) The BS shall transmit signals at the maximum power declared by the manufacturer with all active transmitters. Set up the base station to transmit the signal as shown in the applicable section to measure spurious emissions. In the case of repeater equipment, gain and output power shall be adjusted to the maximum value as declared by the manufacturer. Use the input signal as shown in the applicable section to measure spurious emissions.

3) The receiver power shall be measured over the frequency range from 30 MHz to F_DL,low - Δf_OBUE and from F_DL,high + Δf_OBUE to 12 750 MHz. The video bandwidth should be approximately three times as wide as the resolution bandwidth. If this video bandwidth is not available at the measuring receiver, it shall be maximum and at least 1 MHz.

3.3. Test method for base stations type 1-O, 2-O

3.3.1. OTA base station output power

3.3.1.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-2.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- B_RFBW, M_RFBW and T_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-2;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-2.

3.3.1.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Adjust the base station that transmits signal to the test system.

3) Configure the base station with beam peak directions while performing the test in step 6 in accordance with the TRP test.

4) Set up the base station to transmit signals according to the test configuration specified in 4.8 using the corresponding test configuration defined in 4.9.2 ETSI TS 138 141-2.

For a multi-carrier BS or CA, set up the base station to transmit signals on all carriers as specified in 4.7.2 and 4.8 of ETSI TS 138 141-2 or set up on the physical channel according to 4.9.2 of ETSI TS 138 141-2.

5) Set up the base station and test antenna in the same direction so that TRP measurements can be made, detailed in Appendix I of ETSI TS 138 141-2.

6) Measure the radiated power with any two orthogonal polarizations (symbols p1 and p2), and calculate the total transmitted power for a pair of beam directions according to EIRP, where EIRP = EIRPp1 + EIRPp2.

7) Repeat steps 6 -7 for all beam directions to be measured as detailed in Appendix I of ETSI TS 138 141-2.

8) Use EIRP results to calculate TRP.

For single-band and multi-band RIB tests, repeat the above steps for each relevant operating band, where the single-band test setups and measurement models apply to the carrier that does not work in another operating band.

3.3.2. OTA transmitter OFF power

3.3.2.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-2.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- B_RFBW and T_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-2;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-2.

3.3.3.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Adjust the base station transmission direction to the test system.

3) Set up the base station with the beam to be measured in the beam beak direction of the beam direction pair.

4) Place the test antenna in the same position as specified in 4.12 ETSI TS 138 141-2.

5) Configure the base station's peak beam according to the configuration declared by the manufacturer.

6) Set up the base station to transmit signal according to the test configuration defined in 4.8 using measurement models or set up the physical channel as specified in 4.9.2 ETSI TS 138 141-2.

7) For a base station declared to be capable of multi-band transmission and/and carrier aggregation, use the test configuration and set the power respectively according to 4.7.2 and 4.8 using the measurement models or set up physical channels defined in 4.9.2 ETSI TS 1138 141-2 on all carriers.

8) Measure the mean power spectral density at all antenna connectors in the same position that is the total power over two orthogonal polarizations over 70/N μs filtered by the square filter of a bandwidth equal to the base station RF bandwidth centered on the center frequency of the RF bandwidth. The center of 70/N μs window is taken from 35/N μs after a 10 μs transmitter ON period to 35/N μs before the next -10 μs transmitter ON period. N = SCC/15 where SCS is the sub-carrier spacing (kHz).

9) For a base station that supports contiguous carrier aggregation, the power spectral density test at the co-located test antenna connectors is the total power over the two orthogonal polarizations above 70/N μs filtered by the square filter of a bandwidth equal to the aggregated base station RF channel bandwidth BWChannel_CA centered on (Fedge_high+Fedge_low)/2. The center of 70/N μs window is taken from 35/N μs after a 10 μs transmitter ON period to 35/N μs before the next -10 μs transmitter ON period. N = SCC/15 where SCS is the minimum sub-carrier spacing supported by the base station in the aggregated base station RF channel bandwidth (kHz).

10) For a multi-band RIB, add the following step:

For single-band and multi-band RIB tests, repeat the above steps for the relevant operating band where the single-band test configurations and measurement models will be applied without any carrier activated in another operating band.

3.3.3. Adjacent channel leakage power ratio (ACLR)

3.3.3.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-2.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- B_RFBW and T_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-2;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-2.

3.3.3.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Adjust the base station transmission direction to the measurement system.

3) The characteristics of the meter shall include:

- Bandwidth of measuring filter: As specified in 6.7.3.5 of ETSI TS 138 141-2;

- Detection mode: Real voltage or real mean power.

4) Set up the base station to transmit signals according to the configuration of measurements detailed in 4.8, 4.9.2 ETSI TS 138 141-2.

For a multi-carrier BS or CA, set up the base station to transmit signals on all carriers using the measurement model and set the corresponding power as specified in 4.7.2 and 4.8 of the ETSI TS 138 141-2 or set up a physical channel according to 4.9.2 of ETSI TS 138 141-2.

