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Test method and system for coexistence of communication systems in Internet of vehicles intelligent terminal

A technology of an intelligent terminal and a communication system, applied in the field of testing methods and systems for coexistence of communication systems in intelligent terminals of the Internet of Vehicles, can solve problems such as being easily interfered, receiving signal interference, unable to truly reflect the status of users, and reducing The effect of testing costs

Active Publication Date: 2018-03-09
DALIAN ROILAND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of test cannot reflect the mutual interference between the wireless communication systems in the Internet of Vehicles terminal. If the global positioning system GPS, wireless LAN technology WiFi, and cellular technology Gellular are turned on at the same time, the interference test between them is ignored and cannot truly reflect user status
[0003] Now there are more and more applications of the Internet of Vehicles, for GPS navigation, using LTE technology to connect to 4G networks, and at the same time sharing WIFI hotspots, when these systems are turned on at the same time, the high-power transmission signals of WiFI or LTE will affect WIFILTE The receiving signal causes interference, especially the GPS signal is very weak and is more likely to be interfered

Method used

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  • Test method and system for coexistence of communication systems in Internet of vehicles intelligent terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] When the Gellular test antenna is 2G,

[0024] A test method for coexistence of a communication system in an intelligent terminal of the Internet of Vehicles, comprising:

[0025] S1: The wireless comprehensive tester is connected to the Gellular test antenna through channel I in the frequency band GSM900, and the channel ARFCN=72. The wireless comprehensive tester enables the intelligent terminal of the Internet of Vehicles to transmit the maximum power, and its transmission and reception indicators are transmitted to the PC through the GPIB line;

[0026] S2: The PC controls the wireless comprehensive tester to send a GPS signal through channel Ⅱ, and the control module automatically selects the GPS link according to the frequency of the signal. After the GPS test antenna is received by the intelligent terminal of the Internet of Vehicles, it automatically switches to the WiFi link after Ns. The WiFi test antenna is received by the intelligent terminal of the Internet...

Embodiment 2

[0032] When the Gellular test antenna is 2G,

[0033] A test method for coexistence of a communication system in an intelligent terminal of the Internet of Vehicles, comprising:

[0034] S1: The wireless comprehensive tester is connected to the Gellular test antenna through the channel I in the frequency band DCS1800, and the channel ARFCN=700. The wireless comprehensive tester enables the intelligent terminal of the Internet of Vehicles to transmit the maximum power, and its transmission and reception indicators are transmitted to the PC through the GPIB line;

[0035] S2: The PC controls the wireless comprehensive tester to send a GPS signal through channel Ⅱ, and the control module automatically selects the GPS link according to the frequency of the signal. After the GPS test antenna is received by the intelligent terminal of the Internet of Vehicles, it automatically switches to the WiFi link after Ns. The WiFi test antenna is received by the intelligent terminal of the In...

Embodiment 3

[0040] When the Gellular test antenna is 3G,

[0041] A test method for coexistence of a communication system in an intelligent terminal of the Internet of Vehicles, comprising:

[0042] S1: The wireless comprehensive tester is connected to the Gellular test antenna through the channel Ⅰ in the frequency band of 1.9GHz, and the channel ARFCN=9540. The wireless comprehensive tester enables the intelligent terminal of the Internet of Vehicles to transmit the maximum power, and its transmission and reception indicators are transmitted to the PC through the GPIB line. ;

[0043]S2: The PC controls the wireless comprehensive tester to send a GPS signal through channel Ⅱ, and the control module automatically selects the GPS link according to the frequency of the signal. After the GPS test antenna is received by the intelligent terminal of the Internet of Vehicles, it automatically switches to the WiFi link after Ns. The WiFi test antenna is received by the intelligent terminal of t...

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Abstract

The invention discloses a test method and system for coexistence of communication systems in an Internet of vehicles intelligent terminal. The method includes the following steps: a wireless integrated tester is connected to a Gellular test antenna at a certain frequency band and a certain channel through a channel I, and the wireless integrated tester transmits transmitting and receiving indexesof the Internet of vehicles intelligent terminal to a PC; the PC controls the wireless integrated tester to send a GPS signal through a channel II, a control module automatically selects a GPS link according to the frequency of the signal, the signal is received by the Internet of vehicles intelligent terminal through a GPS test antenna, the GPS link is automatically switched to a WiFi link afterNs, the signal is received by the Internet of vehicles intelligent terminal through a WiFi test antenna, and after Ns, the wireless integrated tester transmits the transmitting and receiving indexes of the Internet of vehicles intelligent terminal to the PC under the GPS test antenna and the WiFi test antenna respectively; and whether the communication systems can coexist is observed through the PC. According to the application, the mutual interference between wireless communications in the Internet of vehicles intelligent terminal can be reflected more truly, and the use state of users can becloser.

Description

technical field [0001] The invention belongs to the field of intelligent terminals of the Internet of Vehicles, and specifically relates to a test method and system for coexistence of communication systems in the intelligent terminals of the Internet of Vehicles. Background technique [0002] At present, with the continuous development of communication technology, there are more and more wireless communication systems supported by IoV terminals, such as global positioning system GPS, wireless local area network technology WiFi, cellular technology Gellular (2G / 3G / 4G), and each wireless The communication system divides frequency bands with different bandwidths. When these wireless communication systems work at the same time, mutual interference will inevitably occur. At present, the Internet of Vehicles terminal measures the performance of a certain communication system independently. For example, when GSM900 is transmitting at the maximum power, it measures the receiving se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/345H04W24/06
CPCH04W24/06H04B17/345
Inventor 田雨农吴立兴
Owner DALIAN ROILAND SCI & TECH CO LTD