TERMINAL, BASE STATION, AND COMMUNICATION METHOD

To provide a terminal, a base station, and a communication method that appropriately set uplink transmission timing in NTN, which uses a non-terrestrial network such as a satellite.SOLUTION: In a wireless communication system, a base station and a terminal include a control unit that determines whet...

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Bibliographische Detailangaben
Hauptverfasser: KUMAGAI SHINYA, NAGATA SATOSHI, KISHIYAMA YOSHIHISA, SOTOZONO YUKI, YOSHIOKA SHOHEI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a terminal, a base station, and a communication method that appropriately set uplink transmission timing in NTN, which uses a non-terrestrial network such as a satellite.SOLUTION: In a wireless communication system, a base station and a terminal include a control unit that determines whether a cell targeted for initial access satisfies a condition, and a communication unit applies different uplink transmission timing from that of the cell that does not satisfy the condition and performs initial access in the cell that satisfies the condition when the cell satisfies the condition.SELECTED DRAWING: Figure 6 【課題】衛星等の非地上型ネットワークを使用したNTNにおいて、上りリンク送信のタイミングを適切に設定する端末、基地局及び通信方法を提供する。【解決手段】無線通信システムにおいて、基地局及び端末は、イニシャルアクセスの対象とするセルが条件を満たすか否かを判定する制御部と、セルが条件を満たす場合、条件を満たさないセルと異なる上りリンク送信タイミングを適用して、条件を満たすセルにおいてイニシャルアクセスを実行する通信部と、を有する。【選択図】図6