公开(公告)号：US12302179B2

公开(公告)日：2025-05-13

申请号：US17802513

申请日：2021-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Geumsan Jo ,  Heejeong Cho

IPC: H04W36/00 ,  H04W80/02

Abstract: The present invention relates to a method of performing a handover procedure by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of receiving a handover command containing information about at least one COUNT value from a first network; establishing a first Packet Data Convergence Protocol (PDCP) entity associated with a second network while maintaining a second PDCP entity associated with the first network; performing a random access procedure with the second network; and based on a handover failure with the second network being detected, transmitting a message for informing the handover failure to the first network with setting at least one state variable for the first PDCP entity according to the at least one COUNT value.

公开(公告)号：US12096273B2

公开(公告)日：2024-09-17

申请号：US17607360

申请日：2020-04-28

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae Lee ,  Laeyoung Kim ,  Heejeong Cho

IPC: H04W28/02 ,  H04W92/18

CPC classification number: H04W28/0273 ,  H04W28/0263 ,  H04W28/0268 ,  H04W92/18

Abstract: A method and apparatus for service data adaptation protocol (SDAP) configuration for a destination in sidelink communication is provided. A wireless device establishes a service data adaptation protocol (SDAP) entity based on a SDAP configuration per destination of a sidelink communication. This can be achieved by the wireless device receiving a configuration of one or more sidelink radio bearers (SLRBs), which includes an SDAP configuration for each of the one or more SLRBs. Each SDAP configuration, in turn, includes a list of Quality of Service Flow Identities (QFIs) for a corresponding destination, from among one or more destinations, to be mapped to a corresponding SLRB. One or more transmitting SDAP entities can then be established for each of the one or more destinations.

公开(公告)号：US12047809B2

公开(公告)日：2024-07-23

申请号：US17296602

申请日：2020-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae Lee ,  Sunyoung Lee ,  Heejeong Cho ,  Eunjong Lee

IPC: H04W28/00 ,  H04L1/1812 ,  H04W28/04 ,  H04W28/06

CPC classification number: H04W28/04 ,  H04L1/1812 ,  H04W28/065

Abstract: A method and apparatus for reconstruction of a protocol data unit (PDU) for fast and reliable retransmission of a service data unit (SDU) after maximum retransmission is provided. Upon determining that a hybrid automatic repeat request (HARQ) retransmission of a first PDU including a specific SDU is unsuccessful, a wireless device constructs a second PDU including the first SDU which is prioritized to be included in the second PDU.

公开(公告)号：US12022331B2

公开(公告)日：2024-06-25

申请号：US17430696

申请日：2020-03-25

Applicant: LG ELECTRONICS INC.

Inventor： Sunghoon Jung ,  Hongsuk Kim ,  Heejeong Cho

IPC: H04W36/30 ,  H04W36/00

CPC classification number: H04W36/0058 ,  H04W36/0069 ,  H04W36/30

Abstract: A method and apparatus for an indication of serving cell communication quality to a target cell during mobility in a wireless communication system is provided. A wireless device, which keeps communicating with a source node while initiating a mobility from the source node to a target node, transmits, to the target node, information related to a communication quality of the source node.

公开(公告)号：US12010577B2

公开(公告)日：2024-06-11

申请号：US17422012

申请日：2020-02-10

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Heejeong Cho ,  Jian Xu ,  Seokjung Kim

IPC: H04W36/08 ,  H04W68/00 ,  H04W88/14

CPC classification number: H04W36/08 ,  H04W68/005 ,  H04W88/14

Abstract: A method and apparatus for lossless uplink data transmission of IAB network in a wireless communication system will be provided. A user plane (UP) of an integrated access and backhaul (IAB)-donor central unit (CU) in a wireless communication system receives, from a wireless device, uplink data through a source IAB-node. A UP of an IAB-donor CU receives, from the source IAB-node, at least one of a delivery status of the uplink data on the source IAB-node, wherein the wireless device handovers from the source IAB-node to a target IAB-node. A UP of an IAB-donor CU transmits, to a unit-control plane (CP) of the IAB-donor CU, a first message based on the at least one of the delivery status of the uplink data.

