Per-rank uplink and downlink beam selection
AssigneeQUALCOMM Incorporated
InventorsJun ZHU, Mihir Vijay LAGHATE, Raghu Narayan CHALLA
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Abstract
Certain aspects of the present disclosure provide techniques for per-rank uplink and downlink beam selection. An example method, performed at a user equipment (UE), generally includes measuring channel state information (CSI) reference signals (CSI-RS) associated with a plurality of beams, determining an uplink rank and a downlink rank, selecting, from the plurality of beams, a downlink beam for processing downlink transmissions, based on the CSI RS measurements and the downlink rank, and selecting, from the plurality of beams, an uplink beam for processing uplink transmissions, based on the CSI RS measurements, the uplink rank, and the downlink rank.
Claims20
An apparatus for wireless communication at a user equipment (UE), comprising:
- at least one memory comprising computer-executable instructions;
- and one or more processors configured to execute the computer-executable instructions and cause the apparatus to:
- measure channel state information (CSI) reference signals (CSI-RS) associated with a plurality of beams;
- determine an uplink rank and a downlink rank;
- select, from the plurality of beams, a downlink beam for processing downlink transmissions, based on the CSI RS measurements and the downlink rank;
- and
- select, from the plurality of beams, an uplink beam for processing uplink transmissions, based on the CSI RS measurements, the uplink rank, and the downlink rank.
A method for wireless communication at a user equipment (UE), comprising:
- measuring channel state information (CSI) reference signals (CSI-RS) associated with a plurality of beams;
- determining an uplink rank and a downlink rank;
- selecting, from the plurality of beams, a downlink beam for processing downlink transmissions, based on the CSI RS measurements and the downlink rank;
- and
- selecting, from the plurality of beams, an uplink beam for processing uplink transmissions, based on the CSI RS measurements, the uplink rank, and the downlink rank.
A computer readable medium having instructions stored thereon for:
- measuring channel state information (CSI) reference signals (CSI-RS) associated with a plurality of beams;
- determining an uplink rank and a downlink rank;
- selecting, from the plurality of beams, a downlink beam for processing downlink transmissions, based on the CSI RS measurements and the downlink rank;
- and
- selecting, from the plurality of beams, an uplink beam for processing uplink transmissions, based on the CSI RS measurements, the uplink rank, and the downlink rank.
Dependencies are inferred from the claim text.