Method and system for mobile station handoff
US7693521B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/302
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile station is associated with a first wireless coverage area that has a first pilot signal. A second wireless coverage area that has a second pilot signal is in the mobile station's neighbor list. The mobile station measures E1, the energy per chip of the first pilot signal, and I1, the total received power at the first pilot's frequency. The mobile station also measures E2, the energy per chip of the second pilot signal, and I2, the total received power at the second pilot's frequency. If E2 exceeds E1 by at least a first predetermined amount and E2/I2 exceeds E1/I1 by at least a second predetermined amount, then a handoff of the mobile station from the first wireless coverage area to the second wireless coverage area is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.