5) Set up the base station and test antenna in the same direction so that TRP measurement can be performed, detailed in Appendix I of ETSI TS 138 141-2.

6) Measure the absolute power value of each assigned channel frequency and the adjacent frequency channel.

7) Repeat steps 5 and 6 for all directions to be measured.

8) Calculaye TRP_Estimate for the total absolute radiated power of the wanted and adjacent channels in step 7.

9) Calculate ACLR:

-                     ACLR is calculated by the absolute TRP of the assigned and adjacent channel frequencies.

-                     In FR1, the ACLRuncertainty is higher than that specified in 4.1.2 of ETSI TS 138 141-2.

10) Measure the adjacent channel leakage power ratio for frequency offsets on both sides of the channel frequency as specified in Table 9 for base stations type 1-O and Table 49 for base stations type 2-O. In the case of multiple carriers, only those frequencies offset below the lowest carrier frequency and above the highest carrier frequency as transmitted shall be measured.

11) For the OTA ACLR requirement to apply within the sub-block gap for non-contiguous spectrum operation or within the Inter RF Bandwidth gap for multi-band operation:

a) Measure the OTA ACLR within the sub-block gap or Inter RF Bandwidth gap, if feasible:

b) Measure the OTA ACLR within the sub-block gap or Inter RF Bandwidth gap, if feasible:

12) Repeat the test with channel setups according to NR-FR1-TM1.2 specified in 4.9.2 of TS 38.141-1 for base stations type 1-O.

Additionally, the following step applies to multi-band RIB base stations:

13) For base stations type 1-O, with single-band and multi-band RIB tests, repeat the above steps for each operating band, where single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.4. OTA operating band unwanted emissions

3.3.4.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: B, M and T, detailed in 4.9.1 ETSI TS 138 141-2.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- B_RFBW, M_RFBW and T_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-2;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-2.

3.3.4.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Adjust the base station transmission direction to the test system.

3) Characteristics of the meter:

- Bandwidth of measuring filter: Specified in 6.7.3.5 of ETSI TS 138 141-2;

- Detection mode: Real voltage or real mean power.

4) For a single carrier BS, set up the base station to transmit signals at the rated output power P_rated,c,TRP detailed in 4.8, 4.9.2 of ETSI TS 138 141-2.

For multi-carrier base stations or CA, set up the base station to transmit signals on all carriers using the measurement model and set the corresponding power according to 4.7.2, 4.8 of ETSI TS 138 141-2.

5) Set up the base station and test antenna in the same direction, so that TRP measurements can be made, detailed in Appendix I of ETSI TS 138 141-2

6) Shift the center frequency of the measuring filter in adjacent steps and measure the emissions in the assigned frequency band with the specified measurement bandwidth.

7) Repeat steps 5 and 6 for all directions to be measured according to Appendix I of ETSI TS 138 141-2.

8) Calculate the TRP_Estimat value using the measurement results in step 6.

9) For base stations type 1-O, with single-band and multi-band RIB tests, repeat the above steps for each operating band, where single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.5. OTA transmitter spurious emissions

3.3.5.1. Initial conditions

Test environment: Normal, Appendix A.

RF channels to be measured for single carrier:

For FR1:

- B: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to 12.75 GHz (or 5^th harmonic).

For FR2:

- B: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T: when measuring spurious emissions from (_{FDL_high} + Δf_OBUE) to the 2^nd harmonic (or 60 GHz).

Base station bandwidth positions to be measured for a multi-carrier single-band base station:

For FR1:

- B_RFBW: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE)

- T_RFBW: When measuring spurious emissions from (F_{DL_high} + f_OBUE) to 12.75 GHz (or 5^th harmonic)

For FR2:

- B_RFBW: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T_RFBW: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to the 2^nd harmonic (or 60 GHz).

Base station bandwidth positions to be measured for a multi-carrier multi-band connector:

For FR1:

- B_RFBW_T'_RFBW: when measuring spurious emissions from 30 MHz to (F_{DL_Blow_low} – Δf_OBUE);

- B'_RFBW_T_RFBW: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to 12.75 GHz (or 5^th harmonic);

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW when measuring spurious emissions from (F_{DL_Blow_High} + Δf_OBUE) to (F_{DL_Bhigh_Low} - Δf_OBUE).

3.3.5.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Adjust the base station transmission direction to the test system.

3) Use the measurement bandwidth as specified in Table 59.

4) The characteristics of the meter shall include:

- Detection mode: Real voltage or real mean power.

5) Set up the base station to transmit signals:

For a single-carrier RIB, set the RIB to transmit signals according to the configuration of tests as specified in 4.8, 4.9.2 of ETSI TS 138 141-2, NR-FR1-TM1.1 for BS type 1-O and NR-FR2-TM1.1 for BS type 2-O

For a multi-carrier RIB or CA, set the RIB to transmit signals as specified in 4.9.2 of ETSI TS 138 141-2 on all configured carriers.

6) Set up the base station and test antenna in the same direction, so that TRP measurements can be made, detailed in Appendix I of ETSI TS 138 141-2.

