US 12,232,128 B2
Uplink information feedback resource determination method and device
Wei Lin, Shenzhen (CN); Peng Hao, Shenzhen (CN); Wei Gou, Shenzhen (CN); Xianghui Han, Shenzhen (CN); and Yu Ngok Li, Hong Kong (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 17/611,493
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed May 15, 2020, PCT No. PCT/CN2020/090414
§ 371(c)(1), (2) Date May 19, 2022,
PCT Pub. No. WO2020/228804, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 201910403610.9 (CN), filed on May 15, 2019.
Prior Publication US 2022/0287068 A1, Sep. 8, 2022
Int. Cl. H04W 72/23 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 72/21 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 1/1812 (2013.01); H04L 5/0057 (2013.01); H04W 72/21 (2023.01)] 19 Claims
OG exemplary drawing
 
1. An uplink information feedback resource determination method, comprising:
sending downlink control information (DCI), to a terminal, wherein the DCI is used for scheduling downlink service data and for requesting the terminal to feed back channel state information (CSI), and the DCI comprises indication information of both a physical uplink control channel (PUCCH), resource occupied by the CSI and a PUCCH resource occupied by a hybrid automatic repeat request (HARQ), information for the downlink service data; and
receiving the CSI and the HARQ information sent by the terminal, wherein the PUCCH resource occupied by the CSI and the PUCCH resource occupied by the HARQ information are determined according to the indication information in the DCI,
wherein the sending the DCI to the terminal comprises:
sending X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data and Y DCIs in the X DCIs are used for requesting the terminal to feed back CSI, wherein X≥1, X≥Y≥0, X and Y are integers, CSIs and HARQ information corresponding to the X DCIs are fed back using a same PUCCH resource, selection of a location of the PUCCH resource used by the CSIs and the HARQ information corresponding to the X DCIs needs to satisfy a minimum feedback timing of the CSIs and the HARQ information corresponding to the X DCIs, and a PUCCH resource set where the PUCCH resource is located is determined according to a total feedback overhead of the CSIs and the HARQ information corresponding to the X DCIs; and
wherein the receiving the CSI and the HARQ information sent by the terminal comprises:
receiving the CSIs and the HARQ information corresponding to the X DCIs sent by the terminal on the same PUCCH resource,
wherein the sending X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data and Y DCIs in the X DCIs are used for requesting the terminal to feed back CSI, comprises:
sending the X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data and the X DCIs all are used for requesting the terminal to feed back CSI;
sending the X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data, and in a case where an X-th DCI is used for requesting the terminal to feed back CSI, the X DCIs all are used for requesting the terminal to feed back CSI, or in a case where the X-th DCI is not used for requesting the terminal to feed back CSI, none of the X DCIs are used for requesting the terminal to feed back CSI;
sending the X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data and the terminal is configured to respond to a CSI feedback request of one of the X DCIs only; or
sending the X DCIs to the terminal, wherein the X DCIs are used for scheduling downlink service data and Y DCIs in the X DCIs are used for requesting the terminal to feed back DCI, the X DCIs comprise CSI feedback statistical information, and the CSI feedback statistical information is used for enabling the terminal to determine a quantity of DCIs used for requesting the terminal to feed back CSI in the X DCIs sent by a base station.