| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for handling packet discard in a wireless communication system. SOLUTION: The method includes: activating a "use of a special value of a header extension field" mode; discarding a plurality of service data units (SDUs); indicating an ending position of the last SDU of the plurality of SDUs using the special value in a header extension field for a first protocol data unit (PDU); and setting a value of a field to be a sequence number of a second PDU. In a case where the special value of the header extension field is used for the PDU, data follow the special header extension bit field and a last octet of the PDU indicates a last octet of the SDU. The field is utilized for indicating a receiver to discard all not yet successfully received SDUs that have segments with sequence number being less than the value of the field, and the second PDU is next to the first PDU. COPYRIGHT: (C)2009,JPO&INPIT
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