Method to reduce the number of bits per soft bit

Details Method to reduce the number of bits per soft bit Method to reduce the number of bits per soft bit

2007-08-21

2007-08-21

Tran, Khanh (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

10274916

ABSTRACT:
A method and apparatus for reducing an amount of bits of data at at least two stages of data transfer in a communications reception data path between a rake receiver and a channel decoder.

REFERENCES:
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patent: 6615386 (2003-09-01), Yano et al.
patent: 2002/0018527 (2002-02-01), Vanderaar et al.
patent: 2002/0067780 (2002-06-01), Razzell
patent: 2002/0154704 (2002-10-01), Reshef
patent: 2002/0181432 (2002-12-01), Wang et al.
patent: 2004/0203987 (2004-10-01), Butala
Tan et al., “Soft-Decisions in Multistage RAKE Receiver in 3GPP implementation”, Military Communications Conference, Milcom 2002 Proceedings, Anaheim CA Oct. 7-10, 2002, IEEE Military Communications Conference, New York, NY, IEEE US vol. 1 of 2, Oct. 2002, pp. 1344-1349.
Lee et al., “Normalization, Windowing and Quantization of Soft-Decision Viterbi Decoder Inputs in CDMA Systems”, Vehicular Technology Conference, 1999, IEEE US, pp. 221-225.

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