Rach transmission in a candidate cell for l1 and l2 mobility
AssigneeQUALCOMM Incorporated
InventorsFang YUAN, Yan ZHOU, Tao LUO
Life of this patent
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Abstract
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media for a user equipment (UE) to initiate a layer 1 or layer 2 mobility procedure. The UE receives a configuration of a random access channel (RACH) including RACH occasions for a candidate cell. The UE determines that a condition for a layer 1 or layer 2 mobility procedure to the candidate cell is satisfied. The UE transmits a physical RACH (PRACH) message to the candidate cell to initiate the layer 1 or layer 2 mobility procedure.
Claims30
An apparatus for wireless communication at a user equipment (UE), comprising:
- a transceiver;
- a memory storing computer-executable instructions;
- and
- a processor coupled with the transceiver and the memory and configured to execute the computer-executable instructions to:
- receive, via the transceiver, a configuration of a random access channel (RACH) including RACH occasions for a candidate cell;
- determine that a condition for a layer 1 or layer 2 mobility procedure to the candidate cell is satisfied;
- and
- transmit, via the transceiver, a physical RACH (PRACH) message to the candidate cell to initiate the layer 1 or layer 2 mobility procedure.
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An apparatus for wireless communication at a network node, comprising:
- a transceiver;
- a memory storing computer-executable instructions;
- and
- a processor coupled with the transceiver and the memory and configured to execute the computer-executable instructions to:
- transmit a configuration of a random access channel (RACH) including RACH occasions for a candidate cell;
- and
- receive a physical RACH (PRACH) message in the candidate cell to initiate a layer 1 or layer 2 mobility procedure for a user equipment (UE) from an active serving cell to the candidate cell.
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A method of wireless communication at a user equipment (UE), comprising:
- receiving a configuration of a random access channel (RACH) including RACH occasions for a candidate cell;
- determining that a condition for a layer 1 or layer 2 mobility procedure to the candidate cell is satisfied;
- and
- transmitting a physical RACH (PRACH) message to the candidate cell to initiate the layer or layer 2 mobility procedure.
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Dependencies are inferred from the claim text.