Communication switching method and system of NB-IoT equipment
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
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
View PDF5 Cites 22 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more