Title:
ROADSIDE APPARATUS AND COMMUNICATION CONGESTION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/261908
Kind Code:
A1
Abstract:
[Problem] To make it possible to reliably avoid ITS communication congestion at an intersection of streets, and to appropriately assist the passage of an automatic driving vehicle. [Solution] A roadside device 3 of a cooperation source acquires terminal movement information (the number of entering terminals) pertaining to the movement direction of pedestrian terminals present around a host device, and transmits the terminal movement information to a roadside device of a cooperation destination. Upon receiving the terminal movement information from the roadside device of the cooperation source, the roadside device of the cooperation destination determines, on the basis of the terminal movement information, the presence/absence of congestion in communications between terminals at a prescribed timepoint in the future, and if the determination is that there will be congestion in communications between terminals, transmits to a pedestrian terminal 1 an instruction for a congestion avoidance operation that restricts communications between terminals. Upon receiving the congestion avoidance operation instruction from the roadside device of the cooperation destination, the pedestrian terminal executes, as the congestion avoidance operation, an operation for switching from direct communications by inter-terminal communication to indirect communications via the roadside device.
Inventors:
UENO TSUYOSHI
SUDO HIROAKI
AIHARA KOICHI
YASUGI MAKOTO
NAKAGAWA YOICHI
SUDO HIROAKI
AIHARA KOICHI
YASUGI MAKOTO
NAKAGAWA YOICHI
Application Number:
PCT/JP2020/021943
Publication Date:
December 30, 2020
Filing Date:
June 03, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04W28/08; H04W4/40; H04W64/00; H04W76/23; H04W92/18
Foreign References:
| JP2017175296A | 2017-09-28 | |||
| JP2015207940A | 2015-11-19 | |||
| JP2009212707A | 2009-09-17 |
Attorney, Agent or Firm:
OSHIMA & PARTNERS (JP)
Download PDF:
Previous Patent: GAME TABLE SYSTEM
Next Patent: POLYMER COMPOSITE PIEZOELECTRIC SUBSTANCE, PIEZOELECTRIC FILM, PIEZOELECTRIC LOUDSPEAKER, AND FLEXIB...
Next Patent: POLYMER COMPOSITE PIEZOELECTRIC SUBSTANCE, PIEZOELECTRIC FILM, PIEZOELECTRIC LOUDSPEAKER, AND FLEXIB...