Method for retransmission of lost packet in fading channels

Details Method for retransmission of lost packet in fading channels Method for retransmission of lost packet in fading channels

2006-06-27

2006-06-27

Lamarre, Guy J. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C370S335000, C370S394000, C370S428000, C370S216000

Reexamination Certificate

active

07069490

ABSTRACT:
A method of retransmitting of a lost packet in a mobile communication system in which multiple copies plus delays occur i.e. after a transmitter has received from a receiver a negative acknowledgement (NACK) signal, which points to a specific data packet, multiple copies of the specific data packet are retransmitted with a delay, which is inserted between two consecutive copies. The number of multiple copies can be acquired by a linear or exponential calculation according to the current number of retransmission. The specific retransmission method may be the interleaving transmission method, which transmits a retransmission queue in the interleaving retransmission interval; or the multiple queues polling transmission method, which transmits the retransmission queue by copy queues sequence. In the correlated fading channels, the method of the present invention can decrease the number of retransmissions, and at the same time it can increase efficiency of each retransmission.

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