Defining context identifier in header field compression

Details Defining context identifier in header field compression Defining context identifier in header field compression

2006-05-30

2006-05-30

Jean, Frantz B. (Department: 2151)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data modifying

Compressing/decompressing

Reexamination Certificate

active

07054954

ABSTRACT:
A method for defining a context identifier when compressing header fields of data packets, in which method, a context is defined for a compressor and decompressor of a data packet flow, the context controlling the operation of said compressor and decompressor. The context is identified by a context identifier attached to the data packet and the length of the context identifier is defined by data transfer between the compressor and decompressor in such a manner that the length of the context identifier is defined in the context identifier of the data packet being transmitted. The context identifier comprises a field of at least one bit for defining the length of the context identifier. The length of the context identifier can be defined in the context identifier of each data packet being transmitted.

REFERENCES:
patent: 6300887 (2001-10-01), Le
Robust Header Compression Using Keyword-Packets, Miyazaki et al. Robust Header Compression (RoHC) WG 2000.
“Robust Header Compression Using Keyword-Packets”, Miyazaki et al., Robust Header Compression (RoHC) WG, 2000.
“IP Header Compression”, Degermark et al., Internet Engineering Task Force, 1999.
I“Compressing IP/UDP/RTP Headers for Low-Speed Serial Links”, Casner et al., Internet Engineering Task Force, 1999.
“Robust Header Compression (ROHC)”, Burmeister et al., 2000.

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