多入力多出力システムにおけるデータ処理方法およびその装置

Japanese Patent JP5241380

B2

A method of data processing includes the steps of: dividing user terminals into groups based on channel attributes and service requirements of the user terminals and setting a precoding code word and a cyclic delay for each of the groups; and determining which group a user terminal corresponding to the data to be processed belongs to and processing the data to be processed by the Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay of the group. A data processing apparatus includes a grouping module and a CDD precoding module. By the method and apparatus above, the signal quality in the MIMO system can be improved.

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Liu Competition Excellent
Yu Komei
Chen Storm
Hidekazu Taoka

JP2008213942A

July 17, 2013

August 22, 2008

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NTT DoCoMo, Inc.

H04J99/00; H04B7/04; H04J11/00

JP2009526466A
JP2010533409A
JP2010521873A
JP2008118380A
JP2009542157A
JP2010502110A
JP2008118650A
JP2010518778A
JP2010527537A
JP2010518757A

WO2007136211A1
WO2008098092A1

3GPP TS 36.211 V1.2.2, 3GPP TSG-RAN WG1#50,インターネット,2007年 8月19日
Samsung, Ericsson, NTT DoCoMo, Qualcomm, Huawei, Panasonic, AT&T,Text Proposal for TS 36.211 Regarding CDD Design[online], 3GPP TSG-RAN WG1#49b R1-073182,インターネット,2007年 7月 2日
QUALCOMM Europe,Large Delay CDD Based Precoding for 4Tx[online], 3GPP TSG-RAN WG1#49b R1-072743,インターネット,2007年 6月20日
3GPP TS 36.211 V1.2.0, 3GPP TSG-RAN WG1#49b,インターネット,2007年 7月30日

Hidekazu Miyoshi
Masakazu Ito
Shunichi Takahashi
Ichitaro Ito

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