7) Measure spurious emissions at the assigned frequencies with the specified measurement bandwidth.

8) Repeat steps 6 and 7 for all directions to be measured according to Appendix I of ETSI TS 138 141-2.

9) Calculate the TRP at each specified frequency using the orientation measurements above.

Additionally, the following steps apply to multi-band RIBs:

10) For base stations type 1-O, with single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test setups and measurement models apply to the carrier that does not work in another operating band.

3.3.6. OTA transmitter intermodulation

3.3.6.1. Initial conditions

Test environment: Normal, see Appendix A.

RF channels to be measured for single carrier: M, detailed in 4.9.1 ETSI TS 138 141-2.

Base station bandwidth positions to be measured for multicarrier:

- M_RFBN: single carrier RIB;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band RIB.

For multi-band RIBs:

- B_RFBW_T'_RFBW: when measuring spurious emissions above the operating band;

- B'_RFBW_T_RFBW: when measuring spurious emissions below the operating band.

3.3.6.2. Measurement procedure

1) Select a co-located antenna (CLTA) as described in 4.12 and the parameters defined in table 4.12.2.2-1 ETSI TS 138 141-2.

2) Set the CLTA as described in 4.12 with the parameters defined in table 4.12.2.3-1 ETSI TS 138 141-2.

3) The test antennas shall be subject to single or dual polarization in the same frequency as the NR BS emission frequency.

4) The test antenna and the CLTA have the same emission frequency.

5) Connect the antenna to be measured and the CLTA to the meter according to Appendix E.15 ETSI TS 138 141-2.

6) In the OTA emission measurements at the antenna connector, both NR BS and CLTA rotate around the same axis.

7) The OTA emission measurement method to be performed is TRP in accordance with the procedure described in Appendix I of ETSI TS 138 141-2.

8) Characteristics of meter

- Detection mode: real voltage RMS.

9) For base stations type 1-O:

- Set NR BS to transmit signals at a maximum power according to the measurement configuration specified in 4.8 or set up physical channels defined in 4.9.2 of ETSI TS 138 141-2.

- For a multi-carrier NR BS or CA, set up the base station to transmit signals on all carriers using the measurement model and set the corresponding power as specified in 4.7.2 and 4.8. of ETSI TS 138 141-2 or set up a physical channel according to 4.9.2 of ETSI TS 138 141-2.

10) Generate interfering signals through CLTA, the power of CLTA is equivalent to P_rated,t,TRP

- The measurements are specified in 4.9.2 of ETSI TS 138 141-2, with center frequency offsets as specified in table 9.8.2-1 of TS. 38.104.

11) Adjust the interference level of CLTA according to table 9.8.2-1 of TS 38.104.

12) If an interfering signal is applied as specified in 4.7, the unwanted emission measurements shall comply with with 6.7.3 (OTA ACLR) and 6.7.4 (OTA OBUE) of ETSI TS 138 141-2 for all intermodulation products.

13) If an interfering signal is applied as specified in 4.7, the transmitter spurious emission measurements shall comply with 6.7.5 ETSI TS 138 141-2 (OTA spurious emissions), excluding OTA co-located spurious emissions.

14) The emissions shall not exceed the required levels specified in 6.8.5 ETSI TS 138 141-2, except for interfering signal frequencies.

15) Repeat the above measurements with the remaining interfering signal center frequencies under the conditions given in table 9.8.2-1 TS 38.104.

16) Repeat the measurements according to the steps above with the interfering signals specified in 4.7 for the OTA ACLR and OTA OBUE requirements and 6.7.5 (OTA spurious emissions), excluding OTA co-located spurious emissions.

Additionally, the following step will be performed for a multi-band RIB.

17) For RIB multi-band and single-band tests, repeat the above steps for each specific band.

- NOTE: The third order intermodulation components are (2F1 ± F2) and (2F2 ± F1), the fifth order intermodulation components are (3F1 ± 2F2), (3F2 ± 2F1), (4F1 ± F2), and (4F2 ± F1), where F1 corresponds to the wanted signal center frequency or the center frequency of each sub-block and F2 corresponds to the interfering signal center frequency.

- The width of the intermodulation products is calculated as follows:

(n*BWF1 + m* BWF2) for F1 ± mF2

(n* BWF2 + m* BWF1) for nF2 ± mF1

BWF1: Wanted signal bandwidth, BWF2: Interfering signal bandwidth.

3.3.7. OTA receiver sensitivity

3.3.7.1. Initial conditions

Test environment: Normal, detailed in Appendix A.

RF channels to be measured for single carrier: M.

Directions to be measured:

- Receiver reference direction (D.31);

- Direction of conformance testing (D.33).

3.3.7.2. Measurement procedure

1) Set the BS location as specified in Appendix E.2.1.

2) Align the BS to be measured in the same direction as the meter.

3) Set the declaration of the antenna direction to be measured.

4) Make sure the antenna polarization is calculated so that the full power from the antenna is received by the BS for testing.

5) Configure the beam direction for the transmitter in the declared reference beam direction.