公开(公告)号：US11974183B2

公开(公告)日：2024-04-30

申请号：US18087383

申请日：2022-12-22

Applicant: LG Electronics Inc.

Inventor： Sunghoon Jung ,  Hongsuk Kim ,  Heejeong Cho

IPC: H04W36/08 ,  H04W8/08 ,  H04W36/32 ,  H04W76/27 ,  H04W76/30

CPC classification number: H04W36/08 ,  H04W8/08 ,  H04W36/32 ,  H04W76/27 ,  H04W76/30

Abstract: A method and apparatus for a source cell release indication for dual stack mobility in a wireless communication system is provided. A wireless device, which initiates a mobility from a source node to a target node, keeps communicating with the source node, and receives, from the target node, an indication. Upon receiving the indication, the wireless device stops communicating with the source node.

公开(公告)号：US11924891B2

公开(公告)日：2024-03-05

申请号：US17594483

申请日：2020-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Heejeong Cho ,  Seungjune Yi ,  Jeonggu Lee

IPC: H04W74/08 ,  H04W74/00 ,  H04W80/02

CPC classification number: H04W74/085 ,  H04W74/004 ,  H04W80/02

Abstract: In the present disclosure, a UE transmits a random access preamble (RAP) on a physical random access channel (PRACH) and a common control channel (CCCH) service data unit (SDU) on a physical uplink channel (PUSCH). The UE receives a medium access control (MAC) protocol data unit (PDU) based on transmitting the RAP and the CCCH SDU. The MAC PDU may include a MAC PDU associated with a contention resolution identity (CRID) in the MAC PDU. The UE determines whether a MAC SDU is present or not in the MAC PDU, based on the MAC SDU indicator associated with a CRID in the MAC PDU in a state in which the CRID matches the CCCH SDU.

公开(公告)号：US11606715B2

公开(公告)日：2023-03-14

申请号：US17264778

申请日：2019-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung Lee ,  Heejeong Cho

IPC: H04W28/02 ,  H04W72/0453 ,  H04W72/12 ,  H04W88/14

Abstract: In the present disclosure, a first node performs buffer status reporting including information regarding a total amount of UL data. The first node determines the total amount of UL data for the buffer status reporting based on an amount of UL data for which the UL resources are actually allocated to the second node by the first node.

公开(公告)号：US11576096B2

公开(公告)日：2023-02-07

申请号：US16833358

申请日：2020-03-27

Applicant: LG Electronics Inc.

Inventor： Sunghoon Jung ,  Hongsuk Kim ,  Heejeong Cho

IPC: H04W36/08 ,  H04W36/32 ,  H04W8/08 ,  H04W76/27 ,  H04W76/30

Abstract: A method and apparatus for a source cell release indication for dual stack mobility in a wireless communication system is provided. A wireless device, which initiates a mobility from a source node to a target node, keeps communicating with the source node, and receives, from the target node, an indication. Upon receiving the indication, the wireless device stops communicating with the source node.

公开(公告)号：US11343805B2

公开(公告)日：2022-05-24

申请号：US16593936

申请日：2019-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Heejeong Cho ,  Genebeck Hahn ,  Ilmu Byun

IPC: H04W72/04 ,  H04W76/10 ,  H04L1/18 ,  H04W72/08 ,  H04W72/10 ,  H04W88/02 ,  H04W88/08

Abstract: The present description provides a method for transmitting uplink (UL) data in a wireless communication system. A method, which is carried out by means of a terminal, comprises the steps of: receiving, from a base station, control information related to transmission of low latency radio (LLR) service data; transmitting, on the basis of the received control information, the low latency radio service data to the base station through an urgent channel, wherein the control information comprises urgent channel information and/or urgent bearer information defined for transmission of the low latency radio service data.