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Method and apparatus for selecting V2X service transmission path of internet of vehicles

A transmission path and service transmission technology, applied in the field of communication, can solve problems such as channel quality changes and V2X service transmission obstruction

Inactive Publication Date: 2017-04-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention provides a method and device for selecting a transmission path of a V2X service in the Internet of Vehicles, so as to at least solve the problem in the related art that the channel quality of the PC5 / Uu interface changes due to the movement of the vehicle, and the original transmission path is no longer suitable for the V2X service. Problems that cause V2X service transmission to be blocked

Method used

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  • Method and apparatus for selecting V2X service transmission path of internet of vehicles
  • Method and apparatus for selecting V2X service transmission path of internet of vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] Example 1: In LTE coverage, V2X services are switched from Uu to PC5 interface

[0176] Figure 10 is a flow chart of a method for switching a V2X service transmission mode according to optional embodiment 1 of the present invention, such as Figure 10 As shown, the steps of the method include:

[0177] Step S1001, the base station broadcasts measurement parameters;

[0178] Wherein, the measurement parameters include: measurement parameters of the Uu port and the PC5 interface, the measurement parameters include at least the measurement object, and further include at least one of the following: measurement period, measurement threshold, and measurement event.

[0179] In step S1002, the OBU measures and reports the signal quality of the Uu port.

[0180] Among them, the OBU is performing V2X communication through the Uu interface, the OBU measures the signal quality of the Uu interface according to the measurement parameters of the base station, and the OBU reports ...

Embodiment 2

[0200] Example 2: Within LTE coverage, V2X services are switched from PC5 to Uu interface

[0201] Figure 11 is a flow chart of the method for switching the V2X service transmission mode according to the optional implementation 2 of the present invention, such as Figure 11 As shown, the steps of the method include:

[0202] Step S1101, the base station broadcasts measurement parameters.

[0203] Step S1102, the OBU measures and reports the signal quality of the PC5 port.

[0204] Step S1103, the base station judges whether to continue to communicate through the PC5, if yes, go to step S1104, otherwise, go to step S1105.

[0205] Among them, the base station determines whether to continue PC5 communication according to the signal quality of the PC5 port and / or the local load of the eNB, such as the poor signal quality of the PC5 interface (not suitable for V2X communication), or the good quality of the PC5 interface but the eNB load is light and Uu If the signal quality o...

Embodiment 3

[0217] Embodiment 3: OBU from inside to outside of LTE coverage

[0218] Figure 12 is a flow chart of a method for switching a V2X service transmission mode according to optional embodiment 3 of the present invention, as shown in Figure 12 As shown, the steps of the method include:

[0219] Step S1201, the base station broadcasts measurement parameters.

[0220] Step S1202, the OBU leaves LTE coverage.

[0221] Wherein, the OBU receives and stores the measurement parameters within the LTE coverage. The OBU is performing V2X communication through PC5, and the OBU judges that it has left the LTE coverage based on the degradation of the signal quality of the PC5 port and / or the inability to obtain system broadcast messages.

[0222] The OBU includes at least one of the following: sender OBU, receiver OBU, or both sender and receiver OBU.

[0223] Step S1203, the OBU judges whether to continue to communicate through the PC5, if yes, go to step S1204, otherwise, go to step S...

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Abstract

The invention provides a method and apparatus for selecting a V2X service transmission path of the internet of vehicles. The method includes the following steps: a road side unit RSU determining a transmission policy for indicating a transmission path of transmitting V2X services of the internet of vehicles between the RSU and an onboard unit OBU for indicating, the transmission path including a plurality of transmission paths which have a prioritized order of transmission; and the RSU selecting the transmission path which supports the V2X services on the basis of the transmission policy and the prioritized order of the transmission paths. According to the invention, the method eliminates barriers to the transmission of the V2X services when traditional transmission paths are no longer suitable for the V2X services in the presence of changes in quality of the channels of a PC5 / Uu interface due to moving of a vehicle, and increases the efficiency of transmitting V2X services.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for selecting a transmission path of a V2X service in the Internet of Vehicles. Background technique [0002] With the rapid development of economy and society, the rapid growth of automobile usage and the frequent occurrence of road traffic accidents have become one of the important factors affecting the public's sense of security in my country in recent years. Road traffic safety has become one of the basic issues affecting social harmony and improving people's livelihood. one. China urgently needs to improve traffic safety in terms of technology, policy, education and other aspects, and improving vehicle safety design is an important part of it. [0003] Technologies to improve vehicle safety are mainly divided into passive safety technologies and active safety technologies. Passive safety technology is used to protect people and objects inside and outsi...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/751H04L45/02
CPCH04L45/02H04L67/12
Inventor 许辉马子江卢忱王亚英谢玉堂
Owner ZTE CORP
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