7 Receiver characteristics

37.1413GPPMulti-Standard Radio (MSR) Base Station (BS) conformance testingNR, E-UTRA, UTRA and GSM/EDGERelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

7.1 General

General test conditions for receiver tests are given in clause 4, including interpretation of measurement results and configurations for testing. BS configurations for the tests are defined in clause 4.10.

Unless otherwise stated the requirements in clause 7 apply during the Base Station receive period.

Unless otherwise stated, a BS declared to be capable of E-UTRA with NB-IoT in-band or guard band operations (or any combination with GSM and/or UTRA and/or NR) is only required to pass the receiver tests for E-UTRA with NB-IoT in-band or guard band (or any combination with GSM and/or UTRA and/or NR); it is not required to perform the receiver tests again for E-UTRA only (or any combination with GSM and/or UTRA and/or NR).

For a BS declared to be capable of E-UTRA (and where applicable NR) with NB-IoT in-band operations, it is not required to perform the receiver test for subPRB allocation.

Unless otherwise stated, a BS declared to be capable of NB-IoT operation in NR in-band (or any combination with GSM and/or UTRA and/or E-UTRA) is only required to pass the receiver tests for NB-IoT operation in NR in-band (or any combination with GSM and/or UTRA and/or E-UTRA); it is not required to perform the receiver tests again for NR only (or any combination with GSM and/or UTRA and/or E-UTRA).

For a BS declared to be capable of NB-IoT operation in NR in-band (and where applicable E-UTRA) , it is not required to perform the receiver test for subPRB allocation.

7.2 Reference sensitivity level

7.2.1 Definition and applicability

The reference sensitivity power level PREFSENS is the minimum mean power received at the antenna connector at which a reference performance requirement shall be met for a specified reference measurement channel.

Additional details are in TS 38.141-1 [26] clause 7.2, TS 36.141 [9] clause 7.2, TS 25.141 [10] clause 7.2, TS 25.142 [12] clause 7.2, and TS 51.021 [11] clauses 7.3 and 7.4.

7.2.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clauses 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5 and 7.2.6.

7.2.3 Test purpose

To verify that at the BS Reference sensitivity level the performance requirements shall be met for a specified reference measurement channel.

7.2.4 Method of test

For this requirement Tables 5.1-1, 5.1-1a, 5.1-1b and 5.2-1 refer to single-RAT specifications; see clause 5, for a BS declared to support CS1 to CS6, CS8 to CS14, CS16 to CS17 or CS19. The following shall apply, for a BS declared to support CS1 to CS6, CS16 to CS17 or CS19:

– For references to TS 51.021 [11], the method of test is specified in TS 51.021 [11], clauses 7.3 and 7.4.

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 7.2.4.

– For references to TS 25.142 [12], the method of test is specified in TS 25.142 [12], clause 7.2.4.

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 7.2.4.

– For references to TS 38.141-1 [26], the method of test is specified in TS 38.141-1 [26], clause 7.2.4.

If a BS is declared to support CS7, CS15 or CS18, the following shall apply:

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 7.2.4.

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 7.2.4.

– For testing GSM/EDGE reference sensitivity, steps in clause 7.2.4.1 and 7.2.4.2 shall apply.

7.2.4.1 Initial conditions for GSM/EDGE reference sensitivity level for CS7, CS15 or CS18

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1,

1) Set up the equipment as shown in Annex I.2.1 TS 36.141[9].

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For GSM see clauses 7.3 and 7.4 in TS 51.021 [11] and Annex P in TS 45.005 [6] for reference channels to test.

7.2.4.2 Procedure for GSM/EDGE reference sensitivity level for CS7, CS15 or CS18

1) Set the BS according to the applicable test configuration(s) (see clause 5).

2) Adjust the GSM/EDGE signal generator to the wanted signal levels as specified in TS 51.021, applicable parts of clauses 7.3 and 7.4.

3) Measure the performance of the GSM/EDGE wanted signal at the BS receiver, as defined in TS 51.021, applicable parts of clauses 7.3 and 7.4.

In addition, for a multi-band capable BS, the following step shall apply:

– For multi-band capable BS and single band tests, repeat the tests per involved band where single carrier test models shall apply with no carrier activated in the other band. For multi-band capable BS with separate antenna connector, the antenna connector not being under test shall be terminated.

7.2.5 Test requirements

For E-UTRA the test requirement is in TS 36.141 [9] clause 7.2.5.

For UTRA-FDD the test requirement is in TS 25.141 [10] clause 7.2.5.

For UTRA-TDD the test requirement is in TS 25.142 [12] clause 7.2.5.

For GSM-EDGE the test requirement is in TS 51.021 [11] clauses 7.3 and 7.4.

For NB-IoT standalone or operation in E-UTRA in-band/guard band the test requirement is in TS 36.141 [9] clause 7.2.5.

For NB-IoT operation in NR in-band, the test requirement is in TS 38.141-1 [26] clause 7.2.5.

For NR the test requirement is in TS 38.141-1 [26] clause 7.2.5.

7.3 Dynamic range

7.3.1 Definition and applicability

The dynamic range is a measure of the capability of the receiver to receive a wanted signal in the presence of an interfering signal inside the received channel bandwidth or the capability of receiving high level of the wanted signal.

7.3.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clauses 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5 and 7.3.6.

7.3.3 Test purpose

To verify that at the BS receiver dynamic range, the receiver performance shall fulfil the specified limit.

7.3.4 Method of test

– For references to TS 51.021 [11], the method of test is specified in TS 51.021 [11], clause 7.1.

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 7.3.4.

– For references to TS 25.142 [12], the method of test is specified in TS 25.142 [12], clause 7.3.4.

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 7.3.4.

– For references to TS 38.141-1 [26], the method of test is specified in TS 38.141-1 [26], clause 7.3.4.

If a BS is declared to support CS7, CS15 or CS18, the following shall apply:

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 7.3.4.

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 7.3.4.

– For testing GSM/EDGE dynamic range, steps in clause 7.3.4.1 and 7.3.4.2 shall apply.

7.3.4.1 Initial conditions for GSM/EDGE dynamic range for CS7, CS15 or CS18

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1,

1) Set up the equipment as shown in Annex I.2.1 TS 36.141[9].

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For GSM see clause 7.1 in TS 51.021 [11] for reference channels to test.

7.3.4.2 Procedure for GSM/EDGE dynamic range for CS7, CS15 or CS18

1) Set the BS according to the applicable test configuration(s) (see clause 5).

2) Adjust the GSM/EDGE signal generator to the wanted signal levels as specified in TS 51.021, applicable parts of clauses 7.1

3) Measure the performance of the GSM/EDGE wanted signal at the BS receiver, as defined in TS 51.021, applicable parts of clause 7.1.

In addition, for a multi-band capable BS, the following step shall apply:

– For multi-band capable BS and single band tests, repeat the tests per involved band with no carrier activated in the other band. For multi-band capable BS with separate antenna connector, the antenna connector not being under test shall be terminated.

7.3.5 Test requirements

For E-UTRA the test requirement is in TS 36.141 [9] clause 7.3.5.

For UTRA-FDD the test requirement is in TS 25.141 [10] clause 7.3.5.

For UTRA-TDD the test requirement is in TS 25.142 [12] clause 7.3.5.

For GSM-EDGE the test requirement is in TS 51.021 [11] clause 7.1.

For NB-IoT standalone or operation in E-UTRA in-band/guard band the test requirement is in TS 36.141 [9] clause 7.3.5.

For NB-IoT operation in NR in-band the test requirement is in TS 38.141-1 [26] clause 7.3.5.

