Multicast packet reception reliability over Wi-Fi
US9641987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/189
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To ensure that multicasts from access points sent in response to periodic beacons reach a variety of listening clients that may have longer sleep intervals than an interval between beacons, this disclosure describes systems, methods, and apparatus for multicasting bursts of frames where a burst number is selected so as to be equal to or greater than a range of common sleep intervals. Further, where multicast frames are re-multicast according to known protocols, the repeated bursts can be offset from the re-multicast start time suggested by the protocol, in order to increase a likelihood that clients with especially long sleep intervals receive the multicast frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.