Predictive caching and tunneling for time-sensitive data delivery to roaming client devices
US9094223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2014 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for delivering data to a wireless client device in a wireless network via a plurality of access points as the wireless client device roams from one access point to another. A wireless client device receives data via a first wireless access point in the wireless network. An impending roam of a wireless client device is detected. A set of one or more candidate wireless access points other than the first wireless access point is determined to which the wireless client device may potentially roam. The one or more wireless access points in the set are assigned to a multicast group, and the traffic is sent to the multicast group. A message containing a synchronized context enables a new wireless access point to send data to the wireless client device from a point where the first wireless access point stopped sending data to the wireless client device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.