6) Set up the base station to transmit the beam in the same operating range as the OSDD under test according to 4.7 and 4.8 of ETSI TS 138 141-2.

7) Generate a wanted signal to be transmitted according to 7.2.5 of ETSI TS 138 141-2.

8) Set the transmission power of the measured signal.

9) Measure the throughout according to Appendix A.1.

10) Repeat steps 3 to 9 for all OSDDs declared for the BS, and supported polarities.

For single-band and multi-band BSs, repeat the above steps for each relevant operating band, where the single-band test setups and measurement models apply to the carrier that does not work in another operating band.

3.3.8. OTA Adjacent Channel Selectivity (ACS)

3.3.8.1. Initial conditions

Test environment: Normal, detailed in Appendix A.

RF channels to be measured for single carrier:

- M: Detailed in 4.9.1 ETSI TS 138 141-2.

The base station RF bandwidth edge positions to be measured for multi-carrier:

- M_RFBW: single carrier, detailed in 4.9.1 ETSI TS 138 141-2;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band, detailed in 4.9.1 ETSI TS 138 141-2.

Directions to be measured:

- For BSs type 1-O: Receiver reference direction (D.31);

- For BSs type 2-O: OTA REFSENS receiver reference direction (D.54).

3.3.8.2. Measurement procedure

1) Set the BS location as specified in Appendix E.2.3.

2) Align the base station direction to be measured with the meter direction.

3) Align the BS with the antenna to be measured in the declared direction.

4) Align the base station so that the wanted signal and the interfering signal are properly polarized to the measured antenna.

5) Configure the transmitter beam peak direction according to the standard beam direction pair declared for the beam detector.

6) Set up the base station to transmit the same operating range as the OSDD or OTA REFSENS RoAoA to be measured according to 4.7 and 4.8 of ETSI TS 138 141-2.

7) Set the mean power of the signal to be measured as follows:

a)                 Set the signal generator to transmit the wanted signal as specified in Table 65 for base stations type 1-O and Table 67 for base stations type 2-O.

b)                Set up the signal generator to transmit the interfering signal at the adjacent channel frequency of the wanted signal defined in Table 66 for base stations type 1-O and Table 68 for base stations type 2-O.

8) Measure the throughout as specified in Appendix A.1.

For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.9. OTA in-band blocking

3.3.9.1. Initial conditions

RF channels to be measured for single carrier: M.

Base station RF bandwidth edge positions to be measured for multi-carrier:

- M_RFBW: single carrier;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band.

Directions to be measured:

- For base stations type 1-O: receiver reference direction (D.31) and OTA REFSENS conformance testing (D.55);

- For base stations type 2-O: OTA REFSENS receiver reference direction (D.54) and OTA REFSENS conformance testing (D.55).

3.3.9.2. Measurement procedure

1) Place the BS at the position according to the manufacturer's recommendations, Appendix E.2.3.

2) Align the base station direction to be measured with the meter direction.

3) Align the BS with the antenna to be measured in the declared direction.

4) Align the base station so that the wanted signal and the interfering signal are polarized with the measured antenna.

5) Configure the transmitter beam direction according to the declared reference beam direction.

6) Set up the base station to transmit the same operating range as the OSDD or OTA REFSENS RoAoA under test according to 4.7 and 4.8 of ETSI TS 138 141-2.

7) Set the mean power of the signal to be measured as follows:

For OTA blocking:

a) Set up the generation of the wanted signal to be transmitted as specified in table 72 for base stations type 1-O and table 76 for base stations type 2-O.

b) Set up the generation of the interfering signal with frequency offsets as specified in table 72 for base stations type 1-O and table 76 for base stations type 2-O. The interfering signal shall be scanned in 1 MHz hop from the smallest offset from the channel edge of the wanted signals.

For OTA narrowband blocking:

a) Generate wanted signals as specified in Table 70 for base stations type 1-O, Table 74 for base stations type 2-O.

b) Generate interfering signals with frequency offsets specified in Table 73 and Table 74 for base stations type 1-O and base stations type 2-O. Set and scan the RB interfering signal center frequency from the channel edge of the wanted signal according to Table 74.

8) Measure the throughout according to Appendix A.1 ETSI TS 138 141-2 for each supported polarity.

9) Repeat step 3 to step 8 for all specified directions to be measured.

For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.10. OTA out-of-band blocking

3.3.10.1. Initial conditions

Test environment: normal, see Appendix A.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-carrier:

- M_RFBW: Single-carrier RIB;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: Multi-band RIB.

B_RFBW_T'_RFBW: Out-of-band blocking test above the highest frequency, and B'_RFBW_T_RFBW: Out-of-band blocking test below the lowest frequency.

Directions to be measured:

- For base stations type 1-O: receiver reference direction (D.31);

- For base stations type 2-O: OTA REFSENS receiver reference direction (D.54).

3.3.10.2. Measurement procedure

For base stations type 1-O

1) Set the base station and antenna positions to be measured according to Appendix E.2.4.1.

2) Align the base station and antenna to be measured in the test direction.

