文档介绍：CWTS
TS C104 1999-10
Technical Specification
China Wireless munication Standard (CWTS);
Working Group 1 (WG1);
Spreading and modulation
INTELLECTUAL PROPERTY RIGHTS 3
FOREWORD 3
1 SCOPE 3
2 REFERENCES 3
3 DEFINITIONS, SYMBOLS AND ABBREVIATIONS 4
Definitions 4
Symbols 4
Abbreviations 4
4 GENERAL 4
5 DATA MODULATION 5
Symbol rate 5
Mapping of bits onto signal point constellation 5
Pulse shape filtering 5
6 SPREADING MODULATION 6
Basic spreading parameters 6
Spreading codes 6
Scramble codes 7
7. GENERATION OF SYNCHRONISATION CODES 7
SYNC 7
SYNC1 9
Annex A: Scramble Codes 9
Annex B: SYNC Codes 10
Annex C: SYNC1 Codes 11
HISTORY 13
Intellectual Property Rights
Foreword
This Technical Specification (TS) has been produced by CWTS working group 1(CWTS WG1).The contents of this TS are subject to continuing work within CWTS WG1 and may change following formal TSG approval.
1 Scope
This document establishes the characteristics of the spreading and modulation in the TD-SCDMA mode. The main objectives of the document are to be a part of the full description of the Layer 1, and to serve as a basis for the drafting of the actual technical specification (TS).
<Editor’s note: The content has to be reviewed according to the TD-SCDMA rules. >
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, subsequent revisions do apply.
A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number.
CWTS TS C101()
CWTS TS C102()
CWTS TS C105()
3 Definitions, symbols and abbreviations
Definitions
For the purposes of the pre