Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Patent
1998-03-10
2000-10-24
Baker, Stephen M.
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
714795, H03M 1329, H03M 1341, H04L 116
Patent
active
061382604
ABSTRACT:
A "hybrid" ARQ system within a multiple access wireless communications environment is provided for recombining ARQ retransmission signals with information obtained from corresponding previously failed transmissions of the same signal which had been sent and received within the air interface. Forward Error Correction (FEC) is implemented within an ARQ environment by using whatever acquired information has been previously obtained from Rake processed transmitted and retransmitted signals and trying to correct the information by combining the signals and without retransmission. In a second preferred embodiment of the present invention, Turbo encoded transmitted information is only partially re-transmitted by the transmitter in order to achieve a successful transmission.
REFERENCES:
patent: 5907582 (1999-05-01), Yi
Narayanan et al., "A Novel ARQ Technique using the Turbo Coding Principle", IEE Communications Letters, vol. 1, No. 2, Mar. 1997, pp. 49-51.
Narayanan et al., "Physical Layer Design for Packet Data over IS-136", IEEE 47th Vehicular Technology Conference, May 4-7, 1997, pp. 1029-1033.
Baker Stephen M.
Conexant Systems Inc.
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