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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
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.
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公开(公告)号：US10231152B2
公开(公告)日：2019-03-12
申请号：US14966888
申请日：2015-12-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaobo Wu , Hai Liu , Daliang Zhang , Xinyong Wang
Abstract: The present invention discloses a network handover method, where after UE in an LTE network requests circuit switched fallback CSFB, an MME instructs an eNB to move the UE from the LTE network to a 2G or 3G network, and requests an MSC to hand over the UE from the LTE network to a CS domain of the 2G or 3G network for the CSFB, so that the 2G or 3G network allocates a CS domain resource to the UE. After handing over to the CS domain, the UE may perform a CS domain call. By using embodiments of the present invention, an access delay is reduced when the UE accesses the CS domain of the 2G or 3G network, duration of an entire voice call is shortened, and user experience is improved.
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公开(公告)号：US20160105832A1
公开(公告)日：2016-04-14
申请号：US14966317
申请日：2015-12-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaobo Wu , Hai Liu , Daliang Zhang
CPC classification number: H04W36/14 , H04W36/0022
Abstract: The present invention discloses a network handover method. After receiving a request message that requests circuit switched fallback (CSFB) and that is initiated by a UE located in an LTE network, an MME requests an MSC to hand over the UE from the LTE network to a CS domain of the 2G or 3G network; and after receiving a radio access bearer (RAB) sent by the MSC, the MME sends the RAB to the eNB, so that the RAB is sent by an eNB to the UE, where the RAB is a RAB whose domain identifier is a packet switched (PS) domain, or the RAB is a PS RAB. Therefore, the UE can be handed over to a PS domain of the 2G or 3G network in a manner of being handed over from the LTE network to the CS domain of the 2G or 3G network.
Abstract translation: 本发明公开了一种网络切换方法。 在接收到请求电路交换回退（CSFB）并由位于LTE网络中的UE发起的请求消息之后，MME请求MSC将LTE从LTE网络切换到2G或3G网络的CS域 ; 并且在接收到MSC发送的无线接入承载（RAB）之后，MME向eNB发送RAB，使得RAB由eNB发送给UE，其中RAB是其域标识符是分组交换的RAB （PS）域，或RAB是PS RAB。 因此，UE可以以从LTE网络切换到2G或3G网络的CS域的方式切换到2G或3G网络的PS域。
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Patent Agency Ranking
公开(公告)号：US11005740B2
公开(公告)日：2021-05-11
申请号：US16232936
申请日：2018-12-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Daliang Zhang , Zhiyuan Chu
Abstract: A method includes: obtaining, by a control plane device, quality of service (QoS) required by a data transmission service and information about data transmission capabilities of at least two user plane devices controlled by the control plane device; after determining that a data transmission service needs to be established between a terminal and a user plane device, selecting, from the at least two user plane devices, a user plane device whose data transmission capability satisfies the QoS required by the data transmission service; and establishing a bearer of the data transmission service on the selected user plane device.
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公开(公告)号：US20160100338A1
公开(公告)日：2016-04-07
申请号：US14966888
申请日：2015-12-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaobo Wu , Hai Liu , Daliang Zhang , Xinyong Wang
CPC classification number: H04W36/0022 , H04L65/1069
Abstract: The present invention discloses a network handover method, where after UE in an LTE network requests circuit switched fallback CSFB, an MME instructs an eNB to move the UE from the LTE network to a 2G or 3G network, and requests an MSC to hand over the UE from the LTE network to a CS domain of the 2G or 3G network for the CSFB, so that the 2G or 3G network allocates a CS domain resource to the UE. After handing over to the CS domain, the UE may perform a CS domain call. By using embodiments of the present invention, an access delay is reduced when the UE accesses the CS domain of the 2G or 3G network, duration of an entire voice call is shortened, and user experience is improved.
Abstract translation: 本发明公开了一种网络切换方法，其中在LTE网络中的UE请求电路交换回退CSFB之后，MME指示eNB将UE从LTE网络移动到2G或3G网络，并请求MSC切换 UE从LTE网络到用于CSFB的2G或3G网络的CS域，使得2G或3G网络向UE分配CS域资源。 移交给CS域后，UE可以执行CS域呼叫。 通过使用本发明的实施例，当UE接入2G或3G网络的CS域时，减少了接入延迟，缩短了整个语音呼叫的持续时间，提高了用户体验。
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公开(公告)号：US20190132226A1
公开(公告)日：2019-05-02
申请号：US16232936
申请日：2018-12-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Daliang Zhang , Zhiyuan Chu
Abstract: A method includes: obtaining, by a control plane device, quality of service (QoS) required by a data transmission service and information about data transmission capabilities of at least two user plane devices controlled by the control plane device; after determining that a data transmission service needs to be established between a terminal and a user plane device, selecting, from the at least two user plane devices, a user plane device whose data transmission capability satisfies the QoS required by the data transmission service; and establishing a bearer of the data transmission service on the selected user plane device.
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公开(公告)号：US20180324648A1
公开(公告)日：2018-11-08
申请号：US16023229
申请日：2018-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaobo Wu , Hai Liu , Daliang Zhang , Xinyong Wang
CPC classification number: H04W36/0022 , H04L65/1069
Abstract: A network handover method is disclosed, where after UE in an LTE network requests circuit switched fallback CSFB, an MME instructs an eNB to move the UE from the LTE network to a 2G or 3G network, and requests an MSC to hand over the UE from the LTE network to a CS domain of the 2G or 3G network for the CSFB, so that the 2G or 3G network allocates a CS domain resource to the UE. After handing over to the CS domain, the UE may perform a CS domain call. By using embodiments of the present invention, an access delay is reduced when the UE accesses the CS domain of the 2G or 3G network, duration of an entire voice call is shortened, and user experience is improved.
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8.发明授权公开(公告)号：US09717028B2
公开(公告)日：2017-07-25
申请号：US14966317
申请日：2015-12-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaobo Wu , Hai Liu , Daliang Zhang
CPC classification number: H04W36/14 , H04W36/0022
Abstract: The present invention discloses a network handover method. After receiving a request message that requests circuit switched fallback (CSFB) and that is initiated by a UE located in an LTE network, an MME requests an MSC to hand over the UE from the LTE network to a CS domain of the 2G or 3G network; and after receiving a radio access bearer (RAB) sent by the MSC, the MME sends the RAB to the eNB, so that the RAB is sent by an eNB to the UE, where the RAB is a RAB whose domain identifier is a packet switched (PS) domain, or the RAB is a PS RAB. Therefore, the UE can be handed over to a PS domain of the 2G or 3G network in a manner of being handed over from the LTE network to the CS domain of the 2G or 3G network.
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