Title:
Radio communications system
Document Type and Number:
Japanese Patent JP6109100
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a radio communication system capable of automatically performing accurate frequency switchover processing.SOLUTION: Only when a train radio on-vehicle device 2 of a train 1 receives an advance notice signal and a determination signal from a CH switchover advance notice base station 31 and a CH switchover determination base station 32 in a manner of satisfying a normal advance notice determination reception condition, it starts frequency switchover processing to switch the frequency of radio communication. The normal advance notice determination reception condition includes a key data accordance condition that key data in a storage unit 24 in the train radio on-vehicle device 2 coincides with each of key data in the CH switchover advance notice base station 31 and CH switchover determination base station 32, an advance notice signal single reception condition, a determination signal single reception condition, reception signal and determination signal reception contents conditions, and a reception time interval condition.
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Inventors:
Satoshi Hamada
Sugiura Tetsuhiro
Hideyuki Tanaka
Sugiura Tetsuhiro
Hideyuki Tanaka
Application Number:
JP2014032482A
Publication Date:
April 05, 2017
Filing Date:
February 24, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04W36/06; H04W4/04; H04W36/24; H04W72/04
Domestic Patent References:
| JP2010010865A | ||||
| JP2009225135A | ||||
| JP2002368675A | ||||
| JP2003224506A | ||||
| JP2000229571A | ||||
| JP9149136A | ||||
| JP2001054159A |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Takahiro Arita