Wireless terminal device, wireless communication method, and wireless communication system and program
US8738057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jun 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless terminal device (TA) receives a downlink signal that is repeatedly transmitted from a pre registered home repeater when requesting communication, specifies an idle channel based on idle channel information that is included in the downlink signal, and using the frequency of the uplink signal of the idle channel requests communication permission from the relay device that provides the idle channel. When communication permission cannot be received from the relay device from which communication permission was previously requested, the wireless terminal device (TA) uses the same frequency as the frequency of the downlink signal from the home repeater to transmit a signal to the wireless terminal device (TB) of an intended other party requesting communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.