MOBILE ASSISTED ADAPTIVE FFR
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United States of America Patent
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Issued Date -
Mar 31, 2011
app pub date -
Jul 3, 2009
filing date -
Jul 3, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a method of fractional frequency reuse in a communication network, a frequency band is divided into a plurality of sub-bands according to a Fractional Frequency Reuse (FFR) scheme to define a FFR allocation of the band for a plurality of bases stations, each of the base stations being associated with a respective region. At a first base station of the plurality of base stations, the first base station associated with a first region, communication with a mobile terminal in the first region is established on one of the plurality of sub-bands according to the FFR allocation. A second base station of the plurality of base stations, the second base station associated with a second region, transmits on the one of the plurality of sub-bands according to the FFR allocation; receives an indication of a coverage problem detected at the mobile terminal due to interference from the second base station on the one of the plurality of sub-bands; and in response to the receiving the indication, decreases a transmit power level for the one of the plurality of sub-bands in the second region.
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