【網(wǎng)絡(luò)工程】nokia-gsm原理介紹-文庫吧資料
2025-01-26 13:15本頁面
【正文】 e r i o d 3 . 6 9 2 u sM o d u l a t i o n 0 . 3 G M S KC h a n n e l S p a c i n g 2 0 0 K H zT D M A M u x 8M S M a x P o w e r 2 0 W ( 8 W i s 8W 8W 1W 1Wm a x i n u s e )M S M i n P o w e r 1 3 d B m 5 d B m 4 d B m 0 d B m 0 d B mM S P o w e r 5 t o 1 9 0 t o 1 5 0 t o 1 5 3 0 , 3 1 , 0 t o 1 5C o n t r o l S t e p sV o i c e C o d e r B i t 1 3 k b i t / s 1 3 k b i t / s 1 3 k b i t / s 1 3 k b i t / s 1 3 k b i t / sR a t e 6 . 5 k b i t / s 6 . 5 k b i t / sGSM900/DCS1800/PCS1900 GSM Frequency Range ? 890 915 MHz Uplink / MS Transmit ? 935 960 MHz Downlink / BS Transmit ? Duplex Offset 45 MHz ? Channel Spacing 200kHz ? Channel numbering 1 124 ? Transmission Speed 270 Kbits DCS1800 Frequency Range ? 1710 1785 MHz Uplink / MS Transmit ? 1805 1880 MHz Downlink / BS Transmit ? Duplex Offset 95 MHz ? Channel Spacing 200kHz ? Channel numbering 512 885 ? Transmission Speed 270 Kbits GSM Primary Band 890 900 910 920 930 940 950 960 Freq 45 MHz Uplink ( Mobile to Base ) Downlink ( Base to Mobile ) DCS1800 Primary Band 1710 1735 1760 1785 1800 1825 1850 1875 Freq 95 MHz Uplink ( Mobile to Base ) Downlink ( Base to Mobile ) Carriers at the border of the GSM band Freq GSM band 200 kHz Carriers at the border of the DCS1800 band Freq DCS1800 band 200 kHz GSM Networks BSC BTS BTS BTS BSS BSC BTS BTS BTS BSS MSC MSC OMC OMC ADC NMC VLR VLR HLR AUC EIR Interface to other work MS GSM Networks Terminology: MS Mobile Station (移動臺 ) BSS Base Station System (基站系統(tǒng) ) BTS Base Transceiver Station (基站收發(fā)臺 ) BSC Base Station Controller (基站控制器 ) MSC Mobile Switching Centre (移動業(yè)務(wù)交換中心 ) OMC Operations and Maintenance Centre (操作與維護中心 ) NMC Network Management Centre (網(wǎng)絡(luò)管理中心 ) AUC A
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