4 General

25.1053GPPBase Station (BS) radio transmission and reception (TDD)Release 17TS

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

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 25.142 section 5.9.6 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 ETR 273 Part 1 sub-part 2 section 6.5.

4.2 Base station classes

The requirements in this specification apply to Wide Area Base Stations, Local Area Base Stations and Home BS in co-ordinated network operation, unless otherwise stated.

Wide Area Base Stations are characterised by requirements derived from Macro Cell and Micro Cell scenarios with BS to UE coupling losses equal to 70 dB and 53 dB. The Wide Area Base Station has the same requirements as the base station for General Purpose application in Release 99 for 3.84 Mcps option, and in Release 4 for both 3.84 Mcps and 1.28 Mcps option.

Local Area Base Stations are characterised by requirements derived from Pico Cell scenarios with a BS to UE coupling loss equals to 45 dB.

Home Base Stations are characterised by requirements derived from Femto Cell scenarios.

4.3 Regional requirements

Some requirements in TS 25.105 may only apply in certain regions. Table 4.1 lists all requirements that may be applied differently in different regions.

Table 4.1: List of regional requirements.

Clause number	Requirement	Comments
4.2	Base station classes	Only requirements for Wide Area Base Stations shall be applied as regional requirements in Japan.
5.1	General	Only 3.84Mcps and 7.68Mcps TDD options are currently applicable in Japan
5.2	Frequency bands	Some bands may be applied regionally.
6.2.1	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.
6.6.2.1	Spectrum emission mask	The mask specified may be mandatory in certain regions. In other regions this mask may not be applied.
6.6.3.1.1	Spurious emissions (Category A)	These requirements shall be met in cases where Category A limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [1], are applied.
6.6.3.1.2	Spurious emissions (Category B)	These requirements shall be met in cases where Category B limits for spurious emissions, as defined in ITU-R Recommendation SM.329 [1], are applied.
6.6.3.2.1	Co-existence with GSM, DCS, UTRA and /or E-UTRA -Operation in the same geographic area	This requirement may be applied for the protection of other BS or UE receivers when GSM, DCS, UTRA and/or E-UTRA BS are operating in the same geographic area with a UTRA TDD BS.
6.6.3.2.2	Co-existence with GSM, DCS, UTRA, and/or E-UTRA – Co-located base stations	This requirement may be applied for the protection of ohter BS receivers when GSM, DCS, UTRA and/or E-UTRA BS are co-located with a UTRA TDD BS.
6.6.3.5.1	Co-existence with unsynchronized TDD – Operation in the same geographic area	This requirement may be applied for the protection of UTRA-TDD BS receivers in same geographic areas in which unsynchronized TDD is deployed.
6.6.3.5.2	Co-existence with unsynchronized TDD -Co-located base stations	This requirement may be applied for the protection of UTRA-TDD BS receivers when UTRA-TDD BS are unsynchronized co-located.
6.6.3.6	Co-existence with PHS	This requirement may be applied for the protection of PHS in geographic areas in which both PHS and 3.84 Mcps and 7.68 Mcps UTRA TDD are deployed.
7.5	Blocking characteristic	The requirement is applied according to what frequency bands in Clause 5.2 that are supported by the BS.
7.5.1	Blocking characteristic Co-location with GSM900 and/or DCS 1800	This requirement may be applied for the protection of UTRA TDD BS receivers when UTRA TDD BS and GSM 900/DCS1800 BS are co-located.

4.4 Environmental requirements for the BS equipment

The BS equipment shall fulfil all the requirements in the full range of environmental conditions for the relevant environmental class from the relevant IEC specifications listed below:

IEC 60 721-3-3 "Stationary use at weather protected locations" [3]

IEC 60 721-3-4 "Stationary use at non weather protected locations" [4]

Normally it should be sufficient for all tests to be conducted using normal test conditions except where otherwise stated. For guidance on the use of test conditions to be used in order to show compliance refer to TS 25.142 [5].

4.5 MBSFN-only operation

Only relevant sections are applicable to MBSFN-only operation (which also includes IMB [6]). Furthermore, for the case of IMB, only the 3.84Mcps TDD option shall apply. In the case of section 6 this contains subclauses with explicit indication of which requirements are not applicable to MBSFN-only operation.

4.6 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. In the case where multiple bands are mapped on separate antenna connectors, the following applies:

– Single-band transmitter spurious emissions, operating band unwanted emissions, ACLR, transmitter intermodulation and receiver spurious emissions requirements apply to each antenna connector.

– If the BS is configured for single-band operation, single-band requirements shall apply to the 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 BS capable of multi-band operation, the RF requirements in the present specification assume synchronized operation, where no simultaneous uplink and downlink occur between the supported operating bands.