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Measurement and data acquisition get the most accurate indicator, in mobile communication network. Channel occupancy for each cell shows the proportion of current traffic. In addition, call duration is another important target, which more precise estimate the users' usage situation in heterogeneous networks. A Flexible Bandwidth Allocation Scheme (FBS) using specified duration based data acquisition improves the Quality of Services (QoS) in heterogeneous networks. The FBS reduces the weight Call Loss Probability (CLP) and improves performance in resource allocation and wireless channel utilization. Simulation results demonstrate the effectiveness of the scheme.
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