JP2014507909A - キャリアアグリゲーション技術を使用する時分割無線通信システムでセカンダリキャリアの活性化または非活性化方法及び装置 - Google Patents
キャリアアグリゲーション技術を使用する時分割無線通信システムでセカンダリキャリアの活性化または非活性化方法及び装置 Download PDFInfo
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Abstract
本発明を通じて、端末はSCell活性化及び非活性化時、取る動作を明確に定義して誤動作がない通信ができる。
Description
*上記チャンネル状態情報は当該の端末に基地局がリンク適応(link ad aptation)とスケジューリングができるように役に立つCQI/PMI/RI/PTI などを含み
・CQI (Channel Quality Indicator):チャン ネル品質インディケータ:ビットエラー確率10%を満足する推薦送信フォーマット
・PMI (Precoding Matrix Index):フリーコーディングマトリックスインデックス:closed-loop spatial multiplexingに用いられるインデックス
・RI(Rank Indicator):ランクインディケータ:推薦する送信ランク
・PTI(Precoder Type Indication):フリーコーダータイプインディケータ
-サウンディング基準信号(SRS:Sounding Reference Symbol)送信開始(サウンディング基準信号が設定された場合に限り)
-サウンディング基準信号 (SRS:Sounding Reference Symbol)送信中断
上記のような動作によることによってすべての動作が正しくなるようにする。
*上記チャンネル状態情報は当該の端末に基地局がリンク適応(link ad aptation)とスケジューリングができるように役に立つCQI/PMI/ RI/PTIなどを含み
・CQI (Channel Quality Indicator):チャンネル品質インディケータ:ビットエラー確率10%を満足する推薦送信フォーマット
・PMI (Precoding Matrix Index):フリーコーディングマトリックスインデックス:closed-loop spatial multiplexingに用いられるインデックス
・RI(Rank Indicator):ランクインディケータ:推薦する送信ランク
・PTI(Precoder Type Indication):フリーコーダータイプインディケータ
-サウンディング基準信号(SRS:Sounding Reference Symbol)送信開始(サウンディング基準信号が設定された場合に限り)
-サウンディング基準信号 (SRS:Sounding Reference Symbol)送信中断
135 使用者端末
210、235 無線リンク制御
220、225 物理階層
305 基地局
315 キャリア
330 端末
501 端末
503 基地局
803 多重化装置
803 逆多重化装置
805 上位階層
807 制御メッセージ処理部
809 制御部
811 非活性化処理部
Claims (20)
- キャリアアグリゲーション技術を使用する時分割無線移動通信システムで端末のセカンダリキャリア制御方法であって、
基地局から送信される、セカンダリキャリアの活性化、または非活性化を制御するためのセカンダリキャリア制御メッセージを受信する段階;
前記セカンダリキャリア制御メッセージが特定セカンダリキャリアの活性化を指示する場合、タイマーを駆動する段階;及び
前記タイマー駆動満了後、最初到来するダウンリンクサブフレームで前記特定セカンダリキャリアの順方向を活性化する段階を含むことを特徴とするセカンダリキャリア制御方法。 - 前記タイマー駆動満了後、前記タイマーが駆動される間にスペシャルサブフレームが存在するか否かを確認(identify)する段階;及び
前記スペシャルサブフレームが存在する場合、前記タイマー駆動満了後、最初到来する物理ダウンリンク制御チャンネルがないサブフレーム、または前記スペシャルサブフレームで前記特定セカンダリキャリアの逆方向を活性化する段階をさらに含むことを特徴とする、請求項1に記載のセカンダリキャリア制御方法。 - 前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレーム、または前記最初到来するスペシャルサブフレームの次のサブフレームで前記特定セカンダリキャリアの逆方向を活性化する段階をさらに含むことを特徴とする、請求項2に記載のセカンダリキャリア制御方法。
- 前記セカンダリキャリアの逆方向活性化段階は、
チャンネル状態情報報告遂行、またはサウンディング基準信号送信のうちの少なくとも1つを含むことを特徴とする、請求項3に記載のセカンダリキャリア制御方法。 - 前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレームで第1動作を行う段階;及び
