4 General
36.1043GPPBase Station (BS) radio transmission and receptionEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TS
4.1 Relationship between minimum requirements and test requirements
The Minimum Requirements given in this specification make no allowance for measurement uncertainty. The test specification TS 36.141 [4] Annex G defines Test Tolerances. These Test Tolerances are individually calculated for each test. The Test Tolerances are used to relax the Minimum Requirements in this specification to create Test Requirements.
The measurement results returned by the Test System are compared – without any modification – against the Test Requirements as defined by the shared risk principle.
The Shared Risk principle is defined in ITU-R M.1545 [3].
4.2 Base station classes
The requirements in this specification apply to Wide Area Base Stations, Medium Range Base Stations, Local Area Base Stations and Home Base Stations unless otherwise stated.
Wide Area Base Stations are characterised by requirements derived from Macro Cell scenarios with a BS to UE minimum coupling loss equal to 70 dB. The Wide Area Base Station class has the same requirements as the base station for General Purpose application in Release 8.
Medium Range Base Stations are characterised by requirements derived from Micro Cell scenarios with a BS to UE minimum coupling loss equal to 53 dB.
Local Area Base Stations are characterised by requirements derived from Pico Cell scenarios with a BS to UE minimum coupling loss equal to 45 dB.
Home Base Stations are characterised by requirements derived from Femto Cell scenarios.
4.3 Regional requirements
Some requirements in the present document may only apply in certain regions either as optional requirements or set by local and regional regulation as mandatory requirements. It is normally not stated in the 3GPP specifications under what exact circumstances that the requirements apply, since this is defined by local or regional regulation.
Table 4.3-1 lists all requirements that may be applied differently in different regions.
Table 4.3-1: List of regional requirements
|
Clause number |
Requirement |
Comments |
|
5.5 |
Operating bands |
Some bands may be applied regionally. |
|
5.6 |
Channel bandwidth |
Some channel bandwidths may be applied regionally. |
|
5.7 |
Channel arrangement |
The requirement is applied according to what operating bands in clause 5.5 that are supported by the BS. |
|
6.2 |
Base station maximum output power |
In certain regions, the minimum requirement for normal conditions may apply also for some conditions outside the range of conditions defined as normal. |
|
6.2.2 |
Additional requirement (regional) |
For Band 34 and Band 41 operation in certain regions, the rated output power declared by the manufacturer shall be less than or equal to the values specified in Table 6.2.2-1 and 6.2.2-2, respectively. In addition for Band 46 operation, the BS may have to comply with the applicable BS power limits established regionally, when deployed in regions where those limits apply and under the conditions declared by the manufacturer. |
|
6.6.1.1 |
Occupied bandwidth |
For Band 46 operation in certain regions, the occupied bandwidth for each 20MHz channel bandwidth E-UTRA carrier shall be less than or equal to 19MHz or 19.7MHz. |
|
6.6.3.1 |
Operating band unwanted emissions (Category A) |
This requirement is mandatory for regions where Category A limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [2] apply. |
|
6.6.3.2 |
Operating band unwanted emissions (Category B) |
This requirement is mandatory for regions where Category B limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [2], apply. |
|
6.6.3.3 |
Additional requirements |
These requirements may apply in certain regions as additional Operating band unwanted emission limits. In addition for Band 46 operation, the BS may have to comply with the applicable operating band unwanted emission limits established regionally, when deployed in regions where those limits apply and under the conditions declared by the manufacturer. |
|
6.6.4.1.1 |
Spurious emissions (Category A) |
This requirement is mandatory for regions where Category A limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [2] apply. |
|
6.6.4.1.2 |
Spurious emissions (Category B) |
This requirement is mandatory for regions where Category B limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [2], apply. |
|
6.6.4.3 |
Additional spurious emission requirements |
These requirements may be applied for the protection of system operating in frequency ranges other than the E-UTRA BS operating band. In addition for Band 46 operation, the BS may have to comply with the applicable spurious emission limits established regionally, when deployed in regions where those limits apply and under the conditions declared by the manufacturer. |
|
6.6.4.4 |
Co-location with other base stations |
These requirements may be applied for the protection of other BS receivers when a BS operating in another frequency band is co-located with an E-UTRA BS. |
|
6.7.2 |
Additional requirements |
These requirements may apply in certain regions. |
|
7.6.2 |
Co-location with other base stations |
These requirements may be applied for the protection of the BS receiver when a BS operating in another frequency band is co-located with an E‑UTRA BS. |
4.4 Applicability of requirements
For BS that is E-UTRA (single-RAT), E-UTRA with NB-IoT (in band and/or guard band) or standalone NB-IoT capable only, MBMS (including 15 kHz, 7.5 kHz,1.25 kHz, 2.5 kHz and 0.37 kHz subcarrier spacing), the requirements in the present document are applicable and additional conformance to TS 37.104 [15] is optional. For a BS additionally conforming to TS 37.104 [15], conformance to some of the RF requirements in the present document can be demonstrated through the corresponding requirements in TS 37.104 [15] as listed in Table 4.4-1.
