jash 2005-3-2 11:58
GSM 0505--通信人必读
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[sell=20]GSM 0505规范[/sell]
Contents
Foreword ....................... 5
1 Scope.................. 7
1.1 Normative references .......................................................................................................... 7
1.2 Abbr 8
2 Frequency bands and channel arrangement ...................................................................................... 8
3 Reference con 9
4 Transmitter c 9
4.1 Output power ....................................................................................................................... 9
4.1.1 Mobile station.................................................................................................. 9
4.1.2 Base station .................................................................................................. 12
4.2 Output RF spectrum .......................................................................................................... 13
4.2.1 Spectrum due to the modulation and wide band noise ................................. 13
4.2.2 Spectrum due to switching transients ........................................................... 16
4.3 Spurious emissions ........................................................................................................... 17
4.3.1 Principle of the specification ......................................................................... 17
4.3.2 Base Transceiver Station.............................................................................. 18
4.3.3 Mobile Station ............................................................................................... 19
4.4 Radio frequency tolerance................................................................................................. 20
4.5 Output level dynamic operation ......................................................................................... 20
4.5.1 Base Transceiver Station.............................................................................. 20
4.5.2 Mobile Station ............................................................................................... 20
4.6 Phase accuracy ................................................................................................................. 20
4.7 Intermodulation attenuation ............................................................................................... 21
4.7.1 Base transceiver station................................................................................ 21
4.7.2 Intra BTS intermodulation attenuation .......................................................... 21
4.7.3 Intermodulation between MS (DCS 1 800 only)............................................ 21
4.7.4 Mobile PBX (GSM 900 only) ......................................................................... 21
5 Receiver cha 22
5.1 Blocking characteristics..................................................................................................... 22
5.2 AM suppression characteristics......................................................................................... 24
5.3 Intermodulation characteristics.......................................................................................... 24
5.4 Spurious emissions ........................................................................................................... 24
6 Transmitter/receiver performance .................................................................................................... 25
6.1 Nominal Error Rates (NER)............................................................................................... 25
6.2 Reference sensitivity level ................................................................................................. 25
6.3 Reference interference level ............................................................................................. 26
6.4 Erroneous frame indication performance .......................................................................... 26
Annex A (informative): Spectrum characteristics (spectrum due to the modulation).............................. 31
Annex B (normative): Transmitted power level versus time ................................................................. 35
Annex C (normative): Propagation conditions....................................................................................... 36
C.1 Simple wideband propagation model................................................................................................ 36
C.2 Doppler spectrum types .................................................................................................................... 36
C.3 Propagation 37
C.3.1 Typical case for rural area (RAx): (6 tap setting)............................................................... 37
Page 4
Draft prETS 300 910 (GSM 05.05 version 5.4.0): March 1997
C.3.2 Typical case for hilly terrain (HTx): (12 tap setting) ...........................................................37
C.3.3 Typical case for urban area (TUx): (12 tap setting) ...........................................................38
C.3.4 Profile for equalization test (EQx): (6 tap setting) ..............................................................38
Annex D (normative): Environmental conditions ...................................................................................39
D.1 General..............39
D.2 Environmental requirements for the mss ..........................................................................................39
D.2.1 Temperature ......................................................................................................................39
D.2.2 Voltag39
D.2.3 Vibrat40
D.3 Environmental requirements for the BSS equipment ........................................................................40
[[i] 本帖最后由 xxm 于 2007-7-18 12:58 编辑 [/i]]