Patent ID: 6680955
Filing Date: 2004-01-20
Classification: H04L

Abstract:
A method of transmitting in a network between a source and a receiver a current header field of a current packet using a timer-based compression technique, comprising:providing from a compressor to a decompressor an initial value of a header field; calculating at the compressor a compressed header field of the current packet based on the current header field of the current packet and jitter, wherein said calculating step comprises the steps of: calculating a jitter effect the network between a source and said decompressor has on the transmission of packets, and calculating the compressed header field as a portion of a field value, said portion being a function of jitter; receiving the compressed header field of the current packet at the decompressor; estimating the header field of the current packet based on elapsed time at the decompressor between reception of the compressed header field of the current packet and reception of a header field of a previous packet which was decompressed and a decompressed field value of the previous packet; and correcting the estimated current header field based on the compressed header field received at the decompressor.