Patent ID: 7116667

Claim:
A method for transmitting layer 2 protocol data units (PDUs) in a wireless communications protocol, the wireless communications protocol utilizing a transmission time interval (TTI) in which a predetermined number of PDUs are transmitted, the method comprising: receiving data from a layer 3 interface; optionally discarding a portion of the data; building a plurality of PDUs from the remaining data; providing each PDU with an n-bit sequence number according to an encoding method, the encoding method comprising: for each PDU, providing the PDU with a sequence number that is greater than the sequence number of an immediately prior PDU by a first predetermined number if no data was discarded between the data held in the PDU and the data held in the immediately prior PDU, and providing the PDU with a sequence number that is greater than the sequence number of the immediately prior PDU by a second predetermined number if data was discarded between the data held in the PDU and the data held in the immediately prior PDU; and providing the PDUs for transmission in the TTI.