JP6339125B2 - 移動通信システムでランダムアクセス手続を行う方法及び装置 - Google Patents
移動通信システムでランダムアクセス手続を行う方法及び装置 Download PDFInfo
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Description
・(プリアンブル送信でない他の)逆方向送信の性格:例えば、再送信が可能であるか、ユーザデータに対する送信であるか、制御データに対する送信であるかなど
・連結状態端末がプライマリセルでランダムアクセスを遂行する主要な理由は、SRを送信するためのPUCCH送信リソースのない端末がBSRを送信するためのものという点を考慮すれば、すなわち端末がプライマリセルでランダムアクセスを遂行する可能性が希薄という点を考慮すれば、プライマリセルのプリアンブル送信と他の逆方向送信が同一の時間に行われる可能性も、希薄ということが分かる。
・上記同期獲得手続は、該当セカンダリセルが活性化する毎に要求されることもある。それだけでなく、セカンダリセルを介して逆方向送信を遂行する理由は、端末の逆方向送信速度を高めるためのものである。したがって、端末がセカンダリセルでプリアンブルを送信する時点にすでに他のサービングセルでPUSCHを送信している可能性が高い。
・端末が支援する周波数帯域の組合
・周波数帯域別のMIMO layerの数
・周波数帯域別に集約できるセルの数
・周波数帯域別の最大帯域幅
・ランダムアクセスが発生した理由がPDCCH orderによるものであれば、プリアンブル送信に優先順位を付与
・ランダムアクセスが発生した理由がBSR送信のためのものであり(あるいは、逆方向送信を再開するためのものであり)、他の逆方向送信がPUCCH送信であれば、他の逆方向送信に優先順位を付与
・ランダムアクセスが発生した理由がBSR送信のためのものであり(あるいは、逆方向送信を再開するためのものであり)、他の逆方向送信がPUSCH送信であれば、プリアンブル送信に優先順位を付与
・プリアンブルがPUCCH送信と重なるとき、PUCCH送信がHARQ ACK/NACK送信やCQI送信であれば、PUCCH送信に優先順位を付与
・プリアンブルがPUCCH送信と重なるとき、PUCCH送信がSRS送信やSR送信であれば、プリアンブル送信に優先順位を付与
・プリアンブルがPUSCH送信と重なれば、プリアンブル送信に優先順位を付与
・プリアンブルがPUCCH送信と重なるとき、プリアンブルが最初の送信であれば、PUCCH送信に優先順位を付与
・プリアンブルがPUCCH送信と重なるとき、プリアンブルが最初の送信でなく再送信であれば、プリアンブル送信に優先順位を付与(再送信されるプリアンブルを送信しないか又は送信出力を減らす場合、端末の送信出力制御に悪影響を及ぼすからである。)
・プリアンブルがPUSCH送信と重なれば、プリアンブルの最初の送信/再送信の有無と関係なく、プリアンブル送信に優先順位を付与
・SRSとプリアンブルが同一のセルで遂行されると、プリアンブル送信のみを行う。
・SRSとプリアンブルが他のセルで遂行されると、プリアンブルとSRSを同時に送信する。
125 MME
130 S−GW
135 UE
805 送受信部
810 制御部
815 多重化及び逆多重化部
820 上位階層処理部
825 上位階層処理部
830 制御メッセージ処理部
Claims (6)
- 端末の動作方法において、
プリアンブル送信がアップリンク送信と時間領域においてオーバーラップするかを識別する段階と、
前記プリアンブル送信と前記アップリンク送信が時間領域においてオーバーラップし、前記アップリンク送信がサウンディング基準信号(SRS,sounding reference signal)送信であり、前記プリアンブル送信に対する電力と、前記サウンディング基準信号送信に対する電力の和が前記端末の送信電力を超えると、前記サウンディング基準信号の送信をドロップする段階と、
前記プリアンブル送信と前記アップリンク送信が時間領域においてオーバーラップし、前記アップリンク送信がPUSCH(physical uplink shared channel)送信であり、前記プリアンブル送信に対する電力と、前記PUSCH送信に対する電力の和が前記端末の送信電力を超えると、前記PUSCH送信に対する電力を調整する段階とを含む、方法。 - 前記アップリンク送信に対する電力と、前記プリアンブル送信に対する電力の和が前記端末の送信電力を越えないと、プリアンブルとアップリンクとを送信する、請求項1に記載の方法。
- ランダムアクセス(random access)のためのリソースからプリアンブルを送信する、請求項1に記載の方法。
- 端末において、
データを送信する送信部と、
プリアンブル送信がアップリンク送信とオーバーラップするかを識別し、
前記プリアンブル送信と前記アップリンク送信が時間領域においてオーバーラップし、前記アップリンク送信がサウンディング基準信号(SRS,sounding reference signal)送信であり、前記プリアンブル送信に対する電力と、前記サウンディング基準信号送信に対する電力の和が前記端末の送信電力を超えると、前記サウンディング基準信号の送信をドロップし、
前記プリアンブル送信と前記アップリンク送信が時間領域においてオーバーラップし、前記アップリンク送信がPUSCH(physical uplink shared channel)送信であり、前記プリアンブル送信に対する電力と、前記PUSCH送信に対する電力の和が前記端末の送信電力を超えると、前記PUSCH送信に対する電力を調整するように制御する制御部とを含む、端末。 - 前記アップリンク送信に対する電力と、前記プリアンブル送信に対する電力の和が前記端末の送信電力を越えないと、プリアンブルとアップリンクを送信する、請求項4に記載の端末。
- ランダムアクセス(random access)のためのリソースからプリアンブルを送信する、請求項4に記載の端末。
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US201161431635P | 2011-01-11 | 2011-01-11 | |
US61/431,635 | 2011-01-11 | ||
KR10-2011-0097409 | 2011-09-27 | ||
KR1020110097409A KR101832175B1 (ko) | 2010-10-12 | 2011-09-27 | 캐리어 집적을 위한 이동통신 시스템에서 캐리어 별 최대 송신 전력을 결정하는 방법 및 장치 |
KR10-2012-0001774 | 2012-01-06 | ||
KR1020120001774A KR101971103B1 (ko) | 2011-01-11 | 2012-01-06 | 이동통신 시스템에서 랜덤 액세스 절차를 수행하는 방법 및 장치 |
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JP2013548366A Active JP6109747B2 (ja) | 2011-01-11 | 2012-01-11 | キャリア集約技術を使用した無線通信システムにおけるセカンダリキャリアの活性化及び非活性化方法、並びに装置 |
JP2013549366A Active JP5989006B2 (ja) | 2011-01-11 | 2012-01-11 | 移動通信システムにおける逆方向伝送出力決定方法及び装置 |
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