公开(公告)号：US20210007073A1

公开(公告)日：2021-01-07

申请号：US16976689

申请日：2019-02-25

Applicant: LG Electronics Inc.

Inventor： Jongyoul LEE ,  Hanbyul SEO ,  Seungmin LEE ,  Hyukjin CHAE

IPC: H04W56/00 ,  H04W52/14 ,  H04W4/40 ,  H04W72/08 ,  H04W76/14 ,  H04W92/18

Abstract: The present document relates to a method for performing a vehicle-to-X (V2X) transmission performed by a terminal supporting carrier aggregation (CA) of a plurality of carriers in a wireless communication system, wherein the method determines a first carrier to be used as a synchronization reference among the plurality of carriers and performs the V2X transmission on the basis of the determination, wherein at least one carrier of the carriers not used as the synchronization reference is a second carrier, and the terminal reduces the transmission power on the second carrier, maintains the transmission of a packet on the second carrier, or drops a packet on the second carrier.

公开(公告)号：US20240048284A1

公开(公告)日：2024-02-08

申请号：US17766361

申请日：2020-10-06

Applicant: LG Electronics Inc.

Inventor： Youngdae LEE ,  Giwon PARK ,  Hanbyul SEO ,  Jongyoul LEE

IPC: H04L1/1822 ,  H04L1/1867 ,  H04L1/1829

CPC classification number: H04L1/1822 ,  H04L1/1867 ,  H04L1/1861

Abstract: A method and apparatus for clearing a retransmission resource based on hybrid automatic repeat request acknowledgment (HARQ-ACK) in a wireless communication system is provided. A first wireless device configured to operate in a wireless communication system transmits, to a second wireless device, a data unit by using a first resource in a hybrid automatic repeat request (HARQ) process. Upon receiving an acknowledgement (ACK) in response to the data unit, the first wireless device clears a second resource to be used for retransmission of the data unit, and flushes a buffer of the HARQ process.

公开(公告)号：US20230362773A1

公开(公告)日：2023-11-09

申请号：US18011456

申请日：2021-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Seoyoung BACK ,  Giwon PARK ,  Seungmin LEE ,  Jongyoul LEE

IPC: H04W36/30 ,  H04W36/00

CPC classification number: H04W36/305 ,  H04W36/033 ,  H04W88/04

Abstract: One embodiment is a method for operating a relay user equipment (UE) related to sidelink relay in a wireless communication system, the method comprising: a relay UE establishing a connection with a remote UE; the relay UE transmitting or receiving a packet related to the remote UE to/from a base station; and the relay UE declaring a radio link failure (RLF), wherein the RLF is related to a Uu link, and the relay UE transmits a message notifying of the RLF to the remote UE, the message being related to a relay reselection trigger.

公开(公告)号：US20230361918A1

公开(公告)日：2023-11-09

申请号：US18222194

申请日：2023-07-14

Applicant: LG Electronics Inc.

Inventor： Youngdae LEE ,  Giwon PARK ,  Hanbyul SEO ,  Jongyoul LEE

IPC: H04W72/02 ,  H04W28/26 ,  H04W72/23 ,  H04W72/56 ,  H04L1/08 ,  H04W72/543

CPC classification number: H04L1/08 ,  H04W28/26 ,  H04W72/02 ,  H04W72/23 ,  H04W72/543 ,  H04W72/56

Abstract: According to an embodiment, a method performed by a first wireless device in a wireless communication system includes: reserving a set of resources comprising at least a first resource for an initial transmission and a second resource for a retransmission; creating a data unit based on the first resource and the second resource; performing the initial transmission of the data unit to a second wireless device by using the first resource; determining whether to reserve a resource for the retransmission of the data unit based on at least one of a congestion level and/or a priority of the data unit; removing the second resource and reserving a third resource as the resource for the retransmission of the data unit; and performing the retransmission of the data unit by using the third resource to the second wireless device.

公开(公告)号：US20230353290A1

公开(公告)日：2023-11-02

申请号：US17801437

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Seoyoung BACK ,  Seungmin LEE ,  Giwon PARK ,  Jongyoul LEE

IPC: H04L1/1867 ,  H04W72/20

CPC classification number: H04L1/189 ,  H04W72/20 ,  H04W88/04

Abstract: An embodiment relates to a method for an operation of a sidelink relay UE in a wireless communication system, the method comprising: a step in which the relay UE receives a first signal from a source UE; a step in which the relay UE transmits a second signal based on the first signal to a destination UE; and a step in which the relay UE performs retransmission of the second signal to the destination UE, wherein, on the basis that the relay UE is configured to transmit a reception acknowledgement response to the first signal, the number of times that the relay UE can retransmit the second signal is obtained by excluding the number of times that the relay UE has transmitted a reception acknowledgement response to the source UE from a first maximum retransmission number.