For NR the test requirement is in TS 38.141-1 [26] clause 7.3.5.

7.4 In-band selectivity and blocking

7.4.1 Definition and applicability

The in-band selectivity and blocking characteristics are measures of the receiver ability to receive a wanted signal at its assigned channel in the presence of an unwanted interferer inside the operating band and are defined by a wideband and a narrowband blocking requirement.

The in-band blocking requirement applies from F_{UL_low} – Δf_OOB to F_{UL_high} + Δf_OOB, excluding the downlink frequency range of the FDD operating band. The values of Δf_OOB are defined in table 7.4.1-1. For a BS with multi-RAT operation where the individual RATs are in different RAT specific bands that partially or fully overlap; Δf_OOB is according to the combined frequency range occupied by the overlapping bands.

Table 7.4.1-1: Maximum Δf_OOB offset outside the uplink operating band

Operating band characteristics	Δf_OOB [MHz]
200 MHz ≥ F_{UL_high} – F_{UL_low}	20
200 MHz < F_{UL_high} – F_{UL_low} ≤ 900 MHz	60

Unless otherwise stated, a BS declared to be capable of E-UTRA with NB-IoT in-band and guard band operations (or any combination with GSM and/or UTRA) is only required to pass the in-band selectivity and blocking receiver tests for E-UTRA with guard band operation (or any combination with GSM and/or UTRA). It’s not required to perform the in-band selectivity and blocking receiver tests again for E-UTRA with in-band operation (or any combination with GSM and/or UTRA).

7.4.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clauses 7.4.1, 7.4.2, 7.4.3, 7.4.4, and 7.4.5.

7.4.3 Test purpose

The test stresses the ability of the BS receiver to withstand high-level interference from unwanted signals at specified frequency offsets without undue degradation of its sensitivity.

7.4.4 Method of test

7.4.4.1 Initial conditions

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1, B_RFBW_T’_RFBW and B’_RFBW_T_RFBWin multi-band operation, see clause 4.9.1.

1) Set up the equipment as shown in Annex D.2.1.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For E-UTRA see Annex A.1 in TS 36.141 [9].

– For UTRA FDD see Annex A.2 in TS 25.141 [10].

– For UTRA TDD see Annex A.2.1 in TS 25.142 [12].

– For GSM see clause 7.6.2 in TS 51.021 [11] and Annex P in TS 45.005 [6] for reference channels to test.

– For NB-IoT see Annex A.14 in TS 36.141 [9].

– For NR see Annex A.1 in TS 38.141-1 [26].

7.4.4.2 Procedure for general blocking

1) Set the BS to transmit with the carrier set-up and power allocation according to the applicable test configuration(s) (see clause 5).

2) Adjust the signal generators to the type of interfering signal, levels and the frequency offsets as specified in Table 7.4.5.1-1.

3) The interfering signal shall be swept with a step size of 1 MHz starting from the minimum offset to the channel edges of the wanted signals as specified in Table 7.4.5.1-1

4) Measure the performance of the wanted signal at the BS receiver, as defined in clause 7.4.5, for the relevant carriers specified by the test configuration in clause 4.8.

In addition, for a multi-band capable BS with separate antenna connectors, the following steps shall apply:

5) For single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

6) For multi-band tests, the interfering signal shall first be applied on the same port as the wanted signal. The test shall be repeated with the interfering signal applied on the other port (if any) mapped to the same receiver as wanted signal. Any antenna connector with no signal applied shall be terminated.

7) Repeat step 6 with the wanted signal for the other band(s) applied on the respective port(s).

7.4.4.3 Procedure for narrowband blocking

1) Set the BS to transmit with the carrier set-up and power allocation according to the applicable test configuration(s) (see clause 5).

2) Adjust the signal generators to the type of interfering signal, levels and the frequency offsets as specified in Tables 7.4.5.2-1 and 7.4.5.2-2.

3) Set-up and sweep the interfering RB centre frequency offset to the channel edge of the wanted signal according to Tables 7.4.5.2-1 and 7.4.5.2-2.

4) Measure the performance of the wanted signal at the BS receiver, as defined in clause 7.4.5, for the relevant carriers specified by the test configuration in clause 4.8.

In addition, for a multi-band capable BS with separate antenna connectors, the following steps shall apply:

5) For single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

6) For multi-band tests, the interfering signal shall first be applied on the same port as the wanted signal. The test shall be repeated with the interfering signal applied on the other port (if any) mapped to the same receiver as the wanted signal. Any antenna connector with no signal applied shall be terminated.

7) Repeat step 6 with the wanted signal for the other band(s) applied on the respective port(s).

7.4.4.4 Procedure for additional narrowband blocking for GSM/EDGE

For a BS declared to support CS1 to CS6 or CS9 to CS13, the GSM/EDGE in-band blocking method of test is stated in TS 51.021 [11], applicable parts of clause 7.6.

The conditions specified in TS 45.005 [6], Annex P.2.1 apply for GSM/EDGE in-band narrowband blocking.

If a BS is declared to support CS7 or CS15, the steps in clause 7.4.4.4.1 and 7.4.4.4.2 for testing additional narrowband blocking for GSM/EDGE shall apply:

7.4.4.4.1 Initial conditions for additional narrowband blocking for GSM/EDGE for CS7 and CS15

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1,

1) Set up the equipment as shown in Annex D.2.1.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For GSM see clause 7.6.2 in TS 51.021 [11] and Annex P.2.1 in TS 45.005 [6] for reference channels to test.

7.4.4.4.2 Procedure for additional narrowband blocking for GSM/EDGE for CS7 and CS15

1) Set the BS according to the applicable test configuration(s) (see clause 5).

2) Adjust the GSM/EDGE signal generator to the wanted signal levels as specified in TS 51.021, applicable parts of clauses 7.6.

3) Set-up the interfering signal as specified in TS 51.021, applicable parts of clauses 7.6.

4) Measure the performance of the GSM/EDGE wanted signal at the BS receiver, as defined in TS 51.021, applicable parts of clause 7.6.

In addition, for multi-band capable BS and single band tests, repeat the procedure above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band. Any antenna connector with no signal applied shall be terminated.

7.4.4.5 Procedure for GSM/EDGE AM suppression

For a BS declared to support CS1 to CS6, the GSM/EDGE in-band blocking method of test is stated in TS 51.021 [11], applicable parts of clause 7.8.

The conditions specified in TS 45.005 [6], Annex P.2.3 apply for GSM/EDGE AM suppression.

If a BS is declared to support CS7, the steps in clause 7.4.4.5.1 and 7.4.4.5.2 for testing additional narrowband blocking for GSM/EDGE shall apply:

7.4.4.5.1 Initial conditions for GSM/EDGE AM suppression for CS7 and CS15

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1.

1) Set up the equipment as shown in Annex D.2.1.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For GSM see clause 7.8 in TS 51.021 [11] and Annex P.2.3 in TS 45.005 [6] for reference channels to test.

7.4.4.5.2 Procedure for GSM/EDGE AM suppression for CS7 and CS15

1) Set the BS according to the applicable test configuration(s) (see clause 5).

2) Adjust the GSM/EDGE signal generator to the wanted signal levels as specified in TS 51.021, applicable parts of clauses 7.8.

3) Set-up the interfering signal as specified in TS 51.021, applicable parts of clauses 7.8.

4) Measure the performance of the GSM/EDGE wanted signal at the BS receiver, as defined in TS 51.021, applicable parts of clause 7.8.

7.4.4.6 Procedure for additional BC3 blocking requirement

1) Adjust the signal generators to the type of interfering signal, levels and the frequency offsets as specified in Table 7.4.5.5-1

2) Measure the performance of the wanted signal at the BS receiver, as defined in clause 7.4.5, for the relevant carriers specified by the test configuration in clause 4.8.

