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TS 11.21














Base Station System (BSS) equipment specification – Radio aspects

(P) GSM Rel-99 v8.11.0    2009/06    161 p.
(P) GSM Rel-98 v7.5.0    2003/06    142 p.

Descendant(s):  TS 51.021    

This TS specifies the Radio Frequency (RF) test methods and conformance requirements for GSM 400, GSM 900 and DCS 1800, PCS 1900, GSM 850, MXM 850 and MXM 1900 Base Station Systems (BSS)s. These have been derived from, and are consistent with, the core GSM specifications specified in the requirements reference subclause of each test with the exception that requirements expressed as a reference to regulatory documents (e.g. FCC) have not been included in this TS.

This TS is applicable to BSS meeting the requirements of either GSM Phase 2 or GSM Phase 2+. Unless otherwise stated, all tests are applicable to BSS meeting Phase 2 and/or Phase 2+ GSM requirements, because the requirements of the Phase 2 and Phase 2+ core GSM specifications which are referenced in the test are consistent. Most differences between Phase 2 and Phase 2+ requirements represent Phase 2+ features which are optional for the BSS to support.

1   Scope   PDF-p. 9
2   References   PDF-p. 10
3   Definitions, abbreviations, frequency bands and channels   PDF-p. 11
4   General test conditions and declarations
5   Format and interpretation of tests      Up
6   Transmitter   PDF-p. 25
6.1   Static Layer 1 functions
6.2   Modulation accuracy
6.3   Mean transmitted RF carrier power
6.4   Transmitted RF carrier power versus time      Up
6.5   Adjacent channel power
6.6   Spurious emissions from the transmitter antenna connector
6.7   Intermodulation attenuation (GSM 400, GSM 900 and DCS 1800)      Up
6.8   Intra Base Station System intermodulation attenuation
6.9   Intra Base Station System intermodulation attenuation, MXM 850 and MXM 1900
6.10   Intra Base Station System intermodulation attenuation, PCS 1900 and GSM 850      Up
6.11   Intermodulation attenuation (GSM 850, MXM 850, PCS 1900 and MXM 1900)
7   Receivers
7.1   Static Layer 1 receiver functions (nominal error ratios)
7.2   Erroneous Frame Indication Performance
7.3   Static Reference Sensitivity Level
7.4   Multipath Reference Sensitivity Level   PDF-p. 63
7.5   Reference interference level
7.6   Blocking Characteristics
7.7   Intermodulation characteristics
7.8   AM suppression
7.9   Spurious emissions from the receiver antenna connector
8   Radiated spurious emissions
9   Radio link management
9.1   General
9.2   Synchronization
9.3   Frame structure
9.4   Radio link measurements
9.5   Adaptive frame alignment
A   Testing of statistical parameters   PDF-p. 106
B   Description of special test equipment   PDF-p. 112
C   Number of samples needed for statistical testing   PDF-p. 115
D   Change history   PDF-p. 157