Two step rach based l1/l2 inter-cell mobility
AssigneeQUALCOMM Incorporated
InventorsYan ZHOU, Qian ZHANG, Tao LUO
Life of this patent
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Abstract
Method and apparatus to configure a UE to initiate a two-step RACH process to perform a PCI selection process using L1/L2 messaging. The apparatus determines at least one target PCI in preparation of performing a PCI selection procedure. The apparatus selects a first target PCI that meets a threshold to initiate the PCI selection procedure. The apparatus transmits a first random access response message to the first target PCI. The apparatus monitors for a second random access response message from the first target PCI.
Claims30
An apparatus for wireless communication at a user equipment (UE), comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- determine at least one target physical cell identifier (PCI) in preparation of performing a PCI selection procedure;
- select a first target PCI that meets a threshold to initiate the PCI selection procedure;
- transmit a first random access response message to the first target PCI;
- and
- monitor for a second random access response message from the first target PCI.
A method of wireless communication at a user equipment (UE), comprising:
- determining at least one target physical cell identifier (PCI) in preparation of performing a PCI selection procedure;
- selecting a first target PCI that meets a threshold to initiate the PCI selection procedure;
- transmitting a first random access response message to the first target PCI;
- and
- monitoring for a second random access response message from the first target PCI.
An apparatus for wireless communication at a base station, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive, from a user equipment (UE), a first random access response message for a first target PCI to initiate a PCI selection procedure;
- transmit, to the UE, a second random access response message from the first target PCI;
- and
- monitor for an uplink signal from the UE to complete the PCI selection procedure.
A method of wireless communication at a base station, comprising:
- receiving, from a user equipment (UE), a first random access response message for a first target PCI to initiate a PCI selection procedure;
- transmitting, to the UE, a second random access response message from the first target PCI;
- and
- monitoring for an uplink signal from the UE to complete the PCI selection procedure.
Dependencies are inferred from the claim text.