US Patent No: 8,175,035
Number of patents in Portfolio can not be more than 2000
Dynamic fractional frequency reuse in OFDMA networks
Stats
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May 8, 2012
Issued date -
Oct 31, 2008
filing date -
12/263,236
serial no -
In Force
status
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Abstract
A method allocates resources in an orthogonal frequency-division multiple access (OFDMA) network including a set of base stations (BSs), and a set of mobile stations (MSs) for each BS. Each cell includes a center and edge zone. A node weighted constraint graph is constructed for the network. Maximal independent sets in the graph are searched as sub-channels are allocated to the MSs in edge zones. Remaining bandwidth is allocated to the MSs in the center zones. Power is assigned to the sub-channels so that inter-cell interference is minimized and traffic load is maximized.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 2010/0208,687 METHOD OF PERFORMING UPLINK SCHEDULING | 1 | 2008 | |
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| 2010/0061,469 Graph-Based Method for Dynamic Fractional Frequency Reuse | 3 | 2008 | |
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| 8,095,134 Method and apparatus for handover measurement | 1 | 2007 | |
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| 2007/0177,501 Signaling Requirements to Support Interference Coordination in OFDMA Based Systems | 11 | 2007 | |
Patent Citation Ranking
Maintenance Fees
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