【資料名稱】：Spreading and modulation (FDD)

【資料作者】：3GPP

【資料日期】：200503

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Contents
Intellectual Property Rights ...............................................................................................................................2
Foreword............................................................................................................................................................2
Foreword............................................................................................................................................................5
1 Scope.......................................................................................................................................................6
2 References ...............................................................................................................................................6
3 Symbols and abbreviations......................................................................................................................6
3.1 Symbols.............................................................................................................................................................6
3.2 Abbreviations ....................................................................................................................................................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 .........................................................................................................................................8
4.2.1.2 HS-DPCCH..........................................................................................................................................10
4.2.1.3 E-DPDCH/E-DPCCH ...........................................................................................................................11
4.2.2 PRACH......................................................................................................................................................12
4.2.2.1 PRACH preamble part ..........................................................................................................................12
4.2.2.2 PRACH message part...........................................................................................................................12
4.2.3 PCPCH.......................................................................................................................................................13
4.2.3.1 PCPCH preamble part ...........................................................................................................................13
4.2.3.2 PCPCH message part ............................................................................................................................13
4.3 Code generation and allocation ........................................................................................................................14
4.3.1 Channelisation codes .................................................................................................................................14
4.3.1.1 Code definition.....................................................................................................................................14
4.3.1.2 Code allocation for dedicated physical channels...................................................................................15
4.3.1.2.1 Code allocation for DPCCH/DPDCH .............................................................................................15
4.3.1.2.2 Code allocation for HS-DPCCH......................................................................................................15
4.3.1.2.3 Code allocation for E-DPCCH/E-DPDCH......................................................................................15
4.3.1.3 Code allocation for PRACH message part ............................................................................................16
4.3.1.4 Code allocation for PCPCH message part.............................................................................................16
4.3.1.5 Channelisation code for PCPCH power control preamble ...................................................................16
4.3.2 Scrambling codes.......................................................................................................................................16
4.3.2.1 General .................................................................................................................................................16
4.3.2.2 Long scrambling sequence ....................................................................................................................16
4.3.2.3 Short scrambling sequence....................................................................................................................18
4.3.2.4 Dedicated physical channels scrambling code ......................................................................................19
4.3.2.5 PRACH message part scrambling code.................................................................................................19
4.3.2.6 PCPCH message part scrambling code .................................................................................................19
4.3.2.7 PCPCH power control preamble scrambling code................................................................................20
4.3.3 PRACH preamble codes .............................................................................................................................20
4.3.3.1 Preamble code construction ..................................................................................................................20
4.3.3.2 Preamble scrambling code ....................................................................................................................20
4.3.3.3 Preamble signature ...............................................................................................................................20
4.3.4 PCPCH preamble codes.............................................................................................................................21
4.3.4.1 Access preamble ..................................................................................................................................21
4.3.4.1.1 Access preamble code construction.................................................................................................21
4.3.4.1.2 Access preamble scrambling code...................................................................................................21
4.3.4.1.3 Access preamble signature ..............................................................................................................22
4.3.4.2 CD preamble ........................................................................................................................................22
4.3.4.2.1 CD preamble code construction ......................................................................................................22
4.3.4.2.2 CD preamble scrambling code ........................................................................................................22
4.3.4.2.3 CD preamble signature ....................................................................................................................22
4.4 Modulation ......................................................................................................................................................22
ETSI
3GPP TS 25.213 version 6.2.0 Release 6 4 ETSI TS 125 213 V6.2.0 (2005-03)
4.4.1 Modulating chip rate..................................................................................................................................22
4.4.2 Modulation.................................................................................................................................................22
5 Downlink spreading and modulation .....................................................................................................23
5.1 Spreading.........................................................................................................................................................23
5.1.1 Modulation mapper....................................................................................................................................23
5.1.1.1 QPSK ...................................................................................................................................................24
5.1.1.2 16QAM................................................................................................................................................24
5.1.2 Channelisation ...........................................................................................................................................24
5.1.3 IQ combining .............................................................................................................................................25
5.1.4 Scrambling.................................................................................................................................................25
5.1.5 Channel combining ....................................................................................................................................25
5.2 Code generation and allocation ........................................................................................................................25
5.2.1 Channelisation codes .................................................................................................................................25
5.2.2 Scrambling code ........................................................................................................................................26
5.2.3 Synchronisation codes ...............................................................................................................................28
5.2.3.1 Code generation ...................................................................................................................................28
5.2.3.2 Code allocation of SSC.........................................................................................................................29
5.3 Modulation ......................................................................................................................................................31
5.3.1 Modulating chip rate..................................................................................................................................31
5.3.2 Modulation.................................................................................................................................................31
Annex A (informative): Generalised Hierarchical Golay Sequences.................................................32
A.1 Alternative generation ............................................................................................................................32
Annex B (informative): Change history ...............................................................................................33
History .............................................................................................................................................................35
25213v060200p.pdf (287.01 KB)