7.4.5 Test requirements

7.4.5.1 General blocking test requirement

For the general blocking requirement, the interfering signal shall be a UTRA FDD signal as specified in Annex A.1 for a UTRA, E-UTRA, NB-IOT, GSM/EDGE or NR (≤ 20 MHz) wanted signal. The interfering signal shall be a 20 MHz E-UTRA signal for NR wanted signal channel bandwidth greater than 20MHz.

The requirement is applicable outside the Base Station RF Bandwidth or Maximum Radio Bandwidth. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges or Maximum Radio Bandwidth edges.

For BS operating in non-contiguous spectrum, the requirement applies in addition inside any sub-block gap, in case the sub-block gap size is at least 15MHz. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For BS capable of multi-band operation, the requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least 15MHz. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted and interfering signal coupled to the Base Station antenna input, using the parameters in Table 7.4.5.1-1, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured GSM/EDGE carrier, the conditions are specified in TS 45.005 [6], Annex P.2.1.

– For any measured NB-IoT carrier (standalone or operating in E-UTRA in-band/guard band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

For BS capable of multi-band operation, the requirement applies according to Table 7.4.5.1‑1 for the in-band blocking frequency ranges of each supported operating band.

Table 7.4.5.1-1: General blocking requirement

Base Station Type	Mean power of interfering signal [dBm]	Wanted Signal mean power [dBm] (Note 1)	Centre Frequency of Interfering Signal	Interfering signal centre frequency minimum frequency offset from the Base Station RF Bandwidth edge or sub-block edge inside a gap [MHz]
Wide Area BS	-40+y (Note 7)	P_REFSENS + x dB (Note 2)
Medium Range BS	-35+y (Note 7)	P_REFSENS + x dB (Note 3, 6)	F_{UL_low} – Δf_OOB to F_{UL_high} + Δf_OOB	± (7.5 + z) (Note 9)
Local Area BS	-30+y (Note 7)	P_REFSENS + x dB (Note 4, 6)	(Note 8)
NOTE 1: P_REFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2 in TS 37.104. NOTE 2: For WA BS supporting GSM and/or UTRA, "x" is equal to 6 in case of NR or E-UTRA or UTRA or NB-IoT wanted signals and equal to 3 in case of GSM/EDGE wanted signal. NOTE 3: For MR BS supporting GSM and/or UTRA, "x" is equal to 6 in case of UTRA wanted signals, 9 in case of NR or E-UTRA or NB-IoT wanted signal and 3 in case of GSM/EDGE wanted signal. NOTE 4: For LA BS supporting GSM and/or UTRA, "x" is equal to 11 in case of NR or E-UTRA or NB-IoT wanted signal, 6 in case of UTRA wanted signal and equal to 3 in case of GSM/EDGE wanted signal. NOTE 5: For a BS capable of multi-band operation, "x" in Note 2, 3, 4, 6 applies in case of interfering signals that are in the in-band blocking frequency range of the operating band where the wanted signal is present or in the in-band blocking frequency range of an adjacent or overlapping operating band. For other in-band blocking frequency ranges of the interfering signal for the supported operating bands, "x" is equal to 1.4 dB. NOTE 6: For a BS neither supporting UTRA nor GSM, x is equal to 6 for all BS classes if NR is supported, otherwise "x" is equal to 6 for WA BS, 9 for MR BS or 11 for LA BS if NR is not supported. NOTE 7: For a BS supporting NR but neither UTRA nor GSM, "y" is equal to -3 for the WA and MR BS class and -5 for the LA BS class. For all other cases, "y" is equal to zero for all BS classes. NOTE 8: The downlink frequency range of an FDD operating band is excluded from the general blocking requirement. NOTE 9: For NR wanted signal channel bandwidth greater than 20 MHz, z = 22.5. For all other cases, z = 0.

Table 7.4.5.1-2: Void

NOTE: The requirement in Table 7.4.5.1-1 assumes that two operating bands, where the downlink operating band (see Table 4.4-1 and Table 4.4-2) of one band would be within the in-band blocking region of the other band, are not deployed in the same geographical area.

7.4.5.2 General narrowband blocking test requirement

For the narrowband blocking requirement, the interfering signal shall be an E-UTRA 1RB signal as specified in Annex A.3.

For BS operating in non-contiguous spectrum, the requirement applies in addition inside any sub-block gap, in case the sub-block gap size is at least 3MHz. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap.

For BS capable of multi-band operation, the requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least 3MHz. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted and interfering signal coupled to the Base Station antenna input, using the parameters in Table 7.4.5.2-1 the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured NB-IoT carrier(standalone or operating in E-UTRA in-band/guard band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined inTS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

Table 7.4.5.2-1: Narrowband blocking requirement

Base Station Type	RAT of the carrier	Wanted signal mean power [dBm] (Note 1, 2, 6)	Interfering signal mean power [dBm]	Interfering RB (Note 3) centre frequency offset from the Base Station RF Bandwidth edge or sub-block edge inside a gap [kHz]
Wide Area BS	NR, E-UTRA, NB-IoT (Note 4),		-49	±(240 +m*180), m=0, 1, 2, 3, 4, 9, 14 (Note 5)
Medium Range BS	UTRA and	P_REFSENS + x dB	-44	±(550 +m*180),
Local Area BS	GSM/EDGE		-41	m=0, 1, 2, 3, 4 (Note 6)
NOTE 1: P_REFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2 in TS 37.104. NOTE 2: "x" is equal to 6 in case of NR, E-UTRA or UTRA wanted signals and equal to 3 in case of GSM/EDGE wanted signal. "x" is specified in Table 7.4.2-2 for NB-IoT standalone and NB-IoT operation in E-UTRA in-band/guard band and in Table 7.4.2-3 for NB-IoT operation in NR in-band. NOTE 3: Interfering signal (E-UTRA 3MHz) consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the Base Station RF Bandwidth edge. NOTE 4: For NB-IoT, the mentioned desensitized values consider only one NB-IoT PRB in the guard band, which is placed adjacent to the E-UTRA PRB edge as close as possible (i.e., away from edge of channel bandwidth). NOTE 5: Applicable for channel bandwidths equal to or below 20 MHz. NOTE 6: Applicable for channel bandwidths above 20 MHz. NOTE 6: 7.5 kHz shift is not applied to the wanted signal of NR. NOTE 7: Void

Table 7.4.5.2-2: "x" for NB-IoT wanted signals operation in E-UTRA in-band/guard band and NB-IoT standalone

Operation mode	LTE channel bandwidth for in-band/guard band operation	x
Standalone	–	12
In Band	3 MHz	11
	5 MHz	9
	10 MHz	6
	15 MHz	6
	20 MHz	6
Guard band	5 MHz	13
	10 MHz	6
	15 MHz	6
	20 MHz	6

Table 7.4.5.2-3: "x" for NB-IoT wanted signals operation in NR in-band

Operation mode	NR channel bandwidth for in-band operation	x
In Band	5 MHz	9
	≥ 10 MHz	6

7.4.5.3 Additional narrowband blocking test requirement for GSM/EDGE

The GSM/EDGE in-band blocking test requirements are stated in TS 51.021 [11], applicable parts of clause 7.6.

The conditions specified in TS 45.005 [6], Annex P.2.1 apply for GSM/EDGE in-band narrowband blocking.

7.4.5.4 GSM/EDGE test requirements for AM suppression

The GSM/EDGE in-band blocking test requirements are stated in TS 51.021 [11], applicable parts of clause 7.8.

