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Communication switching method and system of NB-IoT equipment

A device and switching back technology, applied in the field of narrowband Internet of Things, can solve problems such as inability to transmit data, limited coverage, and NB-IoT device disconnection, etc., to improve stability and reliability, expand application range, and improve user experience Effect

Active Publication Date: 2017-06-20
SHENZHEN WATER WORLD INFORMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In many applications of the Internet of Things, NB-IoT devices (that is, NB-IOT-based IoT terminals) are usually required to be online all the time. However, the coverage of the current NB-IOT network is still limited. When NB-IoT devices are in When the NB-IoT network is outside the coverage area, the NB-IoT device is in a disconnected state and cannot transmit data, which affects the stability and reliability of NB-IoT, making it impossible for users to understand the on-site conditions and affecting user experience

Method used

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Embodiment 2

[0107] refer to Figure 5 , propose a communication switching method for NB-IoT devices according to the second embodiment of the present invention, the method is applied to NB-IoT devices, and includes the following steps:

[0108] S21. When it is detected that the NB-IoT network is offline, start the GPRS search network registration process to access the GPRS network, and send location information to the system server through the GPRS network.

[0109] In the embodiment of the present invention, the NB-IoT device is improved. like figure 2 As shown, the NB-IoT device not only includes the NB-IoT module and the power amplifier (Power Amplifier, PA) for transmitting radio frequency, but also adds the GPRS module, matching circuit, radio frequency switch and control module. The frequency bands of NB-IOT and GPRS have almost the same bandwidth, so the RF PA can be multiplexed when sending signals; and the flight mode definition of NB-IOT and GPRS is defined. The flight mode m...

Embodiment 3

[0118] refer to Image 6 , propose a communication switching system for NB-IoT devices according to the third embodiment of the present invention, the system includes NB-IoT devices, a system server and a location server, wherein:

[0119] NB-IoT device: used to start the GPRS search network registration process to access the GPRS network when it detects that the NB-IoT network is offline, and send location information to the system server through the GPRS network; when receiving the NB-IoT sent by the system server When the IoT start command, start the NB-IoT Souwang registration process to switch back to the NB-IoT network. The location information may be positioning information, such as GPS information, BDS information, GLONASS information, etc., or LBS information of GPRS.

[0120] like Figure 7 As shown, the NB-IoT device includes a GPRS module, an NB-IoT module and a control module, and the control module is used for:

[0121] When it is detected that the NB-IoT netw...

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Abstract

The invention discloses a communication switching method and system of NB-IoT equipment. The method comprises the steps that: when the NB-IoT equipment detect a condition that an NB-IoT network is offline, a GPRS search network registration process is started to access a GPRS network, and position information is sent to a system server through the GPRS network; a position server receives the position information forwarded by the system server, whether the preset range of a position where the NB-IoT equipment is located has a NB-IoT base station is judged according to the position information, and notification information is sent to the system server when the preset range of the position where the NB-IoT equipment is located has the NB-IoT base station; when the system server receives the notification information, an NB-IoT starting instruction is sent to the NB-IoT equipment; and when the NB-IoT equipment receives the NB-IoT starting instruction, an NB-IoT search network registration process is started to switch to the NB-IoT network. The seamless switching between the NB-IoT network and the GPRS network is realized, the global network coverage of NB-IoT equipment can be almost achieved, the low power advantage of the NB-IoT equipment is maintained, the NB-IoT equipment can be always online, and the stability and reliability of NB-IoT are improved.

Description

technical field [0001] The present invention relates to the technical field of narrowband Internet of things, in particular to a communication switching method and system for NB-IoT equipment. Background technique [0002] NB-IoT is the abbreviation of cellular-based Narrow Band-Internet of Things (Narrow Band-Internet of Things). It is an Internet of Things technology and an important branch of the Internet of Everything. Positioned in the carrier-level, low-speed IoT market based on licensed spectrum, it has broad application prospects. NB-IoT is an emerging technology in the Internet of Things (IoT) field, which supports cellular data connections of low-power devices in wide area networks, also known as low-power wide-area networks (LPWA). NB-IoT supports efficient connection of devices with long standby time and high network connection requirements. [0003] In many applications of the Internet of Things, NB-IoT devices (that is, NB-IOT-based IoT terminals) are usually...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04W36/14H04W36/32H04W48/16
CPCH04W4/70H04W36/14H04W36/32H04W48/16Y02D30/70
Inventor 郑勇金志军张立新
Owner SHENZHEN WATER WORLD INFORMATION CO LTD
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