Method for performing communication by using non-terrestrial network and apparatus thereof
AssigneeKt Corporation
InventorSung-pyo Hong
Life of this patent
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Abstract
Provided are a terminal and a network node and method thereof for performing communication in a non-terrestrial network. The method includes receiving system information including reference round trip delay offset information of a non-terrestrial network cell, performing a random access procedure in the non-terrestrial network cell; receiving configuration information for performing communication using the non-terrestrial network cell, and controlling a discontinuous reception (DRX) operation on the basis of the configuration information.
Claims12
A method for performing communication using a non-terrestrial network by a user equipment (UE), the method comprising:
- receiving system information comprising reference round trip delay offset information of a non-terrestrial network cell;
- performing a random access procedure in the non-terrestrial network cell;
- receiving configuration information for performing communication using the non-terrestrial network cell;
- and
- controlling 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
- wherein the performing the random access comprises:
- transmitting a message 3 (MSG 3) for a contention-based random access procedure;
- starting 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.
A method for performing communication using a non-terrestrial network with a user equipment (UE) by a network node, the method comprising:
- transmitting system information comprising reference round trip delay offset information of a non-terrestrial network cell;
- performing a random access procedure with the UE in the non-terrestrial network cell;
- and
- transmitting configuration information for performing communication using the non-terrestrial network cell,
- 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
- wherein the performing the random access comprises:
- receiving a message 3 (MSG 3) from the UE for a contention-based random access procedure, and
- the UE starts 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.
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.
Dependencies are inferred from the claim text.