Communication system and concentrator

Abstract

A communication system of the present invention includes a user equipment (UE), and a plurality of cells that perform communication with the UE. The plurality of cells include a macro cell having a relatively-wide-range coverage, and a plurality of small cells having a relatively-narrow-range coverage. The plurality of small cells are connected to a concentrator. The concentrator selects the small cell to which the UE is to be connected, from among a plurality of small cells, based on the flow of at least either one of the received data that each small cell receives from the UE and the transmission data that each small cell transmits to an MME and an S-GW.

1 . A communication system comprising:
 a communication terminal device;   at least one base station device configured to provide a plurality of cells that are configured to perform radio communication with the communication terminal device; and   a concentrator configured to select a plurality of cells to which the communication terminal device is to be connected from among the plurality of cells based on at least one of a downlink data flow of each of the plurality of cells and an unlink data flow of each of the plurality of cells.   
     
     
         2 . The communication system according to  claim 1 , wherein
 the plurality of cells to which the communication terminal device is to be connected are a cell for a control plane and a cell for a user plane, and   the cell for the control plane and the cell for the user plane are different from each other.   
     
     
         3 . The communication system according to  claim 1 , wherein
 the plurality of cells to which the communication terminal device is to be connected are a cell for uplink and a cell for downlink, and   the cell for uplink and the cell for downlink are different from each other.   
     
     
         4 . The communication system according to  claim 3 , wherein the cell for uplink and the cell for downlink belong to a same cell cluster. 
     
     
         5 . A concentrator that is included in a communication system comprising a communication terminal device and at least one base station device configured to provide a plurality of cells that are configured to perform radio communication with the communication terminal device,
 wherein the concentrator is configured to select a plurality of cells to which the communication terminal device is to be connected from among the plurality of cells based on at least one of a downlink data flow of each of the plurality of cells and an uplink data flow of each of the plurality of cells.