Method of selecting same group of access base station cluster for plurality of mobile stations

Abstract

The invention discloses a method of selecting the same group of access base station cluster for a plurality of mobile stations. The method comprises a parameter setting step: setting a sparseness parameter of a upper limit value of the number of base stations in a base station cluster, an emission power upper limit value of each of the plurality of mobile stations, a transmission channel vector between each of the plurality of mobile stations and a selectable base station, and a service quality upper limit value and a service quality lower limit value of each of the plurality of mobile stations; an updating step: according to the parameter values set in the parameter setting step, carrying out multiple rounds of updating on a virtual downlink beam-forming matrix and a virtual noise power set of the plurality of mobile stations until the difference of the virtual noise power sets obtained by the closest two rounds of updating is smaller than a preset first threshold; and a selecting step: accessing the mobile stations to the base station cluster indicated by the virtual downlink beam-forming matrix obtained in the latest round of updating.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for selecting the same group of access base station clusters for multiple mobile stations. Background technique [0002] In a mobile communication network, a mobile station can access multiple base stations at the same time, that is, multiple base stations provide services for a mobile station at the same time. These base stations that simultaneously provide services for a mobile station form a base station cluster. [0003] When the mobile station needs to access the base station, it needs to decide through a certain method to access the base station cluster composed of which base stations. The Chinese patent application with application number 201410547339.3 and publication number 104301968A discloses a method for selecting access base station clusters for mobile stations. The main technical problem that the method can solve is to select different access base stat...

AI Technical Summary

Problems solved by technology

[0004] The main problems in the above-mentioned existing method are: firstly, in the actual situation, the transmission power of the mobile station cannot be fixed; secondly, this method does not consider the fairness of service obtained between the mobile stations, and the result of the processing may be some Mobile stations have better service quality, while some mobile stations have poor service quality

In addition, each mobile station independently selects the base station cluster to access, which may eventually cause all base stations to be in working state, increasing the complexity of system management

When the number of base stations is large, a large amount of energy needs to be consumed to maintain the basic expenses of these base stations

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