公开(公告)号：US20230276461A1

公开(公告)日：2023-08-31

申请号：US17925255

申请日：2021-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Jongyoul LEE ,  Giwon PARK

IPC: H04W72/25 ,  H04L1/1822 ,  H04L1/1867 ,  H04W72/02 ,  H04W72/542 ,  H04W72/543 ,  H04W72/566

CPC classification number: H04W72/25 ,  H04L1/1822 ,  H04L1/1887 ,  H04L1/1893 ,  H04W72/02 ,  H04W72/542 ,  H04W72/543 ,  H04W72/566 ,  H04L1/1812

Abstract: A method and apparatus for resource selection for multiple hybrid automatic repeat request (HARQ) processes in a wireless communication system is provided. A wireless device, which is configured with one or more resource pools for autonomous resource selection, determines a number of sidelink processes, and generates a selected sidelink grant for the determined number of the sidelink processes. The wireless device triggers a sidelink resource reselection based on a resource mapped to a specific sidelink process from among the sidelink processes, and reselects sidelink resources mapped to the specific sidelink process from the selected sidelink grant.

公开(公告)号：US20230199875A1

公开(公告)日：2023-06-22

申请号：US17997208

申请日：2021-04-28

Applicant: LG ELECTRONICS INC.

Inventor： Seoyoung BACK ,  Giwon PARK ,  Jongyoul LEE

IPC: H04W76/14 ,  H04W72/543

CPC classification number: H04W76/14 ,  H04W72/543

Abstract: An embodiment provides an operation method of a relay UE related to a sidelink relay in a wireless communication system, the method comprising: receiving, by a relay UE, a relay request from a first remote UE; and determining, by the relay UE, whether to accept the relay request of the first remote UE, wherein the relay request includes first quality of service (QoS)-related information, and the relay UE accepts the relay request on the basis that resource allocation satisfying the first QoS-related information to the first remote UE is possible.

公开(公告)号：US20230164875A1

公开(公告)日：2023-05-25

申请号：US17995376

申请日：2021-03-25

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Seungmin LEE ,  Giwon PARK ,  Jongyoul LEE

IPC: H04W76/28 ,  H04W76/23

CPC classification number: H04W76/28 ,  H04W76/23

Abstract: A method and apparatus for bandwidth parts (BWPs) deactivation and discontinuous reception (DRX) for communication between wireless devices is provided. A first wireless device operating in a wireless communication system performs transmission of a media access control (MAC) protocol data unit (PDU) to a second wireless device, and starts a discontinuous (DRX) hybrid automatic repeat request (HARQ) round trip time (RTT) timer for a HARQ process ID after end of a specific repetition of the transmission of the MAC PDU. The first wireless device starts a DRX retransmission timer based on 1) the DRX HARQ RTT timer being expired, and 2) a number of transmissions of the MAC PDU not reaching a maximum number of transmissions, and monitors a physical downlink control channel (PDCCH) carrying a sidelink retransmission grant during an active time including a time interval for which the DRX retransmission timer is running.

公开(公告)号：US20230156602A1

公开(公告)日：2023-05-18

申请号：US17912433

申请日：2021-03-10

Applicant: LG Electronics Inc.

Inventor： Giwon PARK ,  Seoyoung BACK ,  Jongyoul LEE

IPC: H04W52/02 ,  H04W72/20 ,  H04W76/28 ,  H04L1/1829

CPC classification number: H04W52/0235 ,  H04L1/1854 ,  H04W72/20 ,  H04W76/28 ,  H04L1/1812

Abstract: Proposed is a method for performing wireless communication by a first device. The method may comprise the steps of: receiving a physical sidelink control channel (PSCCH) from a second device; receiving a physical sidelink shared channel (PSSCH) related to the PSCCH from the second device, wherein sidelink control information (SCI) is received via the PSCCH or the PSSCH related to the PSCCH, and the SCI includes information indicating whether the PSSCH corresponds to last PSSCH transmission: determining a PSFCH resource on the basis of a slot index and a sub-channel index which are related to the PSSCH; transmitting SL HARQ ACK information to the second device via the PSFCH resource; and entering a sleep state on the basis that the SCI includes information indicating that the PSSCH corresponds to the last PSSCH transmission, and the first device transmits the SL HARQ ACK information via the PSFCH resource.

公开(公告)号：US20230095483A1

公开(公告)日：2023-03-30

申请号：US17904018

申请日：2021-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Seoyoung BACK ,  Giwon PARK ,  Seungmin LEE ,  Jongyoul LEE

IPC: H04W76/28 ,  H04W52/02

Abstract: An embodiment relates to a method for a sidelink discontinuous reception (DRX)-related operation of a second user equipment (UE) in a wireless communication system, the method comprising: a step in which a second UE enters a sleep state; and a step in which the second UE switches to an awake state in a predetermined interval and receives a broadcast signal from a first UE, wherein the broadcast signal is received on a resource pool configured only for a sidelink broadcast.