WCDMA and CDMA2000 Comparison

SUMMARY................................................................................................................................ 1

Table of Contents......................................................................................................................... 2

Introduction.................................................................................................................................. 3

Major Conceptual Similarities........................................................................................................ 3

Major Differences........................................................................................................................ 3

Chip Rate................................................................................................................................. 4

Migration from existing technologies....................................................................................... 4

Numerology.......................................................................................................................... 4

Eb/No Requirement............................................................................................................... 4

Overall Capacity................................................................................................................... 5

Out of Band Emissions.......................................................................................................... 5

Summary of Chip Rate Comparison........................................................................................ 6

Forward Link Pilot Structure...................................................................................................... 6

Basic Fundamental Approaches............................................................................................. 6

Dedicated Time Multiplexed Pilot (DTMP)............................................................................. 6

Common Code Multiplexed Pilot (CCMP)............................................................................... 7

Base Station Synchronization..................................................................................................... 8

Base Station Acquisition and Detection................................................................................... 9

Terminal Battery Life Characteristics......................................................................................... 9

Dedicated Mode.................................................................................................................. 10

Idle Mode........................................................................................................................... 10

Inter-Frequency Hard Handoff and Hierarchical Cell Structure (HCS)....................................... 11

Frame Length......................................................................................................................... 11

Differences in Deployment Possibilities........................................................................................ 12

Benefits of 1.25 MHz Deployment Option................................................................................ 13

Deployment in 2x 5 MHz..................................................................................................... 13

Band Packing and Band Planning......................................................................................... 13

Benefits of Multi-Carrier Spreading Option............................................................................... 14

Appendix 1 – Numerology........................................................................................................... 16

Appendix 2 - Overall Capacity..................................................................................................... 18

Appendix 3 - Emission Limits....................................................................................................... 21

Filter Characteristics............................................................................................................... 21

Output Power Level................................................................................................................ 21

Impact on Forward Link Capacity......................................................................................... 23

Appendix 4 – cdma2000 Inter-frequency Hard Handoff procedures............................................... 26

Inter-frequency Search Procedure........................................................................................... 26

Minimizing Impact of Search Excursion on Current Frame......................................................... 27

Off-Line Pilot Searching...................................................................................................... 27

Increasing Symbol Energy of Current Frame......................................................................... 27

Forward Link Power Control during Search Visit................................................................... 27

Reverse Link Power Control during Search Visit................................................................... 28

Search excursion position within a frame.................................................................................. 29

Hard Handoff Failure Recovery........................................................................................... 29

References................................................................................................................................. 30