Switching method, device and system

A technology for handover failure and interface handover, which is applied in the field of handover methods, devices and systems, can solve problems such as unspecified handling methods, and achieve the effect of improving integrity

Active Publication Date: 2011-03-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Only UEs that are allowed by authentication are supported (Only UEs that are authenticated areallowed): UE must have a valid IMSI (International Mobile Subscriber Identity, International Mobile Subscriber Identity Code), UE authentication is successful,

Method used

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  • Switching method, device and system
  • Switching method, device and system
  • Switching method, device and system

Examples

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Example Embodiment

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0051] Such as figure 1 Shown is a flow chart of a handover method in Embodiment 1 of the present invention, which includes the following steps:

[0052] Step 101: When the mobility management entity receives a handover message of a user equipment, it judges whether the user equipment carries an emergency service.

[0053] Step 102: If the user equipment carries emergency services, the mobility management entity determines that the target cell to which the user eq...

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Abstract

The embodiment of the invention discloses a switching method, which comprises the following steps that: when a moving management entity receives messages that user equipment is switched, whether the emergency service is carried by the user equipment or not is judged; and if the user equipment carries the emergency service, the moving management entity judges whether the emergency service of the user equipment can be supported by a target cell switched by the user equipment or not, and when the target cell does not support the emergency service of the user equipment, the moving management entity returns the response message and indicates that the target cell does not support the emergency service. The embodiment of the invention has the following advantages that when the emergency service of the UE (user equipment) is not supported by the target cell, the processing method in the protocol process is supplemented, and the completeness of the protocol is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a switching method, device and system. Background technique [0002] The emergency bearer service is used to provide an emergency session supporting IMS (IP Multimedia Subsystem, Internet Protocol Multimedia Subsystem), and may be applicable to a normally attached UE (User Equipment, user equipment), or may be applicable to a UE in restricted mode. The UE's emergency bearer service is related to local configuration and has nothing to do with subscription information. When the UE is in the restricted service mode, the MME judges whether to accept the UE's emergency attach request or reject the UE's emergency attach request according to the support level of the emergency service mode. Restricted service mode refers to the state of the UE that only allows emergency calls. When the UE cannot find a suitable cell (suitable cell) to reside, or the UE has not inser...

Claims

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Application Information

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IPC IPC(8): H04W4/22H04W36/00H04W4/90
Inventor 张娟徐晖
Owner DATANG MOBILE COMM EQUIP CO LTD
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