前記タイマー駆動満了後、最初到来するスペシャルサブフレームの次のサブフレームで第2動作を行う段階をさらに含むことを特徴とする、請求項2に記載のセカンダリキャリア制御方法。 - 前記第1動作は、逆方向送信信号送信を含み、
前記第2動作は、物理アップリンク共有チャンネル送信を含むことを特徴とする、請求項5に記載のセカンダリキャリア制御方法。 - 前記セカンダリキャリア制御メッセージが特定セカンダリキャリアの非活性化を指示する場合、前記タイマーを駆動する段階;
前記タイマー駆動満了後、最初到来するダウンリンクサブフレームで前記特定セカンダリキャリアの順方向を非活性化する段階をさらに含むことを特徴とする、請求項1に記載のセカンダリキャリア制御方法。 - 前記タイマー駆動満了後、前記タイマーが駆動される間にスペシャルサブフレームが存在するか否かを確認(identify)する段階;及び
前記スペシャルサブフレームが存在する場合、前記タイマー駆動満了後、最初到来する物理ダウンリンク制御チャンネルがないサブフレーム、または前記スペシャルサブフレームで前記特定セカンダリキャリアの逆方向を非活性化する段階をさらに含むことを特徴とする、請求項7に記載のセカンダリキャリア制御方法。 - 前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレーム、または前記最初到来するスペシャルサブフレームの次のサブフレームで前記特定セカンダリキャリアの逆方向を非活性化する段階をさらに含むことを特徴とする、請求項8に記載のセカンダリキャリア制御方法。
- 前記タイマーは、8個のサブフレームに対応する時間長さを有することを特徴とする、請求項1に記載のセカンダリキャリア制御方法。
- キャリアアグリゲーション技術を使用する時分割無線移動通信システムでセカンダリキャリアを制御する端末であって、
基地局と信号を送受信する送受信部;及び
セカンダリキャリアの活性化または非活性化を制御するためのセカンダリキャリア制御メッセージを基地局から受信して、前記セカンダリキャリア制御メッセージが特定セカンダリキャリアの活性化を指示する場合、タイマーを駆動して、前記タイマー駆動満了後、最初到来するダウンリンクサブフレームで前記特定セカンダリキャリアの順方向を活性化するように制御する制御部を含むことを特徴とする端末。 - 前記制御部は、
前記タイマー駆動満了後、前記タイマーが駆動される間にスペシャルサブフレームが存在するか否かを確認(identify)して、前記スペシャルサブフレームが存在する場合、前記タイマー駆動満了後、最初到来する物理ダウンリンク制御チャンネルがないサブフレーム、または前記スペシャルサブフレームで前記特定セカンダリキャリアの逆方向を活性化するように制御することを特徴とする、請求項11に記載の端末。 - 前記制御部は、
前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレーム、または前記最初到来するスペシャルサブフレームの次のサブフレームで前記特定セカンダリキャリアの逆方向を活性化するように制御することを特徴とする、請求項12に記載の端末。 - 前記セカンダリキャリアの逆方向活性化は、
チャンネル状態情報報告遂行、またはサウンディング基準信号送信のうちの少なくとも1つを含むことを特徴とする、請求項13に記載の端末。 - 前記制御部は、
前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレームで第1動作を行い、
前記タイマー駆動満了後、最初到来するスペシャルサブフレームの次のサブフレームで第2動作を行うように制御することを特徴とする、請求項11に記載の端末。 - 前記第1動作は、逆方向送信信号送信を含み、
前記第2動作は物理アップリンク共有チャンネル送信を含むことを特徴とする、 請求項15に記載の端末。 - 前記制御部は、
前記セカンダリキャリア制御メッセージが特定セカンダリキャリアの非活性化を指示する場合、前記タイマーを駆動して、前記タイマー駆動満了後、最初到来するダウンリンクサブフレームで前記特定セカンダリキャリアの順方向を非活性化するように制御することを特徴とする、請求項11に記載の端末。 - 前記制御部は、
前記タイマー駆動満了後、前記タイマーが駆動される間にスペシャルサブフレームが存在するか否かを確認(identify)して、前記スペシャルサブフレームが存在する場合、前記タイマー駆動満了後、最初到来する物理ダウンリンク制御チャンネルがないサブフレームまたは前記スペシャルサブフレームで前記特定セカンダリキャリアの逆方向を非活性化するように制御することを特徴とする、請求項17に記載の端末。 - 前記制御部は、
前記スペシャルサブフレームが存在しない場合、前記タイマー駆動満了後、最初到来するスペシャルサブフレーム、または前記最初到来するスペシャルサブフレームの次のサブフレームで前記特定セカンダリキャリアの逆方向を非活性化するように制御することを特徴とする、請求項18に記載の端末。 - 前記タイマーは、8個のサブフレームに対応する時間長さを有することを特徴とする、 請求項11に記載の端末。
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