Invention Grant
US08094642B2 Polling method and vehicle search method in digital radio communication system
失效
数字无线电通信系统中的轮询方法和车辆搜索方法
- Patent Title: Polling method and vehicle search method in digital radio communication system
- Patent Title (中): 数字无线电通信系统中的轮询方法和车辆搜索方法
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Application No.: US12881352Application Date: 2010-09-14
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Publication No.: US08094642B2Publication Date: 2012-01-10
- Inventor: Kin'ichi Higure , Masayuki Kanazawa , Minoru Sakaihori , Yuzo Hiraki
- Applicant: Kin'ichi Higure , Masayuki Kanazawa , Minoru Sakaihori , Yuzo Hiraki
- Applicant Address: JP Tokyo
- Assignee: Hitachi Kokusai Electric, Inc.
- Current Assignee: Hitachi Kokusai Electric, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2003-303256 20030827; JP2004-000806 20040106
- Main IPC: H04J3/16
- IPC: H04J3/16 ; H04L12/42 ; H04L12/403 ; G05B23/02 ; H04M11/00 ; G06F3/00 ; G06F5/00 ; G06F13/22
Abstract:
The present invention provides a polling method in a radio digital communication system making it possible to shorten time required for polling without causing increase in an error rate and to efficiently manage and administrate communications. In a digital radio communication system for collecting information from a plurality of terminal stations by polling, a polling response signal to be transmitted from each terminal station to a base station has a frame format constructed of a one-frame in which a cyclic bit pattern is placed at a leading end of the frame format.
Public/Granted literature
- US20100329233A1 POLLING METHOD AND VEHICLE SEARCH METHOD IN DIGITAL RADIO COMMUNICATION SYSTEM Public/Granted day:2010-12-30
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