Patent ID: 8018945

Claim:
A method of receiving uplink data by a wireless network device, the method comprising: receiving uplink signals using at least one hybrid automatic repeat request (HARQ) entity of a wireless network device; sending, by the wireless network device using at least one HARQ entity, positive acknowledgement messages or negative acknowledgement messages over a downlink signaling channel in response to the received uplink signals; recovering protocol data units (PDUs) by the wireless network device from the received uplink signals; storing the recovered PDUs in at least one reordering buffer of the wireless network device; starting a timer of the wireless network device in response to identifying an out-of-order PDU based on at least sequence numbers of the recovered PDUs; and on a condition that a missing PDU is not recovered before the timer expires, delivering by the wireless network device at least one recovered PDU to higher layers in response to the timer expiring.