Title:
WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/239789
Kind Code:
A1
Abstract:
Provided is a wireless communication method in a wireless communication system for bidirectionally transmitting mobile entity control information using a time-derived channel that performs frequency hopping between a stationary wireless station and a mobile wireless station, wherein: the mobile wireless station synchronizes timing between the wireless stations by a preamble signal; in a plurality of stationary wireless stations that are close to each other and constitute a group, frequency hopping sequences are orthogonalized and the same preamble signal is used; and between different groups of stationary wireless stations, overlapping of frequency hopping sequences in some or all time-derived channels is tolerated, and different preamble signals are used.
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Inventors:
FUJISHIMA KENZABURO (JP)
Application Number:
PCT/JP2019/019639
Publication Date:
December 19, 2019
Filing Date:
May 17, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H04B1/7156; H04B1/7143; H04W56/00; H04W72/04
Domestic Patent References:
| WO2017018539A1 | 2017-02-02 | |||
| WO2000052851A1 | 2000-09-08 |
Foreign References:
| JP2009171078A | 2009-07-30 | |||
| US20060067205A1 | 2006-03-30 | |||
| JPH08204615A | 1996-08-09 |
Attorney, Agent or Firm:
TOU-OU PATENT FIRM (JP)
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