公开(公告)号：US09642067B2

公开(公告)日：2017-05-02

申请号：US14526042

申请日：2014-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hai Liu ,  Jiangnan Chen ,  Xinyou Ma ,  Qiming Liu

IPC: H04W4/02 ,  H04W48/06 ,  H04W48/08 ,  H04W84/12

CPC classification number: H04W48/06 ,  H04W48/08 ,  H04W84/12

Abstract: The present invention provides a network offloading method, a base station, and a terminal, which solves the problem of low user experience of a terminal. Specific steps may include: receiving access point state information of a wireless local area network; and if it is determined, according to stored state information of a network currently accessed by a terminal, that data offloading needs to be performed for the terminal, and it is determined, according to the access point state information, that the terminal is allowed to access the wireless local area network, sending offloading instruction information to the terminal, where the offloading instruction information includes identification information of the wireless local area network, so that the terminal makes the terminal access the wireless local area network according to the identification information of the wireless local area network, and performs data transmission using the wireless local area network.

公开(公告)号：US09078173B2

公开(公告)日：2015-07-07

申请号：US13664302

申请日：2012-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hai Liu ,  Xiaobo Wu ,  Xiaoying Xu ,  Wenruo Zhu

IPC: H04W4/00 ,  H04W36/00

CPC classification number: H04W36/0022

Abstract: Embodiments of the present invention disclose a method for a handover from a circuit switched domain to a packet switched domain, a device, and a communications system. One of CS to PS handover methods includes receiving, by a target mobility management entity, a CS to PS handover request message that corresponds to a first UE and is from an MSC; triggering setup of a dedicated VoIP bearer that corresponds to the first UE and is between an SGW and an MGW; sending a handover request message to a target access network to instruct the target access network to prepare a handover resource for the first UE; and sending a CS to PS handover response message corresponding to the first UE to the MSC.

Abstract translation: 本发明的实施例公开了一种从电路交换域到分组交换域，设备和通信系统的切换的方法。 CS到PS切换方法之一包括由目标移动性管理实体接收对应于第一UE并且来自MSC的CS到PS切换请求消息; 触发对应于第一UE并且在SGW和MGW之间的专用VoIP承载的建立; 向目标接入网发送切换请求消息，指示目标接入网准备第一UE的切换资源; 并向CS发送对应于第一UE的PS切换响应消息。

公开(公告)号：US20150156687A1

公开(公告)日：2015-06-04

申请号：US14618849

申请日：2015-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaobo Wu ,  Lin Shu ,  Wanqiang Zhang ,  Hai Liu

IPC: H04W36/00 ,  H04W48/16

CPC classification number: H04W36/0083 ,  H04W36/0022 ,  H04W48/16 ,  H04W48/18 ,  H04W60/005

Abstract: A method and an apparatus for displaying a network name are provided. By using a combined attach procedure or a combined tracking area update procedure, a user equipment UE registers with a long term evolution network and a first circuit switched domain network, and acquires a public land mobile network identity PLMN ID of the long term evolution network and a PLMN ID of the circuit switched domain network. The UE displays a first network name corresponding to a predetermined PLMN ID before a to-be-displayed second network name sent by a first network device on the long term evolution network is received. The predetermined PLMN ID is one of the PLMN ID of the long term evolution network and the PLMN ID of the circuit switched domain network.

Abstract translation: 提供一种用于显示网络名称的方法和装置。 通过使用组合连接过程或组合跟踪区域更新过程，用户设备UE向长期演进网络和第一电路交换域网注册，并获取长期演进网络的公共陆地移动网络身份PLMN ID，以及 电路交换域网络的PLMN ID。 在接收到长期演进网络上由第一网络设备发送的待显示的第二网络名称之前，UE显示对应于预定PLMN ID的第一网络名称。 预定的PLMN ID是长期演进网络的PLMN ID和电路交换域网络的PLMN ID之一。

公开(公告)号：US20130287007A1

公开(公告)日：2013-10-31

申请号：US13930593

申请日：2013-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaobo Wu ,  Hai Liu ,  Wei Xiao

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04W8/26 ,  H04W36/14 ,  H04W68/00 ,  H04W72/042 ,  H04W76/10

Abstract: A method for voice call fallback to a circuit switched (CS) domain disclosed in the present invention includes: receiving a Service Request message from a calling user equipment (UE), where the Service Request message includes called number information of a voice call in a CS domain, instructing an evolved NodeB (eNB) to initiate circuit switched fallback (CSFB) handover; receiving a Handover Request message from the eNB, where the Handover Request message includes information required for CS handover, selecting a mobile switching center (MSC) and sending a packet switched (PS) to CS Handover Request message to the MSC, where the PS to CS Handover Request message carries information required for the CS handover and a called number so that the MSC calls a called UE. The corresponding apparatuses and systems are also disclosed. The technical solution of the present invention can reduce the connection delay.

