Uplink composite beam synthesis
AssigneeQUALCOMM Incorporated
InventorsVasanthan RAGHAVAN, Tao LUO, Junyi LI
Life of this patent
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit sounding reference signals (SRSs) on a plurality of beams to a base station using a set of SRS resources indicated by the base station. The UE may receive, from the base station, an SRS resource indicator indicating one or more SRS resources of the set of SRS resources and determine a combined transmit beam from the plurality of beams based at least in part on the SRS resource indicator. Numerous other aspects are provided.
Claims30
A method of wireless communication performed by a user equipment (UE), comprising:
- transmitting sounding reference signals (SRSs) on a plurality of beams to a base station using a set of SRS resources indicated by the base station;
- receiving, from the base station, an SRS resource indicator indicating one or more SRS resources of the set of SRS resources;
- and
- determining a combined transmit beam from the plurality of beams based at least in part on the SRS resource indicator.
A method of wireless communication performed by a base station, comprising:
- determining a set of sounding reference signal (SRS) resources to provide to a user equipment (UE) based at least in part on feedback for one or more signals transmitted to the UE;
- transmitting an indication of the set of SRS resources to the UE for use in beam training;
- determining one or more SRS resources for the UE from the set of SRS resources based at least in part on measurements of SRSs received with the set of SRS resources on a plurality of beams from the UE;
- transmitting an SRS resource indicator to the UE, the SRS resource indicator indicating the one or more SRS resources of the set of SRS resources;
- and
- receiving, from the UE, communications on a combined transmit beam that is combined from a plurality of beams based at least in part on the one or more SRS resources.
A user equipment (UE) for wireless communication, comprising:
- a memory;
- and
- one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
- transmit sounding reference signals (SRSs) on a plurality of beams to a base station using a set of SRS resources indicated by the base station;
- receive, from the base station, an SRS resource indicator indicating one or more SRS resources of the set of SRS resources;
- and
- determine a combined transmit beam from the plurality of beams based at least in part on the SRS resource indicator.
A base station for wireless communication, comprising:
- a memory;
- and
- one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
- determine a set of sounding reference signal (SRS) resources to provide to a user equipment (UE) based at least in part on feedback for one or more signals transmitted to the UE;
- transmit an indication of the set of SRS resources to the UE for use in beam training;
- determine one or more SRS resources for the UE from the set of SRS resources based at least in part on measurements of SRSs received with the set of SRS resources on a plurality of beams from the UE;
- transmit an SRS resource indicator to the UE, the SRS resource indicator indicating the one or more SRS resources of the set of SRS resources;
- and
- receive, from the UE, communications on a combined transmit beam that is combined from a plurality of beams based at least in part on the one or more SRS resources.
Dependencies are inferred from the claim text.