Patent ID: 8489950

Claim:
A method, comprising: in response to a discontinuous reception cycle being configured, and in response to a hybrid automatic repeat request round trip time timer for an associated one of n hybrid automatic repeat request processes expiring in a current subframe when data in a corresponding hybrid automatic repeat request buffer is not successfully decoded, determining if a single discontinuous reception retransmission timer has been started, the single discontinuous reception retransmission timer being associated with all n of the hybrid automatic repeat request processes, where n is an integer greater than one; if the single discontinuous reception retransmission timer has not been started, starting the single discontinuous reception retransmission timer and setting an associated expiry timer value to a basic value; and if the single discontinuous reception retransmission timer has been started, automatically updating the expiry timer value by adding an increment value to at least reduce probability of collision among different ones of the n hybrid automatic repeat request processes.