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1. (WO2001035568) SPARSE FEEDBACK IN HIGH DELAY-LOW BANDWIDTH WIRELESS SYSTEMS

Pub. No.:    WO/2001/035568    International Application No.:    PCT/US2000/029846
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Tue Oct 31 00:59:59 CET 2000
IPC: H04L 1/16
H04L 1/18
Applicants: NOKIA CORPORATION
LE, Khiem
Inventors: LE, Khiem
ZHENG, Haihong
LIU, Zhigang
CLANTON, Christopher
Title: SPARSE FEEDBACK IN HIGH DELAY-LOW BANDWIDTH WIRELESS SYSTEMS
Abstract:
A method and apparatus for eliminating the inefficient use of network bandwidth cause by numerous acknowledgement transmitted by the receiver to the transmitter by providing sparse feedback from the receiver to the transmitter indicating receipt of packets having headers to be used as reference headers. In the invention, upon receipt in the receiver of a packet having a reference header, a feedback is provided to the transmitter indicating receipt of the packet having the reference header. Thereafter, the receiver waits a predetermined period of time before providing another feedback in response to another packet having a reference header. The predetermined period of time allows time for the feedback to be received by the transmitter and for information from the transmitter indicating receipt of the feedback to be received by the receiver.