Bit reliability equalization by modulation switching for HARQ

Details Bit reliability equalization by modulation switching for HARQ Bit reliability equalization by modulation switching for HARQ

2011-08-16

2011-08-16

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Transmitters

Quadrature amplitude modulation

C714S748000

Reexamination Certificate

active

08000410

ABSTRACT:
A method is disclosed for digital data transmission using higher order modulation schemes, wherein a plurality of bits is mapped to bit positions of a symbol and the transmission has different error probabilities for at least two out of said bit positions. A data bit is mapped to a bit position in a first modulation scheme and transmitted in a symbol on the mapped bit position of the first modulation scheme. When a request is received from a receiver, for re-transmission of a data block containing this data bit, a decision is made about a re-transmission of said bit, based on a reliability of the bit position in the first transmission, and if it is decided to retransmit the bit, the data bit is mapped to a bit position of a second modulation scheme and retransmitted in a symbol on the mapped bit position of the second modulation scheme.

REFERENCES:
patent: 7093178 (2006-08-01), Kim et al.
patent: 7280606 (2007-10-01), Kim et al.
patent: 2003/0007476 (2003-01-01), Kim et al.
patent: 2003/0021240 (2003-01-01), Moon et al.
patent: 2003/0072292 (2003-04-01), Yoon
patent: 2003/0081690 (2003-05-01), Kim
patent: 2003/0097629 (2003-05-01), Moon
patent: 2003/0120990 (2003-06-01), Elbwart et al.
patent: 2007/0030836 (2007-02-01), Suh et al.
patent: 2008/0101281 (2008-05-01), Harris et al.
patent: 1 313 247 (2003-05-01), None
patent: 1 293 059 (2004-03-01), None
patent: 2003-101520 (2003-04-01), None
patent: 2003-198503 (2003-07-01), None
patent: 2003-229813 (2003-08-01), None
3GPP TS 25.308 V5.3.0 (Dec. 2002) Technical Specification “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; High Speed Downlink Packet Access (HSDPA); Overall description; Stage 2 (Release 5),” Dec. 2002, pp. 1-29.
3GPP TS 25.212 V5.3.0 (Dec. 2002) Technical Specification, “3rd Generation Partnership Project Technical Specification Group Radio Access Network; Multiplexing and channel coding (FDD) (Release 5),” Dec. 2002, pp. 1-74.
3GPP TSGR1#21 R1-01-0780, “Selective Transmission for Partial Soft Combining,” TSG-RAN Working Group 1 Meeting #20, Turin, Italy, Jun. 27-Aug. 31, 2001, pp. 1-7.
3GPP TSGR1#20 R1-01-0543, “Partial Chase Combining for Code Management,” TSG-RAN Working Group 1 Meeting #21, Busan, Korea, May 21-25, 2001, pp. 1-8.
Wengerter, C, et al., “Advanced Hybrid ARQ Technique Employing a Signal Constellation Rearrangement,” IEEE VTC 2002 Fall, Sep. 2002, vol. 4, pp. 2002-2006.
Japanese Notice of Reasons for Rejection dated Oct. 19, 2010.
English translation of Japanese Office Action dated Mar. 1, 2011.

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