Method and device for timing control in a non-terrestrial network
AssigneesHyundai Motor Company, Kia Corporation, Inha University Research and Business Foundation
InventorsYoung Kil Suh, Gene Back Hahn, Ui Hyun Hong, Duk Kyung Kim
Life of this patent
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Abstract
A method and a device for timing control in a non-terrestrial network are provided. The method includes: transmitting, to a UE, first system information including a first scheduling offset; determining a first update period of the first scheduling offset; transmitting, to the UE, a first message including information about the first update period; and transmitting, to the UE, a second message including information about a scheduling offset updated according to the first update period.
Claims20
A method of a satellite, the method comprising:
- transmitting first system information including a first scheduling offset to a user equipment (UE);
- determining a first update periodicity of the first scheduling offset;
- transmitting a first message including information on the first update periodicity to the UE;
- and
- transmitting a second message including information on a scheduling offset updated according to the first update periodicity to the UE,
- wherein each of the first scheduling offset and the updated scheduling offset is used to determine an uplink transmission timing at the UE.
A method of a user equipment (UE), the method comprising:
- receiving first system information including a first scheduling offset from a satellite;
- receiving a first message including information on a first update periodicity of the first scheduling offset from the satellite;
- receiving a second message including information on a scheduling offset updated according to the first update periodicity from the satellite;
- determining an uplink transmission timing based on the updated scheduling offset;
- and
- performing uplink transmission based on the uplink transmission timing.
A method of a first cell, the method comprising:
- performing uplink communication with a user equipment (UE) according to an uplink transmission timing determined based on a first scheduling offset of the first cell;
- determining a handover based on a measurement result received from the UE;
- transmitting a handover (HO) request message to a second cell;
- receiving a HO request acknowledgement (ACK) message including a second scheduling offset of the second cell from the second cell;
- and
- transmitting a radio resource control (RRC) reconfiguration message including information on the second scheduling offset to the UE.
Dependencies are inferred from the claim text.