Node apparatus and communication method
US9450830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A node apparatus includes a TTL memory configured to store a TTL value for a first node apparatus in the cluster; a receiving unit configured to receive a first Hello packet including a first sequence number and a second Hello packet including a second sequence number that is incremented when the node apparatus transmits a Hello packet; a sequence number judging unit configured to judge whether a first sequence number and a second sequence number match each other; a TTL decrementing unit configured to perform a process to decrement the TTL value stored in the TTL memory, when the first sequence number and the second sequence number are identical according to a judgment; and a cluster information updating unit configured to separate the first node apparatus from the cluster, when the TTL value for the first node apparatus becomes equal to or smaller than a prescribed value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.