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.

公开(公告)号：US20230146162A1

公开(公告)日：2023-05-11

申请号：US17912757

申请日：2021-03-19

Applicant: LG Electronics Inc.

Inventor： Sungduck CHUN ,  Hyunsook KIM

IPC: H04W60/00 ,  H04W48/20 ,  H04W36/08

CPC classification number: H04W60/00 ,  H04W48/20 ,  H04W36/08

Abstract: One disclosure of the present specification provides a method by which a network allows user equipment (UE) to communicate. The method comprises the steps of: receiving, from the UE, a registration request message including a provision request for a specific network slice; determining whether the network can provide a service for the specific network slice to the UE, on the basis of i) the registration request message, ii) the specific network slice, iii) subscription information and the like about the UE; and transmitting a response message to a base station on the basis of the network not being able to provide the service for the specific network slice to the UE, wherein the response message includes information about the rejection of the provision request for the specific network slice, and the response message can include network slice support information related to the specific network slice.

公开(公告)号：US20230084683A1

公开(公告)日：2023-03-16

申请号：US17798259

申请日：2021-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Sungduck CHUN

IPC: H04W48/16 ,  H04W48/18 ,  H04W4/90

Abstract: One disclosure of the present specification provides a communication method of a terminal which must receive a public warning system (PWS) service. The method may comprise the steps of: searching for one or more first stand-alone non-public networks (SNPNs) to which a terminal is subscribed; receiving, from each of the one or more first SNPNs, first PWS information about whether the respective one or more first SNPNs support a PWS service; and, on the basis of the first PWS information, checking whether a specific first SNPN supporting the PWS service is present among the one or more first SNPNs.

公开(公告)号：US20230074413A1

公开(公告)日：2023-03-09

申请号：US17798967

申请日：2021-01-22

Applicant: LG Electronics Inc.

Inventor： Sungduck CHUN

IPC: H04W48/14 ,  H04W48/18 ,  H04W60/00 ,  H04W24/10

Abstract: A disclosure of the present specification provides a method of performing communication related to a network slice by a UE. The method may comprise the steps of receiving, from a network, network slice information of a serving cell and network slice information of a neighboring cell; determining that the neighboring cell provides a first network slice that the UE is to use; performing first measurement for a signal of the service cell and second measurement for a signal of the neighboring cell; and determining, on the basis of the first measurement and the second measurement, whether to select the neighboring cell.

公开(公告)号：US20230071408A1

公开(公告)日：2023-03-09

申请号：US17798964

申请日：2021-02-15

Applicant: LG Electronics Inc.

Inventor： Laeyoung KIM ,  Sungduck CHUN ,  Myungjune YOUN

IPC: H04W76/10

Abstract: Provided in one embodiment of the present specification is a method by which an IMS AS performs communication related to a MA PDU session. The method can comprise the steps of: receiving, through a P-CSCF and a S-CSCF, a SIP registration message generated by means of UE, the SIP registration message including information that an IMS service is performed through the MA PDU session, and the SIP registration message including state information that the state of a PS data off of the UE is active; receiving, from the S-CSCF, an SIP request message for requesting the IMS service from the UE; checking whether the IMS service corresponds to an exempt service of the PS data off; including the checked result in the SIP request message; and transmitting the SIP request message to a UPF through the S-CSCF and the P-CSCF.

公开(公告)号：US20220070814A1

公开(公告)日：2022-03-03

申请号：US17420905

申请日：2020-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Sungduck CHUN

IPC: H04W60/04 ,  H04W4/90 ,  H04W48/18 ,  H04W8/02 ,  H04W88/06

Abstract: A method for performing, by a user equipment (UE), a registration to a network in a wireless communication system is disclosed. Specifically, the UE performs a registration to a first public land mobile network (PLMN) via a first base station, receives an disaster related message applied to the first PLMN or applied to an area in which the UE is located when there is no service provided from the first PLMN, transmits a registration request message to a second PLMN providing an disaster roaming service based on the disaster related message, and receives, from the second PLMN, a response message to the registration request message. The UE is subscribed to the first PLMN, and the second PLMN is configured to provide the disaster roaming service to the UE based on a disaster applied to the first PLMN or applied to the area in which the UE is located.