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Cell falling-back method and equipment

A cell, mobile terminal technology, applied in the field of communication, can solve problems such as call extension

Active Publication Date: 2013-12-25
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a cell fallback method and equipment to solve the problem of long call delay when the cell fallback is realized through the existing CSFB technology

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  • Cell falling-back method and equipment
  • Cell falling-back method and equipment

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Embodiment Construction

[0023] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0024] With the development of mobile communication technology, dual standby mobile terminals gradually occupy more and more proportions in the market. Moreover, with the development of the LTE technology, the communication network will also enter the LTE era. Therefore, the dual-standby mobile terminal in the LTE mode has gradually become a focus of attention.

[0025] figure 1 It is a schematic diagram of a cell fallback method provided by an embodiment of the present invention. Such as figure 1 As shown, the cell fallback method includes the following steps:

[0026] 101. A mobile terminal starts CSFB fallback; the mobile terminal supports a first SIM card of an LTE standard and a second SIM card of a 2G / 3G standard.

[0027] Wherein, the mobile terminal is a dual-standby terminal in LTE mode, including a first ...

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Abstract

The invention provides a cell falling-back method and equipment. A mobile terminal starts CSFB falling-back; the mobile terminal supports a first SIM card of an LTE system and a second SIM card of a 2G / 3G system; the mobile terminal obtains network information of a first cell where the second SIM card is attached at present from a storage unit; the mobile terminal sends the network information to an MME to enable the MME to send the network information to a second base station corresponding to a cell where the first SIM card is attached and to enable the second base station to send a switching request to a first base station according to the network information; the mobile terminal receives a switching instruction sent by the second base station; the switching instruction is sent to the second base station when the first base station receives the switching request and then allows a CS area of the first SIM card to fall back to the first cell; the mobile terminal enables the CS area of the first SIM card to fall back to the first cell according to the switching instruction. The cell falling-back method can reduce CS area calling time delay.

Description

technical field [0001] The present invention relates to communication technology, in particular to a cell fallback method and equipment. Background technique [0002] In the initial stage of Long Term Evolution (LTE for short) network deployment, the LTE network mainly provides broadband data services, while the voice service solutions of most operators adopt Circuit Switched Fallback (CSFB for short) technology, that is, mobile terminal When performing CS domain services such as voice, it needs to fall back to the second-generation mobile communication technology (2G for short) / 3rd-generation mobile communication technology (3rd-generation, 3G for short) network, so as to utilize the advantages and disadvantages of the 2G / 3G network. High coverage and mature technology provide voice service support for LTE network users. [0003] At present, in the LTE network, after the mobile terminal is turned on, the LTE standard smart card (Subscriber Identity Module, SIM for short) w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/14
Inventor 袁晓静
Owner CHINA UNITED NETWORK COMM GRP CO LTD