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Patent Searching and Data


Title:
RADIO COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2001144677
Kind Code:
A
Abstract:

To provide a radio communication system improved in downlink performance and capacity for radio communication.

The downlink capacity enhancing method for the radio communication system including a base station having an antenna array and a plurality of remote terminals being physically away from the base station comprises a step where the antenna array of the base station receives combination of signals arrived from a plurality of the remote terminals, a step where an uplink channel covariance matrix(UCCM) with respect to each of the terminals is predicated on the basis of the combination of the arrived signals, a step where a downlink channel covariance matrix(DCCM) is constructed from each UCCM, a step where a downlink weight vector of each terminal is calculated on the basis of all the UCCM and DCCM, and a step where sets of information signals are transmitted from the antenna array of the base station according to the downlink weight vector.


Inventors:
LIANG YING CHANG
CHIN FRANCOIS PO SHIN
Application Number:
JP2000288632A
Publication Date:
May 25, 2001
Filing Date:
September 22, 2000
Export Citation:
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Assignee:
NATL UNIV OF SINGAPORE
International Classes:
H04B7/06; H04B7/26; H04J99/00; H04Q7/36; (IPC1-7): H04B7/26; H04J15/00
Attorney, Agent or Firm:
秋元 輝雄