Title:
時間・空間・周波数領域に基づく情報フィードバック方法、ユーザ装置、および基地局
Document Type and Number:
Japanese Patent JP2010537599
Kind Code:
A
Abstract:
A space-time-frequency domain based information feedback method, system, user equipment and base station for wireless transmission technical fields is provided. The user equipment measures and evaluates quality of wireless transmission downlinks in MIMO system, obtains rank, precoding matrix index and channel quality indicator information in the wireless transmission downlinks, processes information of the wireless transmission downlink respectively in space domain, frequency domain and time domain by using space selectivity, frequency selectivity and time selectivity characteristics of a channel, and feeds back downlink information to the base station through uplinks by using feedback schemes. The base station optimizes a transmitter according to feedback information from the user equipment.
More Like This:
Inventors:
Liang, Youngmin
Ryu, Renmao
Yang, Chang Guan
Din, Min
Ryu, Renmao
Yang, Chang Guan
Din, Min
Application Number:
JP2010522166A
Publication Date:
December 02, 2010
Filing Date:
August 25, 2008
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04J99/00; H04W16/28; H04W24/10
Domestic Patent References:
| JP2007174337A | 2007-07-05 | |||
| JP2003304216A | 2003-10-24 |
Foreign References:
| WO2001076110A2 | 2001-10-11 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office