Patent ID: 8737322

Claim:
A method of exchanging data between a first station and a second station, said data being exchanged in packets, said method comprising the steps of: receiving a packet from the second station; decoding said packet; determining whether to transmit to the second station a resource allocation message on a signalling channel based on said decoding of said packet not being successful; determining whether a transmission from the second station to the first station is one of adaptive and non-adaptive based on said decoding said packet not being successful; transmitting to the second station a first indicator signal on an indicator channel and transmitting said resource allocation message on said signaling channel when said transmission from the second station to the first station is determined to be adaptive, wherein said resource allocation message allocates new transmission parameters to said second station; and transmitting to the second station a second indicator signal on the indicator channel when said transmission from the second station to the first station is determined to be non-adaptive, wherein said second indicator represents both that the decoding of said packet has not been successful and that said resource allocation message is not transmitted.