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4G dialing method, system and device in SIM card roaming state

A dial-up device, 4G technology, applied in the field of communication, can solve the problems of low reliability and poor network stability, and achieve the effect of ensuring stability and reliability

Pending Publication Date: 2022-04-26
瑞兴恒方网络(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 4G dialing method, system and equipment in the roaming state of the SIM card, so that even if the SIM card is in the roaming state, it can quickly and accurately find the operator network with the best signal quality and perform dialing to solve the problem. Solved the problems of low reliability and poor network stability of the existing dial-up mode

Method used

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  • 4G dialing method, system and device in SIM card roaming state
  • 4G dialing method, system and device in SIM card roaming state
  • 4G dialing method, system and device in SIM card roaming state

Examples

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Embodiment 1

[0052] Such as figure 1 As shown, the present embodiment provides a 4G dialing method in the roaming state of the SIM card, the method comprising:

[0053] S1: Check whether the SIM card is inserted, and read the unique identification information of the SIM card after confirming that the SIM card is inserted.

[0054] S2: Search all operator networks in the current environment, and extract available networks and currently used networks.

[0055] S3: Sort the extracted available networks and currently used networks according to the preset network standard priority and the network signal quality in the current environment.

[0056] S4: Dialing from the network with the highest ranking according to the sorting order until the dialing is successful.

[0057] Specifically, the preset network standard priority is 2G<3G<4G.

Embodiment 2

[0059] Such as figure 2 As shown, the present embodiment discloses a 4G dial-up system under the roaming state of the SIM card, and the system includes:

[0060] The detection module 10 is configured to check whether a SIM card is inserted.

[0061] The reading module 11 is configured to read the unique identification information of the SIM card after determining that the SIM card is inserted.

[0062] The extraction module 12 is configured to search for all operator networks in the current environment, and extract available networks and currently used networks.

[0063] The sorting module 13 is configured to sort the extracted available networks and currently used networks according to the preset network standard priority and the signal quality in the current environment.

[0064] The dialing module 14 is configured to perform dialing from the network with the highest ranking according to the sorting order until the dialing is successful.

[0065] Specifically, the network ...

Embodiment 3

[0067] Such as image 3 As shown, this embodiment discloses a 4G dial-up device in a SIM card roaming state, the device includes a SIM card 20, a 4G module 21, a processor 22, and a memory 23 for storing processor-executable instructions, the 4G module Group 21 and processor 22 perform data interaction by sending AT commands.

[0068] 4G module 21 is configured as:

[0069] Check whether the SIM card is inserted 20;

[0070] After determining to insert the SIM card 20, read the unique identification information of the SIM card 20;

[0071] Search all carrier networks in the current environment.

[0072] Processor 22 is configured to:

[0073] Extract the available network and the currently used network;

[0074] Sort the extracted available networks and currently used networks according to the preset network standard priority and the signal quality in the current environment;

[0075] Dial up from the network with the highest ranking according to the sorting order until ...

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Abstract

The invention discloses a 4G dialing method, system and device in a SIM card roaming state, and relates to the technical field of communication, and the method comprises the steps: obtaining the basic information of a 4G module; controlling the 4G module to check whether an SIM card is inserted or not; when the SIM card is inserted, the unique identification information of the SIM card is read, and the quality information of all networks of the SIM card in the current roaming state is recorded; the 4G module searches all operator networks in the current environment, and obtains available networks and currently used networks in all operator networks; sorting the extracted available networks and the currently used networks according to a preset network type priority and the signal quality in the current environment; and sequentially dialing from the highest network by using the pppd dialing tool according to the sorting order until the dialing is successful. According to the invention, the problems of low reliability and poor network stability of a dialing mode in the prior art are solved.

Description

[0001] The present invention is a divisional application titled "A 4G Dialing Method, System and Internet of Things Device in SIM Card Roaming State", wherein the application number of the parent application is 202010228099.6, and the application date is 2020.03.27. technical field [0002] The present invention relates to the field of communication technology, in particular to a 4G dialing method, system and equipment in a SIM card roaming state. Background technique [0003] At present, with the continuous popularization of IoT applications, 4G communication is an important way for IoT devices to exchange data with the Internet. The stability and reliability of 4G signals have become an important factor in determining whether IoT devices are stable and reliable. By default, the existing 4G dial-up plans automatically search for available operator networks in the current environment through the 4G chip, and automatically select the appropriate network for dial-up. This solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/08H04W48/16H04W48/18
CPCH04W48/08H04W48/16H04W48/18
Inventor 康秋华李嘉鹏谢利超
Owner 瑞兴恒方网络(深圳)有限公司