Subband reporting for channel state information of multiple transmission reception points
AssigneeQUALCOMM Incorporated
InventorsRuifeng Ma, Bo Chen, Chenxi Hao
Life of this patent
Estimating the term…
Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine one or more per-subband preferences, that specify transmission reception points (TRPs) from which the UE is to measure channel state information reference signals (CSI-RSs), based at least in part on a CSI-RS resource indicator (CRI) format indicator that indicates a quantity of preferences per subband. The UE may transmit, to a base station, a CRI report based at least in part on the one or more per-subband preferences. Numerous other aspects are provided.
Claims25
A method of wireless communication performed by a user equipment (UE), comprising:
- determining one or more per-subband preferences, that specify transmission reception points (TRPs) from which the UE is to measure channel state information reference signals (CSI-RSs), based at least in part on a CSI-RS resource indicator (CRI) format indicator that indicates a quantity of preferences per subband;
- preparing a CRI report based at least in part on the one or more per-subband preferences and on whether a CRI report resource block group (CRBG) size is (i) a same size as a subband size of a CSI report configuration or is (ii) an integer multiple of the subband size, based at least in part on a size indicator;
- and
- transmitting the CRI report.
A method of wireless communication performed by a network entity, comprising:
- transmitting a format indicator that indicates a format for one or more per-subband preferences that specify transmission reception points (TRPs) from which a user equipment (UE) is to measure channel state information reference signals (CSI-RSs), and a size indicator that indicates whether a CSI-RS resource indicator (CRI) report resource block group (CRBG) size is to be (i) a same size as a subband size of a CSI report configuration or is (ii) an integer multiple of the subband size;
- receiving a CRI report that includes measurements for the one or more per-subband preferences and is based at least in part on the size indicator;
- and
- scheduling subbands for the UE based at least in part on the CRI report.
A user equipment (UE) for wireless communication, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to:
- determine one or more per-subband preferences, that specify transmission reception points (TRPs) from which the UE is to measure channel state information reference signals (CSI-RSs), based at least in part on a CSI-RS resource indicator (CRI) format indicator that indicates a quantity of preferences per subband;
- prepare a CRI report based at least in part on the one or more per-subband preferences and on whether a CRI report resource block group (CRBG) size is (i) a same size as a subband size of a CSI report configuration or is (ii) an integer multiple of the subband size, based at least in part on a size indicator;
- and
- transmit the CRI report.
A network entity for wireless communication, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, the one or more processors configured to:
- transmit a format indicator that indicates a format for one or more per-subband preferences that specify transmission reception points (TRPs) from which a user equipment (UE) is to measure channel state information reference signals (CSI-RSs), and a size indicator that indicates whether a CSI-RS resource indicator (CRI) report resource block group (CRBG) size is to be (i) a same size as a subband size of a CSI report configuration or is (ii) an integer multiple of the subband size;
- receive a CRI report that includes measurements for the one or more per-subband preferences and is based at least in part on the size indicator;
- and
- schedule subbands for the UE based at least in part on the CRI report.
Dependencies are inferred from the claim text.