A Method of Selecting the Same Group to Access Base Station Cluster for Multiple Mobile Stations

Abstract

The invention discloses a method for selecting the same group of multiple mobile stations to access a base station cluster, comprising: a parameter setting step: setting a sparseness parameter used to represent the upper limit of the number of base stations in the base station cluster, a plurality of A transmit power upper limit value for each of the mobile stations, a transmission channel vector between each of the plurality of mobile stations and all optional base stations, and a quality of service upper limit value and a quality of service lower limit value for each of the plurality of mobile stations ;Update step: according to the parameter values ​​set in the parameter setting step, the virtual downlink beamforming matrix and the virtual noise power set of multiple mobile stations are updated for multiple rounds, until the virtual noise power set obtained by the latest two rounds of updates is between ; The difference is smaller than the preset first threshold value; and the selection step: accessing the mobile station to the base station cluster indicated by the virtual downlink beamforming matrix obtained from the latest round of update.

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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