Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals
スポンサーリンク
概要
- 論文の詳細を見る
Hybrid automatic repeat request (HARQ) is employed for the Evolved Universal Terrestrial Radio Access (E-UTRA) downlink. The base station not only decodes the ACK/NACK signals from the user equipment (UE), but also detects a termination of the transmission (DTX) of the ACK/NACK signals caused by the mis-detection of the downlink control information (DCI) at the UE side. Since ACK/NACK signals from UEs are multiplexed by CDMA, there are sometimes severe inter-code interference (ICI) effects, which significantly degrade the performance of ACK/NACK signals. In order to mitigate such ICI effects, in [1],[2], we proposed a novel phase rotation scheme on the constellations of the uplink ACK/NACK signals, and confirmed the effects on the ACK/NACK bit error rate performance; however, the previous paper did not analyze the effects of the phase rotation on the DTX detection performance. Hence, in this paper, we further analyze the effects of the phase rotation for the ACK/NACK signals in conjunction with a new DTX detection scheme which utilizes equalizer outputs, and investigate the performance of the proposed scheme by means of computer simulations.
- 2011-01-01
著者
-
平松 勝彦
松下通信工業(株) ワイヤレスソリューション研究所
-
平松 勝彦
松下電器産業株式会社
-
IMAMURA Daichi
Panasonic Corporation
-
HIRAMATSU Katsuhiko
Next-Generation Mobile Communications Development Center, Tokyo R&D Center, Panasonic Corporation
-
Nakao Seigo
Next-generation Mobile Communications Development Center Tokyo R&d Center Panasonic Corporation
-
Takata Tomohumi
Panasonic Mobile Communications R&d Lab. Co. Ltd.
-
Imamura Daichi
Next-generation Mobile Communications Development Center Tokyo R&d Center Panasonic Corporation
-
Hiramatsu K
Next-generation Mobile Communications Development Center Tokyo R&d Center Panasonic Corporation
-
Hiramatsu Katsuhiko
Next-Generation Mobile Communications Development Center, Tokyo R&D Center, Panasonic Corporation
-
平松 勝彦
パナソニック(株)R&D本部事業開発推進室
関連論文
- Evolved UTRAにおける上り応答信号有無の検出精度向上に関する検討(ブロードバンド無線アクセス技術,信号処理,無線通信一般)
- Evolved UTRAにおける上り応答信号有無の検出精度向上に関する検討(ブロードバンド無線アクセス技術,信号処理,無線通信一般)
- Pilot Signal Generation Scheme Using Frequency-Dependent Cyclic Shift ZC Sequence for Inter-Cell Interference Mitigation
- Evolved UTRA下りMIMOに向けた品質報告用リソース制御方法
- IMT-2000TDDモード実験装置の伝送特性(移動通信ワークショップ)
- IMT-2000TDDモード実験装置の伝送特性
- B-5-38 IMT-2000 TDDシステムのチャネル割当てに関する一検討
- IMT-2000 CDMA TDD方式の概要 (特集 次世代移動通信(IMT-2000))
- BP-2-2 LTE-Advancedにおける無線アクセス技術(BP-2.IMT-Advancedのための無線アクセス技術,ソサイエティ企画)
- BP-2-5 Evolved UTRA and UTRANにおける基地局・移動局構成の特徴とサービス展望(BP-2. 第3世代移動通信の長期発展システム : Evolved UTRA and UTRAN,パネルセッション,ソサイエティ企画)