3) Connect the measured antenna to the meter according to Appendix E.2.4.1.

4) The measured antenna shall be subject to single or dual polarization in the same frequency range as the base station and the blocking frequencies.

5) Set the OTA blocking interference characteristics in the measured antenna.

6) Set up the wanted signal to be transmitted according to 4.8 of ETSI TS 138 141-2, using the reference measurement channel for the RIB, according to Appendix A.1.

7) Set the beam direction for the transmitter blocks related to the RIB, as specified in 4.8 of ETSI TS 138 141-2. The transmitter can be turned OFF for out-of-band blocking measurement when the frequency of the interceptor such as second-order and third-order intermodulation does not fall within the wanted signal bandwidth.

8) Generate the interfering signal as specified in table 78.

9) The interfering signal shall be scanned in 1MHz hop as specified in table 7.6.5.1.1 of ETSI TS 138 141-2.

10) Measure the throughout as specified in 7.6.5 of ETSI TS 138 141-2.

11) Repeat steps 1 to 10 for all supported antenna polarities.

12) For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

Procedures for BS type 1-O co-location blocking

1) Set NR BS and CLTA as specified in 4.12.12.3 of ETSI TS 138 141-2.

2) CLTA antenna in the same co-location blocking frequency.

3) Align the NR BS and antenna to be measured in the test direction.

4) Connect the measured antenna and the CLTA to the meter, as specified in Appendix E.2.4.2.

5) Set the NR BS to receive the wanted signal in all supported polarities.

6) Set the CLTA power on each supported polarity.

7) Set up the wanted signal to be transmitted according to 4.8 of ETSI TS 138 141-2, using the reference measurement channel for the RIB, according to Appendix A.1.

8) Set the beam direction for the transmitter blocks related to the RIB, as specified in 4.8 of ETSI TS 138 141-2. The transmitter can be turned OFF for out-of-band blocking measurement when the frequency of the interceptor such as second-order and third-order intermodulation does not fall within the wanted signal bandwidth.

9) Generate the interfering signal as specified in Table 75.

10) The CW interfering signal shall be scanned in 1MHz hop as specified in table 7.6.5.1.1 of ETSI TS 138 141-2.

11) Measure the throughput.

12) Repeat steps 1 to 11 for all supported antenna polarities.

13) For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

For base stations type 2-O

1) Set the base station and antenna positions to be measured according to Appendix E.2.4.1 of ETSI TS 138 141-2.

2) Align the base station and antenna to be measured in the test direction.

3) Connect the measured antenna to the meter according to Appendix E.2.4.1 of ETSI TS 138 141-2.

4) The measured antenna shall be subject to single or dual polarization, in the same base station frequency range and blocking frequencies.

5) Set the OTA blocking characteristics of the measured antenna.

6) Set the wanted signal to be transmitted according to 4.8 of ETSI TS 138 141-2, using the reference measurement channel for the RIB, according to Appendix A.1.

7) Set the beam direction for the transmitter blocks related to the RIB, as specified in 4.8 of ETSI TS 138 141-2. The transmitter can be turned OFF for out-of-band blocking measurement when the frequency of the interceptor such as second and third order intermodulation does not fall within the wanted signal bandwidth.

8) Generate the interfering signal as specified in Table 75.

9) The interfering signal shall be scanned as defined in Table 76 with hops (MHz) specified in Table 97.

10) Measure the throughput.

Table 97 - Interfering signal hops

11) Repeat steps 1 to 10 for all supported antenna polarities.

3.3.11. OTA receiver spurious emissions

3.3.11.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier:

For FR1:

- B: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to 12.75 GHz (or 5^th harmonic).

For FR2:

- B: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to the 2^nd harmonic (or 60 GHz).

Base station bandwidth positions to be measured for a single-band base station:

For FR1:

- B_RFBW: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T_RFBW: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to 12.75 GHz (or 5^th harmonic).

For FR2:

- B_RFBW: when measuring spurious emissions from 30 MHz to (F_DLlow - Δf_OBUE);

- T_RFBW: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to the 2^nd harmonic (or 60 GHz).

Base station bandwidth positions to be measured for a multi-carrier base station:

For FR1:

- B_RFBW_T'_RFBW: when measuring spurious emissions from 30 MHz to (F_{DL_Blow_low} – Δf_OBUE);

- B'_RFBW_T_RFBW: when measuring spurious emissions from (F_{DL_high} + Δf_OBUE) to 12.75 GHz (or 5^th harmonic);

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: when measuring spurious emissions from (F_{DL_Blow_High} + Δf_OBUE) to (F_{DL_Bhigh_Low} - Δf_OBUE).

3.3.11.2. Measurement procedure

1) Set up the base station in accordance with the above requirements.

2) Declare the coordinates of the base station with the test system.

3) Use the measured bandwidth in the tests as specified in 7.7.5 of ETSI TS 138 141-2.

4) Characteristics of meter:

- Detection mode: Real voltage or real mean power.

5) Set the TDD BS base station only in the receipt mode.

