Title:
METHOD FOR LINK ADAPTATION IN WIDEBAND WIRELESS MOBILE COMUNICATION SYSTEMS, SYSTEM AND APPARATUS THEREOF
Document Type and Number:
WIPO Patent Application WO/2009/097808
Kind Code:
A1
Abstract:
A method for link adaptation in wide-band wireless mobile communication systems is disclosed. By analyzing state information of the channel, the channel variety factor is calculated. Then a decision is taken to determine whether the state of the current channel varies dramatically based on the channel-varying factor. If so, signals are transmitted by using BR-OFDMA (Block Repeat- Orthogonal Frequency Division Multiple Access) mode; otherwise, signals are transmitted by using OFDMA (Orthogonal Frequency Division Multiple Access) mode. The corresponding wide-band wireless mobile communication system and apparatus are also disclosed. The method, system and apparatus can enhance the spectrum efficiency under high-speed mobile circumstance.
Inventors:
YU YANG (CN)
SUN SHAOHUI (CN)
WANG YINGMIN (CN)
SUN SHAOHUI (CN)
WANG YINGMIN (CN)
Application Number:
PCT/CN2009/070285
Publication Date:
August 13, 2009
Filing Date:
January 22, 2009
Export Citation:
Assignee:
DA TANG MOBILE COMM EQUIPMENT (CN)
YU YANG (CN)
SUN SHAOHUI (CN)
WANG YINGMIN (CN)
YU YANG (CN)
SUN SHAOHUI (CN)
WANG YINGMIN (CN)
International Classes:
H04B7/26; H04J11/00; H04L1/00; H04L27/26
Foreign References:
| CN1780242A | 2006-05-31 | |||
| US20060268976A1 | 2006-11-30 | |||
| US20040110510A1 | 2004-06-10 |
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (No. 1 Zhichun Road Haidian District, Beijing 3, CN)
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