NR uplink transmit beam selection based on PDCCH/PDSCH receive beams
AssigneeQUALCOMM Incorporated
InventorsMakesh Pravin John Wilson, Tao Luo, Xiao Feng Wang, Sony Akkarakaran, Sumeeth Nagaraja, Shengbo Chen, Kaushik Chakraborty
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques for selecting an uplink (UL) transmit beam by a user equipment (UE). A UE may receive, from a base station (BS), one or more beamformed downlink signals using one or more receive beams. The UE may select an uplink transmit beam based, at least in part, on the one or more beamformed downlink signals. The UE may transmit an uplink signal using the selected uplink transmit beam.
Claims27
A method for wireless communications by a user equipment (UE), comprising:
- receiving, from a base station (BS), one or more beamformed downlink signals using one or more receive beams;
- selecting an uplink transmit beam based, at least in part, on the one or more beamformed downlink signals and one or more downlink port sets associated with the one or more beamformed downlink signals;
- and
- transmitting an uplink signal using the uplink transmit beam.
A method for wireless communication comprising:
- transmitting, to a user equipment (UE) one or more beamformed downlink signals;
- transmitting an indication, to the UE, to select an uplink transmit beam based, at least in part, on the transmitted one or more beamformed downlink signals and on one or more downlink port sets associated with the one or more beamformed downlink signals;
- and
- receiving an uplink transmission from the UE.
An apparatus for wireless communications by a user equipment (UE), comprising:
- a memory;
- and
- a processor coupled with the memory, the memory and the processor configured to:
- receive, from a base station (BS), one or more beamformed downlink signals using one or more receive beams;
- receive an indication to select the uplink transmit beam based, at least in part, on one or more downlink port sets associated with the one or more beamformed downlink signals;
- select an uplink transmit beam based, at least in part, on the one or more beamformed downlink signals and the one or more downlink port sets;
- and
- transmit an uplink signal using the uplink transmit beam.
An apparatus for wireless communications, comprising:
- a memory;
- and
- a processor coupled with the memory, the memory and the processor configured to:
- transmit, to a user equipment (UE) one or more beamformed downlink signals;
- transmit an indication, to the UE, to select an uplink transmit beam based, at least in part, on the transmitted one or more beamformed downlink signals and on one or more downlink port sets associated with the one or more beamformed downlink signals;
- and
- receive an uplink transmission from the UE.
Dependencies are inferred from the claim text.