6) Set up the base station in the same direction as the antenna to be measured.

7) Measure emissions at the assigned frequencies with a specified measurement bandwidth.

8) Repeat steps 6 to 9 for all measurement directions, make calculations through TRP.

9) Calculate the TRP at each specified frequency by orientation measurements.

10) For BS type 1-O single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.12. OTA receiver intermodulation

3.3.12.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Base station bandwidth positions to be measured for multi-carrier base stations or CA:

- M_RFBW: single band;

- B_RFBW_T'_RFBW and B'_RFBW_T_RFBW: multi-band;

B_RFBW_T'_RFBW: when measuring spurious emissions above the operating band;

B'_RFBW_T_RFBW: when measuring spurious emissions below the operating band.

Directions to be measured:

- OTA REFSENS: Receiver reference direction (D.54);

- Additionally, for base stations type 1-O, the receiver reference direction is as specified in (D.31).

3.3.12.2. Measurement procedure

1) Set the base station location according to Appendix E.2.6.

2) Align the base station transmission direction to the test system.

3) Align the base station and antenna to be measured in the test direction.

4) Align the base station so that the wanted signal and interfering signal are polarized with the measured antenna.

5) Configure the base station beam direction according to the declared reference beam direction.

6) Set up the base station to transmit the beams of the same operating range OTA REFSENS RoAoA or OSDD

7) Set the power of the measured signal:

a) Generate and transmit a wanted signal as specified in Table 81 or Table 83 (for narrowband intermodulation) for base stations type 1-O, or Table 85 for base stations type 2-O.

b) Generate and transmit an interfering signal at the same frequency as the wanted signal to be transmitted, as specified in Table 81 or Table 82 (for narrowband intermodulation) for base stations type 1-O or Table 85 for base stations type 2-O.

8) Set the interfering signal to be transmitted at the frequency according to Table 82 or Table 84 for BSs type 1-O or Table 86 for BSs type 2-O.

9) Measure the throughput according to Appendix A.1 for each multi-channel or C/A supported antenna polarity.

10) Repeat the above steps for all specified directions to be measured.

11) For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.3.13. OTA channel selectivity

3.3.13.1. Initial conditions

Test environment: Normal.

RF channels to be measured for single carrier: M.

Directions to be measured:

- For base stations type 1-O: Receiver reference direction (D.31);

- For base stations type 2-O: OTA REFSENS receiver reference direction (D.54).

3.4.13.2. Measurement procedure

1) Set the base station location according to Appendix E.2.7.

2) Align the base station transmission direction to the test system.

3) Set up base station and antenna to be measured in the test direction.

4) Align the BS so that the wanted signal and interfering signal are polarized with the measured antenna.

5) Configure the beam direction to be transmitted according to the declared reference beam direction pair.

6) Set up the base station to transmit the beams of the same OTA REFSENS RoAoA or OSDD operating band for each supported NR channel.

7) Set the power of the test signal to be measured:

a) Generate and transmit wanted signals:

- For base stations type 1-O: As specified in Tables 87 to Table 89, for wide area, medium range, and local area BSs;

- For base stations type 2-O: As specified in Table 90.

b) Generate and transmit interfering signals:

- For base stations type 1-O:As specified in Tables 87 to Table 89, for wide area, medium range, and local area BSs;

- For base stations type 2-O: As specified in Table 90.

8) Measure the throughput on each antenna polarity.

9) Repeat the measurement for the wanted signal and interfering signal symmetric to Fc.

10) Repeat for all specified measurement directions and supported polarities.

Additionally, for multi-band RIBs, the following step will be performed.

11) For single-band and multi-band RIB tests, repeat the above steps for each operating band, where the single-band test settings and measurement models apply to the carrier that does not work in another operating band.

3.4. Methods of measuring performance indicators

3.4.1. Peak spectral efficiency

1) Configure the base station antenna and terminal for each test environment condition according to tables 101 to 103. Radio resources will have to be used up for either uplink or downlink when the uplink or downlink peak spectral efficiency is measured respectively.

Table 101 - Calculation configurations for indoor base stations

Table 102 - Calculation configurations for urban base stations

Table 103 - Calculation configurations for rural base stations

NOTE: The 700 MHz carrier frequency corresponds to the frequency range of 450 MHz – 960 MHz; 4 GHz corresponds to the frequency range of 3 GHz - 6 GHz; 30 GHz corresponds to the frequency range of 24.25 GHz – 52.6 GHz; 70 GHz corresponds to the frequency range of 66 GHz - 86 GHz.

2) Set up the UE to receive packets transmitted from the host.

3) Calculate the peak spectral efficiency.

3.4.2. Coherence bandwidth

The coherence bandwidth is the maximum combined bandwidth of the system. Refer to 4.13 of ITU-R M2410.

3.4.3. Modulation types

Based on documents published by equipment manufacturers.

3.4.4. Temperature, humidity

Based on documents published by equipment manufacturers.

4. REGULATIONS ON MANAGEMENT

The 5G base station within the scope of regulation specified in Article 1.1 shall comply with the technical regulations in this Regulation.

