Reporting and precoder signaling in sidelink resource allocation
AssigneeQUALCOMM Incorporated
InventorsYi HUANG, Wanshi CHEN, Seyedkianoush HOSSEINI, Wei YANG
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Abstract
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for providing two channel state information (CSI) reports based on sidelink CSI reference signal (RS) respectively to a sidelink user equipment (UE) and a network entity (e.g., a base station). Existing sidelink CSI reporting between UEs is not shared with the network. The lack of information on the network side prevents scheduling improvements. Therefore, by generating a second CSI report to the network, the network can have information to better schedule sidelink UE transmissions and to introduce precoding matrix indicator (PMI) signaling.
Claims30
A method for wireless communication by a reporting user equipment (UE), comprising:
- receiving a sidelink channel state information (CSI) reference signal (RS) from a requesting UE;
- generating a first CSI report based on the sidelink CSI RS to send to the requesting UE;
- and
- generating a second CSI report based on the sidelink CSI RS to send to a network entity.
A method for wireless communication by a requesting UE, comprising:
- sending a sidelink channel state information (CSI) reference signal (RS) to a reporting UE;
- receiving, from the reporting UE via physical sidelink shared channel (PSSCH), a first CSI report based on the sidelink CSI RS;
- and
- receiving signaling from a network entity, for having the reporting UE carry a second CSI report to send to the network entity, based on the sidelink CSI RS.
An apparatus for wireless communication by a reporting user equipment (UE), comprising:
- at least one processor and a memory configured to:
- receive a sidelink channel state information (CSI) reference signal (RS) from a requesting UE;
- generate a first CSI report based on the sidelink CSI RS to send to the requesting UE;
- and
- generate a second CSI report based on the sidelink CSI RS to send to a network entity.
An apparatus for wireless communication by a requesting user equipment (UE), comprising:
- at least one processor and a memory configured to:
- send a sidelink channel state information (CSI) reference signal (RS) to a reporting UE;
- receive, from the reporting UE via physical sidelink shared channel (PSSCH), a first CSI report based on the sidelink CSI RS;
- and
- receive signaling from a network entity, for having the reporting UE carry a second CSI report to send to the network entity, based on the sidelink CSI RS.
Dependencies are inferred from the claim text.