Title:
【発明の名称】リンク適合モードをサポートする無線通信システムとその方法
Document Type and Number:
Japanese Patent JP2003523645
Kind Code:
A
Abstract:
A system and method is provided for communicating in a wireless communication system which supports link adaptation or link adaptation and incremental redundancy. The invention provides link adaptation at multiple code rate by dividing fixed length RLC blocks into coded sub-blocks. CRC code may be appended to the RLC blocks for error detection. The sub-blocks are then grouped into transmission units for transmission. The number of sub-blocks in each group is varied to provide multiple code rates. Headers are used to identify the transmission units being transmitted. In the case of retransmission, the transmission units may be expressly identified through extended headers. One or more of the originally transmitted sub-blocks are dropped and replaced by the extended headers in the retransmission. Accordingly, the present invention provides for a retransmission code rate which may be different from the code rate at which the transmission units were originally transmitted.
Inventors:
Krishna Barachandran
Richard P. Ejack
Sanjib Nanda
Richard P. Ejack
Sanjib Nanda
Application Number:
JP2000580330A
Publication Date:
August 05, 2003
Filing Date:
November 03, 1999
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
H04L1/00; H04L1/18; H04W28/04; H04W28/06; (IPC1-7): H04Q7/38
Attorney, Agent or Firm:
Hirofumi Mimata