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Channel state information reporting method and apparatus

專利號(hào)
US11888563B2
公開日期
2024-01-30
申請(qǐng)人
HUAWEI TECHNOLOGIES CO., LTD.（CN Guangdong）
發(fā)明人
Xueru Li; Ruiqi Zhang; Kunpeng Liu; Xianda Liu; Yongxing Zhou
IPC分類
H04B7/06; H04B17/345; H04L5/00; H04W72/23
技術(shù)領(lǐng)域
csi,im,resource,station,terminal,dci,base,rs,resources,nzp
地域： Guangdong

摘要

This application provides a channel state information reporting method and apparatus. The method includes: A terminal device receives M pieces of downlink control information, where first downlink control information in the M pieces of downlink control information indicates a first channel state information configuration, the first channel state information configuration is associated with a first channel state information interference measurement CSI-IM resource group, and the first CSI-IM resource group includes N1 CSI-IM resources, where M and N1 are positive integers, and N1 is greater than 1; and the terminal device measures a target CSI-IM resource, and reports channel state information, where the target CSI-IM resource is determined by the terminal device from the N1 CSI-IM resources based on M, and a quantity of target CSI-IM resources is less than N1.

說明書

Specifically, if the terminal device receives only the DCI 2 sent by the base station 2, a field (for example, a CSI request field) in the DCI 2 indicates the above CSI configuration, and the field further indicates, from two NZP CSI-RS resource configurations associated with the CSI, an ID of an NPZ CSI-RS resource configuration and an ID of a CSI-IM resource configuration that are used for reporting the CSI, for example, a CSI-RS resource configuration 2 and a CSI-IM resource configuration 2. In this case, the transmission mechanism set includes only single-base station transmission. The terminal device determines that the target transmission mechanism is single-base station transmission. In this case, as in Embodiment 1, the target CSI-IM resource is CSI-IM 3 in the CSI-IM configuration 2. Optionally, the terminal device does not need to know a base station from which the DCI 2 comes, and only needs to perform CSI measurement based on the CSI configuration triggered by the DCI 2 and the associated CSI-RS configuration and CSI-IM configuration.

3. The terminal device receives the DCI 1 of the base station 1 and the DCI 2 of the base station 2.

權(quán)利要求

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