Relay device, wireless communication method, and wireless communication system
US8654700B2 · kind B2 · utility
1Cited by
1References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 28, 2009 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Sep 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/047
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A frequency band of 12.5 kHz that two repeaters (2A), (2B) are allowed to utilize is divided into two frequency bands, divisional frequency bands of 6.25 kHz are allocated to respective repeaters (2A), (2B), the repeater (2A) which is one specific repeater suspends transmission of a signal at a certain time set beforehand, another repeater (2B) is instructed to suspend transmission of a signal, and after signal transmission at individual repeaters (2A), (2B) are suspended, the repeater (2A) transmits a defined CW-ID signal which is a call signal given to the whole two repeaters (2A), (2B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.