Video multicast using relay devices defined by a channel quality parameter hierarchy
US8179848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/77
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Improved distribution of video information in an infrastructure-based wireless network is provided. A wireless channel condition between the video server node and each of the plurality of receiver nodes is determined. Receiver nodes are assigned into one of a first group and a second group using the measured wireless channel conditions, wherein receiver nodes assigned to the first group have, on average, a better measured wireless channel condition than that of receiver nodes assigned to the second group. At least some of the receiver nodes of the first group of nodes are selected to serve as relay nodes. Video information is then transmitted wirelessly from the video server node to the receiver nodes assigned to the first group. Each of the selected relay nodes then transmits at least a part of the video information to the receiver nodes of the second group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.