公开(公告)号：US11129211B2

公开(公告)日：2021-09-21

申请号：US16577878

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Fenqin Zhu

IPC: H04W76/10 ,  H04W16/02

Abstract: A core network device selection method and apparatus are disclosed. The method includes: receiving, by an access network node, an access stratum message sent by a terminal, where the access stratum message includes a NAS request message and a network selection auxiliary parameter; querying configuration information based on the network selection auxiliary parameter, and determining a group identifier of at least one mobility management device group, where the configuration information includes a correspondence between a network selection auxiliary parameter and a group identifier of a mobility management device group; determining a device identifier of a target mobility management device based on the group identifier of the at least one mobility management device group; and sending the NAS request message to a mobility management device indicated by the device identifier of the target mobility management device.

公开(公告)号：US20210211904A1

公开(公告)日：2021-07-08

申请号：US17206558

申请日：2021-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W24/04 ,  H04W28/08 ,  H04W48/18 ,  H04W8/08

Abstract: A binding support method, including: receive third information from the source policy control network element, wherein the third information comprises session information of a policy session and an identifier of a policy control network element set to which the source policy control network element belongs; receive a first request message from an application network element to query a target policy control network element that serves the policy session, the first request message comprises the session information of the policy session, the session information of the policy session is used to indicate the policy session; and determine the target policy control network element based on the third information and the first request message.

公开(公告)号：US10932092B2

公开(公告)日：2021-02-23

申请号：US16511531

申请日：2019-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong Hu ,  Qianghua Zhu ,  Fenqin Zhu

IPC: H04W4/00 ,  H04W4/029 ,  H04W76/11 ,  H04W8/08 ,  H04W80/10

Abstract: A method for establishing a local network connection, where the method includes: obtaining, by a terminal, broadcast information sent by a base station; if the broadcast information includes a first local data network (LDN) list, determining a target local network identifier based on the first LDN list, where the first LDN list includes at least one local network identifier; and establishing, by the terminal, a session connection using the target local network identifier.

公开(公告)号：US20200374350A1

公开(公告)日：2020-11-26

申请号：US16992770

申请日：2020-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianghua Zhu ,  Fenqin Zhu ,  Wenfu Wu

IPC: H04L29/08

Abstract: A method for determining a service and session continuity (SSC) mode and an apparatus, where the method includes: determining, by a terminal device, a requested SSC mode; and sending a first request message to a first core network element, where the first request message is used to request to establish a first protocol data unit (PDU) session, and the first request message includes a session type of the first PDU session, the requested SSC mode, and first indication information. The first request message sent by the terminal device to the first core network element may carry the first indication information, used to indicate that the SSC mode requested by the terminal device is not allowed to be modified, to prevent a network-side network element from subsequently making an erroneous decision, for example, modifying the requested SSC mode to another SSC mode that is not supported by the terminal device.

公开(公告)号：US10834209B2

公开(公告)日：2020-11-10

申请号：US16427990

申请日：2019-05-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W4/00 ,  H04L29/08 ,  H04W60/04 ,  H04W36/00 ,  H04W84/04

Abstract: A session establishment method and an apparatus, such that an established packet data network (PDN) connection is transferred to a network slice in a fifth generation (5G) network during inter-system mobility of a terminal. The method includes receiving, by a terminal from a control plane function entity, corresponding network slice information used for transferring an established PDN connection to a 5G network, where the corresponding network slice information includes corresponding single network slice selection assistance information (S-NSSAI). The method further includes sending a packet data unit (PDU) session establishment request, where the PDU session establishment request includes corresponding S-NSSAI used for transferring a first PDN connection to the 5G network and a corresponding data network name (DNN) used for transferring the first PDN connection to the 5G network, and the first PDN connection is any one of one or more established PDN connections.

