Title:
CSI MEASUREMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/119697
Kind Code:
A1
Abstract:
The present application relates to the technical field of communications, and provides a CSI measurement method and device. The method comprises: a network device receives from a terminal a first RS used for measuring uplink CSI and a second RS used for measuring the uplink CSI, the first RS comprising RS ports, which correspond to antenna ports of the terminal, correspondingly, the second RS comprising RS ports, which also correspond to antenna ports of the terminal, and the antenna ports of the terminal corresponding to the RS ports of the second RS and the antenna ports of the terminal corresponding to the RS ports of the first RS being partially identical or completely identical; the network device measures the uplink CSI according to the first RS or the second RS, thus selecting a RS for measuring the uplink CSI according to needs; the network device may also measure the uplink CSI according to the first RS and the second RS, and determines downlink CSI according to the uplink CSI, so that channel aging is avoided, and the receiving quality of the terminal for receiving a PDSCH is improved.
Inventors:
WU YE (CN)
BI XIAOYAN (CN)
BI XIAOYAN (CN)
Application Number:
PCT/CN2019/124418
Publication Date:
June 18, 2020
Filing Date:
December 10, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W72/04
Foreign References:
| CN108631847A | 2018-10-09 | |||
| CN103069761A | 2013-04-24 | |||
| CN107666341A | 2018-02-06 | |||
| US20130083681A1 | 2013-04-04 | |||
| CN201811505572A | 2018-12-10 |
Other References:
See also references of EP 3886516A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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