Patent ID: 11871295
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by a base station in a wireless communication system, the method comprising:
if the base station receives a location report request for a terminal from an access and mobility management function (AMF) entity, identifying whether to transmit, to the AMF entity, last known location information of the terminal identified by the base station and a time stamp associated with the last known location information of the terminal, or to perform a radio access network (RAN) paging for the terminal before reporting a location of the terminal to the AMF entity, while the terminal is in a radio resource control (RRC) inactive state;
while the terminal is in the RRC inactive state, transmitting, to the AMF entity, a first location report including the last known location information of the terminal identified by the base station and the time stamp associated with the last known location information of the terminal, in case that the base station identifies to transmit the last known location information of the terminal identified by the base station and the time stamp associated with the last known location information of the terminal; and
while the terminal is in the RRC inactive state, performing the RAN paging for the terminal before transmitting a second location report including information on the location of the terminal, in case that the base station identifies to perform the RAN paging for the terminal, wherein the location of the terminal is determined based on the performed RAN paging,
wherein a state of the terminal in the AMF entity is a connected state while the terminal is in the RRC inactive state, and reachability of the terminal in the RRC inactive state is managed by the base station based on an area configured for the RAN paging,
wherein the information on the location of the terminal includes an identity of a cell for the terminal, and
wherein the last known location information of the terminal includes an identity of a cell for the terminal.