Method and system for controlling the rate of vertical handoff operations
US7933602B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Dec 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for controlling the rate at which access terminals hand off from an IS-2000 (e.g., 1xRTT) communication system to an IS-856 (e.g., EVDO) communication system. A base station determines metric indicative of the rate at which hybrid access terminals hand off to the IS-2000 from the IS-856 system, and then based at least in part on the metric, dynamically adjusts a dormancy period that at least one hybrid access terminal must wait before entering a dormant mode in which is looks for service under IS-856. As the rate-metric indicates a higher or lower rate, the system may responsively adjust the dormancy period down or up. The rate at which hybrid access terminals operating under IS-2000 may seek service under IS-856 may thus be tuned to the rate at which they hand of form IS-856 to IS-2000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.