Abstract translation: 本发明公开的用于语音呼叫回退到电路交换（CS）域的方法包括：从主叫用户设备（UE）接收业务请求消息，其中业务请求消息包括语音呼叫的被叫号码信息 CS域，指示演进的节点B（eNB）发起电路交换回退（CSFB）切换; 从eNB接收切换请求消息，其中切换请求消息包括CS切换所需的信息，选择移动交换中心（MSC）并向MSC切换请求消息发送分组交换（PS）到MSC，其中PS到 CS切换请求消息携带CS切换所需的信息和被叫号码，使得MSC呼叫被叫UE。 还公开了相应的装置和系统。 本发明的技术方案可以减少连接延迟。

公开(公告)号：US11026130B2

公开(公告)日：2021-06-01

申请号：US16439888

申请日：2019-06-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hai Liu ,  Xiaobo Wu ,  Caixia Qi

IPC: H04W36/00 ,  H04M7/00 ,  H04M7/12 ,  H04L29/06

Abstract: A method, an apparatus and a system for a handover to a circuit switched domain are disclosed. In an embodiment, a system includes a mobility management entity (MME) and at least two a mobile switching center (MSCs), wherein the at least two MSCs comprise a first MSC capable of supporting a circuit switched fallback (CSFB) and a single radio voice call continuity (SRVCC) and a second MSC not capable of supporting the SRVCC, and wherein the MME is configured to select the first MSC for a user equipment (UE) from the at least two MSCs in a combined tracking area update procedure of the UE when a location service of a circuit switched (CS) domain triggers an SRVCC procedure for the UE and when the UE has a Voice over Internet Protocol (VOIP) service in progress.

公开(公告)号：US20190297539A1

公开(公告)日：2019-09-26

申请号：US16439888

申请日：2019-06-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hai Liu ,  Xiaobo Wu ,  Caixia Qi

IPC: H04W36/00 ,  H04M7/12 ,  H04M7/00

Abstract: A method, an apparatus and a system for a handover to a circuit switched domain are disclosed. In an embodiment, a system includes a mobility management entity (MME) and at least two a mobile switching center (MSCs), wherein the at least two MSCs comprise a first MSC capable of supporting a circuit switched fallback (CSFB) and a single radio voice call continuity (SRVCC) and a second MSC not capable of supporting the SRVCC, and wherein the MME is configured to select the first MSC for a user equipment (UE) from the at least two MSCs in a combined tracking area update procedure of the UE when a location service of a circuit switched (CS) domain triggers an SRVCC procedure for the UE and when the UE has a Voice over Internet Protocol (VOIP) service in progress.

公开(公告)号：US09961593B2

公开(公告)日：2018-05-01

申请号：US14593905

申请日：2015-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hai Liu ,  Xiaobo Wu ,  Caixia Qi

IPC: H04W36/00 ,  H04M7/00 ,  H04M7/12 ,  H04L29/06

CPC classification number: H04W36/0022 ,  H04L65/1046 ,  H04M7/0057 ,  H04M7/0066 ,  H04M7/1225

Abstract: Embodiments of the present invention provide a method, apparatus, and system for a handover to a circuit switched domain. The method includes: selecting an MSC capable of both CSFB and SRVCC for a UE; and selecting, if a location service of a CS domain triggers an SRVCC procedure for the UE when the UE has a VOIP service in progress, the MSC capable of both CSFB and SRVCC in the SRVCC procedure, so that the UE, after being handed over to the CS domain, accesses the MSC and implements the location service of the CS domain. The apparatus includes: a first selecting module and a second selecting module. The system includes a UE and the apparatus. The embodiments of the present invention enable the UE with the VOIP service in progress to be correctly handed over to the CS domain and implement the location service.

公开(公告)号：US09913174B2

公开(公告)日：2018-03-06

申请号：US13933012

申请日：2013-07-01

Applicant: Huawei Technologies Co., LTD

Inventor： Yanglai Shuai ,  Hai Liu ,  Wenruo Zhu ,  Longgui Huang

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04W36/0066

Abstract: A method, device and system for implementing optimized inter-RAT handover are disclosed. In the method, a user equipment or a source network decides to prepare for a handover to a target network. A corresponding target network ID is obtained from a configured mapping between cell IDs and target IDs according to a received cell ID. Target network bearers are set up after determining an access node of the target network. The user equipment is connected to the target network after handover preparation is complete.

公开(公告)号：US09900807B2

公开(公告)日：2018-02-20

申请号：US14966461

申请日：2015-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaobo Wu ,  Hai Liu ,  Daliang Zhang ,  Xinyong Wang ,  Yaowei Han

IPC: H04W36/00 ,  H04L29/06

CPC classification number: H04W36/0022 ,  H04L65/1096

Abstract: The embodiments of the present application discloses a circuit switched fallback method, a UE, an MSC, and an MME. The method includes: sending, by a UE to an MME, a request message for requesting to perform CSFB; receiving, by the UE, a switch command sent by an eNodeB; releasing or holding a default CS call of the UE after the UE switches to the CS domain according to the switch command, where the default CS call is generated by the UE according to the switch command; and by using an MSC, initiating, by the UE, a CS call or receiving a CS call. According to the circuit switched fallback method, the UE, the MSC, and the MME in the embodiments of the present application, circuit switched fallback can be implement in a manner of switching by a UE from a PS domain to a CS domain, and reduce a delay.

公开(公告)号：US09838915B2

公开(公告)日：2017-12-05

申请号：US14623234

申请日：2015-02-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaobo Wu ,  Lin Shu ,  Wanqiang Zhang ,  Hai Liu

IPC: H04W36/00 ,  H04W60/00 ,  H04W48/18 ,  H04W48/08 ,  H04W36/14

CPC classification number: H04W36/0022 ,  H04M2215/81 ,  H04W36/14 ,  H04W48/08 ,  H04W48/18 ,  H04W60/00

Abstract: A user equipment UE attaches to a first network, and displays a first network name, where the first network name is a network name of the first network; or the UE executes a combined attach procedure or a combined tracking area update procedure to attach to the first network or a second network, and displays the first network name, where the first network name is a network name of the first network or a network name of the second network; and in a process of executing a service in the first network, the UE changes from the first network to the second network or a third network, and the UE keeps displaying the first network name. It is ensured that a network name displayed on a terminal is consistent with a network name that is displayed on a UE and recorded by a network device.