Multicast support by mobile routers in a mobile ad hoc network
US8724533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Sep 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W40/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a mobile router receives a multicast-supported router advertisement message from an attachment mobile router in a mobile ad hoc network, the multicast-supported router advertisement message specifying an attachment prefix and a multicast-capable identifier. The mobile router attaches to the attachment mobile router in response to the multicast-supported router advertisement message and according to a protocol requiring establishment in the mobile ad hoc network of a tree topology having a single multicast clusterhead, and selects a default attachment address within an address space of the attachment prefix. The mobile router receives a multicast request, from an attached node, for receiving a multicast stream, and the mobile router outputs a neighbor advertisement message with multicast extension, to the attachment router, that specifies that access to the multicast stream is requested via the default attachment address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.