The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
E-UTRA(Evolved Universal Terrestrial Radio Access) 다운링크에는 HARQ(Hybrid automatic Repeat request)가 사용됩니다. 기지국은 단말(UE)로부터의 ACK/NACK 신호를 디코딩할 뿐만 아니라, 하향링크 제어정보(DCI)의 오검출로 인한 ACK/NACK 신호의 전송 종료(DTX)를 검출한다. UE 측에서. UE로부터의 ACK/NACK 신호는 CDMA에 의해 다중화되기 때문에 때때로 심각한 ICI(Inter-Code Interference) 효과가 발생하여 ACK/NACK 신호의 성능이 크게 저하됩니다. 이러한 ICI 영향을 완화하기 위해 [1],[2]에서는 업링크 ACK/NACK 신호 성상도에 대한 새로운 위상 회전 방식을 제안하고 ACK/NACK 비트 오류율 성능에 미치는 영향을 확인했습니다. 그러나 이전 논문에서는 위상 회전이 DTX 감지 성능에 미치는 영향을 분석하지 않았습니다. 따라서 본 논문에서는 등화기 출력을 활용하는 새로운 DTX 검출 방식과 함께 ACK/NACK 신호에 대한 위상 회전 효과를 추가로 분석하고 컴퓨터 시뮬레이션을 통해 제안된 방식의 성능을 조사합니다.
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부
Seigo NAKAO, Tomohumi TAKATA, Daichi IMAMURA, Katsuhiko HIRAMATSU, "Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals" in IEICE TRANSACTIONS on Communications,
vol. E94-B, no. 1, pp. 262-272, January 2011, doi: 10.1587/transcom.E94.B.262.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.262/_p
부
@ARTICLE{e94-b_1_262,
author={Seigo NAKAO, Tomohumi TAKATA, Daichi IMAMURA, Katsuhiko HIRAMATSU, },
journal={IEICE TRANSACTIONS on Communications},
title={Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals},
year={2011},
volume={E94-B},
number={1},
pages={262-272},
abstract={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.},
keywords={},
doi={10.1587/transcom.E94.B.262},
ISSN={1745-1345},
month={January},}
부
TY - JOUR
TI - Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals
T2 - IEICE TRANSACTIONS on Communications
SP - 262
EP - 272
AU - Seigo NAKAO
AU - Tomohumi TAKATA
AU - Daichi IMAMURA
AU - Katsuhiko HIRAMATSU
PY - 2011
DO - 10.1587/transcom.E94.B.262
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2011
AB - 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.
ER -