Patent ID: 8135446

Claim:
A method for managing a sleep cycle in a mobile terminal, and the method comprising: entering, by the mobile terminal, a listening window of the sleep cycle; remaining in the listening window while an Advanced Mobile Station (AMS) timer maintained by the mobile terminal has not expired, while a Hybrid Automatic Repeat Request (HARQ) Downlink (DL) Retransmission timer has not expired, while a maximum number of Uplink (UL) retransmissions has not been reached, while UL traffic from the mobile station is pending for transmission, or while a default listening window has not expired and no negative traffic indication has been received from a base station; and transitioning, by the mobile terminal, from the listening window to a sleep window of the sleep cycle when the mobile terminal receives a negative traffic indication from the base station or when the AMS timer, the HARQ DL Retransmission timer, a HARQ DL Gap timer, and a HARQ UL Gap timer have all expired, wherein the mobile terminal does not transmit or receive data to or from the base station while operating in the sleep window.