公开(公告)号：US11251981B2

公开(公告)日：2022-02-15

申请号：US16376327

申请日：2019-04-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cuili Ge ,  Yanmei Yang ,  Yizhuang Wu

IPC: H04L12/18 ,  H04W4/08 ,  H04W76/40 ,  H04W76/45 ,  H04L29/06 ,  H04L29/08

Abstract: The present disclosure relates to communication methods and apparatus. One example method includes receiving, by a target service entity, a first request message from a first participating service entity, and sending, by the target service entity, a first response message to the first participating service entity. The first request message comprises an identity of a target multicast bearer and a group identity of a terminal group. The first response message is used to instruct the first participating service entity to use the target multicast bearer to send service data of the terminal group.

公开(公告)号：US11194641B2

公开(公告)日：2021-12-07

申请号：US17034260

申请日：2020-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cuili Ge ,  Niranth Amogh ,  Yanmei Yang

IPC: G06F9/54 ,  H04L29/06

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose an application programming interface (API) topology hiding method, a device, and a system, to hide, from an API invoker, an API exposing function (AEF) that provides an API. The method includes: receiving, by a common API framework core function (CCF) from a topology hiding request entity, a request message that includes information about an API and that is used to request to hide an AEF that provides the API; determining, based on the request message, a topology hiding entry point used by an API invoker to invoke the API; and sending, to the topology hiding entry point, an identifier of the API and an identifier of the AEF that provides the API, so that the topology hiding entry point hides the AEF that provides the API.

公开(公告)号：US11108837B2

公开(公告)日：2021-08-31

申请号：US16505191

申请日：2019-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cuili Ge ,  Yanmei Yang

IPC: G06F15/16 ,  H04L29/06

Abstract: A media downlink transmission control method and a related device, the method including receiving a remote media reception message sent by an authorized terminal, where the remote media reception message includes a target user identifier, determining a first target media stream based on the remote media reception message, and sending the first target media stream to a destination terminal corresponding to the target user identifier.

公开(公告)号：US10470003B2

公开(公告)日：2019-11-05

申请号：US15722858

申请日：2017-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanmei Yang ,  Yizhuang Wu ,  Cuili Ge

IPC: H04W4/08 ,  H04W84/08 ,  H04W4/10

Abstract: Embodiments of the present invention provide a method for regrouping multiple groups and a device, including: receiving, by a first group management functional entity, a group regrouping creation message sent by first UE, where the group regrouping creation message includes identifiers of N MCPTT groups, and the group regrouping creation message is used to request the first group management functional entity to create, according to the identifiers of the N MCPTT groups, a temporary group which is initiated by a first MCPTT user and into which the N MCPTT groups are regrouped; and the first MCPTT user belongs to at least one MCPTT group of the N MCPTT groups; and configuring information about the temporary group, where the information about the temporary group includes an identifier of the temporary group into which the N MCPTT groups are regrouped, and the identifiers of the N MCPTT groups.

公开(公告)号：US10425775B2

公开(公告)日：2019-09-24

申请号：US15722642

申请日：2017-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanmei Yang ,  Yizhuang Wu ,  Cuili Ge

IPC: H04W4/08 ,  H04W4/10 ,  H04W84/08 ,  H04L12/18 ,  H04W76/45 ,  H04W4/90

Abstract: A multi-group call setup method and device are disclosed. The method includes determining, by a first MCPTT server, to set up a multi-group call involving N MCPTT groups, where N is an integer greater than or equal to 2, and sending, by the first MCPTT server, a call message to first UE, where the call message is used to add the first UE to the multi-group call, where a first MCPTT user is an associated user of the first UE, and where the first MCPTT user is an MCPTT user in the N MCPTT groups.

公开(公告)号：US20180124577A1

公开(公告)日：2018-05-03

申请号：US15855645

申请日：2017-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanmei Yang ,  Cuili Ge ,  Niranth Amogh

IPC: H04W4/08 ,  H04L29/06

Abstract: A method, an apparatus and a system for floor control on multiple mission critical push to talk MCPTT systems are disclosed. In an embodiment the method includes receiving, by a first floor control server, a first message from N network element devices, wherein the first message is used to request a floor from the first floor control server, and wherein the N network element devices belong to N MCPTT systems respectively, determining according to the first message, that an MCPTT user in an MCPTT group belonging to a first MCPTT system occupies the floor, wherein the first MCPTT system is an MCPTT system to which a first network element device belongs, and sending a second message to the first network element device, wherein the second message is used to indicate that the MCPTT user in the MCPTT group belonging to the first MCPT system occupies the floor.

公开(公告)号：US20180034635A1

公开(公告)日：2018-02-01

申请号：US15727027

申请日：2017-10-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lijia Zhang ,  Cuili Ge

IPC: H04L9/14 ,  H04W12/10 ,  H04W12/06 ,  H04L9/08

CPC classification number: H04L9/14 ,  H04L9/0827 ,  H04L63/123 ,  H04W4/70 ,  H04W12/02 ,  H04W12/06 ,  H04W12/08 ,  H04W12/10

Abstract: A GPRS system key enhancement method, an SGSN device, UE, and a GPRS system are provided. The method includes: receiving, by the SGSN, a request message sent by the UE; acquiring, by the SGSN, an authentication vector including a first ciphering key and a first integrity key from the HLR/HSS; when the SGSN determines that the UE is UE of a first type, selecting a ciphering algorithm and an integrity algorithm for the UE, and sending the selected ciphering algorithm and the selected integrity algorithm to the UE; and computing, by the SGSN, a second ciphering key and a second integrity key according to the first ciphering key and the first integrity key.