Distributed uplink power control method based on user dominance in heterogeneous network

The invention provides a distributed uplink power control method based on user dominance in a heterogeneous network. The distributed uplink power control method is characterized in that firstly, according to a signal-to-leakage-and-noise ratio (SLNR) measured by users in a macro cell, uplink users in the macro cell are divided into a center user group and a margin user group, and all micro cell users covered by the macro cell are not grouped; secondly, all the micro cell users and the center user group in the macro cell share a system center user frequency spectrum, and the margin user group in the macro cell occupies a special frequency spectrum for margin users; lastly, all the micro cell users and center users in the macro cell adopt the distributed uplink power control method dominated by the users, and all the margin users in the macro cell conduct uplink transmission at maximum transmission power. According to the distributed uplink power control method, coverage areas and interference conditions of cells where different users are located in the network are fully utilized, proper spectrum resource reuse schemes and power control strategies are selected, therefore, frequency reuse is guaranteed, and the overall transmission performance of all the uplink users in the heterogeneous network is improved effectively at the same time.