Title:
METHOD FOR POLLING IN DIGITAL RADIO COMMUNICATION SYSTEM, AND METHOD SEARCHING VEHICLES
Document Type and Number:
WIPO Patent Application WO/2005/022561
Kind Code:
A1
Abstract:
A method for polling in a digital radio communication system wherein the polling time can be shortened, without any degradation of the error rate characteristic, to realize an effective communication management. In a method for polling in a digital radio communication system of the type that polls to collect information of a plurality of terminal stations, the frame format of polling response signals to be transmitted from the terminal stations to a base station is so established as to have a single-frame structure in which a periodic bit pattern is disposed in the leading portion of the frame format.
Inventors:
HIGURE KINICHI (JP)
KANAZAWA MASAYUKI (JP)
SAKAIHORI MINORU (JP)
HIRAKI YUZO (JP)
KANAZAWA MASAYUKI (JP)
SAKAIHORI MINORU (JP)
HIRAKI YUZO (JP)
Application Number:
PCT/JP2004/012176
Publication Date:
March 10, 2005
Filing Date:
August 25, 2004
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC (JP)
HIGURE KINICHI (JP)
KANAZAWA MASAYUKI (JP)
SAKAIHORI MINORU (JP)
HIRAKI YUZO (JP)
HIGURE KINICHI (JP)
KANAZAWA MASAYUKI (JP)
SAKAIHORI MINORU (JP)
HIRAKI YUZO (JP)
International Classes:
H04L29/08; H04W4/02; H04W4/029; G08G1/123; H01B7/26; H04B7/24; H04L27/20; (IPC1-7): H01B7/26
Foreign References:
| JP2003052066A | 2003-02-21 | |||
| JP2002111759A | 2002-04-12 | |||
| JP2000196689A | 2000-07-14 |
Attorney, Agent or Firm:
Ogawa, Katsuo (8th Floor No.17 Arai Building 3-3, Shinkawa 1-chom, Chuo-ku Tokyo 33, JP)
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