METHOD AND DEVICE FOR DETERMINING BACK-OFF TIME

• Main Authors: SHIMIZU MASAZUMI, IWAI TAKANORI
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To provide a method and device contributing to determination of a back-off time that is adapted to traffic burst in future.SOLUTION: A control device (mobile management node) acquires predicted signal distribution indicating distribution of the number of control signals to be generated in future as functions of a time (401). The control device further determines a back-off time that is charged to a radio terminal to be backed off in such a manner that future transmission timing of a control signal by the radio terminal does not overlap a period (D1) in which the number of control signals to be generated per unit time exceeds a reference value (N1) in the predicted signal distribution (402). Moreover, the control device repeats processing (403), acquires the predicted signal distribution to be updated successively and determines the back-off time on the basis of the acquired predicted signal distribution.SELECTED DRAWING: Figure 4 【課題】将来のトラフィックバーストに適応したバックオフ時間の決定に寄与する方法及び装置を提供する。【解決手段】制御装置（移動管理ノード）は、時間の関数としての将来の制御信号の発生数の分布を示す予測信号分布を取得する４０１。制御装置は、さらに、バックオフされる無線端末による制御信号の将来的な送信タイミングが予測信号分布において単位時間当たりの前記発生数が基準値（Ｎ１）を超えている期間（Ｄ１）と重ならないように、無線端末に課されるバックオフ時間を決定する４０２。さらに、処理を繰り返し４０３、順次更新される予測信号分布を取得し、それに基づいてバックオフ時間を決定する。【選択図】図４