Patent ID: 11910468
Assignee: KT CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A user equipment (UE) performing communication using a non-terrestrial network, the UE comprising:
a receiver configured to receive system information comprising reference round trip delay offset information of a non-terrestrial network cell and configuration information for performing communication using the non-terrestrial network cell; and
a controller configured to perform a random access procedure in the non-terrestrial network cell and control a discontinuous reception (DRX) operation based on the configuration information,
wherein the reference round trip delay offset information is used to calculate a round trip delay between the UE and a network node in the non-terrestrial network cell, and
further comprises a transmitter configured to transmit a message 3 (MSG 3) for a contention-based random access procedure,
wherein the controller start a timer for contention resolution when a time according to the round trip delay between the UE and the network node calculated using the reference round trip delay offset information elapses after transmission of the message 3.