5. RESPONSIBILITIES OF ORGANIZATIONS AND INDIVIDUALS

Relevant organizations and individuals shall implement regulations on certification and conformity announcement of 5G base station within the scope of this Regulation and be subject to inspection by the State authorities in accordance with the applicable regulations.

6. IMPLEMENTATION

6.1. The Authority of Telecommunications, Authority of Radio Frequency Management, and the Departments of Information and Communications shall guide the implementation and management of radio equipment in accordance with this Regulation.

6.2. Where the provisions of this Regulation are amended, supplemented or replaced, the provisions of the new document shall apply.

6.3. In the process of implementation, if any problems arise, relevant organizations and individuals shall notify the Ministry of Information and Communications (Department of Science and Technology) in writing for guidance and resolution./.

 

Appendix A
(Reference)
Environmental conditions

It defines the environmental conditions for each BS test. The following environmental conditions may be declared:

-                     Atmospheric pressure: lowest and highest;

-                     Temperature: lowest and highest;

-                     Relative humidity: lowest and highest;

-                     Power supply: upper and lower voltage limit.

When operating outside the boundary limits of declared environmental conditions, this equipment should not affect the efficient use of the spectrum and cause harmful interference.

A.1. Normal test environment

When a normal test environment is specified for a test, the test shall be performed within the lowest and highest limits of the conditions specified in Table A.1.

Table A.1 - Limitation of conditions for test environment

The above ranges of atmospheric pressure, temperature and humidity correspond to the maximum variation expected in the uncontrolled environment of a laboratory. If it is not possible to maintain these parameters within the specified limits, the actual values ​​shall be recorded in the test report.

A.2. Critical test environment

The manufacturer shall declare one of the following cases:

1) The category of equipment is representative of the equipment under test, as defined in IEC 60721-3-3.

2) The category of equipment is representative of the equipment under test, as defined in IEC 60721-3-4.

3) For equipment that does not comply with the categories as mentioned, the relevant categories defined in IEC 60721 on temperature, humidity and vibration shall be declared.

NOTE: Performance degradation caused by environmental conditions outside the standard operating conditions is not tested in this Regulation. These environmental conditions can be specified and tested individually.

A.2.1. Critical temperature

When a critical temperature test environment is specified for a test, the test shall be performed with the standard highest and lowest operating temperatures as determined by the manufacturer's declaration for the equipment under test.

Lowest temperature:

Tests shall be performed for the equipment and the environmental test methods including the required environmental phenomena that affect the equipment in accordance with the measurement procedure of IEC 60 068-2-1.

Maximum temperature:

Tests shall be performed for the equipment and the environmental test methods including the required environmental phenomena that affect the equipment in accordance with the measurement procedure of IEC 60 068-2-2.

NOTE: It is recommended that the equipment be fully functional before it is put into its lower operating temperature.

A.3. Vibration

When vibration conditions are specified for a test, the test shall be performed where the equipment is vibrated in a sequence defined by the manufacturer's declaration for the equipment under test. Tests shall use equipment and environmental test methods including the required environmental phenomena that affect the equipment in accordance with the measurement procedure of IEC 60 068-2-6.

A.4. Supply

When critical power supply conditions are specified for a test, the test shall be performed with the upper and lower standard limits of the operating voltage as determined by the manufacturer's declaration for the equipment under test.

Upper voltage limit:

The equipment shall be supplied with a voltage equal to the upper limit declared by the equipment manufacturer (when measured at the inputs of the equipment). Tests shall be performed with the lowest and highest steady temperature limits as declared by the manufacturer for the equipment in accordance with the methods specified in IEC 60 0682-1: Test Ab/Ad and IEC 60 068-2-2: Bb/Bd test: Dry firing

Lower voltage limit:

The equipment shall be supplied with a voltage equal to the lower limit declared by the equipment manufacturer (when measured at the inputs of the equipment). Tests shall be performed with the lowest and highest steady temperature limits as declared by the manufacturer for the equipment in accordance with the methods specified in IEC 60 0682-1: Test Ab/ Ad and IEC 60 068-2-2: Bb/Bd test: Dry firing.

A.5. Measurements for test environments

§     Pressure: ±5 kPa.

§     Temperature: ±2^o.

§     Relative humidity: ±5%.

§     DC voltage: ±1.0%.

§     AC voltage: ±1.5 %.

§     Vibration: ±10%.

§     Vibration frequency: 0.1 Hz

The above values ​​shall apply, unless the test environment is controlled and the specifications for control of the test environment specify uncertainties for the parameters.

