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A random access method in v2x network

A random access and network technology, applied in wireless communication, transmission system, electrical components, etc., can solve the problem that the communication distance, time delay or reliability of the transmission index cannot meet the technical requirements of the V2X service for the transmission index

Active Publication Date: 2020-01-24
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, Dedicated Short Range Communications (DSRC) is usually used to transmit V2X services, but its transmission indicators (such as communication distance, delay or reliability, etc.) cannot meet the requirements of V2X services for transmission indicators. need
In particular, the current delay problem of V2X services is relatively prominent

Method used

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  • A random access method in v2x network
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  • A random access method in v2x network

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Embodiment Construction

[0030] In order to make the objectives, technical means and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings.

[0031] The random access technology is an important technology of media access control in a communication system, and it is a necessary process for establishing a wireless link between a user equipment (UE, UserEquipment) and the network. For the V2X service, in this application, the delay of the entire V2X service is reduced by reducing the delay of the random access process of the V2X service.

[0032] Next, analyze the problem that currently causes a large delay in the random access process of the V2X service: in the existing 3GPP protocol, for the random access process, the network side cannot identify the UE type and whether the random access process triggered by the V2X service is. into the process. When the UE performs the contention-based random acc...

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Abstract

The invention discloses a random access method in a V2X network. The method comprises the following steps of a Vehicle-UE or a UE-type RSU carrying a terminal indication identifier in the Msg3 sent toa network side for indicating whether the randomly accessed UE is a Vehicle UE or a UE-type RSU during competitive random access; and the eNodeB selecting the accessing terminal according to the terminal indication identifier, wherein access processing of the Vehicle-UE or a UE-type RSU is superior to a standard terminal. By applying the method, the time delay of V2X service can be reduced.

Description

technical field [0001] The present application relates to an access technology in a communication system, and in particular, to a random access method in a V2X network. Background technique [0002] V2X (Vehicle to X) is the information exchange between the vehicle and the outside world, and is the key technology of the future intelligent transportation system. V2X was approved as a project at the 3GPP RAN#68 conference, and it mainly studies the vehicle data transmission scheme based on the 3GPP communication protocol. V2X communication includes V2V communication (vehicle-to-vehicle communication), V2I communication (vehicle-to-roadside infrastructure communication), and V2P communication (vehicle-pedestrian communication). V2X applications will improve driving safety, reduce congestion and vehicle energy consumption, improve traffic efficiency and in-vehicle infotainment. [0003] In the prior art, Dedicated Short Range Communications (DSRC for short) is usually used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/10H04W72/12H04W74/08H04L29/08
Inventor 周欣姜春霞李维娜吕征南
Owner POTEVIO INFORMATION TECH CO LTD
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