Control device, communication terminal, control method, and communication method
US8274926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2009 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Jul 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a wireless communication system according to the present invention: a control device and a communication terminal communicate in an active period. The control device: generates a first beacon packet including one or more candidate channels; transmits the first beacon packet at the beginning of the active period; determines whether or not a use channel is to be changed based on a communication state, and generates a second beacon packet including information of a determination result; transmits the second beacon packet at the end of the active period; and, when it is determined that the use channel is to be changed, changes the use channel after the active period ends and before a next active period starts. The communication terminal: receives the first and second beacon packets; and, based on the second beacon packet, changes the use channel after the active period ends and before a next active period starts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.