Title:
【発明の名称】除算の剰余を用いたパケットヘッダ圧縮方法
Document Type and Number:
Japanese Patent JP2003514445
Kind Code:
A
Abstract:
The present invention is directed to providing a method and apparatus for efficiently compressing and reconstructing a header of a real time communication packet. In a header compressor, a header field value is applied to a modulo X operator which can, for example, divide the header field value by a value X, and output the remainder. Optionally, a checksum may be appended to the remainder. The header field value may be scaled prior to being applied to the modulo X operator. The compressed header field which is output from the header compressor includes the remainder with or without the checksum appended. A header decompressor includes a field reconstructor which reconstructs the received compressed header field in response to the remainder value and range information. The range information represents a range of possible field values which can be reconstructed from the received remainder value.
Inventors:
Einalson, Tolbyern
Svanbro, Christel
Svanbro, Christel
Application Number:
JP2001537221A
Publication Date:
April 15, 2003
Filing Date:
November 08, 2000
Export Citation:
Assignee:
Telephone Activola Get Elm Ericsson (Pubble)
International Classes:
H04L29/06; H04L12/801; H04N7/26; (IPC1-7): H04L29/06; H04N7/24
Domestic Patent References:
| JPH08228342A | 1996-09-03 | |||
| JP2001517915A | 2001-10-09 | |||
| JP2002506321A | 2002-02-26 | |||
| JPH1093588A | 1998-04-10 | |||
| JP2003502948A | 2003-01-21 | |||
| JPH10198881A | 1998-07-31 | |||
| JPH05181913A | 1993-07-23 | |||
| JP2003502947A | 2003-01-21 |
Attorney, Agent or Firm:
Yoshitaka Sonoda (1 outside)
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