Apparatus and method for allocating subchannels adaptively according to frequency reuse rates in an orthogonal frequency division multiple access system
US7423991B2 · kind B2 · utility
68Cited by
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16Claims
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Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Jun 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/29
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for adaptively allocating subchannels according to frequency reuse rates in an OFDMA system are provided. To allocate one or more subchannels to one or more MSs, information related to an optimum FRF and a modulation scheme is received from the plurality of MSs, the number of subchannels required for each FRF is calculated according to the received information, subchannels are allocated to the BS for each FRF, based on the calculated subchannel numbers from the BS and neighboring BSs, and the allocated subchannels are allocated to the MSs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.