Patent ID: 8780873

Claim:
A method for transmitting a Media Access Control (MAC) Protocol Data Unit (PDU) at a transmitter in a wireless access system, the method comprising: constructing a MAC PDU including a Generic MAC Header (GMH) with a first length field, an extended header with a second length field, and payload; and transmitting the MAC PDU to a receiver, wherein a size of the first length is 11 bits, wherein the second length field is 3 bits long, wherein the first length field indicates a normal length in bytes of the MAC PDU that is represented by the 11 bits, and a combination of the first length field and the second length field used to indicate the extended length of the MAC PDU along with the first length field when the extended length of the MAC PDU is more than 2048 bytes, and wherein the second length field is appended to the first length field to indicate a total length of the MAC PDU.