The conditions specified in TS 45.005 [6], Annex P.2.3 apply for GSM/EDGE AM suppression.

7.4.5.5 Additional BC3 blocking test requirement

The interfering signal is a 1.28Mcps UTRA TDD modulated signal as specified in Annex A.2.

For BS capable of multi-band operation, the requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least 4.8MHz. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted and interfering signal coupled to the Base Station antenna input, using the parameters in Table 7.4.5.5-1, the following requirements shall be met:

– For any measured E-UTRA TDD carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

Table 7.4.5.5-1: Additional blocking requirement for Band Category 3

Operating Band	Centre Frequency of Interfering Signal [MHz]			Interfering Signal mean power [dBm]	Wanted Signal mean power [dBm]	Interfering signal centre frequency minimum frequency offset from the Base Station RF Bandwidth edge [MHz]
33 – 40	(F_{UL_low} – 20)	to	(F_{UL_high} + 20)	-40,	P_REFSENS + 6 dB*	±2.4
NOTE*: P_REFSENS depends on the RAT and on the channel bandwidth, see clause 7.2.

7.5 Out-of-band blocking

7.5.1 Definition and applicability

The Out-of-band blocking characteristic is a measure of the receiver ability to receive a wanted signal at its assigned channel in the presence of an unwanted interferer outside the uplink operating band.

The blocking performance requirement applies as specified in the Table 7.5.5.1-1 and Table 7.5.5.2-1.

Unless otherwise stated, a BS declared to be capable of E-UTRA with NB-IoT in-band and guard band operations (or any combination with GSM and/or UTRA) is only required to pass the out-of-band blocking tests for E-UTRA with guard band operation (or any combination with GSM and/or UTRA). It’s not required to perform the out-of-band blocking receiver tests again for E-UTRA with in-band operation (or any combination with GSM and/or UTRA).

7.5.2 Minimum requirement

The general minimum requirement is in TS 37.104 [2] clause 7.5.1. The co-location minimum requirement is in TS 37.104 [2] clause 7.5.2.

7.5.3 Test purpose

The test stresses the ability of the BS receiver to withstand high-level interference from unwanted signals at specified frequency bands, without undue degradation of its sensitivity.

7.5.4 Method of test

7.5.4.1 Initial conditions

Test environment: normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1, B_RFBW_T’_RFBW and B’_RFBW_T_RFBW in multi-band operation, see clause 4.9.1.

In addition, in multi-band operation:

– For B_RFBW_T’_RFBW, out-of-band blocking testing above the highest operating band may be omitted

– For B’_RFBW_T_RFBW, out-of-band blocking testing below the lowest operating band may be omitted

1) Set up the equipment as shown in Annex D.2.1.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using reference measurement channel to the BS under test as follows:

– For E-UTRA see Annex A.1 in TS 36.141 [9].

– For UTRA FDD see Annex A.2 in TS 25.141 [10].

– For UTRA TDD see Annex A.2.1 in TS 25.142 [12].

– For GSM see clause 7.6.2 in TS 51.021 [11] and Annex P in TS 45.005 [6] for reference channels to test.

– For NB-IoT see Annex A.14 in TS 36.141 [9].

– For NR see Annex A.1 in TS 38.141-1 [26].

7.5.4.2 Procedure

1) Set the BS to transmit with the carrier set-up and power allocation according to the applicable test configuration(s) (see clause 5).

The transmitter may be turned off for the out-of-band blocker tests when the frequency of the blocker is such that no IM2 or IM3 products fall inside the bandwidth of the wanted signal.

2) Adjust the signal generators to the type of interfering signals, levels and the frequency offsets as specified for general test requirements in Table 7.5.5.1-1 and, when applicable, for co-location test requirements in Table 7.5.5.2-1.

3) The CW interfering signal shall be swept with a step size of 1 MHz within the specified range.

4) Measure the performance of the wanted signal at the BS receiver, as defined in the clause 7.5.5, for the relevant carriers specified by the test configuration in clause 4.8.

In addition, for a multi-band capable BS with separate antenna connectors, the following steps shall apply:

5) For single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

6) For multi-band tests, the interfering signal shall first be applied on the same port as the wanted signal. The test shall be repeated with the interfering signal applied on the other port (if any) mapped to the same receiver as the wanted signal. Any antenna connector with no signal applied shall be terminated.

7) Repeat step 6 with the wanted signal for the other band(s) applied on the respective port(s).

7.5.5 Test requirements

7.5.5.1 General out-of-band blocking test requirements

For a wanted and an interfering signal coupled to BS antenna input using the parameters in Table 7.5.5.1-1, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured GSM/EDGE carrier, the conditions are specified in TS 45.005 [6], Annex P.2.1.

– For any measured NB-IoT carrier(standalone or operating in E-UTRA in-band/guard band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

For BS capable of multi-band operation, the requirement applies for each supported operating band. The in-band blocking frequency ranges of all supported operating bands according to Table 7.4.5.1-1 shall be excluded from the requirement.

The out-of-band blocking requirement applies from 1 MHz to F_{UL_low} – Δf_OOB and from F_{UL_high} + Δf_OOB up to 12750 MHz, including the downlink frequency range of the FDD operating band for BS supporting FDD. Δf_OOB is defined in table 7.4.1-1.

Table 7.5.5.1-1: Out-of-band blocking performance requirement

Interfering Signal mean power [dBm]

Wanted Signal mean power [dBm]

Type of Interfering Signal

-15 (NOTE2)

P_REFSENS +xdB
(NOTE1)

CW carrier

NOTE1: P_REFSENS depends on the RAT, the BS class and the channel bandwidth, see clause 7.2.
"x" is equal to 6 in case of NR, E-UTRA, UTRA or NB-IoT wanted signals and equal to 3 in case of GSM/EDGE wanted signal.

NOTE2: For NB-IoT, up to 24 exceptions are allowed for

spurious response frequencies in each wanted signal frequency when measured using a 1MHz step size. For these exceptions the above throughput requirement shall be met when the blocking signal is set to a level of -40 dBm for 15 kHz subcarrier spacing and -46 dBm for 3.75 kHz subcarrier spacing. In addition, each group of exceptions shall not exceed three contiguous measurements using a 1MHz step size.

7.5.5.2 Co-location test requirements

This additional blocking requirement may be applied for the protection of BS receivers when NR, E-UTRA, UTRA, CDMA or GSM/EDGE BS operating in a different frequency band are co-located with a BS.

The requirements in this clause assume a 30 dB coupling loss between the interfering transmitter and the BS receiver and are based on co-location with base stations of the same class.

For a wanted and an interfering signal coupled to BS antenna input using the parameters in Table 7.5.5.2-1, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured GSM/EDGE carrier, the conditions are specified in TS 45.005 [6], Annex P.2.1.

