Title:
空間分割多元接続に基づいた参照信号とデータ信号との重畳方法及び装置
Document Type and Number:
Japanese Patent JP5497167
Kind Code:
B2
Abstract:
The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance.
Inventors:
Child
Xu Ming
Masayuki Hoshino
Masago Nakao
Daichi Imamura
Xu Ming
Masayuki Hoshino
Masago Nakao
Daichi Imamura
Application Number:
JP2012515326A
Publication Date:
May 21, 2014
Filing Date:
April 12, 2010
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04J99/00; H04B7/04; H04J11/00; H04W16/28; H04W72/04
Domestic Patent References:
| JP2009501484A |
Foreign References:
| WO2007117127A1 |
Other References:
Huawei,LTE-A downlink DM-RS pattern design[online], 3GPP TSG-RAN WG1#57 R1-092217,インターネット
CMCC,Performance evaluation of multi-user dual-layer beamforming[online], 3GPP TSG-RAN WG1#57 R1-092188,インターネット
CMCC,Performance evaluation of multi-user dual-layer beamforming[online], 3GPP TSG-RAN WG1#57 R1-092188,インターネット
Attorney, Agent or Firm:
Koichi Washida