Relocating context information in header compression

Details Relocating context information in header compression Relocating context information in header compression

2007-10-30

2007-10-30

Cardone, Jason (Department: 2145)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data modifying

Compressing/decompressing

C370S389000, C370S392000, C370S477000, C341S060000

Reexamination Certificate

active

09757913

ABSTRACT:
A method of relocating the header compression context in a packet network which transmits packets having compressed headers. A connection is established between a mobile terminal and a first network entity and context information used with compression and decompression of the headers of the packets is stored at the mobile terminal and the first network entity. The context information updating is stopped in the mobile terminal and in the first network entity and after that, a snapshot of the compression and decompression context information is taken and stored in the first network entity. The connection between the first network entity and the mobile terminal is changed to a connection between the mobile terminal and a second network entity. The context information snapshot stored by the first network entity is transferred to the second network entity to be stored therein as the context information of the second network entity. The stored context information at the mobile terminal and the second network entity is then used for compression and decompression of the headers of the packets.

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Japanese Office Action, Dated Feb. 26, 2007, Application No. 2002-557095, Applicant Akitoshi Mochizuki.

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