Title:
The method for transmitting 4 Antenna P recoding matrix, user apparatus, and a base station
Document Type and Number:
Japanese Patent JP6235704
Kind Code:
B2
Abstract:
The present invention discloses a method for transmitting a 4-antenna precoding matrix, a user equipment, and a base station. The method includes: determining a rank used for indicating the number of transmission layers; determining a first precoding matrix in a codebook set corresponding to the rank; determining a first PMI and a second PMI used for indicating the first precoding matrix; and sending the first PMI and the second PMI used for indicating the first precoding matrix to a base station. By means of the method for transmitting a 4-antenna precoding matrix, the user equipment, and the base station according to embodiments of the present invention, more precoding matrices that are applicable to a uniform linear array antenna may be indicated without changing a feedback mode or feedback bits, and it may be ensured that performance for application of a dual-polarized antenna is not affected, so that system performance may be improved and user experience may be enhanced.
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Inventors:
Kure Strength
Zhang Thunder Sound
Liu Jiang Flower
Zhang Thunder Sound
Liu Jiang Flower
Application Number:
JP2016517109A
Publication Date:
November 22, 2017
Filing Date:
June 04, 2013
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
H04B7/0456
Domestic Patent References:
| JP2016517192A |
Other References:
Huawei, HiSilicon,Details of 4TX codebook subsampling, 3GPP TSG-RAN WG1#73 R1-132833,2013年 5月24日
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Proposals of enhanced 4Tx codebook and codebook subsampling, 3GPP TSG-RAN WG1#73 R1-132840,2013年 5月24日,pp.1-6
Alcatel-Lucent Shanghai Bell, Alcatel-Lucent,Proposals of enhanced 4Tx codebook and codebook subsampling, 3GPP TSG-RAN WG1#73 R1-132840,2013年 5月24日,pp.1-6
Attorney, Agent or Firm:
Yoshifumi Saeki
Keiji Kiuchi
Keiji Kiuchi