DEVICE FOR TRANSFERRING DATA, METHOD FOR TRANSFERRING DATA AND SYSTEM FOR TRANSFERRING DATA USING SERVICE LEVEL AGREEMENT INFORMATION

摘要

PURPOSE: A data transfer device using SLA information, and a method and system thereof are provided to direct a base station to transfer data to a plurality of terminals based on a weighting and average power, thereby transferring data efficiently. CONSTITUTION: A calculation unit calculates a first metric by using each efficiency weighting of a plurality terminals. The calculation unit calculates a second metric by using the average power of each of a plurality of the terminals. A selection unit selects at least one of a plurality of the terminals based on the first and second metrics. The control unit transmits data to the selected terminal. The control unit updates a virtual queue of each of a plurality of the terminals. [Reference numerals] (AA) Terminal 1; (BB) Average electricity use: 10mW; (CC) Efficiency weighted value: 1; (DD) Terminal 2; (EE) Average electricity use: 7mW; (FF) Efficiency weighted value: 1; (GG) Terminal 3; (HH) Average electricity use: 2mW; (II) Efficiency weighted value: 2; (JJ) Base station 1; (KK) Device information delivery; (LL) Terminal 4; (MM) Average electricity use: 5mW; (NN) Efficiency weighted value: 3; (OO) TARGET SLA delivery; (PP) SLA management device 1; (QQ) Base station 2; (RR) Base station 3; (SS) Base station 4