METHOD AND APPARATUS FOR INCREASED INTERNET PROTOCOL (IP) HEADERS COMPRESSION PERFORMANCE BY REPORTING CAUSE OF MISSING PACKETS

摘要

A decompressor, a compressor and methods in an Internet Protocol (IP) networ k for reporting cause of missing packets. A cause of unsuccessful reception or sending of a compressed packet addressed is reported to a compressor / decompressor node. The compressor / decompressor node decides or predicts if a decompression context associated with the decompressor is invalidated by analyzing the cause of the unsuccessful reception and, optionally, analyzing a re- initialization agreement between the compressor and the decompressor. In an optional embodiment of the present invention, the compressor / decompressor node use the decisio n or prediction to exchange information to reinitialize the decompression context associated wi th the decompressor. In a preferable embodiment of the present invention, the detection of the unsuccessful sending or reception is performed at a Medium Access(MAC) layer associated with the compressor / decompressor node.