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Switching method and system

A plane switching and base station technology, applied in the direction of electrical components, wireless communication, connection management, etc., can solve problems such as the inability to reduce the signaling burden of the core network, and achieve the effect of reducing the signaling burden and avoiding too much signaling load

Inactive Publication Date: 2015-05-06
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] This application provides a handover method and system to solve the problem that the signaling burden of the core network cannot be reduced in the prior art

Method used

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  • Switching method and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In the first embodiment, the first base station is the main base station, and the second base station is the new auxiliary base station.

[0066] The signaling gateway is implemented on the primary base station of the UE. The primary base station configures a new secondary base station for the UE, and the data bearer is switched from the source secondary base station to the new secondary base station. The new auxiliary base station provides data bearer for users, and user data is forwarded from the core network to the auxiliary base station through the main base station. There is a direct connection between the main base station and the source secondary base station, such as an X2 interface, and a direct connection between the main base station and the new secondary base station, such as an X2 interface. Such as Figure 4 As shown, the handover method in Embodiment 1 of the present application may include the following steps:

[0067] Step S401: the master base statio...

Embodiment 2

[0083] In the second embodiment, the first base station is a source auxiliary base station, and the second base station is a new auxiliary base station.

[0084] The signaling gateway is implemented on the primary base station of the UE, the RRC of the UE is on the source secondary base station, and the mobility management entity is on the source secondary base station. The source secondary base station configures a new secondary base station for the UE, and the data bearer is switched from the source secondary base station to the new secondary base station. The new auxiliary base station provides data bearer for users, and user data is forwarded from the core network to the auxiliary base station through the main base station. There is a direct connection between the main base station and the source secondary base station, such as an X2 interface, and a direct connection between the main base station and the new secondary base station, such as an X2 interface. Such as Figu...

Embodiment 3

[0100] In Embodiment 3 of the present application, the first base station is a source auxiliary base station, and the second base station is a new auxiliary base station.

[0101] The signaling gateway is implemented on the primary base station of the UE, the RRC of the UE is on the source secondary base station, and the mobility management entity is on the source secondary base station. The primary base station configures a new secondary base station for the UE, and the data bearer is switched from the source secondary base station to the new secondary base station. The new auxiliary base station provides data bearer for users, and user data is forwarded from the core network to the auxiliary base station through the main base station. The primary base station is directly connected to the source secondary base station, such as an X2 interface, and there is no direct connection between the primary base station and the new secondary base station, such as an X2 interface. Such ...

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Abstract

The present invention discloses a handover method and system. The method includes: transmitting, by a first base station, a request message to a second base station, wherein the request message carries information of a source signaling gateway, the second base station comprises a target master base station or a new slave base station; transmitting, by the second base station, a response message to the first base station, wherein the response message indicates whether there is a direct connection between the second base station and the source signaling gateway, or indicates whether the second base station selects a target signaling gateway; after receiving a Radio Resource Control (RRC) reconfiguration complete message or a bearer establishment complete message, transmitting, by the second base station, a user plane handover message to the source signaling gateway when there is the direct connection between the second base station and the source signaling gateway; transmitting, by the second base station, the user plane handover message through at least one way at follows when there is not the direct connection between the second base station and the source signaling gateway: transmitting the user plane handover message to a mobility management entity (MME) corresponding to the second base station or a target signaling gateway, or forwarding the user plane handover message to the source signaling gateway through the first base station; and receiving, by the second base station, a user plane handover acknowledge message, wherein the user plane handover acknowledge message is transmitted from one of the first base station, the source signaling gateway, the target signaling gateway and the MME.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a handover method and system. Background technique [0002] Modern mobile communication technology tends to provide users with high-speed multimedia services. Such as figure 1 Shown is the system architecture diagram of System Architecture Evolution (SAE). in: [0003] User Equipment (UE) 101 is a terminal device for receiving data. Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 102 is a radio access network, which includes a macro base station (eNodeB (eNB) / NodeB) providing an interface for a UE to access a radio network. Mobility Management Entity (MME) 103 is responsible for managing UE's mobility context, session context and security information. Serving Gateway (SGW) 104 mainly provides user plane functions, and MME 103 and SGW 104 may be located in the same physical entity. The packet data network gateway (PGW) 105 is responsib...

Claims

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Application Information

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IPC IPC(8): H04W36/08
CPCH04W76/14H04W36/0011H04W36/0064H04W36/04H04W36/0055
Inventor 王弘许丽香柯小婉
Owner BEIJING SAMSUNG TELECOM R&D CENT
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