Method and apparatus for shifting boundary of uplink subframe or uplink slot in wireless communication system
AssigneeLG Electronics Inc.
InventorsYunjung Yi, Byounghoon Kim
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Abstract
A method and apparatus for shifting boundary of an uplink (UL) subframe and/or UL slot in a wireless communication system is provided. A user equipment (UE) receives information on a timing advance (TA) offset from the network, and shifts the boundary of the UL subframe and/or the UL slot based on a TA and the TA offset. The UE transmits a UL signal as a response to a downlink (DL) signal in the shifted UL subframe and/or UL slot.
Claims9
A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving a synchronization signal/physical broadcast channel block (SSB) from a network;
- obtaining a master information block (MIB) in the SSB;
- receiving, from the network, a system information block 1 (SIB1) based on information included in the MIB for a control resource set (CORESET);
- performing an access to a cell related to the network based on access information included in the SIB1;
- receiving a downlink (DL) data from the network;
- determining an acknowledgement/negative-acknowledgement (ACK/NACK) transmission timing as a timing after a predetermined time interval from an end of a reception of the DL data;
- based on that a processing time of the DL data is less than the predetermined time interval minus an offset, transmitting an ACK/NACK for the DL data to the network by applying the offset to a timing advance (TA) so that the ACK/NACK is transmitted at the offset earlier than the ACK/NACK transmission timing;
- and
- transmitting an UL data to the network by applying the offset to the TA after transmitting the ACK/NACK,
- wherein the offset is configured by the network.
A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
- a memory;
- a transceiver, and
- at least one processor, operably coupled to the memory and the transceiver, configured to:
- control the transceiver to receive a synchronization signal/physical broadcast channel block (SSB) from a network;
- obtain a master information block (MIB) in the SSB;
- control the transceiver to receive, from the network, a system information block 1 (SIB1) based on information included in the MIB for a control resource set (CORESET);
- perform an access to a cell related to the network based on access information included in the SIB 1;
- control the transceiver to receive a downlink (DL) data from the network;
- determine an acknowledgement/negative-acknowledgement (ACK/NACK) transmission timing as a timing after a predetermined time interval from an end of a reception of the DL data;
- based on that a processing time of the DL data is less than the predetermined time interval minus an offset, control the transceiver to transmit an ACK/NACK for the DL data to the network by applying the offset to a timing advance (TA) so that the ACK/NACK is transmitted at the offset earlier than the ACK/NACK transmission timing;
- and
- control the transceiver to transmit an uplink (UL) data to the network by applying the offset to the TA after transmitting the ACK/NACK,
- wherein the offset is configured by the network.
Dependencies are inferred from the claim text.