Rach conveyance of dl synchronization beam information for various dl-ul correspondence states
AssigneeQUALCOMM Incorporated
InventorsMuhammad Nazmul Islam, Sundar Subramanian, Junyi Li, Navid Abedini, Bilal Sadiq
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Abstract
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a downlink (DL) signal from a base station on one or more DL beam(s). The UE may identify a selected DL beam of the one or more DL beam(s) for communications from the base station to the UE. The UE may transmit a scheduling request message to the base station using at least one of a resource or a waveform selected based at least in part on the selected DL beam.
Claims30
A method for wireless communication at a user equipment (UE), comprising:
- receiving a downlink (DL) signal from a base station on one or more DL beams;
- selecting a DL beam of the one or more DL beams for communications from the base station to the UE;
- selecting a resource or a waveform for uplink transmission, the resource or the waveform corresponding to the selected DL beam of the one or more DL beams and selected based at least in part on a beam correspondence between the selected DL beam and one or more uplink beams at the base station;
- and
- transmitting a scheduling request message to the base station using at least one of the resource or the waveform selected based at least in part on the selected DL beam.
A method for wireless communication at a base station, comprising:
- transmitting a downlink (DL) signal on one or more DL beams;
- receiving, on at least one of a resource or a waveform, a scheduling request message from a user equipment (UE);
- identifying, based at least in part on the resource or the waveform, a selected DL beam of the one or more DL beams for communications from the base station to the UE, the selected beam associated with one or more uplink beams at the base station by beam correspondence;
- and
- transmitting one or more subsequent messages to the UE using the selected DL beam.
An apparatus for wireless communication at a user equipment (UE), comprising:
- a processor,
- memory coupled with the processor;
- and
- instructions stored in the memory and executable by the processor to cause the apparatus to:
- receive a downlink (DL) signal from a base station on one or more DL beams;
- select a DL beam of the one or more DL beams for communications from the base station to the UE;
- select a resource or a waveform for uplink transmission, the resource or the waveform corresponding to the selected DL beam of the one or more DL beams and selected based at least in part on a beam correspondence between the selected DL beam and one or more uplink beams at the base station;
- and
- transmit a scheduling request message to the base station using at least one of the resource or the waveform selected based at least in part on the selected DL beam.
An apparatus for wireless communication at a base station, comprising:
- a processor,
- memory coupled with the processor;
- and
- instructions stored in the memory and executable by the processor to cause the apparatus to:
- transmit a downlink (DL) signal on one or more DL beams;
- receive, on at least one of a resource or a waveform, a scheduling request message from a user equipment (UE);
- identify, based at least in part on the resource or the waveform, a selected DL beam of the one or more DL beams for communications from the base station to the UE, the selected beam associated with one or more uplink beams at the base station by beam correspondence;
- and
- transmit one or more subsequent messages to the UE using the selected DL beam.
Dependencies are inferred from the claim text.