Table 4.4-1: Alternative RF minimum requirements for a BS additionally conforming to TS 37.104 [15]
|
RF requirement |
Clause in the present document |
Alternative clause in TS 37.104 [15] |
|
Base station output power |
6.2.1 6.2.2 |
6.2.1 |
|
Transmit ON/OFF power |
6.4 |
6.4 |
|
Unwanted emissions |
||
|
Transmitter spurious emissions |
6.6.4 |
6.6.1 (except for 6.6.1.1.3) |
|
Operating band unwanted emissions |
6.6.3.1, 6.6.3.2 (NOTE 1) |
6.6.2 (except for 6.6.2.3 and 6.6.2.4) |
|
Transmitter intermodulation |
6.7 |
6.7.1 |
|
Narrowband blocking |
7.5.1 |
7.4.2 |
|
Blocking |
7.6.1.1 |
7.4.1 |
|
Out-of-band blocking |
7.6.1.1 |
7.5.1 |
|
Co-location with other base stations |
7.6.2.1 |
7.5.2 |
|
Receiver spurious emissions |
7.7.1 |
7.6.1 |
|
Intermodulation |
7.8.1 |
7.7.1 |
|
Narrowband intermodulation |
7.8.1 |
7.7.2 |
|
NOTE 1: This does not apply when the lowest or highest carrier frequency is configured as 1.4 or 3 MHz carrier in bands of Band Category 1 or 3 according to clause 4.5 in TS 37.104 [15]. |
||
4.5 Requirements for BS capable of multi-band operation
For BS capable of multi-band operation, the RF requirements in clause 6 and 7 apply for each supported operating band unless otherwise stated. For some requirements it is explicitly stated that specific additions or exclusions to the requirement apply for BS capable of multi-band operation.
For BS capable of multi-band operation, various structures in terms of combinations of different transmitter and receiver implementations (multi-band or single band) with mapping of transceivers to one or more antenna port(s) in different ways are possible. In the case where multiple bands are mapped on an antenna connector, the exclusions or provisions for multi-band capable BS are applicable to this antenna connector. In the case where a single band is mapped on an antenna connector, the following applies:
– Single-band ACLR, operating band unwanted emissions, transmitter spurious emissions, transmitter intermodulation and receiver spurious emissions requirements apply to this antenna connector that is mapped to single-band.
– If the BS is configured for single-band operation, single-band requirements shall apply to this antenna connector configured for single-band operation and no exclusions or provisions for multi-band capable BS are applicable. Single-band requirements are tested separately at the antenna connector configured for single-band operation, with all other antenna connectors terminated.
For a band supported by a Base Station where the transmitted carriers are not processed in active RF components together with carriers in any other band, single-band transmitter requirements shall apply. For a band supported by a Base Station where the received carriers are not processed in active RF components together with carriers in any other band, single-band receiver requirements shall apply.
For a BS capable of multi-band operation supporting bands for TDD, the RF requirements in the present specification assume synchronized operation, where no simultaneous uplink and downlink occur between the supported operating bands.
The RF requirements in the present specification are FFS for multi-band operation supporting bands for both FDD and TDD.