Two-step RACH procedure for NR reduced capability UE
AssigneeQUALCOMM Incorporated
InventorsHung Dinh Ly, Wanshi Chen, Jing Lei
Life of this patent
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Abstract
A random access configuration information having a plurality of random access configurations that may be utilized by UE to provide coverage enhancements for a two-step RACH process. The apparatus receives, from a base station, random access configuration information. The random access configuration information comprising a plurality of random access configurations. The apparatus selects one of the plurality of random access configurations. The apparatus generates a first random access message having a preamble and a payload, based on the selected random access configuration. The apparatus transmits the first random access message to the base station to initiate a random access procedure.
Claims30
A method of wireless communication performed by a user equipment (UE), the method comprising:
- receiving, from a network entity, random access configuration information comprising a plurality of random access configurations associated with a specific type of random access procedure, each of the plurality of random access configurations indicating different random access parameters for different random access message configurations in the specific type of random access procedure;
- selecting a random access configuration of the plurality of random access configurations;
- generating a first random access message having a preamble and a payload, based on the selected random access configuration;
- and
- transmitting, to the network entity, the first random access message to initiate the specific type of random access procedure.
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive, from a network entity, random access configuration information, comprising a plurality of random access configurations associated with a specific type of random access procedure, each of the plurality of random access configurations indicating different random access parameters for different random access message configurations in the specific type of random access procedure;
- select a random access configuration of the plurality of random access configurations;
- generate a first random access message having a preamble and a payload, based on the selected random access configuration;
- and
- transmit, to the network entity, the first random access message to initiate the specific type of random access procedure.
A method of wireless communication at a network entity, the method comprising:
- transmitting, to a user equipment (UE), random access configuration information for a random access procedure, wherein the random access configuration information comprises a plurality of random access configurations associated with a specific type of random access procedure, each of the plurality of random access configurations indicating different random access parameters for different random access message configurations in the specific type of random access procedure;
- receiving, from the UE, a first random access message to initiate the specific type of random access procedure, the first random access message comprising a preamble and a payload, wherein configuration of the preamble and the payload is based on one of the plurality of random access configurations;
- processing the first random access message;
- generating a second random access message in response to the first random access message;
- and
- transmitting, to the UE, the second random access message.
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit, to a user equipment (UE), random access configuration information for a random access procedure, wherein the random access configuration information comprises a plurality of random access configurations associated with a specific type of random access procedure, each of the plurality of random access configurations indicating different random access parameters for different random access message configurations in the specific type of random access procedure;
- receive, from the UE, a first random access message to initiate the specific type of random access procedure, the first random access message comprising a preamble and a payload, wherein configuration of the preamble and the payload is based on one of the plurality of random access configurations;
- process the first random access message;
- generate a second random access message in response to the first random access message;
- and
- transmit, to the UE, the second random access message.
Dependencies are inferred from the claim text.