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[3G资料] Concept of HSDPA Study

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发表于 2008-11-21 15:06:49 | 显示全部楼层 |阅读模式
HSDPA : High Speed Downlink Packet Access
Increases downlink data rates (up to 14 Mbps)
Improves spectral efficiency for downlink packet data services
Employs both Time Domain Multiplexing (TDM) and Code Domain Multiplexing (CDM)
Reduces transmission latency
Supports multimedia services (packet based): web browsing, movie streaming, interactive games, car-navigation system update, etc


GSM Phase I        Doc. Version 3.X.Y
Original GSM
GSM Phase II        Doc. Version 4.X.Y
DCS1800
Release 96        Doc. Version 5.X.Y
HSCSD
Release 97        Doc. Version 6.X.Y
GPRS
Release 98        Doc. Version
Release 99        Doc. Version 3.X.Y
W-CDMA (FDD and wideband TDD)
Release 4        Doc. Version 4.X.Y
Narrowband TDD (Low Chip Rate – TD-SCDMA)
Release 5        Doc. Version 5.X.Y
High Speed Downlink Packet Access (HSDPA)
Release 6        Doc. Version 6.X.Y
Release 7        Doc. Version 7.X.Y
 楼主| 发表于 2008-11-21 15:09:49 | 显示全部楼层
[em05][em05][em05]自己顶一下喽(*^__^*) 嘻嘻……
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