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

Table 7.5.5.2-1: Blocking requirement for co-location with BS in other frequency bands

Type of co-located BS	Centre Frequency of Interfering Signal (MHz)	Interfering Signal mean power for WA BS (dBm)	Interfering Signal mean power for MR BS (dBm)	Interfering Signal mean power for LA BS (dBm)	Wanted Signal mean power (dBm)	Type of Interfering Signal
GSM850 or CDMA850	869 – 894	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
GSM900	921 – 960	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
DCS1800	1805 – 1880 (Note 4)	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
PCS1900	1930 – 1990	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band I or E-UTRA Band 1 or NR Band n1	2110 – 2170	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band II or E-UTRA Band 2 or NR Band n2	1930 – 1990	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band III or E-UTRA Band 3 or NR Band n3	1805 – 1880 (Note 4)	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band IV or E-UTRA Band 4	2110 – 2155	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band V or E-UTRA Band 5 or NR Band n5	869 – 894	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band VI or E-UTRA Band 6	875 – 885	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band VII or E-UTRA Band 7 or NR Band n7	2620 – 2690	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band VIII or E-UTRA Band 8 or NR Band n8	925 – 960	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band IX or E-UTRA Band 9	1844.9 – 1879.9	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band X or E-UTRA Band 10	2110 – 2170	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XI or E-UTRA Band 11	1475.9 – 1495.9	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XII or E-UTRA Band 12 or NR Band n12	729 – 746	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XIIII or E-UTRA Band 13 or NR Band n13	746 – 756	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XIV or E-UTRA Band 14 or NR Band n14	758 – 768	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 17	734 – 746	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 18 or NR Band n18	860 – 875	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XIX or E-UTRA Band 19	875 – 890	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XX or E-UTRA Band 20 or NR Band n20	791 – 821	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XXI or E-UTRA Band 21	1495.9 – 1510.9	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XXII or E-UTRA Band 22	3510 – 3590	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 24 or NR Band n24	1525 – 1559	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XXV or E-UTRA Band 25 or NR Band n25	1930 – 1995	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA FDD Band XXVI or E-UTRA Band 26 or NR Band n26	859 – 894	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 27	852 – 869	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 28 or NR Band n28	758 – 803	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 29 or NR Band n29	717-728	+16**	+8**	-6**	P_REFSENS + 6dB*	CW carrier
E-UTRA Band 30 or NR Band n30	2350-2360	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 31	462.5–467.5	+16**	+8**	-6**	P_REFSENS + 6dB*	CW carrier
UTRA FDD Band XXXII or E-UTRA Band 32	1452 – 1496 (NOTE 5)	+16**	+8**	-6**	P_REFSENS + 6dB*	CW carrier
UTRA TDD Band a) or E-UTRA Band 33	1900-1920	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band a) or E-UTRA Band 34 or NR Band n34	2010-2025	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band b) or E-UTRA Band 35	1850-1910	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band b) or E-UTRA Band 36	1930-1990	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band c) or E-UTRA Band 37	1910-1930	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band d) or E-UTRA Band 38 or NR Band n38	2570-2620	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band f) or E-UTRA Band 39 or NR Band n39	1880-1920	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
UTRA TDD Band e) or E-UTRA Band 40 or NR Band n40	2300-2400	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 41 or NR Band n41	2496 – 2690	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 42	3400 – 3600	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 43	3600 – 3800	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 44	703 – 803	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 45	1447 – 1467	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 46 or NR Band n46	5150 – 5925	N/A	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 48 or NR Band n48	3550 – 3700	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 49	3550 – 3700	N/A	N/A	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 50 or NR Band n50	1432 – 1517	+16	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 51 or NR Band n51	1427 – 1432	N/A	N/A	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 52	3300 – 3400	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 53 or NR Band n53	2483.5 – 2495	N/A	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 65 or NR Band n65	2110 – 2200	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 66 or NR Band n66	2110 – 2200	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 67 or NR band n67	738 – 758	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 68	753 – 783	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 69	2570-2620	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 70 or NR Band n70	1995 – 2020	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 71 or NR Band n71	617 – 652	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 72	461 – 466	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 73	460 – 465	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 74 or NR Band n74	1475 – 1518	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 75 or NR Band n75	1432 – 1517	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
E-UTRA Band 76 or NR Band n76	1427 – 1432	N/A	N/A	-6**	P_REFSENS + x dB*	CW carrier
NR Band n77	3300 – 4200	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
NR Band n78	3300 – 3800	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 85 or NR band n85	728 – 746	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 87	420 – 425	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 88	422 – 427	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
NR Band n91	1427 – 1432	N/A	N/A	-6**	P_REFSENS + x dB*	CW carrier
NR Band n92	1432 – 1517	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
NR Band n93	1427 – 1432	N/A	N/A	-6**	P_REFSENS + x dB*	CW carrier
NR Band n94	1432 – 1517	+16**	+8**	-6**	P_REFSENS + x dB*	CW carrier
NR Band n96	5925 – 7125	N/A	+8	-6	P_REFSENS + x dB*	CW carrier
NR Band n100	919.4 – 925	+16	N/A	N/A	P_REFSENS + x dB*	CW carrier
NR Band n101	1900 – 1910	+16	N/A	N/A	P_REFSENS + x dB*	CW carrier
NR Band n102	5925 – 6425	N/A	+8	-6	P_REFSENS + x dB*	CW carrier
E-UTRA Band 103	757 – 758	+16**	+8	-6	P_REFSENS + x dB*	CW carrier
NR Band n104	6425 – 7125	+16	+8	-6	P_REFSENS + x dB*	CW carrier
NOTE 1 ():P_REFSENS depends on the RAT, the BS class and the channel bandwidth, see clause 7.2. "x" is equal to 3 in case of GSM/EDGE wanted signal and equal to 6 in case of NR, UTRA or E-UTRA wanted signals. NOTE 2: Except for a BS operating in Band 13, these requirements do not apply when the interfering signal falls within any of the supported uplink operating band or in the Δf_OOB immediately outside any of the supported uplink operating band. For a BS operating in band 13 the requirements do not apply when the interfering signal falls within the frequency range 768-797MHz. NOTE 3: Some combinations of bands may not be possible to co-site based on the requirements above. The current state-of-the-art technology does not allow a single generic solution for co-location of UTRA TDD or E-UTRA TDD or NR TDD with E-UTRA FDD or NR FDD on adjacent frequencies for 30dB BS-BS minimum coupling loss. However, there are certain site-engineering solutions that can be used. These techniques are addressed in TR 25.942 [14]. NOTE 4: In China, the blocking requirement for co-location with DCS1800 and Band III BS is only applicable in the frequency range 1805-1850MHz. NOTE 5: For a BS operating in band 11, 21 or 74, the requirement for co-location with Band 32 applies for interfering signal within the frequency range 1475.9-1495.9 MHz. NOTE 6: Co-located TDD base stations that are synchronized and using the same or adjacent operating band can receive without special co-location requirements. For unsynchronized base stations, special co-location requirements may apply that are not covered by the 3GPP specifications. NOTE 7 (*): For NB-IoT, up to 24 exceptions are allowed for spurious response frequencies in each wanted signal frequency when measured using a 1MHz step size. For these exceptions the above throughput requirement shall be met when the blocking signal is set to a level of -40 dBm for 15 kHz subcarrier spacing and -46 dBm for 3.75 kHz subcarrier spacing. In addition, each group of exceptions shall not exceed three contiguous measurements using a 1MHz step size.

7.6 Receiver spurious emissions

7.6.1 Definition and applicability

The receiver spurious emissions power is the power of emissions generated or amplified in a receiver that appear at the BS receiver antenna connector. The requirements apply to all BS with separate RX and TX antenna ports. In this case for FDD BS the test shall be performed when both TX and RX are on, with the TX port terminated.

For TDD BS with common RX and TX antenna port the requirement applies during the Transmitter OFF period. For FDD BS with common RX and TX antenna port the transmitter spurious emission limits as specified in clause 6.6.1 are valid.

For BS capable of multi-band operation where multiple bands are mapped on separate antenna connectors, the single-band requirements apply and the excluded frequency range is only applicable for the operating band supported on each antenna connector.

