Patent ID: 7289464

Claim:
A method comprising: establishing a wireless communication link between a mobile station and a base station; generating a compressed version of the session initiation protocol message; transmitting the compressed version of the session initiation protocol message over the communication link; and decompressing the compressed version of the session initiation protocol message; wherein compressing the session initiation protocol message comprises, for each of a plurality of portions of the session initiation protocol message, each portion of the session initiation protocol message containing a static component and a variable component, identifying a format of the static component, selecting a token corresponding to the identified format, and generating a compressed version of the portion of the session initiation protocol message containing the token corresponding to the static component and data corresponding to the variable component, and concatenating the plurality of compressed versions of the portions of the session initiation protocol message; and wherein decompressing the compressed version of the session initiation protocol message comprises, for each of the plurality of portions of the compressed version of the session initiation protocol message, identifying the token, and reconstructing the corresponding portion of the session initiation protocol message based on the token and the data corresponding to the variable component, and concatenating the plurality of reconstructed portions of the session initiation protocol message.