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Patent Searching and Data


Title:
SYSTEM AND METHOD FOR THE COOPERATION AMONG BASE STATIONS
Document Type and Number:
WIPO Patent Application WO/2010/104319
Kind Code:
A3
Abstract:
The present invention relates to a system and to a method for the cooperation among base stations, in which a communication service is provided to a plurality of communication terminals through the plurality of base stations. When channel state information of a communication terminal is acquired, a serving base station selects a serving channel code matching the channel state information from a codebook, calculates linear transform information using the serving channel code and the channel state information, and transmits the serving channel code to a cooperative base station. When the cooperative base station receives a cooperation channel code, the serving base station calculates serving weight information of the serving base station and cooperation weight information of the cooperative base station using the serving channel code and the cooperation channel code, and determines a beam forming vector by applying the linear transform information to the serving weight information. According to the present invention, the channel state information is linearly transformed before the base station transforms the channel state information into the channel code, to thereby predict a quantization loss between the channel state information and the channel code in the system for the cooperation among base stations. In addition, the base station may recover the quantization loss when communication service is provided in the system for the cooperation among base stations. This leads to improved cooperation performance among base stations in the system for the cooperation among base stations.

Inventors:
KO EUN SEOK (KR)
KIM EUN YONG (KR)
Application Number:
PCT/KR2010/001469
Publication Date:
December 16, 2010
Filing Date:
March 09, 2010
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
KO EUN SEOK (KR)
KIM EUN YONG (KR)
International Classes:
H04B7/04; H04B7/155
Foreign References:
KR20030046539A2003-06-18
KR100429540B12004-08-09
Attorney, Agent or Firm:
YOON, Dong Yol (3rd FL Ace Highend Tower-5,505-18, Gasan-dong,Geumcheon-gu, Seoul 153-803, KR)
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