Patent ID: 8483136

Claim:
A method for communicating in a wireless access system using a medium access control protocol data unit (MAC PDU), the method comprising: receiving, by a mobile station (MS) from a base station (BS), a dynamic service addition request (AAI_DSA-REQ) message requesting to create a service flow, wherein the AAI_DSA-REQ message comprises a first MAC header type parameter indicating a type of a MAC header to be included in the MAC PDU of the service flow and a flow identifier (FID) identifying a connection associated with the service flow; transmitting, by the MS to the BS, a dynamic service addition response (AAI_DSA-RSP) message in response to the AAI_DSA-REQ message, wherein the AAI_DSA-RSP message comprises a second MAC header type parameter indicating the type of a MAC header to be included in the MAC PDU of the service flow; and communicating with the BS using the MAC PDU comprising the MAC header indicated by the second MAC header type parameter; wherein the second MAC header type parameter indicates one of a generic MAC header (GMH) for general data packet transmission and a short-packet MAC header (SPMH) for small data packet transmission and a non-ARQ connection, and wherein the SPMH consists of the flow identifier (FID) field identifying the connection used for the transmission of the MAC PDU, an extended header group presence indicator (EH) field indicating whether an extended header group is present following the SPMH, a length field indicating a length in bytes of the MAC PDU including the SPMH and an extended header if present, and a sequence number (SN) field indicating a payload sequence number of the MAC PDU, wherein the SN field increments by one for each MAC PDU, and wherein a size of the FID field is 4 bits, a size of the EH field is 1 bit, a size of the length field is 7 bits, and a size of the SN field is 4 bits, and wherein a total size of the SPMH is 2 bytes.