Unless otherwise stated, a BS declared to be capable of E-UTRA with NB-IoT in-band and guard band operations (or any combination with GSM and/or UTRA) is only required to pass the receiver spurious emissions tests for E-UTRA with guard band operation (or any combination with GSM and/or UTRA). It’s not required to perform the receiver spurious emissions tests again for E-UTRA with in-band operation (or any combination with GSM and/or UTRA).

7.6.2 Minimum requirements

The minimum requirement is in TS 37.104 [2] clause 7.6.1.

7.6.3 Test purpose

The test purpose is to verify the ability of the BS to limit the interference caused by receiver spurious emissions to other systems.

7.6.4 Method of test

7.6.4.1 Initial conditions

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1, B_RFBW_T’_RFBW and B’_RFBW_T_RFBW in multi-band operation, see clause 4.9.1.

1) Set up the equipment as shown in Annex D.2.1.

2) Detection mode: True RMS.

The emission power should be averaged over an appropriate time duration to ensure the measurement is within the measurement uncertainty in Table 4.1.2-2.

7.6.4.2 Procedure

1) Set the measurement equipment parameters as specified in Table 7.6.5.1-1. For BC2, the parameters in Table 7.6.5.2-1 apply in addition.

2) Set the BS to transmit with the carrier set-up and power allocation according to the applicable test configuration(s) (see clause 5).

3) Measure the spurious emissions over each frequency range described in clause 7.6.5.

In addition, for a multi-band capable BS, the following step shall apply:

4) For multi-band capable BS and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band. For multi-band capable BS with separate antenna connector, the antenna connector not being under test in case of SBT or MBT shall be terminated.

7.6.5 Test requirements

7.6.5.1 General test requirements

The power of any spurious emission shall not exceed the levels in Table 7.6.5.1-1.

Table 7.6.5.1-1: General spurious emission test requirement

Frequency range	Maximum level	Measurement Bandwidth	Note
30 MHz ‑ 1 GHz	-57 dBm	100 kHz
1 GHz ‑ 12.75 GHz	-47 dBm	1 MHz
12.75 GHz – 5^th harmonic of the upper frequency edge of the UL operating band in GHz	-47 dBm	1 MHz	This spurious frequency range applies only for operating bands for which the 5^th harmonic of the upper frequency edge of the UL operating band is reaching beyond 12.75 GHz.
NOTE: The frequency range from F_{BW RF,DL,low} – Δf_OBUE to F_{BW RF,DL,high} + Δf_OBUE may be excluded from the requirement. For BS capable of multi-band operation, the exclusion applies for all supported operating bands. For BS capable of multi-band operation where multiple bands are mapped on separate antenna connectors, the single-band requirements apply and the excluded frequency range is only applicable for the operating band supported on each antenna connector.

In addition to the requirements in Table 7.6.5.1-1, the power of any spurious emission shall not exceed the additional spurious emissions requirements in clause 6.6.1.5.5 and in case of FDD BS (for BC1 and BC2) emission shall not exceed the levels specified for protection of the BS receivers of own or different BS in clause 6.6.1.5.4. In addition, the requirements for co-location with other Base Stations specified in clause 6.6.1.5.6 may also be applied.

7.6.5.2 Additional test requirement for BC2 (Category B)

For a BS operating in Band Category 2 when GSM/EDGE is configured and where Category B spurious emissions apply, the power of any spurious emissions shall not exceed the limits in Table 7.6.5.2-1.

For BS capable of multi-band operation, the limits in Table 7.6.5.2-1 are only applicable when all supported operating bands belong to BC2 and GSM/EDGE is configured in all bands.

Table 7.6.5.2-1: Additional BS spurious emissions limits for BC2, Category B

Frequency range	Frequency offset from transmitter operating band edge (Note 1)	Maximum level	Measurement Bandwidth
	10 – 20 MHz	-57 dBm	300 kHz
500 MHz – 1 GHz	20 – 30 MHz	-57 dBm	1 MHz
	≥ 30 MHz	-57 dBm	3 MHz
1 GHz – 12.75 GHz	≥ 30 MHz	-47 dBm	3 MHz
NOTE 1: For BS capable of multi-band operation, the frequency offset is relative to the closest supported operating band.

7.7 Receiver intermodulation

7.7.1 Definition and applicability

Third and higher order mixing of the two interfering RF signals can produce an interfering signal in the band of the desired channel. Intermodulation response rejection is a measure of the capability of the receiver to receive a wanted signal on its assigned channel frequency in the presence of two interfering signals which have a specific frequency relationship to the wanted signal.

Unless otherwise stated, a BS declared to be capable of E-UTRA with NB-IoT in-band and guard band operations (or any combination with GSM and/or UTRA) is only required to pass the receiver intermodulation tests for E-UTRA with guard band operation (or any combination with GSM and/or UTRA). It’s not required to perform the receiver intermodulation tests again for E-UTRA with in-band operation (or any combination with GSM and/or UTRA).

7.7.2 Minimum requirement

The minimum requirement is in TS 37.104 [2], clauses 7.7.1, 7.7.2 and 7.7.3.

7.7.3 Test purpose

The test purpose is to verify the ability of the BS receiver to inhibit the generation of intermodulation products in its non-linear elements caused by the presence of two high-level interfering signals at frequencies with a specific relationship to the frequency of the wanted signal.

7.7.4 Method of test

7.7.4.1 Initial conditions

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: In single-band operation: M_RFBWif TC6 is applicable; B_RFBW and T_RFBWfor other TC, see clause 4.9.1, Table 5.1-1 and Table 5.2-1. In multi- band operation: B_RFBW_T’_RFBW and B’_RFBW_T_RFBW, see clause 4.9.1.

1) Set-up the measurement system as shown in Annex D.2.3.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using reference measurement channel to the BS under test as follows:

– For E-UTRA see Annex A.1 in TS 36.141 [9].

– For UTRA FDD see Annex A.2 in TS 25.141 [10].

– For UTRA TDD see Annex A.2.1 in TS 25.142 [12].

– For GSM see clause 7.7.2 in TS 51.021 [11] and Annex P in TS 45.005 [6] for reference channels to test.

– For NB-IoT see Annex A.14 in TS 36.141 [9].

– For NR see Annex A.1 in TS 38.141-1 [26].

7.7.4.2 Procedure for general and narrowband intermodulation

1) Adjust the signal generators to the type of interfering signals, levels and the frequency offsets as specified in Table 7.7.5.1-1 and Table 7.7.5.1-2 for general intermodulation requirement, and Table 7.7.5.2-1 and Table 7.7.5.2-2 for narrowband intermodulation requirement.

2) Measure the performance of the wanted signal at the BS receiver, as defined in clause 7.7.5.1 and 7.7.5.2, for the relevant carriers specified by the test configuration in clause 4.8.

In addition, for a multi-band capable BS with separate antenna connectors, the following steps shall apply:

3) For single band tests, repeat the steps above per involved band where single band test configurations shall apply with no carrier activated in the other band.

4) For multi-band tests, the interfering signal shall first be applied on the same port as the wanted signal. The test shall be repeated with the interfering signal applied on the other port (if any) mapped to the same receiver as the wanted signal. Any antenna connector with no signal applied shall be terminated.

5) Repeat step 6 with the wanted signal for the other band(s) applied on the respective port(s).

7.7.4.3 Procedure for additional narrowband intermodulation for GSM/EDGE

For a BS declared to support CS1 to CS6 or CS9 to CS13, the GSM/EDGE MC-BTS receiver intermodulation method of test is stated in TS 51.021 [11], applicable parts of clause 7.7, shall apply for GSM/EDGE carriers.

The conditions specified in TS 45.005 [6], Annex P.2.2 apply for the GSM/EDGE intermodulation requirement.

