3GPP TS 25.213

ht1688

3rd Generation Partnership Project;
Technical Specification Group Radio Access Network;
Spreading and modulation (FDD)
(Release 9)

The present document describes spreading and modulation for UTRA Physical Layer FDD mode.

1 Scope .................................................................................................................................................. 6
2 References .......................................................................................................................................... 6
3 Symbols, abbreviations and definitions ............................................................................................... 6
3.1 Symbols ....................................................................................................................................................... 6
3.2 Abbreviations............................................................................................................................................... 6
3.3 Definitions ................................................................................................................................................... 7
4 Uplink spreading and modulation ........................................................................................................ 7
4.1 Overview ..................................................................................................................................................... 7
4.2 Spreading ..................................................................................................................................................... 8
4.2.1 Dedicated physical channels.................................................................................................................... 8
4.2.1.1 DPCCH/DPDCH .................................................................................................................................... 9
4.2.1.2 HS-DPCCH..................................................................................................................................... 11
4.2.1.3 E-DPDCH/E-DPCCH ...................................................................................................................... 12
4.2.2 PRACH ................................................................................................................................................ 18
4.2.2.1 PRACH preamble part ..................................................................................................................... 18
4.2.2.2 PRACH message part ...................................................................................................................... 18
4.2.3 Void ..................................................................................................................................................... 19
4.3 Code generation and allocation ................................................................................................................... 19
4.3.1 Channelisation codes ............................................................................................................................ 19
4.3.1.1 Code definition ................................................................................................................................ 19
4.3.1.2 Code allocation for dedicated physical channels ............................................................................... 20
4.3.1.2.1 Code allocation for DPCCH/DPDCH ......................................................................................... 20
4.3.1.2.2 Code allocation for HS-DPCCH ................................................................................................. 20
4.3.1.2.3 Code allocation for E-DPCCH/E-DPDCH .................................................................................. 20
4.3.1.3 Code allocation for PRACH message part ........................................................................................ 21
4.3.1.4 Void ................................................................................................................................................ 21
4.3.1.5 Void ................................................................................................................................................ 21
4.3.2 Scrambling codes .................................................................................................................................. 21
4.3.2.1 General ........................................................................................................................................... 21
4.3.2.2 Long scrambling sequence ............................................................................................................... 21
4.3.2.3 Short scrambling sequence .............................................................................................................. 22
4.3.2.4 Dedicated physical channels scrambling code .................................................................................. 23
4.3.2.5 PRACH message part scrambling code ............................................................................................ 24
4.3.2.6 Void ................................................................................................................................................ 24
4.3.2.7 Void ................................................................................................................................................ 24
4.3.3 PRACH preamble codes ....................................................................................................................... 24
4.3.3.1 Preamble code construction ............................................................................................................. 24
4.3.3.2 Preamble scrambling code ............................................................................................................... 24
4.3.3.3 Preamble signature .......................................................................................................................... 24
4.3.4 Void ..................................................................................................................................................... 25
4.4 Modulation ................................................................................................................................................ 25
4.4.1 Modulating chip rate ............................................................................................................................. 25
4.4.2 Modulation ........................................................................................................................................... 25
5 Downlink spreading and modulation ................................................................................................. 26
5.1 Spreading ................................................................................................................................................... 26
5.1.1 Modulation mapper ............................................................................................................................... 26
5.1.1.1 QPSK .............................................................................................................................................. 26
5.1.1.2 16QAM ........................................................................................................................................... 27
5.1.1.3 64QAM ........................................................................................................................................... 27
5.1.2 Channelisation ...................................................................................................................................... 28
5.1.3 IQ combining ....................................................................................................................................... 28
5.1.4 Scrambling ........................................................................................................................................... 28
5.1.5 Channel combining ............................................................................................................................... 28
5.2 Code generation and allocation ................................................................................................................... 29
5.2.1 Channelisation codes ............................................................................................................................ 29
5.2.2 Scrambling code ................................................................................................................................... 30
5.2.3 Synchronisation codes .......................................................................................................................... 31
5.2.3.1 Code generation .............................................................................................................................. 31
5.2.3.2 Code allocation of SSC .................................................................................................................... 32
5.3 Modulation ................................................................................................................................................ 34
5.3.1 Modulating chip rate ............................................................................................................................. 34
5.3.2 Modulation ........................................................................................................................................... 34

ht1688

Sorry.  First time mistake.

mtwumtwu

part three !!!

kingweison

怎么分啊

chujn

下来看看，谢谢。