Channel state information reporting method and apparatus
摘要
說明書
In one embodiment, when M=1, the target CSI-IM resource is the second-type CSI-IM resource.
Specifically, when the terminal device receives only one piece of downlink control information, the terminal device may determine that the single-station transmission mechanism is to be used for data transmission in the future, and determine that the target CSI-IM resource is the second-type CSI-IM resource, namely, the above different CSI-IM resources. Optionally, the downlink control information triggers one CSI report, and the CSI report is measured for a multi-TRP transmission mechanism.
In one embodiment, when M=1, the terminal device measures interference information on the determined target CSI-IM resource, determines the channel state information based on the obtained interference information, and reports the channel state information.
In one embodiment, when M≥2, the target CSI-IM resource is the first-type CSI-IM resource.
Specifically, when the terminal device receives at least two pieces of downlink control information at a moment t, the terminal device may determine that a data transmission mechanism at a moment t+k is multi-station joint transmission, and determine the first-type CSI-IM resource as the target CSI-IM resource.
In one embodiment, when M≥2, the target CSI-IM resource is the first-type CSI-IM resource, and the terminal device measures interference information on the target CSI-IM resource and all or a part of CSI-RS resources that are indicated by downlink control information in the M pieces of downlink control information except the first downlink control information, determines the channel state information based on the obtained interference information, and reports the channel state information.
