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：US12004029B2

公开(公告)日：2024-06-04

申请号：US17433926

申请日：2020-02-26

Applicant: LG ELECTRONICS INC.

Inventor： Sangwon Kim ,  Youngdae Lee ,  Sunghoon Jung ,  Hongsuk Kim

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/32 ,  H04W76/34

CPC classification number: H04W36/00835 ,  H04W36/0058 ,  H04W36/32 ,  H04W76/34

Abstract: A method and apparatus for mobility condition change based on serving cell quality and connection release in a wireless communication system is provided. A wireless device receives information on a first condition related to a conditional mobility to a target cell, detects a serving cell problem, performs the conditional mobility to the target cell based on a second condition related to a cell selection, and performs a connection release with the target cell.

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：US11812502B2

公开(公告)日：2023-11-07

申请号：US17181933

申请日：2021-02-22

Applicant: LG Electronics Inc.

Inventor： Taehun Kim ,  Hongsuk Kim ,  Jaewook Lee

IPC: H04W8/08 ,  H04W76/27 ,  H04W52/02 ,  H04W28/02 ,  H04W76/28 ,  H04W36/00 ,  H04W74/08 ,  H04W80/02

CPC classification number: H04W8/08 ,  H04W28/02 ,  H04W36/0022 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W74/0833 ,  H04W76/27 ,  H04W76/28 ,  H04W80/02

Abstract: One disclosure of the present specification provides a method for supporting early data transmission (EDT) by a base station. The method may comprise a step of receiving a first message from a mobility management entity (MME). A first NAS message may include downlink data. The method may further comprise a step of confirming that there is no additional data other than the downlink data, on the basis of reception of the first NAS message.

公开(公告)号：US20230262492A1

公开(公告)日：2023-08-17

申请号：US17954990

申请日：2022-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Myoungsoo Kim ,  Sunghoon Jung ,  Hongsuk Kim

IPC: H04W24/08 ,  H04W74/08 ,  H04W76/19

CPC classification number: H04W24/08 ,  H04W74/0841 ,  H04W76/19 ,  H04W80/02

Abstract: A method and apparatus for RACH-less activation in a wireless communication system is provided. The wireless device deactivates a Secondary Cell Group (SCG). The wireless device detects a beam failure of a Primary SCell (PSCell) in the SCG. The wireless device initiates a SCG failure information procedure to report the SCG failure. The wireless device skips a Media Access Control (MAC) reset procedure, wherein the MAC reset procedure includes stopping a Time Alignment Timer (TAT) for the SCG; transmitting SCG failure information. The wireless device determines that a random access procedure is not needed for activation of the SCG, based on the TAT being not expired.

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：US11432204B2

公开(公告)日：2022-08-30

申请号：US16908513

申请日：2020-06-22

Applicant: LG Electronics Inc.

Inventor： Daewook Byun ,  Hongsuk Kim ,  Jian Xu ,  Seokjung Kim

IPC: H04W36/00 ,  H04W36/14

Abstract: A method and apparatus for enhancing a handover procedure for supporting conditional handover in a wireless communication system. A source base station (e.g. source gNB/eNB) receives a message informing that a wireless device is handed over from the source base station to a target base station (e.g. target gNB/eNB). The target base station is one of candidate target base stations in the conditional handover procedure. After receiving the message, the source base station transmits a sequence number (SN) status transfer message to the target base station.

公开(公告)号：US20220217599A1

公开(公告)日：2022-07-07

申请号：US17609199

申请日：2020-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Sunghoon Jung

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/30 ,  H04W76/19

Abstract: The present disclosure relates to handling a connection re-establishment in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving a conditional mobility command; initiating a conditional mobility based on the conditional mobility command; performing a radio link monitoring (RLM) on a source cell during the conditional mobility; and performing a radio resource control (RRC) re-establishment based on that the conditional mobility fails and a radio link failure (RLF) occurs as a result of the RLM.

公开(公告)号：US20220159530A1

公开(公告)日：2022-05-19

申请号：US17665985

申请日：2022-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Sunghoon Jung ,  Sangwon Kim

IPC: H04W36/00 ,  H04W36/30 ,  H04W76/19

Abstract: A method and apparatus for loop problem handling of conditional mobility, e.g., conditional handover (CHO) is provided. A wireless device configured to operate in a wireless communication system receives, from a network node serving the source cell, a mobility command for conditional mobility. The mobility command includes 1) target cell configurations associated to one or more target cells, and 2) information informing that it is allowed to perform the conditional mobility up to a maximum number of trials for the conditional mobility upon detecting a failure. The wireless device selects a cell from among the one or more target cells upon detecting the failure, and performs the conditional mobility by applying a target cell configuration associated to the selected cell, from among the target cell configurations included in the mobility command, based on the information included in the mobility command.

公开(公告)号：US11190997B2

公开(公告)日：2021-11-30

申请号：US16833267

申请日：2020-03-27

Applicant: LG Electronics Inc.

Inventor： Hongsuk Kim ,  Sunghoon Jung ,  Heejeong Cho

IPC: H04W4/00 ,  H04W36/18 ,  H04W36/32 ,  H04W8/08 ,  H04W36/00 ,  H04W24/08

Abstract: The present disclosure relates to method and apparatus for mobility in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: performing a dual active protocol stack (DAPS) mobility procedure for a mobility from a source cell to a target cell while maintaining a radio link for the source cell; performing a radio link monitoring (RLM) comprising a monitoring of a number of consecutive out-of-sync indications received on a radio link for the source cell during the DAPS mobility procedure; and after detecting a radio link failure (RLF) for the source cell based on the RLM, stopping a transmission on the radio link for the source cell during the DAPS mobility procedure.