Title:
COMMUNICATION SYSTEM AND ONBOARD DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/027121
Kind Code:
A1
Abstract:
A communication system (1) includes a first communication device (4) and a second communication device (2) that perform two-way wireless communication. An onboard device (4) is installed in a vehicle as the first communication device. The onboard device (4) comprises a main antenna (51), at least one sub-antenna (6), a first communication execution unit (55), and a determination unit (59). When second direction information that is communication direction information and indicates that a communication direction is a second direction is included in a communication frame received by the sub-antenna, the determination unit determines that the transmission source of the communication frame is the second communication device. The second communication device comprises a transmission/reception antenna (21) and a second communication execution device (24).
Inventors:
MATSUDA TOMOYUKI (JP)
FUKATSU YOICHI (JP)
FUKATSU YOICHI (JP)
Application Number:
PCT/JP2022/031924
Publication Date:
March 02, 2023
Filing Date:
August 24, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H04W28/06; H04B1/3822; H04W4/40; H04W84/00; H04W92/18
Foreign References:
| JP2021509786A | 2021-04-01 | |||
| JP2018046519A | 2018-03-22 | |||
| JP2006511140A | 2006-03-30 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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