Title:
【発明の名称】パケット交換網において同じユーザからの多数のパケットのための単一ヘッダ符号化
Document Type and Number:
Japanese Patent JP2003505961
Kind Code:
A
Abstract:
In a packet switched network is provided a method of encoding at least two packets into a single block, in which each packet is associated with a header portion, wherein the at least two packets are associated with the same user, the method comprising encoding the at least two packets and only one of the associated header portions. The at least two packets preferably have a payload portion containing speech frames and a speech header. Each speech frame may include a set of Class I bits and a set of Class II bits the method further comprising: encoding a first speech frame by encoding the set of Class I bits; encoding second speech frame by encoding the set of Class I bits; and encoding at least a portion of the header. The speech frames may be for transmission on the down-link of a wireless packet switched network, wherein each encoding step comprises encoding two different portions of the header using two different encoding techniques. The Class I bits and a portion of the header may be encoded using a convolution code. The remainder of the header may be encoded using a block code. The speech frames may be for transmission on the up-link of a wireless packet switched network, wherein the Class I bits and the common header are encoded using a convulition code. The single block may additionally includes a set of stealing bits. The single block may include a set of spare bits.
Inventors:
Demetrescu, Christian
Samaras, Constantinos
Wu, Jiang, Jun
Yang, Run-Hong
Samaras, Constantinos
Wu, Jiang, Jun
Yang, Run-Hong
Application Number:
JP2001512353A
Publication Date:
February 12, 2003
Filing Date:
March 28, 2000
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
H03M13/23; H04B7/26; H04J3/00; H04L1/00; H04L12/56; (IPC1-7): H04L12/56; H03M13/23; H04B7/26; H04L1/00
Attorney, Agent or Firm:
Masao Okabe (11 others)