Title:
相互関係誤差を校正するデバイスおよび方法
Document Type and Number:
Japanese Patent JP5384754
Kind Code:
B2
Abstract:
The present invention provides a method for reciprocity error calibration, comprising steps of: measuring downlink channel response H DL ; measuring uplink channel response H UL ; calculating one of a user equipment reciprocity error E m and a base station reciprocity error E b utilizing least square LS criterion based on the H DL and H UL in accordance with a reciprocity model calculating the other one of the E m and E b based on the calculated one of E m and E b utilizing an algorithm adopting minimum mean square error MMSE criterion; and performing a reciprocity error calibration operation utilizing the calculated user equipment reciprocity error E m and base station reciprocity error E b . There is further provided a reciprocity error calibration device for performing the reciprocity error calibration method. The reciprocity error calibration method and the reciprocity error calibration device according to the present invention may provide better reciprocity error calibration performance.
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Inventors:
Luo, Ching Lin
Shi, gin
Shi, gin
Application Number:
JP2012552227A
Publication Date:
January 08, 2014
Filing Date:
October 12, 2010
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H04J99/00
Domestic Patent References:
| JP2007089165A | ||||
| JP2007531467A | ||||
| JP2007517440A |
Foreign References:
| WO2008146494A1 |
Other References:
Alcatel-Lucent Shanghai Bell , Alcatel-Lucent,Simultaneous eNB and UE Reciprocity Calibration,3GPP TSG-RAN WG1 Meeting #60,インターネット,2010年 2月16日,R1-100932
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Channel Reciprocity Modeling and Performance Evaluation,3GPP TSG-RAN WG1 Meeting #59,インターネット,2009年11月 9日,R1-094622
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Antenna Array Calibration for TDD CoMP,3GPP TSG-RAN WG1 Meeting #59,インターネット,2009年11月 9日,R1-094623
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,An Over-the-Air-Calibration Scheme for ZF based SU/MU-MIMO,3GPP TSG-RAN WG1 Meeting #58,インターネット,2009年 8月24日,R1-093369
Qualcomm Europe,Calibration Procedures for TDD Beamforming,3GPP TSG-RAN WG1 Meeting #51b,インターネット,2008年 1月14日,R1-080494
Mitsubishi Electric,Discussion on antenna calibration in TDD,3GPP TSG-RAN WG1 Meeting #56 ,インターネット,2009年 2月 9日,R1-090563
Huawei,Hardware calibration requirement for dual layer beamforming,3GPP TSG-RAN WG1 Meeting #58,インターネット,2009年 8月24日,R1-093026
Samsung,Antenna calibrations for TDD CoMP,3GPP TSG-RAN WG1 Meeting #58,インターネット,2009年 8月24日,R1-093378
CATT,Study on channel reciprocity in LTE-A,3GPP TSG-RAN WG1 Meeting #58b,インターネット,2009年10月12日,R1-094138
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Channel Reciprocity Modeling and Performance Evaluation,3GPP TSG-RAN WG1 Meeting #59,インターネット
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Antenna Array Calibration for TDD CoMP,3GPP TSG-RAN WG1 Meeting #59,インターネット
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,An Over-the-Air-Calibration Scheme for ZF based SU/MU-MIMO,3GPP TSG-RAN WG1 Meeting #58,インターネット
Qualcomm Europe,Calibration Procedures for TDD Beamforming,3GPP TSG-RAN WG1 Meeting #51b,インターネット
Mitsubishi Electric,Discussion on antenna calibration in TDD,3GPP TSG-RAN WG1 Meeting #56 ,インターネット
Huawei,Hardware calibration requirement for dual layer beamforming,3GPP TSG-RAN WG1 Meeting #58,インターネット
Samsung,Antenna calibrations for TDD CoMP,3GPP TSG-RAN WG1 Meeting #58,インターネット
CATT,Study on channel reciprocity in LTE-A,3GPP TSG-RAN WG1 Meeting #58b,インターネット
Attorney, Agent or Firm:
Okabe
Koji Yoshizawa
Katsumi Miyama
▲濱▼口 岳久
Takashi Kawasaki
Koji Yoshizawa
Katsumi Miyama
▲濱▼口 岳久
Takashi Kawasaki