TERMINAL DEVICE, METHOD, AND INTEGRATED CIRCUIT

To provide a technique (UE-to-UE relay) in which another terminal joins between terminal devices so as to support communication between the terminal devices.SOLUTION: In a communication system, a terminal device that communicates with a second terminal device via a first terminal device includes a r...

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Bibliographische Detailangaben
Hauptverfasser: YAMADA SHOHEI, TSUBOI HIDEKAZU, KONO TAKUMA, INOUE KYOSUKE, MIYAKE TAICHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a technique (UE-to-UE relay) in which another terminal joins between terminal devices so as to support communication between the terminal devices.SOLUTION: In a communication system, a terminal device that communicates with a second terminal device via a first terminal device includes a receiving unit that receives sidelink transmission from the second terminal device to the first terminal device and a processing unit that measures sidelink reference signal received power (SL-RSRP) from the received sidelink transmission. The processing unit determines whether the SL-RSRP is greater than or equal to a threshold value, and notifies an upper layer that the second terminal device is in close proximity when determining that the SL-RSRP is greater than or equal to the threshold value, and does not notify the upper layer that the second terminal device is in close proximity when determining that the SL-RSRP is not greater than or equal to the threshold value.SELECTED DRAWING: Figure 1 【課題】端末装置間に他の端末装置が加わり、端末装置間の通信をサポートする技術(UE-to-UE relay)を提供すること。【解決手段】通信システムにおいて、第1の端末装置を介して第2の端末装置と通信する端末装置は、第2の端末装置から第1の端末装置へのサイドリンク送信を受信する受信部と、受信したサイドリンク送信よりサイドリンク用参照信号受信電力(SL-RSRP: sidelink Reference Signal Received Power)を測定する処理部と、を備える、処理部は、SL-RSRPが閾値以上であるか否かを判断し、SL-RSRPが閾値以上であると判断した場合、第2の端末装置が近接していることを上位レイヤに通知し、SL-RSRPが閾値以上でないと判断した場合、第2の端末装置が近接していることを上位レイヤに通知しない。【選択図】図1