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NB-IoT fixed terminal and vehicle-mounted mobile NB-IoT system

A fixed terminal, vehicle mobile technology, applied in vehicle communication, transmission system, vehicle components, etc., can solve the problems of increased power consumption, uneven battery life, increased network equipment maintenance costs, etc., to achieve the effect of avoiding power consumption

Active Publication Date: 2020-08-28
信物(天津)技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although NB-IoT terminals can work at low coverage levels (for example: coverage level 1, or coverage level 2) (narrowband transmission increases power spectral density, and repeated transmissions receive for a long time), the power consumption increases significantly, making NB-IoT terminals The battery life of equipment is uneven, increasing the maintenance cost of network equipment

Method used

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  • NB-IoT fixed terminal and vehicle-mounted mobile NB-IoT system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] image 3 A schematic structural diagram of the NB-IoT fixed terminal in Embodiment 1 of the present application is shown.

[0047] As shown in the figure, the NB-IoT fixed terminal includes:

[0048] A level determination module 301, configured to determine the current coverage level according to the quality of the downlink synchronization signal;

[0049]The processing module 302 is configured to, when it is determined that the current coverage level is a low coverage level, not attach to the base station of the low coverage level and select a TAU time in the pre-stored tracking area update TAU sequence, and wait for the NB within the TAU time -IoT mobile base station.

[0050] During specific implementation, the division of the coverage level can adopt the existing standard division method (divided into three coverage levels of coverage level 0, 1, and 2, each coverage level has a corresponding coverage range), and other division methods can also be used , this app...

Embodiment 2

[0067] Based on the same inventive concept, an embodiment of the present application provides a vehicle-mounted mobile NB-IoT system, which will be described below.

[0068] Figure 4 A schematic structural diagram of the NB-IoT mobile system in Embodiment 2 of the present application is shown.

[0069] As shown in the figure, the NB-IoT mobile system includes:

[0070] The NB-IoT mobile base station 401 is used to establish a connection with the NB-IoT fixed terminal, negotiate and update the TAU time of the tracking area;

[0071] The NB-IoT mobile terminal 402 is configured to change the identity of the NB-IoT mobile terminal to the NB-IoT The identity of the fixed terminal.

[0072] Using the vehicle-mounted mobile NB-IoT system provided in the embodiment of this application, when the mobile NB-IoT mobile base station does not establish a connection with the NB-IoT fixed terminal within the TAU time, it will change the identity of its own NB-IoT mobile terminal It is t...

Embodiment 3

[0082] Based on the same inventive concept, the embodiment of the present application also provides a data processing method for NB-IoT fixed terminals. The problem-solving principle of this method is similar to that of the NB-IoT fixed terminals in Embodiment 1, and the repetitions will not be repeated.

[0083] Figure 5 It shows a schematic flowchart of implementing the data processing method of the NB-IoT fixed terminal in Embodiment 3 of the present application.

[0084] As shown in the figure, the data processing method of the NB-IoT fixed terminal includes:

[0085] Step 501. Determine the current coverage level according to the quality of the downlink synchronization signal;

[0086] Step 502. When it is determined that the current coverage level is a low coverage level, do not attach to the base station of the low coverage level, and select the TAU time in the pre-stored tracking area update TAU sequence, and wait for NB-IoT within the TAU time mobile base station. ...

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Abstract

The invention relates to a NB-IoT fixed terminal and a vehicle-mounted mobile NB-IoT system, which comprise that the NB-IoT fixed terminal determines a coverage level, does not attach to a base station with a low coverage level when the coverage level is low, and waits for the mobile NB-IoT base station; the NB-IoT mobile base station establishes a connection with the NB-IoT fixed terminal and negotiates TAU time, and when the connection with the NB-IoT fixed terminal is not successfully established, the identifier of the NB-IoT mobile terminal is changed into the identifier of the NB-IoT fixed terminal. In the application, the NB-IoT fixed terminal is not attached to the low-coverage-level base station, so that excessive power consumption under the low coverage level is avoided; and whenthe NB-IoT mobile base station does not successfully establish connection with the NB-IoT fixed terminal, the NB-IoT mobile terminal changes to the identifier of the NB-IoT fixed terminal and accessesthe network to maintain registration of the NB-IoT fixed terminal in the core network.

Description

technical field [0001] The present application relates to wireless communication technologies, and in particular, to an NB-IoT terminal and a vehicle-mounted mobile NB-IoT system. Background technique [0002] Mobile communication is moving from the connection between people to the connection between people and things and between things and things. NB-IoT based on cellular network technology occupies 180kHz bandwidth and can be directly deployed on GSM network, UMTS network or LTE network to reduce deployment time. cost and achieve smooth upgrades. China's three major operators have deployed a large number of NB-IoT networks based on the already developed IoT services. [0003] figure 1 A schematic diagram showing the coverage of NB-IoT terminals. [0004] As shown in the figure, the coverage can be roughly divided into coverage level 0, coverage level 1 and coverage level 2. [0005] Although NB-IoT terminals can work at low coverage levels (for example: coverage level ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/20H04W60/00H04L29/08H04W4/48
CPCH04W48/20H04W60/00H04W4/48H04L67/12Y02D30/70
Inventor 钟永锋
Owner 信物(天津)技术有限公司