Patent ID: 8340128

Claim:
A method for parsing Media Access Control Service Data Units (MAC SDUs) in a Media Access Control Protocol Data Unit (MAC PDU) in a mobile communication system, the method comprising: checking Logical Channel Identifiers (LCIDs) of MAC SDUs multiplexed in a received MAC PDU from a MAC header of the MAC PDU; determining that a last Length Field (LF) related to a last MAC SDU is included in the MAC header and parsing the MAC SDUs from the MAC PDU according to LFs in the MAC header, if a length of the MAC PDU calculated using the MAC header is equal to a known Transport Block (TB) size; and determining that the last LF is not included in the MAC header and parsing the MAC SDUs from the MAC PDU according to LFs in the MAC header and the absent last LF, if the length of the MAC PDU is different from the TB size.