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Network switching method, evolution base station and communication system

A technology for network handover and evolution of base stations, applied in the field of network handover methods, evolutionary base stations and communication systems, can solve the problem of not being able to switch to code division multiple access, etc., and achieve the effect of protecting investment and improving use efficiency

Active Publication Date: 2010-12-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this network topology brings a problem: when the UE moves from the circuit domain (2G / 3G CS) network of the second-generation mobile communication system or the third-generation mobile communication system and enters the hotspot coverage of the LTE network, the bearer 2G / 3G Voice on the CS network needs to be seamlessly transferred to LTE's IMS-based voice services to maintain voice continuity
There may be a problem that the user equipment (UE: User Equipment) cannot switch to the code division multiple access (CDMA: Code Division Multiple Access) access network for voice services when the LTE access network cannot perform voice services

Method used

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  • Network switching method, evolution base station and communication system
  • Network switching method, evolution base station and communication system
  • Network switching method, evolution base station and communication system

Examples

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Embodiment Construction

[0026] The following describes the network switching method provided by the embodiment of the present invention, figure 1 The flow of Embodiment 1 of the network handover method is described. This embodiment describes the processing flow of the evolved base station, including:

[0027] 101. A measurement control message is sent to a UE triggered by a handover trigger condition; the UE is attached to an LTE access network.

[0028] Wherein, the handover trigger condition may be receiving a load indication from a Generic Access Network Controller (GANC: Generic Access Network Controller), and the GANC may send the load indication when the load of the LTE access network to which the UE is attached meets a preset condition, For example, the load indication may be sent when the LTE access network is overloaded, or the user plane is congested, or other network is abnormal. In another embodiment of the present invention, the GANC may send the load indication when the UE fails to est...

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PUM

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Abstract

The invention relates to the technical field of communication, and discloses a network switching method, an evolution base station and a communication system. The network switching method comprises the following steps of: sending measurement control message to user equipment under the trigger of a switching trigger condition, wherein the user equipment is attached to a long-term evolution system access network; receiving a measurement report sent by the user equipment, wherein the measurement report comprises measurement information of a code division multiple access (CDMA) network; and making a judgment of switching to the CDMA network according to the measurement information of the CDMA network, and triggering the switching of the user equipment to the CDMA network. By using the method,the UE can be switched to the CDMA network from the LTE access network.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a network switching method, an evolved base station and a communication system. Background technique [0002] The voice service is an important source of profit for telecom operators, and the deployment of the Long-Term Evolution system (LTE: LongTime Evolved) in the future is also a general trend. A current LTE-based voice solution is single radio Voice Call Continuity between IMS and CS (SR-VCC: single radio Voice Call Continuity between IMS and CS). [0003] LTE is defined as a pure packet switching system, which means that in this system voice services can only be transmitted on the bearer of packet switching. In the LTE system, the voice service data is generally controlled by the Internet Protocol Multimedia Subsystem (IMS: IP Multimedia Subsystem), so the voice service in the LTE system is generally called a VoIP (Voice over Internet Protocol) voice service....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W36/24H04W88/08
Inventor 吴晓波温立张戬
Owner HUAWEI TECH CO LTD
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