Title:
AMC (ADAPTATIVE MODULATION AND CODING) METHOD AND APPARATUS FOR INCREASING UP-LINK PERFORMANCE AND RECORD MEDIUM STORING THE METHOD
Document Type and Number:
WIPO Patent Application WO2005109809
Kind Code:
B1
Abstract:
The present invention relates to an AMC(Adaptive Modulation and Coding) method and apparatus for increasing up-link performance and a record medium storing the method. The method according to the preferred embodiments of the present invention comprise: (a) receiving a signal from the base station storing an identical mapping table with that stored in the terminal, wherein said mapping table comprises adaptive modulating manners comprising modulating manners and coding manners corresponding to plural signal-to-noise ratios(SNRs), and information about mapping identifiers corresponding to the adaptive modulating manners; (b) measuring a SNR for said signal; (c) extracting an adaptive modulating manner comprising a modulating manner and a coding manner corresponding to said SNR and a mapping identifier corresponding to the adaptive modulating manner by referring to said mapping table; and (d) transmitting said mapping identifier to the base station so that the base station could demodulate and decode the data received from said terminal by referring to said mapping table.
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Inventors:
NA JUN-CHAE (KR)
JANG WON-HAK (KR)
KIM KYUNG TAE (KR)
JANG WON-HAK (KR)
KIM KYUNG TAE (KR)
Application Number:
PCT/KR2005/001352
Publication Date:
January 05, 2006
Filing Date:
May 09, 2005
Export Citation:
Assignee:
KT FREETEL CO LTD (KR)
NA JUN-CHAE (KR)
JANG WON-HAK (KR)
KIM KYUNG TAE (KR)
NA JUN-CHAE (KR)
JANG WON-HAK (KR)
KIM KYUNG TAE (KR)
International Classes:
H04L27/00; H04L1/00; H04W28/00; H04W28/18; H04W74/04; H04W84/10; (IPC1-7): H04L27/00
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