公开(公告)号：US10812999B2

公开(公告)日：2020-10-20

申请号：US16056140

申请日：2018-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Li ,  Fenqin Zhu

IPC: H04W28/04 ,  H04W24/10 ,  H04W4/12 ,  H04W28/26 ,  H04W72/04 ,  H04W88/16

Abstract: A method for reporting radio bearer loss information is provided in an embodiment of this invention. The method comprises: receiving a User Equipment UE Context Release Request message or a Release Access Bearer Request message or an Iu interface release request message all carrying a release cause value; and if the release cause value indicates an abnormal release, reporting radio bearer loss information to a gateway while preserving non-GBR bearers. With the method and apparatus of embodiments of this invention, not only bearer reporting can be realized, but also problems caused by the release of Non-Guaranteed Bandwidth non-GBR bearers can be prevented.

公开(公告)号：US20200267529A1

公开(公告)日：2020-08-20

申请号：US16845026

申请日：2020-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Jing ,  Zaifeng Zong ,  Fenqin Zhu ,  Mirko Schramm

IPC: H04W8/08 ,  H04W80/10 ,  H04W56/00 ,  H04W28/02 ,  H04W60/00

Abstract: A communication method applicable to different scenarios of interworking between communications systems includes determining, by a session management network element, a first data channel in a first system, where the first data channel is a data channel to be synchronized with a terminal device; and synchronizing, by the session management network element in an interworking procedure for the terminal device from the first system to a second system, at least one of the first data channel or a second data channel that is in the second system and that corresponds to the first data channel.

公开(公告)号：US10667233B2

公开(公告)日：2020-05-26

申请号：US16283383

申请日：2019-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qing Wei ,  Fenqin Zhu ,  Chenghui Peng ,  Riccardo Trivisonno

IPC: H04W64/00 ,  G01S5/02 ,  G01S5/00

Abstract: A communications system comprising a core network, a radio access network and at least one user equipment device, wherein: the core network is configured for communicating with the user equipment device to form a first estimate of the location of the user equipment device; the radio access network is configured for communicating with the user equipment device to form a second estimate of the location of the user equipment device; and the core network is configured for forming a third estimate of the location of the user equipment device by synthesizing the first and second estimates.

公开(公告)号：US20190274181A1

公开(公告)日：2019-09-05

申请号：US16415148

申请日：2019-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenqin Zhu ,  Dekui Sun ,  Wenfu Wu

IPC: H04W76/19 ,  H04W36/00 ,  H04W36/08 ,  H04W8/08 ,  H04W36/32

Abstract: A method and an apparatus for initiating user plane path re-establishment and a communications system are disclosed. The method includes: determining, by a session management function entity based on first location information of a terminal device, a session service area to which a current session of the terminal device belongs; and after receiving second location information of the terminal device sent by a mobility management function entity, if determining that the second location information is not within the session service area, instructing the terminal device to initiate a re-establishment procedure for the current session or initiate a handover procedure. Due to introduction of the session service area, when the terminal device moves back and forth at edges of service areas of two adjacent user plane function entities, a ping-pong effect caused by frequent handover between the two user plane function entities is avoided, and user experience is improved.

公开(公告)号：US10075865B2

公开(公告)日：2018-09-11

申请号：US14720472

申请日：2015-05-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Li ,  Fenqin Zhu

IPC: H04L12/26 ,  H04W24/10 ,  H04W28/04 ,  H04W4/12 ,  H04W28/26 ,  H04W72/04 ,  H04W88/16

CPC classification number: H04W24/10 ,  H04W4/12 ,  H04W28/04 ,  H04W28/26 ,  H04W72/0413 ,  H04W88/16

Abstract: A method for reporting radio bearer loss information is provided. The method comprises: receiving a User Equipment UE Context Release Request message or a Release Access Bearer Request message or an Iu interface release request message all carrying a release cause value; and if the release cause value indicates an abnormal release, reporting radio bearer loss information to a gateway while preserving non-GBR bearers. With the method and apparatus of embodiments of this invention, not only bearer reporting can be realized, but also problems caused by the release of Non-Guaranteed Bandwidth non-GBR bearers can be prevented.