Method and system for data rate based vertical handoff
US7738427B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2009 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | May 6, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/1443
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for using data rate as a basis to allow or deny handoff from a communication system operating under a first air interface protocol (first protocol system) to a communication system operating under a second air interface protocol (second protocol system). A base station detects that a hybrid terminal has received a threshold low forward link data rate under the first protocol for a threshold time period, and the base station responsively evaluates the second protocol system to determine if the second protocol system has sufficient resources to provide at least as good a data rate as the threshold data rate. If the base station thereby determines that the second protocol system is a good alternative, then the base station will allow a handoff to occur when the terminal seeks to handoff to the second protocol. Otherwise, the base station will not allow the handoff to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.