COMMUNICATION TERMINAL DEVICE, AND CONTROL METHOD AND PROGRAM THEREOF

• Main Authors: EBISAWA KENICHI, KASANAMI JUN, OGURA SUNAO, OTAKE HIROSHI, ASAKURA KEISUKE, KAWAMURA HIROAKI
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS; WIRELESS COMMUNICATIONS NETWORKS

To effectively use wireless communication resources of a base station to which a communication terminal device can connect while reducing the power consumption of the communication terminal device that moves on a vehicle travel path or around it.SOLUTION: A movable communication terminal device includes: first communication means by a first communication method for wirelessly communicating with a base station in a mobile communication network; detection means for detecting an approaching state between the communication terminal device and a vehicle; and control means for controlling the first communication means so as to shift the wireless communication state with the base station from an idle state to a connection state by the first communication method when the approaching state to the vehicle is detected.SELECTED DRAWING: Figure 1 【課題】車両移動経路又はその周辺を移動する通信端末装置の消費電力の低減を図りつつ、通信端末装置が接続可能な基地局における無線通信リソースの有効利用を図る。【解決手段】移動可能な通信端末装置は、移動通信網の基地局と無線通信するための第１通信方式による第１通信手段と、当該通信端末装置と車両との接近状態を検出する検出手段と、車両との接近状態を検出したとき、基地局との無線通信の状態をアイドル状態から第１通信方式による接続状態に遷移させるように第１通信手段を制御する制御手段と、を備える。【選択図】図１