CDMA2000和WCDMA技术之间的共性Commonalities_CDMA2000_WCDMA_wp

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【文件名】:101212@52RD_CDMA2000和WCDMA技术之间的共性Commonalities_CDMA2000_WCDMA_wp.pdf
【格　式】:pdf
【大　小】:1005K
【简　介】:
【目　录】:Commonalities between CDMA2000
and WCDMA Technologies

Table of Contents

Executive Summary..............................................................................1
[1] Introduction......................................................................................4
[2] Fundamental CDMA Technologies Common to cdmaOne,
CDMA2000 and WCDMA................................................................7
2.1   Key Similarities between cdmaOne, CDMA2000 1X and
WCDMA..................................................................................8
2.1.1   Direct Sequence Spread Spectrum Multiple Access.13
2.1.2   Orthogonal Code Division Multiple Access................15
2.1.3   Power Control............................................................16
2.1.4   Rake Receivers..........................................................16
2.1.5   Speech Regulated Vocoders.....................................18
2.1.6   Soft and Softer Handoff..............................................18
2.1.7   Single Frequency Re-Use..........................................20
[3] New and Evolved Technologies Shared by CDMA2000 and
WCDMA Standards .......................................................................21
3.1   Key Similarities between the CDMA2000 1X and WCDMA
Standards..............................................................................22
3.1.1   Variable Length Orthogonal Codes............................25
3.1.2   Uplink Complex Spreading.........................................26
3.1.3   Dual-Event Downlink Paging.....................................27
3.2   Independent Characteristics of CDMA2000 1X and
WCDMA Standards...............................................................28

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