Method, equipment and system for selecting service cell

Abstract

The invention discloses a method, a piece of equipment and a system for selecting a service cell and belongs to the field of communication. The method comprises the following steps: strong-interference terminals of one or more corresponding micro base stations among terminals served by a macro base station are determined, wherein the one or more micro base stations are arranged in a macro cell served by the macro base station; and uplink communication of the determined strong-interference terminals is switched to micro cells served by the corresponding micro base stations so as to take the micro cells served by the corresponding micro base stations as uplink service cells of the strong-interference terminals. The strong-interference terminals of the corresponding micro base stations are determined among the terminals served by the macro base station, and the micro cells served by the micro base stations are taken as the uplink service cells of the terminals, which can reduce the transmission power and power consumption of the terminals; and meanwhile, the interference to the micro base station is reduced, and the service performance of the micro base station is improved. In addition, after the terminals are switched to the micro cells, the macro cell can allocate more time-frequency resources to other terminals in the service range, thus improving the service performance of the macro cell.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, equipment and system for selecting a serving cell. Background technique [0002] In a wireless communication system, a heterogeneous network structure is usually adopted. For the macro cell (macro cell) served by a macro base station with a higher transmission power (for example, 46dBm) in a heterogeneous network structure, there are also one or more micro base stations with a lower transmission power (for example, 30dBm). The area covered is called a pico cell. For a terminal in a macro cell, which cell served by the base station is selected as the uplink and downlink serving cell of the terminal will affect the overall service quality of the network. [0003] In the prior art, when selecting a downlink serving cell for a terminal, the terminal usually selects a cell with a relatively large downlink RSRP (Reference Signal Reception Power, reference signal received p...

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Problems solved by technology

[0005] If the terminal in the macro cell is located at the edge of the micro cell, and the distance between the terminal and the macro base station is greater than the distance between the terminal and the micro base station, then when the terminal performs uplink communication with the macro base station, for the micro base station, the transmission of the terminal The power is relatively large, so it will affect the micro base station, degrade the system performance of the micro cell, and reduce the overall service quality of the network

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