COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD

To achieve power saving while enhancing responsiveness immediately after data communication.SOLUTION: In a communication system 1, a processing device 20 includes: a transmission time calculation unit 23 that calculates transmission time when a paging signal should be transmitted to a terminal 10 on...

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Bibliographic Details
Main Authors KATSUMATA YUKI, IWASHINA SHIGERU, YAMADA AKIRA
Format Patent
LanguageEnglish
Japanese
Published 09.05.2019
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Summary:To achieve power saving while enhancing responsiveness immediately after data communication.SOLUTION: In a communication system 1, a processing device 20 includes: a transmission time calculation unit 23 that calculates transmission time when a paging signal should be transmitted to a terminal 10 on the basis of paging interval information on the terminal 10 and time when data was received from the terminal 10 held by a terminal information holding unit 21; and a paging transmission unit 24 that transmits the paging signal to the terminal 10 when the transmission time arrives. The terminal 10 includes: a reception time calculation unit 13 that calculates reception time when the paging signal is expected to be received from the processing device 20 on the basis of the paging interval information held by an interval information holding unit 11 and time when the data was transmitted; and a reception control unit 14 that stands by in a state capable of receiving the paging signal at the reception time. The paging interval information held by the terminal information holding unit 21 and interval information holding unit 11 increases the time interval continuously or intermittently as time passes.SELECTED DRAWING: Figure 1 【課題】データ通信が行われた直後の応答性を高めつつ省電力性を達成する。【解決手段】通信システム1において、処理装置20は、端末情報保持部21により保持された、端末10のページング間隔情報及び端末10からデータを受信した時刻に基づき、端末10へページング信号を送信すべき送信時刻を計算する送信時刻計算部23と、該送信時刻になったときに端末10へページング信号を送信するページング送信部24とを備える。端末10は、間隔情報保持部11により保持されたページング間隔情報及びデータを送信した時刻に基づき、処理装置20からページング信号を受信すると想定される受信時刻を計算する受信時刻計算部13と、該受信時刻にページング信号を受信可能な状態で受信待機する受信制御部14とを備える。端末情報保持部21と間隔情報保持部11に保持されたページング間隔情報は、時間の経過とともに連続的に又は断続的に時間間隔が長くなる。【選択図】図1
Bibliography:Application Number: JP20170197786