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On TPC decoding during soft handover in WCDMA

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Author

Summary, in English

It has been shown in field trials as well as in system simulations that the overall system performance heavily depends on good TPC decoding in the mobile terminals during soft handover in VVCDMA. In this paper we show criteria on the TPC decoding performance in soft handover in the mobile terminal in order to have a stable up-link power control loop in WCDMA. We also show that the traditional "OR"combination of TPC commands without reliable detection gives rise to an unstable up-link power control. In the paper we examine, by simulation experiments assuming realistic terminal SIR estimation, how the TPC reliable thresholds should be chosen in the terminal such that optimized up-link performance could be achieved

Publishing year

2005

Language

English

Pages

1609-1613

Publication/Series

2005 IEEE 61st Vehicular Technology Conference. VTC2005- Spring (IEEE Cat. No. 05CH37631)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Probability Theory and Statistics
  • Control Engineering

Keywords

  • transmit power control decoding
  • SIR estimation
  • power control loop
  • mobile terminals
  • TPC decoding
  • soft handover
  • WCDMA

Conference name

IEEE Vehicular Technology Conference -VTC Spring, 2005

Conference date

2005-05-30 - 2005-06-01

Conference place

Stockholm, Sweden

Status

Published

ISBN/ISSN/Other

  • ISBN: 0-7803-8887-9