Adaptive subcarrier allocation to a mobile terminal in a multi cell FDM or OFDM network
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United States of America Patent
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Nov 8, 2011
Grant Date -
Jul 19, 2007
app pub date -
Dec 18, 2006
filing date -
Jan 13, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention concerns a method for performing adaptive subcarrier allocation to a mobile terminal (T1-T4) for OFDM or FDM transmission in a multi cell network (CN), whereby transmit powers of base stations (BS1-BS8) are estimated, channel transfer functions are calculated based on measurements in the mobile terminal (T1-T4) of pilots transmitted from base stations (BS1-BS8), the transmit powers are weighted with the channel transfer functions, a signal power and an interference power received in the mobile terminal (T1-T4) are estimated based on said weighted transmit powers, a signal to interference ratio is estimated based on the estimated signal and interference power received in the mobile terminal (T1-T4), and the adaptive subcarrier allocation is based on the signal to interference ratio of the subcarriers experienced by the mobile terminal (T1-T4), a base station (BS1-BS8), a mobile terminal (T1-T4) and a multi cell network (CN) therefor.
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