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APPARATUS AND METHOD FOR ASYNCHRONOUS AND ADAPTIVE HYBRID ARQ SCHEME IN A WIRELESS NETWORK

  • US 20070223404A1
  • Filed: 03/16/2007
  • Published: 09/27/2007
  • Est. Priority Date: 03/24/2006
  • Status: Active Grant
First Claim
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1. For use in a wireless network that communicates with a plurality of subscriber stations, a base station for communicating with a first subscriber station using an adaptable asynchronous hybrid acknowledge request (HARQ) technique in which the base station transmits an original data packet to the first subscriber station as a plurality of subpackets distributed in subframes of a downlink channel and the first subscriber station transmits one of an ACK message and a NACK message in an uplink channel in response to each of the plurality of subpackets, wherein the base station transmits to the first subscriber station a first subpacket and first control information in a first subframe and transmits a subsequent second subpacket to the first subscriber station in one of synchronous mode and asynchronous mode, wherein the base station transmits in synchronous mode by transmitting subsequent subpackets in synchronous subframes after the first subframe and transmits the subsequent second subpacket without additional control information in a synchronous second subframe occurring N subframes after the first subframe, and wherein the base station transmits in asynchronous mode by transmitting the subsequent second subpacket and second control information in an asynchronous second subframe occurring after the first subframe.

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