Mobile its station and method of transmitting/receiving a message thereof

Patent metadata

Field	Value
Publication number	US-2020107186-A1
Application number	US-201916246140-A
Country	US
Kind code	A1
Filing date	Jan 11, 2019
Priority date	Oct 1, 2018
Publication date	Apr 2, 2020
Grant date	—

Abstract

A method of controlling a first mobile Intelligent Transport System (ITS) station. The method includes identifying a second mobile ITS station having a software version updatable on the first mobile ITS station based on receiving a message from at least one neighbor mobile ITS station through a first communication interface; making a request for a software update file for the updatable software version to the second mobile ITS station through the first communication interface; and receiving the software update file from the second mobile ITS station while a connection to the second mobile ITS station is maintained through the first communication interface.

First claim

What is claimed is:

1 . A method of controlling a first mobile Intelligent Transport System (ITS) station, the method comprising:
identifying a second mobile ITS station having a software version updatable on the first mobile ITS station based on receiving a message from at least one neighbor mobile ITS station through a first communication interface; making a request for a software update file for the updatable software version to the second mobile ITS station through the first communication interface; and receiving the software update file from the second mobile ITS station while a connection to the second mobile ITS station is maintained through the first communication interface.

2 . The method of claim 1 , wherein the identifying the second mobile ITS station comprises:
determining whether the second mobile ITS station drives a same route of at least one partial section of a route of the first mobile ITS station.

3 . The method of claim 1 , further comprising:
while the software update file is received from the second mobile ITS station, maintaining a distance between the first mobile ITS station and the second mobile ITS station equal to or smaller than a preset value.

4 . The method of claim 1 , further comprising:
confirming a congestion estimated section of a route of the first mobile ITS station; presetting a software version to update in the congestion estimated section; and identifying the second mobile ITS station having the preset software version if the first mobile ITS station enters the congestion estimated section.

5 . The method of claim 1 , further comprising:
if a connection to the second mobile ITS station is disconnected while receiving the software update file, searching for a third mobile ITS station having the updatable software version; and receiving a rest of the software update file from the third mobile ITS station.

6 . The method of claim 1 , wherein the first communication interface comprises a Dedicated Short Range Communication (DSRC) interface.

7 . The method of claim 6 , further comprising:
confirming a service channel having a lowest Channel Busy Ratio (CBR) among a plurality of channels of the DSRC interface through a control channel of the DSRC interface.

8 . The method of claim 7 , further comprising:
making a request for the software update file to the second mobile ITS station using the confirmed service channel; and receiving the software update file from the second mobile ITS station.

9 . The method of claim 1 , further comprising:
if a connection to the second mobile ITS station is disconnected while receiving the software update file, receiving a rest of the software update file from the second mobile ITS station through a second communication interface different from the first communication interface.

10 . The method of claim 9 , wherein the second communication interface comprises ITS-G5 interface and LTE PC5 interface.

11 . The method of claim 1 , further comprising:
if the reception of the software update file is completed and the first mobile ITS station stops, rebooting a system of the first mobile ITS station.

12 . The method of claim 1 , further comprising:
if there are a plurality of software updatable on the first mobile ITS station, making a request for the software update file to the second mobile ITS station having an updatable version of software meeting a prescribed condition.

13 . The method of claim 12 , wherein the prescribed condition is met, if the second mobile ITS station stops and the reception of the software update file is completed within a stop estimated time of the second mobile ITS station.

14 . A first mobile Intelligent Transport System (ITS) station, comprising:
a communication device; and a processor configured to: identify a second mobile ITS station having a software version updatable on the first mobile ITS station based on receiving a message from at least one neighbor mobile ITS station through a first communication interface, make a request for a software update file for the updatable software version to the second mobile ITS station through the first communication interface, and receive the software update file from the second mobile ITS station while a connection to the second mobile ITS station is maintained through the first communication interface.

15 . The first mobile ITS station of claim 14 , wherein the processor identifies the second mobile ITS station by:
determining whether the second mobile ITS station drives a same route of at least one partial section of a route of the first mobile ITS station.

16 . The first mobile ITS station of claim 14 , wherein the processor is further configured to:
while the software update file is received from the second mobile ITS station, maintain a distance between the first mobile ITS station and the second mobile ITS station equal to or smaller than a preset value.

17 . The first mobile ITS station of claim 14 , wherein the processor is further configured to:
confirm a congestion estimated section of a route of the first mobile ITS station, preset a software version to update in the congestion estimated section, and identify the second mobile ITS station having the preset software version if the first mobile ITS station enters the congestion estimated section.

18 . The first mobile ITS station of claim 14 , wherein the processor is further configured to:
if a connection to the second mobile ITS station is disconnected while receiving the software update file, search for a third mobile ITS station having the updatable software version, and receive a rest of the software update file from the third mobile ITS station.

19 . The first mobile ITS station of claim 14 , wherein the first communication interface comprises a Dedicated Short Range Communication (DSRC) interface.

20 . The first mobile ITS station of claim 19 , wherein the processor is further configured to:
confirm a service channel having a lowest Channel Busy Ratio (CBR) among a plurality of channels of the DSRC interface through a control channel of the DSRC interface.

Assignees

• Lg Electronics Inc

Inventors

• Park Suho
• KI Hyunho
• Kim Hansung
• Bae Jaeseung
• Sung Changhun
• Yoon Jaehwan

Classifications

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• G06F8/65 Primary

  Updates (security arrangements therefor G06F21/57) · CPC title

• H04W8/24 Primary

  Transfer of terminal data · CPC title

• H04W28/0284

  detecting congestion or overload during communication (monitoring arrangements H04L43/00) · CPC title

• H04W4/40

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title