公开(公告)号：US20230328833A1

公开(公告)日：2023-10-12

申请号：US18328152

申请日：2023-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Vishnu PREMAN ,  Rama Kumar MOPIDEVI ,  Gong CHEN ,  Xibo SUN ,  Jianhai CUI ,  Linping YANG

IPC: H04W76/20 ,  H04W60/06 ,  H04W76/30

CPC classification number: H04W76/20 ,  H04W60/06 ,  H04W76/30 ,  H04W84/042

Abstract: A network node for a communication system is associated with a serving public land mobile network (PLMN) for a first client device. The network node is configured to transmit a first control message to the first client device in response to determining that the serving PLMN for the first client device is in a disaster condition. The first control message indicates that the serving PLMN for the first client device is in the disaster condition.

公开(公告)号：US20240073808A1

公开(公告)日：2024-02-29

申请号：US18505201

申请日：2023-11-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan YI ,  Li QIANG ,  Gong CHEN ,  Xiaofeng LUO ,  Lutao WEN

IPC: H04W48/20 ,  H04W48/16

CPC classification number: H04W48/20 ,  H04W48/16

Abstract: A cell selection method includes receiving, by an access stratum (AS) of a terminal device, first information from a non-access stratum (NAS) of the terminal device. The first information includes identity information of a first public land mobile network (PLMN) to be accessed by the terminal device. The cell selection method also includes determining, by the AS based on the first information, whether to camp on a first candidate cell. The first candidate cell supports the first PLMN. The first candidate cell satisfies a first camping condition. The first camping condition comprises a cell selection criterion and a service requirement. The service requirement is a preset threshold of a parameter reflecting signal quality of a cell.

公开(公告)号：US20230007723A1

公开(公告)日：2023-01-05

申请号：US17940045

申请日：2022-09-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xibo SUN ,  Gong CHEN ,  Chaoping LIU

IPC: H04W76/27 ,  H04W76/19 ,  H04W76/30 ,  H04W52/02 ,  H04W60/00

Abstract: A method and an apparatus for switching an RRC state includes: sending, by a communications apparatus, indication information to a network device, where the indication information is used to indicate that the communications apparatus requests to enter an RRC inactive state; after completing a registration process of an RRC connected state, receiving, by the communications apparatus, an RRC connection release message that is sent by the network device based on the indication information, where the RRC connection release message is used to indicate the communications apparatus to enter the RRC inactive state; and entering, by the communications apparatus, the RRC inactive state from the RRC connected state based on the RRC connection release message.

公开(公告)号：US20230337167A1

公开(公告)日：2023-10-19

申请号：US18337908

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Vishnu PREMAN ,  Rama Kumar MOPIDEVI ,  Gong CHEN ,  Xibo SUN ,  Jianhai CUI ,  Linping YANG

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

CPC classification number: H04W60/00 ,  H04W24/04 ,  H04W8/06 ,  H04W84/042

Abstract: A client device for efficient disaster handling based on a novel list of PLMNs for disaster conditions. The client device is provided with a list of PLMNs that is used by the client device in response to the serving PLMN of the client device going into a disaster condition. Upon determining that the serving PLMN is in a disaster condition, the client device registers at a visiting PLMN in the PLMN list. The novel list of PLMNs for disaster conditions enables the client device to roam into PLMNs which is forbidden during normal conditions.

公开(公告)号：US20200374968A1

公开(公告)日：2020-11-26

申请号：US16991453

申请日：2020-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xibo SUN ,  Gong CHEN ,  Chaoping LIU

IPC: H04W76/27 ,  H04W76/19 ,  H04W60/00 ,  H04W76/30 ,  H04W52/02

Abstract: This application provides a method and an apparatus for switching an RRC state. The method includes: sending, by a communications apparatus, indication information to a network device, where the indication information is used to indicate that the communications apparatus requests to enter an RRC inactive state; after completing a registration process of an RRC connected state, receiving, by the communications apparatus, an RRC connection release message that is sent by the network device based on the indication information, where the RRC connection release message is used to indicate the communications apparatus to enter the RRC inactive state; and entering, by the communications apparatus, the RRC inactive state from the RRC connected state based on the RRC connection release message. In this way, energy consumption of the terminal-side communications apparatus can be effectively reduced, and network resource consumption can also be reduced.

公开(公告)号：US20240056943A1

公开(公告)日：2024-02-15

申请号：US18494331

申请日：2023-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiji YAN ,  Wen HU ,  Gong CHEN ,  Chuanzheng GU ,  Jiajie XU

IPC: H04W40/24

CPC classification number: H04W40/248

Abstract: A communication method and apparatus, a storage medium, and a chip system are disclosed. In one example, a wireless communication apparatus includes a communication processor and an application processor, and the communication processor is coupled to the application processor. The communication processor is configured to receive a first request sent by the application processor, where the first request is used to query a route selection descriptor. The communication processor is configured to send a second request to a network device. The second request includes at least one parameter in the route selection descriptor.