公开(公告)号：US20200275513A1

公开(公告)日：2020-08-27

申请号：US16797711

申请日：2020-02-21

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Hyunsook KIM ,  Laeyoung KIM ,  Jaehyun KIM ,  Myungjune YOUN

IPC: H04W76/20 ,  H04W48/04

Abstract: A method performed by a terminal operating in a wireless communication system. Based on that the terminal is located in a non-allowed area, and based on the terminal having a pending uplink signaling to inform a change in a Packet Switch (PS) data off status of the terminal, the terminal transmits a service request message to a network node. The service request message includes service type information that is related to the change in the PS data off status of the terminal. The terminal then receives, from the network node, a response message to the service request message.

公开(公告)号：US20190132889A1

公开(公告)日：2019-05-02

申请号：US16092951

申请日：2017-01-09

Applicant: LG Electronics Inc.

Inventor： Jaehyun KIM ,  Taehun KIM ,  Jinsook RYU ,  Sangmin PARK

IPC: H04W76/10 ,  H04W4/70 ,  H04W24/02

Abstract: Provided is a method for a wireless device for transmitting an RRC message according to one disclosure of the present specification. The method may comprise a step for an NAS stratum of the wireless device transmitting an NAS signaling request message to an AS layer to transmit the former to a network node. The NAS signaling request message can comprise therein an indication of one or both preferred or required plans from among the plans for optimizing the EPS for CIoT using a control plane (CP) or a user plane (UP). The method may comprise a step for the NAS stratum of the wireless device receiving, from the AS stratum, an NAS signaling acceptance message or NAS signaling rejection message from the network node.

公开(公告)号：US20190116531A1

公开(公告)日：2019-04-18

申请号：US16090069

申请日：2017-03-30

Applicant: LG Electronics Inc.

Inventor： Jinsook RYU ,  Jaehyun KIM ,  Taehun KIM ,  Sangmin PARK

IPC: H04W36/02 ,  H04W8/08 ,  H04W36/00 ,  H04W76/27 ,  H04W76/11 ,  H04W76/12 ,  H04W4/70 ,  H04W88/16

Abstract: A method for transmitting buffered data of an MME comprises the steps of: performing a CP mode; buffering downlink data, when the downlink data on a terminal is received from an S-GW, during an idle period in which an ECM-idle state of the terminal is maintained; receiving, from the terminal, a service request message for requesting a UP mode; transmitting, to a base station, an initial context setup request message for setting a DRB, and receiving, from the base station, an initial context setup completion message; and transmitting, to the S-GW, a modified bearer request message for setting an S1 bearer between the base station and the S-GW, wherein the buffered data is included in the initial context setup request message and may be transmitted to the base station.

公开(公告)号：US20190116519A1

公开(公告)日：2019-04-18

申请号：US16088056

申请日：2017-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin PARK ,  Jinsook RYU ,  Jaehyun KIM ,  Taehun KIM

IPC: H04W28/06

Abstract: When a non-access stratum (NAS) message is generated in an NAS layer of a user equipment, the NAS layer transfers the NAS message and type information to an access stratum (AS) layer of the user equipment. An AS message containing the NAS message is transmitted to a network. The type information indicates whether the NAS message is a first type message containing user data or a second type message without user data.

公开(公告)号：US20190045349A1

公开(公告)日：2019-02-07

申请号：US16074072

申请日：2017-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Taehun KIM ,  Sangmin PARK ,  Jaehyun KIM ,  Jaewook LEE ,  Gwanmo KU ,  Jinsook RYU

IPC: H04W8/02

Abstract: When a specific case occurs, user equipment can initiate a tracking area update (TAU) step by transmitting a TAU request. If the user equipment is using a control plane connection for the transport of user data when a radio resource control (RRC) connection failure occurs and there is no pending signaling or uplink user data, the specific case can be applied to a case in which it is indicated, to a network, that downlink data reception subsequent to the uplink data transmission is predicted.

