Patent ID: 8780812

Claim:
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.