Content discovery and transfer between mobile communications nodes
US8103718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Apr 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Content discovery and content transfer between mobile communications nodes is often required, for example, to synchronize maps, traffic hot spot information and the like for vehicle mounted satellite navigation devices, pedestrian hand-held personal digital assistants and other mobile communications nodes. In an embodiment, content discovery processes using data structures designed in particular ways and sent using a single packet enable nodes to identify files to be transferred whilst keeping overheads down. In an embodiment a first and a second data structure are used, each being formed from slightly different information about a subset of the files to be synchronized. In another embodiment a single tree-based data structure is used. A process for transferring data between two mobile communications nodes is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.