US 12,010,655 B2
Channel state information reporting method and device, terminal and network side device
Xin Su, Beijing (CN); Hui Li, Beijing (CN); Qiubin Gao, Beijing (CN); Runhua Chen, Beijing (CN); and Deshan Miao, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/280,811
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Sep. 26, 2019, PCT No. PCT/CN2019/108142
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/063743, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 201811133688.5 (CN), filed on Sep. 27, 2018.
Prior Publication US 2022/0015064 A1, Jan. 13, 2022
Int. Cl. H04W 72/02 (2009.01); H04W 24/10 (2009.01); H04W 72/06 (2009.01); H04W 72/08 (2009.01); H04W 72/542 (2023.01); H04W 72/563 (2023.01)
CPC H04W 72/02 (2013.01) [H04W 24/10 (2013.01); H04W 72/542 (2023.01); H04W 72/563 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A Channel State Information (CSI) reporting method for a terminal, comprising:
acquiring a resource set configured by a network side device, the resource set comprising a plurality of measurement resources;
measuring a downlink reference signal for a plurality of transmission nodes in accordance with the plurality of measurement resources, to determine a target Channel State Information-Reference Signal (CSI-RS) port set for CSI measurement; and
performing calculation in accordance with the target CSI-RS port set to acquire to-be-reported CSI,
wherein the CSI reporting method further comprising:
acquiring a correspondence between CSI-RS port sets and different rank values supported by the transmission nodes, the correspondence being configured by the network side device in accordance with the plurality of measurement resources;
wherein the measuring the downlink reference signal for the plurality of transmission nodes in accordance with the plurality of measurement resources to determine the target CSI-RS port set for the CSI measurement comprises: selecting, from the correspondence in accordance with channel measurement data acquired through measuring the downlink reference signal, one of the rank values as a target rank value, and determining a CSI-RS port set corresponding to the target rank value as the target CSI-RS port set.