User group-based adaptive soft frequency reuse method to mitigate downlink interference for wireless cellular networks
US8078185B2 · kind B2 · utility
20Cited by
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19Claims
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Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A novel soft fractional frequency reuse (FFR) technique is disclosed. The novel FFR technique includes reuse partition and power restriction, dynamic user grouping, channel quality indicator feedback based on reuse, and a user group-based interference aware scheduler. The FFR technique reduces co-channel interference for cell edge users.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.