公开(公告)号：US20230094211A1

公开(公告)日：2023-03-30

申请号：US17904643

申请日：2021-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Myungjune YOUN ,  Jian XU ,  Daewook BYUN

IPC: H04W36/00 ,  H04W36/12 ,  H04W36/14 ,  H04W36/18

Abstract: A method and apparatus for support of service continuity between stand-alone non-public network (SNPN) and public land mobile network (PLMN) is provided. A wireless device transmits, to an access and mobility management function (AMF) of a source network, a protocol data unit (PDU) session establishment request to establish a PDU session with the source network via a non-3GPP interworking function (N3IWF) of the source network. The PDU session establishment request includes information informing that data delivery is not available via the PDU session. The wireless device determines to move from the source network to a target network, and transmits, to a user plane function (UPF) of the source network, mobility information informing that the wireless device moves from the source network to the target network.

公开(公告)号：US20230083985A1

公开(公告)日：2023-03-16

申请号：US17759186

申请日：2021-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W76/20 ,  H04W76/12 ,  H04W76/19 ,  H04W76/30

Abstract: A method and apparatus for fast small data transmission in a wireless communication system is provided. A last serving RAN node receives, from the wireless device and via a new RAN node, an AS-RAI related to early data transmission. A last serving RAN node decides whether a UE context relocation to the new RAN node for the wireless device is required or not based on the received AS-RAI. A last serving RAN node transmits, to the new RAN node, an RRC message based on the decision.

公开(公告)号：US20220303946A1

公开(公告)日：2022-09-22

申请号：US17636555

申请日：2020-08-31

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Hyunjung CHOE ,  Jian XU ,  Daewook BYUN

IPC: H04W68/00 ,  H04W76/20 ,  H04W74/08

Abstract: A method and apparatus for support of CU-DU split in MT-EDT procedure in a wireless communication system is provided. A Central Unit (CU) of a Radio Access Network (RAN node) receives, from a Distributed Unit (DU) of the RAN node, second information related to a transport block used for the wireless device. The CU decides a Radio Resource Control (RRC) state for transmitting the downlink (DL) data to the wireless device based on the first information related to the DL data and the second information related to the transport block.

公开(公告)号：US20220132600A1

公开(公告)日：2022-04-28

申请号：US17310029

申请日：2019-12-31

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W76/10 ,  H04W76/30

Abstract: Provided are a method for early data transmission. According to an embodiment of the present disclosure, the method includes transmitting a radio resource control (RRC) connection resume request message to a control plane (CP) of central unit (CU) of the network node, receiving information informing that downlink (DL) data exists from the CP, receiving DL data from a user plane (UP) of the CU, transmitting the DL data to a wireless device in response to the information, upon receiving the DL data, and releasing transmission resources after transmitting the DL data.

公开(公告)号：US20220104299A1

公开(公告)日：2022-03-31

申请号：US17422999

申请日：2020-03-12

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W76/19 ,  H04W76/22 ,  H04W76/27

Abstract: A method and apparatus for small data transmission without a path switch procedure in a wireless communication system is provided. A new gNB, which is a radio access network (RAN) node to which a wireless device attempts a connection resume procedure while in an inactive state, receives an anchor kept indication and/or a small data indication from a last serving gNB. The anchor kept indication indicates that the last serving gNB keeps a user equipment (UE) context and/or a UE-associated NG connection with the core network. The small data indication indicates not relocating a UE context from the last serving gNB to the new gNB.

公开(公告)号：US20200260410A1

公开(公告)日：2020-08-13

申请号：US16859428

申请日：2020-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU ,  Seokjung KIM ,  Jaewook LEE

IPC: H04W68/02 ,  H04W88/16 ,  H04W76/28

Abstract: A method for a wireless device in a wireless communication system includes receiving a paging from a distribution unit (DU) of a base station; and upon receiving the paging message, initiating a service request procedure. Further, the paging is based on paging information transmitted from a central unit (CU) of the base station to the DU of the base station. The paging information includes paging discontinuous reception (DRX) information and paging priority information. The DU of the base station has a radio link control (RLC) layer, a media access control (MAC) layer and a physical layer of the base station. In addition, the CU of the base station has a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, and a packet data convergence protocol (PDCP) layer of the base station.

公开(公告)号：US20200022044A1

公开(公告)日：2020-01-16

申请号：US16481818

申请日：2018-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W36/02 ,  H04W36/08 ,  H04W36/30 ,  H04W76/27 ,  H04W36/14 ,  H04W72/04 ,  H04W72/12

Abstract: A method for managing a terminal context and a device for supporting the same are presented. The method comprises the steps of: receiving, from a first base station, a data forwarding indicator for indicating uplink data to be forwarded when the uplink data is generated; receiving uplink data from a terminal in an RRC inactive state; and forwarding, to the first base station, the uplink data according to the data forwarding indicator.

公开(公告)号：US20190387444A1

公开(公告)日：2019-12-19

申请号：US16064832

申请日：2018-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU ,  Jaewook LEE ,  Seokjung KIM

IPC: H04W36/02 ,  H04W36/06 ,  H04W36/00

Abstract: Provided are a method in which a source distribution unit (DU) of a base station stops transmitting data to a user equipment (UE) in a wireless communication system, and an apparatus supporting the method. The method may include: receiving, from a central unit (CU) of the base station, a message indicating to stop transmitting data to the UE; and stopping transmitting data to the UE, upon receiving the message from the CU of the base station.

公开(公告)号：US20190261314A1

公开(公告)日：2019-08-22

申请号：US16316243

申请日：2017-07-07

Applicant: LG Electronics Inc.

Inventor： Daewook BYUN ,  Jian XU ,  Seokjung KIM

IPC: H04W68/06 ,  H04W8/08 ,  H04W8/10 ,  H04W68/08

Abstract: Provided are a method by which an access and mobility function (AMF) in a wireless communication system selectively alters a tracking area set, and a device supporting the method. The method may comprise the steps of: receiving a plurality of tracking area sets from a base station; receiving, from the base station, information about the mobility of a terminal; and selecting any one tracking area set that corresponds to the received terminal mobility information.

公开(公告)号：US20180302878A1

公开(公告)日：2018-10-18

申请号：US15951936

申请日：2018-04-12

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jaewook LEE ,  Jian XU ,  Seokjung KIM

IPC: H04W68/02 ,  H04W76/28 ,  H04W88/16

Abstract: Provided are a method of transmitting a paging message and a device supporting the method. According to one embodiment of the present invention, a method for transmitting a paging message in a wireless communication system includes: receiving a paging information from a Central Unit (CU) of the base station; and transmitting the paging message based on the paging information to a User Equipment (UE), wherein the DU is a lower layer of the base station, and the CU is a higher layer of the base station.