Techniques for retransmitting random access messages in wireless communications
AssigneeQUALCOMM Incorporated
InventorsJing Lei, Wanshi Chen, Peter Gaal, Joseph Binamira Soriaga
Life of this patent
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Abstract
Aspects described herein relate to determining a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted by the UE in a two-step random access procedure, and based on determining the failure situations associated with reception of the random access message, configuring the parameters of a retransmission and/or retransmitting at least a portion of the random access message.
Claims6
A method for wireless communication, comprising:
- determining, by a user equipment (UE), a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted by the UE in a two-step random access procedure;
- and
- transmitting, by the UE to the base station and based on determining the failure, a retransmission of at least a portion of the random access message, the portion of the random access message comprising a payload of the random access message,
- wherein the retransmission is transmitted on a different beam than the initial transmission, and a switch to the different beam is based on a response message.
An apparatus for wireless communication, comprising:
- a transceiver;
- a memory configured to store instructions;
- and
- one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to:
- determine a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted in a two-step random access procedure;
- and
- transmit, to the base station and based on determining the failure, a retransmission of at least a portion of the random access message, the portion of the random access message comprising a payload of the random access message,
- wherein the one or more processors are configured to transmit the retransmission on a different beam than the initial transmission, and a switch to the different beam is based on a response message.
A non-transitory computer-readable medium, comprising code executable by one or more processors for wireless communications, the code comprising code for:
- determining, by a user equipment (UE), a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted by the UE in a two-step random access procedure;
- and
- transmitting, by the UE to the base station and based on determining the failure, a retransmission of at least a portion of the random access message, the portion of the random access message comprising a payload of the random access message,
- wherein the code for transmitting transmits the retransmission on a different beam than the initial transmission, and a switch to the different beam is based on a response message.
Dependencies are inferred from the claim text.