Title:
NETWORK NODE, TERMINAL DEVICE AND METHODS THEREIN FOR DATA TRANSMISSION USING BEAMFORMING
Document Type and Number:
WIPO Patent Application WO/2021/072735
Kind Code:
A1
Abstract:
The present disclosure provides a method (200) in a network node. The method (200) includes: selecting (210) a number, N, of beams for data transmission to a terminal device, where N is an integer larger than one; transmitting (220) to the terminal device a Channel State Information – Reference Signal, CSI-RS, having N ports using the N beams; receiving (230) from the terminal device a first measurement report containing a Rank Indicator, RI, obtained by the terminal device measuring the CSI-RS; and transmitting (240) data to the terminal device based on the RI using the N beams.
Inventors:
ZHANG QI (CN)
ZHOU WEI (CN)
LIU CHUNHUI (CN)
ZHOU WEI (CN)
LIU CHUNHUI (CN)
Application Number:
PCT/CN2019/111910
Publication Date:
April 22, 2021
Filing Date:
October 18, 2019
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
ZHANG QI (CN)
ZHANG QI (CN)
International Classes:
H04L27/26; H04B7/06
Domestic Patent References:
| WO2016157059A1 | 2016-10-06 |
Foreign References:
| CN109155655A | 2019-01-04 | |||
| CN108401264A | 2018-08-14 | |||
| CN107615856A | 2018-01-19 | |||
| US20190182697A1 | 2019-06-13 | |||
| US20190052330A1 | 2019-02-14 | |||
| US20180241454A1 | 2018-08-23 |
Other References:
See also references of EP 4014455A4
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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