公开(公告)号：US20230371125A1

公开(公告)日：2023-11-16

申请号：US18225445

申请日：2023-07-24

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Sungduck CHUN ,  Hyunsook KIM

IPC: H04W76/50

CPC classification number: H04W76/50

Abstract: Provided are a method for supporting service continuity when a disaster situation ends, and a device supporting same. A user equipment (UE) receives, from a disaster roaming PLMN, a configuration update command message including information indicating that a disaster condition of a home PLMN (HPLMN) has ended. The UE waits until a service that is being received from the disaster roaming PLMN ends, and performs, after the service that is being received from the disaster roaming PLMN ends, a procedure of deregistration from the disaster roaming PLMN on the basis of information indicating that the disaster condition of the HPLMN has ended.

公开(公告)号：US20230269689A1

公开(公告)日：2023-08-24

申请号：US18016085

申请日：2021-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin PARK ,  Sungduck CHUN ,  Hyunsook KIM

IPC: H04W60/00 ,  H04W8/06 ,  H04W8/12 ,  H04W24/04

CPC classification number: H04W60/00 ,  H04W8/06 ,  H04W8/12 ,  H04W24/04

Abstract: A method for timer T adjustment due to disaster roaming occurrence, and an apparatus for supporting same. A user equipment (UE) determines that a disaster condition applies to a home public land mobile network (HPLMN). Upon selecting a disaster roaming PLMN, the UE performs a first registration procedure for disaster roaming services on the disaster roaming PLMN, and periodically attempts to obtain service on the HPLMN based on a timer T with a first value. Upon selecting a Visited PLMN (VPLMN), the UE performs a second registration procedure on the VPLMN, and periodically attempts to obtain service on the HPLMN based on a timer T with a second value.

公开(公告)号：US20230254733A1

公开(公告)日：2023-08-10

申请号：US18015599

申请日：2021-07-09

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Sungduck CHUN ,  Hyunsook KIM

IPC: H04W28/02 ,  H04W60/04 ,  H04W48/18

CPC classification number: H04W28/0289 ,  H04W60/04 ,  H04W48/18 ,  H04W84/042

Abstract: Provided is a method for controlling congestion caused by a disaster roaming user and a device supporting same. When a disaster occurs in a first public land mobile network (PLMN) that provides a service in a specific area, a user equipment (UE) performs registration with a second PLMN that provides a service in the specific area, and receives a message from a network in the second PLMN. The message includes: (i) information indicating that the UE is subject to congestion control in the second PLMN on the basis of the application of a disaster condition in the first PLMN; and (ii) timer information related to the congestion control. The UE operates a timer on the basis of the timer information, and performs PLMN selection with respect to a PLMN other than the second PLMN while the timer is running.

公开(公告)号：US20230254677A1

公开(公告)日：2023-08-10

申请号：US18015600

申请日：2021-07-09

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Sungduck CHUN ,  Hyunsook KIM

IPC: H04W4/90 ,  H04W24/04 ,  H04W48/18

CPC classification number: H04W4/90 ,  H04W24/04 ,  H04W48/18

Abstract: Provided are a method for notifying of a disaster situation by a radio access network (RAN) node, and a device supporting same. When the RAN node detects that a problem in an interface between cores networks related to a public land mobile network (PLMN) has occurred, the RAN node stops transmitting a broadcast message currently being transmitted to a user equipment (UE), and transmits a disaster broadcast message to the UE. The disaster broadcast message comprises: (i) information indicating that a disaster condition is applied to a first PLMN; and (ii) information on a second PLMN related to the disaster condition. The disaster condition corresponds to a problem in an interface between the RAN node and a core network related to the first PLMN. The UE adjusts priorities of an PLMN selection on the basis of information included in the disaster broadcast message, and selects the second PLMN according to the adjusted priorities.

公开(公告)号：US20230156862A1

公开(公告)日：2023-05-18

申请号：US18093598

申请日：2023-01-05

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Sungduck CHUN ,  Hyunsook KIM

IPC: H04W76/50 ,  H04W8/06

CPC classification number: H04W76/50 ,  H04W8/06

Abstract: Provided are a method for supporting service continuity when a disaster situation ends, and a device supporting same. A user equipment (UE) receives, from a disaster roaming PLMN, a configuration update command message including information indicating that a disaster condition of a home PLMN (HPLMN) has ended. The UE waits until a service that is being received from the disaster roaming PLMN ends, and performs, after the service that is being received from the disaster roaming PLMN ends, a procedure of deregistration from the disaster roaming PLMN on the basis of information indicating that the disaster condition of the HPLMN has ended.