Apparatus and method for asynchronous and adaptive hybrid ARQ scheme in a wireless network

摘要

A low overhead asynchronous and adaptive Hybrid Acknowledgment Request (HARQ) technique for use in wireless networks. First control information is transmitted with the first subpacket and subsequent control information is transmitted with transmissions of subsequent subpackets only if the retransmission is done asynchronously or if the duration of the retransmission is changed.

主权项

1. For use in a wireless communication network, a base station capable of communicating with a plurality of subscriber stations, the base station comprising:
a transmitter configured to transmit a first data packet to a first subscriber station, wherein the transmitter transmits the first data packet as a plurality of subpackets distributed in subframes of a downlink channel such that a first subpacket of the first data packet is transmitted in a first subframe and a second subpacket of the first data packet is transmitted in a subsequent subframe, the first subpacket comprising a first control information; wherein the transmitter is configured to transmit in a synchronous mode and an asynchronous mode, and wherein the transmitter is configured to transmit the first subpacket in a first mode comprising the synchronous mode or the asynchronous mode, and transmit the second subpacket in a second mode comprising the synchronous mode or the asynchronous mode, the first mode and the second mode different from one another; wherein the transmitter is configured to include a second control information in the second subpacket only if a change in a transmission parameter has occurred; and wherein the transmission parameter is selected from one or more of modulation, coding, and transmission duration.