Title:
METHODS AND APPARATUSES FOR TRANSMITTING CSI FEEDBACK MESSAGE
Document Type and Number:
WIPO Patent Application WO/2024/031515
Kind Code:
A1
Abstract:
The present application relates to methods and apparatuses for transmitting a channel state information (CSI) feedback message. An embodiment of the present disclosure provides a user equipment (UE), comprising: a transceiver configured to: receive a CSI report configuration message indicating a plurality of channel state information reference signal (CSI-RS) resources for channel measurement and at least one zero-power or non-zero power CSI-RS resource for interference measurement, wherein each CSI-RS resource of the plurality of CSI-RS resources is associated with a CSI-RS resource indicator (CRI) and an identical number of CSI-RS ports; and a processor coupled with the transceiver and configured to: perform a channel measurement procedure based on the CSI report configuration message; and select a set of CSI-RS resources from the plurality of CSI-RS resources for a joint transmission based on the channel measurement procedure; wherein the transceiver is further configured to: transmit a CSI feedback message after the channel measurement procedure is performed, wherein the CSI feedback message includes a single rank indicator (RI), a single channel quality indicator (CQI), and a set of precoding matrix indicators (PMIs), wherein each PMI of the set of PMIs is associated with a respective CSI-RS resource in the selected set of CSI-RS resources, and wherein the RI indicates a rank applied to each CSI-RS resource of the selected set of CSI-RS resources, and the CQI indicates a channel quality associated with all CSI-RS resources in the selected set of CSI-RS resources.
Inventors:
ZHU CHENXI (US)
ZHANG YI (CN)
LIU BINGCHAO (CN)
LING WEI (CN)
XIAO LINGLING (CN)
ZHANG YI (CN)
LIU BINGCHAO (CN)
LING WEI (CN)
XIAO LINGLING (CN)
Application Number:
PCT/CN2022/111696
Publication Date:
February 15, 2024
Filing Date:
August 11, 2022
Export Citation:
Assignee:
LENOVO BEIJING LTD (CN)
International Classes:
H04W72/04
Domestic Patent References:
| WO2021146992A1 | 2021-07-29 |
Foreign References:
| US20210167829A1 | 2021-06-03 | |||
| CN113228527A | 2021-08-06 |
Other References:
HUAWEI, HISILICON: "CSI acquisition details for NCJT", 3GPP DRAFT; R1-1713760, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20170821 - 20170825, 20 August 2017 (2017-08-20), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051316559
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (CN)
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