If a BS is declared to support CS7 or CS15, the steps in clause 7.7.4.3.1 and 7.7.4.3.2 for testing additional narrowband blocking for GSM/EDGE shall apply:

7.7.4.3.1 Initial conditions for additional narrowband intermodulation for GSM/EDGE for CS7 and CS15

Test environment: Normal; see Annex B.2.

Base Station RF Bandwidth positions to be tested: M_RFBW in single-band operation, see clause 4.9.1,

1) Set up the equipment as shown in Annex D.2.3.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the BS under test as follows:

– For GSM see clause 7.7 in TS 51.021 [11] and Annex P.2.2 in TS 45.005 [6] for reference channels to test.

7.7.4.3.2 Procedure for additional narrowband intermodulation for GSM/EDGE for CS7 and CS15

1) Set the BS according to the applicable test configuration(s) (see clause 5).

2) Adjust the GSM/EDGE signal generator to the wanted signal levels as specified in TS 51.021, applicable parts of clauses 7.7.

3) Set-up the interfering signal as specified in TS 51.021, applicable parts of clauses 7.7.

4) Measure the performance of the GSM/EDGE wanted signal at the BS receiver, as defined in TS 51.021, applicable parts of clause 7.7.

7.7.5 Test requirements

7.7.5.1 General intermodulation test requirement

Interfering signals shall be a CW signal and an E-UTRA or UTRA signal, as specified in Annex A.

For BS capable of multi-band operation, the requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least twice as wide as the UTRA/E-UTRA interfering signal centre frequency offset from the Base Station RF Bandwidth edge. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted signal at the assigned channel frequency and two interfering signals coupled to the Base Station antenna input, using the parameters in Table 7.7.5.1-1 and 7.7.5.1-2, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured NB-IoT carrier (standalone or operating in E-UTRA in-band/guard band),, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

Table 7.7.5.1-1: General intermodulation requirement

Base Station Type	Mean power of interfering signals [dBm]	Wanted Signal mean power [dBm]	Type of interfering signal
Wide Area BS	-48+y (Note 6)	P_REFSENS +x dB (Note 2)
Medium Range BS	-44+y (Note 6)	P_REFSENS +x dB (Note 3, 5)	See Table 7.7.5.1-2
Local Area BS	-38+y (Note 6)	P_REFSENS +x dB (Note 4, 5)
NOTE 1: P_REFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2 in TS 37.104 [2]. For E-UTRA channel bandwidths 10, 15 and 20 MHz this requirement shall apply only for a FRC A1-3 mapped to the frequency range at the channel edge adjacent to the interfering signals. NOTE 2: For WA BS supporting GSM and/or UTRA, "x" is equal to 6 in case of NR or E-UTRA or UTRA or NB-IoT wanted signals and equal to 3 in case of GSM/EDGE wanted signal. NOTE 3: For MR BS supporting GSM and/or UTRA, "x" is equal to 6 in case of UTRA wanted signals, 9 in case of NR or E-UTRA or NB-IoT wanted signal and equal to 3 in case of GSM/EDGE wanted signal. NOTE 4: For LA BS supporting GSM and/or UTRA, "x" is equal to 12 in case of NR or E-UTRA or NB-IoT wanted signals, 6 in case of UTRA wanted signal and equal to 3 in case of GSM/EDGE wanted signal. NOTE 5: For a BS neither supporting GSM nor UTRA, x is equal to 6 for all BS classes if NR is supported, otherwise x is equal to 6 for WA BS or, 9 for MR BS and 12 for LA BS if NR is not supported. NOTE 6: For a BS supporting NR but neither UTRA nor GSM; "y" is equal to -4 for the WA BS class, -3 for the MR BS class and -6 for the LA BS class. For all other cases, "y" is equal to zero for all BS classes.

Table 7.7.5.1-2: Interfering signals for intermodulation requirement

RAT of the carrier adjacent to the upper/lower Base Station RF Bandwidth edge	Interfering signal centre frequency offset from the Base Station RF Bandwidth edge [MHz]	Type of interfering signal
E-UTRA 1.4 MHz	±2.0 (BC1 and BC3) / ±2.1 (BC2)	CW
	±4.9	1.4MHz E-UTRA signal
E-UTRA 3 MHz or E-UTRA with NB-IoT in-band	±4.4 (BC1 and BC3) / ±4.5 (BC2)	CW
	±10.5	3MHz E-UTRA signal
UTRA FDD and E-UTRA or E-UTRA with NB-IoT in-band/guard band 5 MHz	±7.5	CW
	±17.5	5MHz E-UTRA signal
E-UTRA or E-UTRA with NB-IoT in-band/guard band 10 MHz	±7.375	CW
	±17.5	5MHz E-UTRA signal
E-UTRA or E-UTRA with NB-IoT in-band/guard band15 MHz	±7.25	CW
	±17.5	5MHz E-UTRA signal
E-UTRA or E-UTRA with NB-IoT in-band/guard band 20 MHz	±7.125	CW
	±17.5	5MHz E-UTRA signal
GSM/EDGE	±7.575	CW
	±17.5	5MHz E-UTRA signal
NB-IoT standalone	±7.575	CW
	±17.5	5MHz E-UTRA signal
1.28 Mcps UTRA TDD	±2.3 (BC3)	CW
	±5.6 (BC3)	1.28Mcps UTRA TDD signal
NR 5 MHz or NR with NB-IoT operation in NR in-band	±7.5	CW
	±17.5	5MHz E-UTRA signal
NR 10 MHz or NR with NB-IoT operation in NR in-band	±7.465	CW
	±17.5	5MHz E-UTRA signal
NR 15 MHz or NR with NB-IoT operation in NR in-band	±7.43	CW
	±17.5	5MHz E-UTRA signal
NR 20 MHz or NR with NB-IoT operation in NR in-band	±7.395	CW
	±17.5	5MHz E-UTRA signal
NR 25 MHz or NR with NB-IoT operation in NR in-band	±7.465	CW
	±25	20MHz E-UTRA signal
NR 30 MHz or NR with NB-IoT operation in NR in-band	±7.43	CW
	±25	20MHz E-UTRA signal
NR 35 MHz or NR with NB-IoT operation in NR in-band	±7.44	CW
	±25	20MHz E-UTRA signal
NR 40 MHz or NR with NB-IoT operation in NR in-band	±7.45	CW
	±25	20MHz E-UTRA signal
NR 45 MHz or NR with NB-IoT operation in NR in-band	±7.37	CW
	±25	20MHz E-UTRA signal
NR 50 MHz or NR with NB-IoT operation in NR in-band	±7.35	CW
	±25	20MHz E-UTRA signal
NR 60 MHz	±7.49	CW
	±25	20MHz E-UTRA signal
NR 70 MHz	±7.42	CW
	±25	20MHz E-UTRA signal
NR 80 MHz	±7.44	CW
	±25	20MHz E-UTRA signal
NR 90 MHz	±7.46	CW
	±25	20MHz E-UTRA signal
NR 100 MHz	±7.48	CW
	±25	20MHz E-UTRA signal

7.7.5.2 General narrowband intermodulation test requirement

Interfering signals shall be a CW signal and an E-UTRA 1RB signal, as specified in Annex A.

For BS operating in non-contiguous spectrum within each supported operating band, the requirement applies in addition inside any sub-block gap in case the sub-block gap is at least as wide as the channel bandwidth of the E-UTRA interfering signal in Table 7.7.5.2-2. The interfering signal offset is defined relative to the sub-block edges inside the gap.

