Radio device having fewer route disconnections and switchings by using control packets to maintain radio links
US7890112B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 4, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | May 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The route maintenance unit outputs a period setting request to the period setting unit when the communication unit normally receives a Hello packet for the first time. The period setting unit sets a link connection confirmation period in response to the period setting request and outputs the set period to the route maintenance unit. The route maintenance unit maintains a radio link between the radio device in which the route maintenance unit is provided and an adjacent device upon receiving a data packet other than a Hello packet from the adjacent radio device even if a Hello packet is not received in the link connection confirmation period. Consequently, route disconnection or switching occurs less often.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.