Mobile station communication device, inter-mobile station communication system, and inter-mobile station communication method

• US 8,477,751 B2
• Filed: 09/21/2011
• Issued: 07/02/2013
• Est. Priority Date: 04/01/2009
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Nakaya, Yuuta, Takano, Takeshi, Saito, Tamio, Yoshida, Makoto, Iwamatsu, Takanori, Saito, Naoyuki
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US13/238,517
• Publication Number:
  US 20120134336A1
• Time in Patent Office: 650 Days
• Field of Search: 701/408
• US Class Current: 370/338
• CPC Class Codes: G08G 1/091 Traffic information broadcasting broadcasting communication H04H
• CPC Class Codes: G08G 1/094 Hardware aspects; Signal processing or signal properties, e.g. frequency bands
• CPC Class Codes: G08G 1/161 Decentralised systems, e.g. inter-vehicle communication
• CPC Class Codes: H04W 4/48 for in-vehicle communication
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal

Abstract

A communication device is used by a mobile station to perform wireless communication with another mobile station. The communication device includes a processor configured to set a transmission resource according to a present position of the mobile station, the transmission resource being set based on transmission resource association information including different transmission resources assigned to plural assignment areas provided at different positions along a road through which the mobile station passes; and a transmitter configured to transmit data with the use of the transmission resource that has been set.

Claims

1. A communication system in which wireless communication is performed between mobile stations, the communication system comprising:

each of the mobile stations including,

a mobile station position detecting unit configured to detect a present position of the mobile station in which the mobile station position detecting unit is included,

a processor configured to set a transmission resource according to a present position of the mobile station in which the processor is included, the transmission resource being set based on transmission resource association information including different transmission resources assigned to plural assignment areas provided at different positions along a road through which the mobile station in which the transmission resource setting unit is included passes,

a transmitter configured to transmit data with the use of the transmission resource that has been set, and

a receiver configured to receive data transmitted from another mobile station,

wherein a transmission/reception distance set for performing transmission and reception between the mobile stations is specified in advance,

the plural assignment areas to which the different transmission resources are assigned are provided in a first area,

a second area is provided outside the first area, the second area including plural assignment areas to which the same transmission resources as those of the first area are assigned, and

a distance between an assignment area in the first area and an assignment area in the second area using the same transmission resource is greater than two times that of the transmission/reception distance.

2. The communication system according to claim 1, wherein the transmission resource is determined by at least one method among time division multiplexing, frequency division multiplexing, and code division multiplexing.