Method and system for reducing pilot pollution by systematically adjusting sector power allocations
US7437176B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Nov 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/343
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system are disclosed for reducing pilot pollution in a wireless communication system by systematically (i) identifying areas of sector overlap and (ii) for each area, adjusting power allocation in one or more of the overlapping sectors so as to create a dominant sector and to reduce the total noise from other sectors. A preferred embodiment of the invention involves collecting RF performance data, filtering the data to focus on areas having threshold low forward link data rate, further filtering the data to focus on areas in which the low forward link data rate is likely the result of pilot pollution, selecting a geographic region in which to make a sector power adjustment, and making a sector power adjustment in the selected region in an effort to reduce pilot pollution and increase forward link data rate. The invention is particularly advantageous in a hybrid EV-DO/1xRTT system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.