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A switching method, device and network architecture

A network architecture and network technology, applied in the field of communication, can solve problems such as inapplicability of new network architectures

Active Publication Date: 2019-12-10
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the above technical problems, the embodiments of the present invention provide a handover method, equipment and network architecture to solve the problems caused by the handover process of the prior art only applicable to the EPC network architecture and not applicable to the new network architecture

Method used

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  • A switching method, device and network architecture
  • A switching method, device and network architecture
  • A switching method, device and network architecture

Examples

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no. 1 example

[0070] Combine below figure 2 The network architecture in the application scenario, refer to image 3 A handover method according to an exemplary embodiment of the present invention will be described. It should be noted that the above application scenarios are only shown for the purpose of understanding the spirit and principle of the present invention, and the implementation manners of the present invention are not limited in this regard. On the contrary, the embodiments of the present invention can be applied to any applicable scene.

[0071] image 3 Schematically shows a flow chart of an embodiment of a handover method according to an embodiment of the present invention, the network architecture to which the handover method is applicable includes: an access network, an intermediate entity, and a mobility management function (also referred to as a mobile property management function entity) and session management function (also called session management function entity)...

no. 2 example

[0085] This embodiment introduces the process of UE switching from 3GPP access to trusted non-3GPP access.

[0086] see Figure 4 , the figure shows the scene of the second embodiment, Figure 4 The shown scenario shows the control plane function and the transmission function. The session management function controls the establishment and release of the user plane connection. The specific establishment and release process depends on the protocol used by the user plane. The dotted line in the figure indicates the transmission path of the user plane after the UE switches to non-3GPP access. In this scenario: the UE attached to the 3GPP access moves to the coverage of the trusted non-3GPP access network, and the UE decides to switch from the 3GPP access to the trusted non-3GPP access (such as TWAN).

[0087] see Figure 5 , the specific switching process is as follows.

[0088] Step S501, the UE sends a PDN (Packet Data Network) connection request message to the TWAN (Trusted...

no. 3 example

[0099] This embodiment introduces the process of UE switching from 3GPP access to untrusted non-3GPP access. see Figure 6 , the figure shows that the UE attached to the 3GPP access moves to the coverage of the untrusted non-3GPP access network, and the UE decides to switch from the 3GPP access to the untrusted non-3GPP access.

[0100] see Figure 7 , the specific switching process is as follows.

[0101] Step S701, the UE initiates the IKEv2 authentication and tunnel establishment process, and indicates the handover to the intermediate entity during the process;

[0102] Step S702, the intermediate entity searches for the context of the UE according to the IKEv2 message, and sends a connection request to the session management function used by the UE in the source access, and the request message carries the UE identifier and handover prompt;

[0103]Step S703, the session management function sends a connection establishment message to the user plane function that provides...

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Abstract

The invention provides a switching method, a device and a network architecture. The switching method comprises that: a conversation management function receives a switching request from an intermediate entity; and the conversation management function switches each connection established by a terminal in a source access network into a target access network according to a switching request. The switching method, the device and the network architecture can satisfy switching of a novel network architecture, avoid a fact that the switching process in the current technology is only adapted to an EPC network architecture and not adapted to the novel network architecture.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a handover method, equipment and network architecture. Background technique [0002] The EPC ((Evolved Packet Core Network) network supports UE handover between 3GPP access and non-3GPP access. Here, taking UE handover from 3GPP access to a trusted WLAN network (a non-3GPP access network) as an example, the introduction The corresponding switching process, the specific process is as follows figure 1 As shown, the UE connected to the 3GPP access has established a PMIPv6 or GTP (GPRS Tunneling Protocol) tunnel on the S5 / S8 interface, and the specific steps are as follows: [0003] Step 1. The UE discovers a trusted WLAN access, and decides to transfer the established PDN (Packet Data Network) connection from the currently used 3GPP access to the discovered trusted WLAN access. [0004] Step 2. The UE performs access authentication and authorization in the trust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W76/15H04W76/34
CPCH04W36/0027H04W36/0066H04W76/15H04W76/30
Inventor 侯云静
Owner DATANG MOBILE COMM EQUIP CO LTD
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