 

Appendix B
(Reference)
Measurement diagram

B.1. Base Station type 1-C - Transmission direction

B.1.1. Base station output power, unwanted emissions

Figure B.1 - Set up the test system of base station output power, unwanted emissions

B.1.2. Transmitter intermodulation

Figure B.2- Setup of transmitter intermodulation test system

B.2. Base Station Type 1-C – Reception direction

B.2.1. Receiver sensitivity

Figure B.3 - Set up the receiver sensitivity test system

B.2.2 Channel selectivity

Figure B.4 - Set up the channel selectivity test system

B.2.3. Adjacent channel selectivity

Figure B.5 - Set up the adjacent channel selectivity test system

B.2.4. Blocking characteristics

Figure B.6 - Set up the test system for blocking characteristics

B.2.5. Receiver spurious emissions

Figure B.7 - Set up the receiver spurious emission test system

B.2.6. Intermodulation characteristics

Figure B.8 - Set up the test system for intermodulation characteristics

B.3. Base station type 1-H: Transmission direction

B.3.1. Base station output power, unwanted emissions

Figure B.9 - Set up the test system of base station output power, unwanted emissions

B.3.2. Transmitter intermodulation

Figure B.10 - Set up the transmitter intermodulation test system

B.3.2. Transmitter spurious emissions

Figure B.11 - Set up the transmitter spurious emission test system in case of a single TAB connector

Figure B.11 - Set up the transmitter spurious emission test system in case of multiple TAB connectors

B.4. Base Station 1-C: Reception direction

B.4.1. Receiver sensitivity

Figure B.12 - Set up the receiver sensitivity test system

B.4.2. Adjacent Channel Selectivity (ACS)

Figure B.13 - Set up the narrowband blocking and adjacent channel selectivity test system

B.4.3. Receiver spurious emissions

Figure B.14 - Set up the receiver spurious emission test system in case of a single TAB connector

Figure B.15 - Set up the receiver spurious emission test system in case of multiple TAB connectors

B.4.4. Receiver intermodulation

Figure B.16 - Set up the receiver intermodulation test system

B.5. Base Stations type 1-O, 2-O: Transmission Direction

B.5.1. OTA base station output power, OTA ACLR, OTA operating band unwanted emissions

Figure B.17 - Set up the test system of OTA base station output power, OTA ACLR, OTA operating band unwanted emissions

B.5.2. OTA transmitter spurious emissions

Figure B.18 - Set up the OTA transmitter spurious emission test system

B.5.3. OTA transmitter intermodulation

Figure B.19 - Set up the OTA transmitter intermodulation test system

B.6. Base Stations type 1-O, 2-O: Reception direction

B.6.1. OTA receiver sensitivity

Figure B.20 - Set up the OTA receiver sensitivity test system

B.6.2. OTA adjacent channel selectivity

Figure B.21 - Set up the OTA adjacent channel selectivity test system

B.6.2. OTA receiver spurious emissions

Figure B.22 - Set up the OTA receiver spurious emission test system

B.6.3. OTA receiver intermodulation

Figure B.23 - Set up the OTA receiver intermodulation test system

B.6.4. OTA channel selectivity

Figure B.24 - Set up the OTA channel selectivity test system

 

Appendix C

(Regulations)

HS code of 5G base station

 

 

Appendix D
(Reference)
Technical specifications for 5G base stations operating in the frequency range of 3 400 MHz - 4 200 MHz

In addition to the requirements specified in Article 2 of this Regulation, 5G base stations operating in the frequency range of 3400 MHz - 4200 MHz include the following requirements:

D.1. Adjacent Channel Leakage Ratio

Table D1 - Base Station ACLR Absolute Value

D.2. Operating band unwanted emissions

Table D.2 - Unwanted emissions in the frequency range of 3400 MHz – 4200 MHz

D.3. Transmitter spurious emissions

Table D.3 Transmitter spurious emission limits in the frequency range of 3 400 MHz – 4 200 MHz.

Table D.3 - Transmitter spurious emission limits in the frequency range of 3400 MHz – 4200 MHz

D.4. Protection of earth station receivers

Table D.4 Spurious emission limit of base stations operating in the frequency range of 3400 MHz – 4200 MHz to protect earth station receivers:

Table D.4 - Spurious emission limits to protect earth station receivers

 

 

References

[1] Decision No. 1529/QD-BTTTT dated September 08, 2020 of Minister of Information and Communications.

[2] ETSI TS 138 104 (V15.12.0) (01-2021)”: “5G; NR; Base Station (BS) radio transmission and reception (3GPP TS 38.104 version 15.12.0 Release 15)”

[3] ETSI TS 138 141-1 (V16.6.0) (01-2021): “5G; NR; Base Station (BS) conformance testing Part 1: Conducted conformance testing (3GPP TS 38.141-1 version 16.6.0 Release 16)”.

[4] ETSI TS 138 141-2 (V16.6.0) (01-2021): “5G; NR; Base Station (BS) conformance testing Part 2: Radiated conformance testing (3GPP TS 38.141-2 version 16.6.0 Release 16)”.

[5] ETSI TS 138 113 V15.3.0 (10-2018): “5G, NR; Base Station (BS) ElectroMagnetic Compatibility (EMC).

[6] ITU-R M.2410-0 (11-2017): “Minimum requirements related to technical performance for IMT-2020 radio interface(s)”.

[7] ITU-R M.2412-0 (11-2017): “Guidelines for evaluation of radio interface technologies for IMT-2020”.

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