Method for reporting mobility history of terminal and apparatus for supporting same
Disclosed are a method by which a terminal reports a mobility history, and an apparatus for supporting the same. The method comprises the steps of: updating, according to a movement of the terminal, a mobility history including identification information on a beam in which the terminal has stayed and a stay time in the beam; allowing the terminal to enter an RRC connection state; and transmitting the stored identification information and the stay time to a network.
1. A method in which a user equipment (UE) reports a mobility history in a wireless communication system, the method comprising:
storing a valid reference signal (RS) identity (ID) related to a beam in a field related to a beam ID and a stay time, during which the UE stays in the beam, in a mobility history based on a change of the beam;
storing, a valid RS ID related to a transmission reception point (TRP) during which the UE stays in a field related to a TRP ID and a stay time in the TRP, in the mobility history based on a change of the TRP;
allowing the UE to enter an RRC connected state; and
transmitting the mobility history to a network,
wherein the TRP is an area formed by a data transmission point and a data reception point, and
wherein the TRP includes a plurality of beam areas.
2. The method of claim 1 , wherein the mobility history comprises identification information about a cell in which the UE stays and a stay time in the cell.
3. The method of claim 2 , wherein the identification information about the cell is a global ID of the cell.
4. The method of claim 1 , further comprising:
recording a cell ID of a cell in which the UE stays and a stay time in the cell in the mobility history based on invalidity of the beam.
5. A user equipment (UE) for reporting a mobility history in a wireless communication system, the UE comprising:
a memory;
a transceiver; and
a processor operatively connected to the memory and the transceiver, wherein the processor is configured to:
store a valid reference signal (RS) identity (ID) related to a beam in a field related to a beam ID and a stay time, during which the UE stays in the beam, in a mobility history based on a change of the beam;
store, a valid RS ID related to a transmission reception point (TRP) during which the UE stays in a field related to a TRP ID and a stay time in the TRP, in the mobility history based on a change of the TRP;
allow the UE to enter an RRC connected state; and
transmit the mobility history to a network,
wherein the TRP is an area formed by a data transmission point and a data reception point, and
wherein the TRP includes a plurality of beam areas.