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Communication method and communication terminal

A communication method and terminal technology, applied in the field of communication, capable of solving problems such as terminal CS domain service interruption

Inactive Publication Date: 2017-02-22
CHINA MOBILE GROUP JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the terminal moves to an area without 2G network coverage, and only 4G network and 3G network exist in this area, since the CS domain service of the terminal is only registered in the 2G network, the CS domain service of the terminal will be interrupted at this time

Method used

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  • Communication method and communication terminal
  • Communication method and communication terminal
  • Communication method and communication terminal

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Embodiment Construction

[0055] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] Such as figure 1 As shown, a schematic diagram of a system architecture applicable to the embodiment of the present invention. The system architecture includes a first network device 101 for providing a 2G network, a second network device 102 for providing a 4G network, and a third network device 103 for providing a 3G network. The first network device 103 in the embodiment of the present invention Both the terminal 104 and the second terminal 105 are terminals registered in the 2G network for the CS domain service, and registered in the 3G network or 4G network for the PS domain s...

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Abstract

The invention relates to the communication technology field, particularly relates to a communication method and a communication terminal and aims to realize uninterrupted CS domain service when a terminal is in a region without 2G network coverage. According to the method, network signal quality of a location region of the terminal is acquired, and CS domain service in the 2G network and PS domain service in the 3G or 4G network are registered for the terminal; if signal quality of the 2G network of the location region of the terminal is lower than a first threshold,and signal quality of the 3G network of the location region of the terminal is larger than a second threshold, CS domain service for the terminal is registered in the 3G network at the location region of the terminal. When the terminal enters the region without 2G network signal or having relatively poor 2G network signal quality, the terminal can have CS domain service through the 3G network, so the terminal can have uninterrupted CS domain service even when the terminal is in the region without 2G network coverage or having relatively poor 2G network signal quality.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a communication method and a terminal. Background technique [0002] With the continuous development of communication technology, various types of wireless communication systems have emerged, such as Global System for Mobile communication (GSM for short) applicable to 2G networks, time-division synchronous code division multiple access applicable to 3G networks (Time Division Synchronous Code Division Multiple Access, referred to as TD-SCDMA), applicable to the long-term evolution of 4G networks (Time Division Long Term Evolution, referred to as TD-LTE) and so on. [0003] TD-LTE adopts an all-IP network system, only the packet switching (Packet Switch, referred to as PS) domain, which can provide high-speed PS domain services, such as data services, but the current TD-LTE network is still in the transitional stage, TD-LTE In this state, VoLTE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W36/22
CPCH04W36/14H04W36/22
Inventor 陆学兵李钦竹
Owner CHINA MOBILE GROUP JIANGSU