United States Patent 7,895,494
Terry , et al. February 22, 2011
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Method and system for implementing H-ARQ-assisted ARQ operation
Abstract
A method and system for implementing hybrid automatic repeat request (H-ARQ)-assisted automatic repeat request (ARQ) in a wireless communication system are disclosed. When an H-ARQ negative acknowledgement (NACK)-to-positive acknowledgement (ACK) error occurs, the H-ARQ receiver sends an H-ARQ NACK-to-ACK error indicator to the H-ARQ transmitter unless a maximum retransmission limit has reached, a maximum time for delivery has expired or a lifespan of the failed packet has expired. The H-ARQ transmitter sends a local NACK to the ARQ transmitter so that the failed packet is recovered at an ARQ level. The H-ARQ receiver sends a local NACK to the ARQ receiver if the H-ARQ receiver does not receive the failed packet before certain conditions occur. The ARQ receiver may send a status report to the ARQ transmitter for recovery of the failed packet.
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Inventors: Terry; Stephen E. (Northport, NY), Chandra; Arty (Manhasset Hills, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/614,764
Filed: December 21, 2006
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
60754713 Dec., 2005
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Current U.S. Class: 714/748
Current International Class: H04L 1/18 (20060101); G08C 25/02 (20060101)
Field of Search: 714/748-749 370/428,473,743
PPP
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