For BS capable of multi-band operation, the requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least as wide as the E-UTRA interfering signal in Table 7.7.5.2-2. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted signal at the assigned channel frequency and two interfering signals coupled to the Base Station antenna input, using the parameters in Table 7.7.5.2-1 and 7.7.5.2-2, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 36.104 [5], clause 7.2.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.104 [3], clause 7.2.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in TS 25.105 [4], clause 7.2.

– For any measured GSM/EDGE carrier, the conditions are specified in TS 45.005 [6], Annex P.2.2.

– For any measured NB-IoT carrier (operating in NR in-band), the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– For any measured NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

– Maximum throughput of the reference measurement channel defined in TS 38.104 [27], clause 7.2.

Table 7.7.5.2-1: General narrowband intermodulation requirement

Base Station Type	Mean power of interfering signals [dBm]	Wanted Signal mean power [dBm]	Type of interfering signal
Wide Area BS	-52
Medium Range BS	-47	P_REFSENS +x dB	See Table 7.7.5.2-2
Local Area BS	-44	(NOTE 1)
NOTE 1: P_REFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2 in TS 37.104. "x" is equal to 6 in case of NR, NB-IoT,E-UTRA or UTRA wanted signals and equal to 3 in case of GSM/EDGE wanted signal. "x" is specified in Table 7.7.5.2-1a for NB-IoT

Table 7.7.5.2-2: Interfering signals for narrowband intermodulation requirement

RAT of the carrier adjacent to the upper/lower Base Station RF Bandwidth edge or sub-block edge	Interfering signal centre frequency offset from the Base Station RF Bandwidthedge or sub-block edge inside a gap [kHz]	Type of interfering signal
E-UTRA 1.4 MHz	±260 (BC1 and BC3) / ±270 (BC2)	CW
	±970 (BC1 and BC3) / ±790 (BC2)	1.4 MHz E-UTRA signal, 1 RB (NOTE 1)
E-UTRA or E-UTRA with NB-IoT in-band 3 MHz	±260 (BC1 and BC3) / ±270 (BC2)	CW
	±960 (BC1 and BC3) / ±780 (BC2)	3.0 MHz E-UTRA signal, 1 RB (NOTE 1)
E-UTRA or E-UTRA with NB-IoT in-band/guard band 5 MHz	±360 (NOTE 3)	CW
	±1060	5 MHz E-UTRA signal, 1 RB (NOTE 1)
E-UTRA or E-UTRA with NB-IoT in-band/guard band 10 MHz	±325 (NOTE 3)	CW
(NOTE 2)	±1240	5 MHz E-UTRA signal, 1 RB (NOTE 1)
E-UTRA or E-UTRA with NB-IoT in-band/guard band 15 MHz	±380 (NOTE 3)	CW
(NOTE 2)	±1600	5MHz E-UTRA signal, 1 RB (NOTE 1)
E-UTRA or E-UTRA with NB-IoT in-band/guard band 20 MHz	±345 (NOTE 3)	CW
(NOTE 2)	±1780	5MHz E-UTRA signal, 1 RB (NOTE 1)
UTRA FDD	±345 (BC1 and BC2)	CW
	±1780 (BC1 and BC2)	5MHz E-UTRA signal, 1 RB (NOTE 1)
GSM/EDGE	±340	CW
	±880	5MHz E-UTRA signal, 1 RB (NOTE 1)
NB-IoT standalone	±340	CW
	±880	5MHz E-UTRA signal, 1 RB (NOTE 1)
1.28Mcps UTRA TDD	±190 (BC3)	CW
	±970 (BC3)	1.4 MHz E-UTRA signal, 1 RB (NOTE 1)
NR 5 MHz or NR with NB-IoT operation in NR in-band	±360	CW
	±1420	E-UTRA signal, 1 RB (NOTE 1)
NR 10 MHz or NR with NB-IoT operation in NR in-band	±370	CW
	±1960	E-UTRA signal, 1 RB (NOTE 1)
NR 15 MHz or NR with NB-IoT operation in NR in-band	±380	CW
(Note 2)	±1960	E-UTRA signal, 1 RB (NOTE 1)
NR 20 MHz or NR with NB-IoT operation in NR in-band	±390	CW
(Note 2)	±2320	E-UTRA signal, 1 RB (NOTE 1)
NR 25 MHz or NR with NB-IoT operation in NR in-band	±325	CW
(Note 2)	±2350	E-UTRA signal, 1 RB (NOTE 1)
NR 30 MHz or NR with NB-IoT operation in NR in-band	±335	CW
(Note 2)	±2350	E-UTRA signal, 1 RB (NOTE 1)
NR 35 MHz or NR with NB-IoT operation in NR in-band (Note 2)	±345	CW
	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 40 MHz or NR with NB-IoT operation in NR in-band	±355	CW
(Note 2)	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 45 MHz or NR with NB-IoT operation in NR in-band (Note 2)	±365	CW
	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 50 MHz or NR with NB-IoT operation in NR in-band	±375	CW
(Note 2)	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 60 MHz	±395	CW
(Note 2)	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 70 MHz	±415	CW
(Note 2)	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 80 MHz	±435	CW
(Note 2)	±2710	E-UTRA signal, 1 RB (NOTE 1)
NR 90 MHz	±365	CW
(Note 2)	±2530	E-UTRA signal, 1 RB (NOTE 1)
NR 100 MHz	±385	CW
(Note 2)	±2530	E-UTRA signal, 1 RB (NOTE 1)
NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the Base Station RF Bandwidth edge or sub-block edge inside a gap. NOTE 2: This requirement shall apply only for an E-UTRA FRC A1-3 or NR G-FRC mapped to the frequency range at the channel edge adjacent to the interfering signals. NOTE 3: The frequency offset shall be adjusted to accommodate the IMD product to fall in the NB-IoT RB for NB-IoT in-band/guard band operation. NOTE 4: The frequency offset shall be adjusted to accommodate the IMD product to fall in the NB-IoT RB for NB-IoT in-band/guard band operation. NOTE 5: If a BS RF receiver fails the test of the requirement, the test shall be performed with the CW interfering signal frequency shifted away from the wanted signal by 180 kHz and the E-UTRA interfering signal frequency shifted away from the wanted signal by 360 kHz. If the BS RF receiver still fails the test after the frequency shift, then the BS RF receiver shall be deemed to fail the requirement.

7.7.5.3 Additional narrowband intermodulation test requirement for GSM/EDGE

The GSM/EDGE MC-BTS receiver intermodulation test requirements are stated in TS 51.021 [11], applicable parts of clause 7.7, shall apply for GSM/EDGE carriers.

The conditions specified in TS 45.005 [6], Annex P.2.2 apply for the GSM/EDGE intermodulation requirement.

7.8 In-channel selectivity

7.8.1 Definition and applicability

In-channel selectivity (ICS) is a measure of the receiver ability to receive a wanted signal at its assigned resource block locations in the presence of an interfering signal received at a larger power spectral density. In this condition a throughput requirement shall be met for a specified reference measurement channel. This requirement is applicable for NR, NB-IoT operation in NR in-band ,E-UTRA carriers and E-UTRA with NB-IoT in-band operation carrier.

7.8.2 Minimum requirement

The minimum requirement is in TS 37.104 [2] clause 7.8.1.

7.8.3 Test purpose

The purpose of this test is to verify the BS receiver ability to suppress the IQ leakage.

7.8.4 Method of testing

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 7.4.4.

– For references to TS 38.141-1 [26], the method of test is specified in TS 38.141-1 [26], clause 7.8.4.

In addition, for a multi-band capable BS, the following step shall apply:

7.8.5 Test requirements

The test requirements are in TS 36.141 [9], clause 7.4.5 and in TS 38.141-1 [26], clause 7.8.5.