Patent ID: 7616639

Claim:
A receiver for receiving a control protocol data unit in a receiving side of a wireless communication system, the receiver comprising: means for receiving the control protocol data unit having processing time information associated with the control data unit in a radio link control module; and means for processing the control protocol data unit according to the processing time information, wherein the processing time information indicates when to process the control protocol data unit by the receiving side, wherein the processing time information comprises a sequence number associated with a data unit transmitted sequentially with the control protocol data unit from a transmitting side to the receiving side, wherein the radio link control module processes the control protocol data unit after processing a data unit having the same sequence number included in the processing time information of the control protocol data unit or the radio link control module processes the control protocol data unit after processing a data unit having a sequence number that is one smaller than the sequence number included in the processing time information of the control protocol data unit, wherein the radio link control module is operated in an acknowledged mode (AM) and an instruction is received from an upper layer indicating to the radio link control module whether to include the processing time information in the control protocol data unit, wherein the processing time information is positioned in a super field of the control protocol data unit such that the processing time information is flexibly positioned within at least one of a status protocol data unit, a piggybacked status protocol data unit, a reset protocol data unit, and a reset acknowledgment protocol data unit, wherein information in the processing time information other than the sequence number is also used to indicate when to process the control protocol data unit, wherein the super field of the control protocol data unit comprises a type field, a length field, and a value field, and wherein a new value referring to the processing time information is indicated in the type field of the super field and the processing time information is indicated in the value field of the super field.