6.6.6 Spurious emission

37.1053GPPActive Antenna System (AAS) Base Station (BS) transmission and receptionRelease 17TS

6.6.6.1 General

The conducted transmitter spurious emission limits apply from 9 kHz to 12.75 GHz, excluding the following RAT-specific frequency ranges:

– UTRA TDD BS, 1.28 Mcps option as specified in TS 25.105 [3]: from 4 MHz below the lowest frequency of each operating band to 4 MHz above the highest frequency of each operating band.

– UTRA FDD BS as specified in TS 25.104 [2]: from 12.5MHz below the lowest carrier frequency used up to 12.5MHz above the highest carrier frequency used.

– E-UTRA BS as specified in TS 36.104 [4]: from ΔfOBUE below the lowest frequency of the downlink operating band up to ΔfOBUE above the highest frequency of the downlink operating band, where ΔfOBUE is defined subclause 6.6.1.

– MSR BS as specified in TS 37.104 [5]: from ΔfOBUE below the lowest frequency of the downlink operating band up to ΔfOBUE above the highest frequency of the downlink operating band, where ΔfOBUE is defined subclause 6.6.1.

For some operating bands the upper frequency limit is higher than 12.75 GHz in order to comply with the 5th harmonic limit of the downlink operating band, as specified in ITU-R recommendation SM.329 [14]. In some exceptional cases, requirements apply also closer than ΔfOBUE MHz from the downlink operating band; these cases are highlighted in the requirement tables in respective referenced UTRA, E-UTRA or MSR specifications. For operating bands supported by multi-band TAB connectors exclusion bands apply to each supported band.

The requirements apply for both single band TAB connectors and multi-band TAB connectors (except for frequencies at which exclusion bands or other multi-band provisions apply) and for all transmission modes foreseen by the manufacturer’s specification. Unless otherwise stated, all requirements are measured as mean power.

For operation in Region 2, where the FCC guidance for MIMO systems in [18] is applicable, NTXU,countedpercell shall be equal to 1 for the purposes of calculating the spurious emissions limits in subclauses 6.6.6.2, 6.6.6.3 or 6.6.6.4. For all other unwanted emissions requirements, NTXU,countedpercell shall be the value calculated according to subclause 6.1, unless stated differently in regional regulation.

The AAS BS requirements for spurious emissions limits which are specified for Band 46 or Band 49 in 3GPP TS 37.104 [5], are applicable for AAS BS.

6.6.6.2 Minimum requirement for MSR operation

The MSR spurious emission basic limits are the same as those specified in 3GPP TS 37.104 [9], subclauses 6.6.1.1, 6.6.1.2, 6.6.1.3 and 6.6.1.4.

The spurious emission requirements for an MSR AAS BS are that for each TAB connector TX mincell group and each applicable basic limit as specified in 3GPP TS 37.104 [5], the power summation emissions at the TAB connectors of the TAB connector TX min cell group shall not exceed an AAS limit specified as the basic limit + X, where X = 10log10(NTXU,countedpercell), unless stated differently in regional regulation.

NOTE: Conformance to the AAS BS spurious emission requirement can be demonstrated by meeting at least one of the following criteria as determined by the manufacturer:

1) The sum of the emissions power measured on each TAB connector in the TAB connector TX min cell group shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span.

Or

2) The unwanted emissions power at each TAB connector shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span, scaled by -10log10(n), where n is the number of TAB connectors in the TAB connector TX min cell group.

6.6.6.3 Minimum requirement for single RAT UTRA operation

The single RAT UTRA FDD spurious emission basic limits are the same as those specified in 3GPP TS 25.104 [6], subclauses 6.6.3.1-6.6.3.8.

The single RAT UTRA TDD spurious emission basic limits are the same as those specified in 3GPP TS 25.105 [7], subclauses 6.6.3.1-6.6.3.5.

The spurious emission requirements for a UTRA single RAT AAS BS are that for each TAB connector TX min cell group and each applicable basic limit as specified in 3GPP TS 25.104 [6] or 3GPP TS 25.105 [7], the power sum of the emissions at the TAB connectors associated with the TAB connector TX min cell group shall not exceed an AAS limit specified as the basic limit + X, where X = 10log10(NTXU,countedpercell), unless stated differently in regional regulation.

NOTE: Conformance to the AAS BS spurious emission requirement can be demonstrated by meeting at least one of the following criteria as determined by the manufacturer:

1) The sum of the emissions power measured on each TAB connector in the TAB connector TX min cell group shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span.

Or

2) The unwanted emissions power at each TAB connector shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span, scaled by -10log10(n), where n is the number of TAB connectors in the TAB connector TX min cell group.

6.6.6.4 Minimum requirement for single RAT E-UTRA operation

Single RAT E-UTRA operation spurious emission basic limits are the same as those specified in 3GPP TS 36.104 [8], subclauses 6.6.4.1-6.6.4.4. Spurious emission limits specified in TS 36.104 [8], subclauses 6.6.4.1-6.6.4.4 for Band 41, Band 46 and Band 49 are not applicable for AAS BS.

The spurious emission requirements for AAS BS in single RAT E-UTRA operation are that for each TAB connector TX min cell group and for each applicable basic limit as specified in 3GPP TS 36.104 [4], the total emissions at the TAB connectors associated with the TAB connector TX min cell group shall not exceed an AAS limit specified as the basic limit + X, where X = 10log10(NTXU,countedpercell), unless stated differently in regional regulation.

NOTE: Conformance to the AAS BS spurious emission requirement can be demonstrated by meeting at least one of the following criteria as determined by the manufacturer:

1) The sum of the emissions power measured on each TAB connector in the TAB connector TX min cell group shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span.

Or

2) The unwanted emissions power at each TAB connector shall be less than or equal to the AAS BS limit as defined in this subclause for the respective frequency span, scaled by -10log10(n), where n is the number of TAB connectors in the TAB connector TX min cell group.