Title:
実時間サービスにおけるヘッダ圧縮
Document Type and Number:
Japanese Patent JP3751823
Kind Code:
B2
Abstract:
The invention relates to a method for transferring a data packet from a compressor to a decompressor said data packet including a header with header data fields. A number of the header data fields that remain constant during the data transfer are stored in the decompressor. In a compressed data packet, a header data field that varies is replaced by a compressed value identifying a data packet in a compression sequence. In the decompressor context data comprising information for relating the received compressed value to a corresponding compression sequence is maintained and the information is updated according to the received compressed values. The compressed value and the information of the corresponding compression sequence are used for mapping the compressed value into a decompressed header data field. Thus compressed data is unambiguously mapped to a full packet data header field in the decompressor side throughout the session.
Inventors:
Palantäinen, Janne
Shukumbin, Hamiti
Shukumbin, Hamiti
Application Number:
JP2000600378A
Publication Date:
March 01, 2006
Filing Date:
February 14, 2000
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
H03M7/30; H03M13/37; H04J3/00; H04J3/26; H04L1/00; H04L12/56; H04L12/66; H04L29/06; H04L29/08
Domestic Patent References:
| JP2000134370A | ||||
| JP8204778A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Koichi Itsubo
Yoshio Mizutani
Masaya Nishiyama
Takashi Ishida
Mega Station Tsuneo
Higuchi Souji
Jun Tsuruta
Tetsuro Shimada
Koichi Itsubo
Yoshio Mizutani
Masaya Nishiyama
Takashi Ishida
Mega Station Tsuneo
Higuchi Souji