Beam-specific coverage enhancement for random access procedure
AssigneeQUALCOMM Incorporated
InventorsMahmoud TAHERZADEH BOROUJENI, Tao LUO
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Abstract
Aspects provide various beam-specific coverage enhancement techniques for a random access channel (RACH) procedure. A scheduling entity can apply a beam-specific coverage enhancement technique to one or more random access messages associated with a random access procedure. The beam-specific coverage enhancement technique can be selectively applied on a predetermined beam or a subset of beams.
Claims30
A method of wireless communication at a user equipment (UE), comprising:
- receiving, from a scheduling entity, system information in a beam sweep comprising a plurality of beams;
- identifying, based on the system information, one or more beams of the plurality of beams configured to use a coverage enhancement technique in a random access procedure;
- and
- exchanging, with the scheduling entity, at least one random access message associated with the random access procedure on the one or more beams according to the coverage enhancement technique.
A user equipment (UE) for wireless communication, comprising:
- a communication interface;
- a memory;
- and
- a processor operatively coupled with the communication interface and the memory,
- wherein the processor and the memory are configured to:
- receive, via the communication interface, system information transmitted by a scheduling entity in a beam sweep comprising a plurality of beams;
- identify, based on the system information, one or more beams of the plurality of beams configured to use a coverage enhancement technique in a random access procedure;
- and
- exchange, via the communication interface, with the scheduling entity, at least one random access message associated with the random access procedure on the one or more beams according to the coverage enhancement technique.
A method of wireless communication at a scheduling entity, comprising:
- transmitting system information in a beam sweep comprising a plurality of beams, the system information identifying one or more beams of the plurality of beams configured to use a coverage enhancement technique in a random access procedure;
- receiving, from a user equipment (UE), a random access request associated with the random access procedure;
- and
- transmitting, to the UE, a random access response (RAR) associated with the random access procedure,
- wherein at least one of the random access request or the RAR is configured according to the coverage enhancement technique corresponding to the one or more beams.
A scheduling entity for wireless communication, comprising:
- a communication interface;
- a memory;
- and
- a processor operatively coupled with the communication interface and the memory,
- wherein the processor and the memory are configured to:
- transmit, via the communication interface, system information in a beam sweep comprising a plurality of beams, the system information identifying one or more beams of the plurality of beams configured to use a coverage enhancement technique in a random access procedure;
- receive, via the communication interface, from a user equipment (UE), a random access request associated with the random access procedure;
- and
- transmit, via the communication interface to the UE, a random access response (RAR) associated with the random access procedure,
- wherein at least one of the random access request or the RAR is configured according to the coverage enhancement technique corresponding to the one or more beams.
Dependencies are inferred from the claim text.