【資料名稱】：TD-SCDMA HSDPA技術(shù)

【資料作者】：不詳

【資料日期】：不詳

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

5.1 TD-SCDMA HSDPA技術(shù)背景.............................................................................................1
5.1.1 HSDPA的技術(shù)發(fā)展的背景........................................................................................1
5.1.2 CCSA N頻點和HSPA規(guī)范的引入...........................................................................1
5.1.3 3GPP TD-SCDMA標(biāo)準(zhǔn)規(guī)范.....................................................................................4
5.2 TD-SCDMA HSDPA關(guān)鍵技術(shù).............................................................................................5
5.2.1 關(guān)鍵技術(shù)概述............................................................................................................5
5.2.2 共享信道...................................................................................................................6
5.2.3 調(diào)制技術(shù)...................................................................................................................7
5.2.4 快速調(diào)度算法............................................................................................................8
5.2.4.1 最大C/I算法.........................................................................................................8
5.2.4.2 輪詢算法RR.........................................................................................................9
5.2.4.3 正比公平算法PF.................................................................................................10
5.2.5 AMC-自適應(yīng)調(diào)制和編碼..........................................................................................10
5.2.5.1 AMC概述............................................................................................................10
5.2.5.2 AMC的控制機制.................................................................................................11
5.2.6 HARQ－混合自動重傳............................................................................................12
5.2.7 多載波HSDPA.......................................................................................................13
5.3 TD-SCDMA HSDPA物理層原理.......................................................................................16
5.3.1 HSDPA協(xié)議結(jié)構(gòu)....................................................................................................16
5.3.2 HSDPA信道...........................................................................................................18
5.3.2.1 HSDPA信道概述................................................................................................18
5.3.2.2 HS-DSCH與HS-PDSCH特點............................................................................19
5.3.2.3 HS-SCCH特點....................................................................................................20
5.3.2.4 HS-SICH特點.....................................................................................................21
5.3.3 HS-DSCH的編碼過程............................................................................................22
5.3.4 HS-SCCH的編碼過程............................................................................................26
5.3.5 HS-SICH的編碼過程..............................................................................................28
5.3.6 HSDPA基本流程....................................................................................................30
5.3.7 編碼和調(diào)制對速率的影響........................................................................................31
5.3.8 資源配置.................................................................................................................32
5.3.9 準(zhǔn)入控制.................................................................................................................33
5.4 HSDPA在TD-SCDMA與WCDMA系統(tǒng)中的差別.............................................................34