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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article propose des schémas de multiplexage efficaces basés sur une porteuse unique (SC) pour les signaux de contrôle de couche 1 (L1)/couche 2 (L2) dans l'accès radio SC-FDMA à l'aide de l'OFDM DFT-Spread dans la liaison montante UTRA évoluée. Les signaux de commande L1/L2 sont nécessaires pour les techniques d'accès aux paquets clés telles que la planification de liaison descendante, l'adaptation de liaison, la demande de répétition automatique hybride (ARQ) avec combinaison logicielle, et pour les signaux de commande de rétroaction de liaison montante. Nous proposons d'abord un schéma de multiplexage basé sur SC pour les signaux de contrôle L1/L2 dans un canal de données partagé pour un ensemble d'équipements utilisateur (UE) qui transmettent à la fois un canal de données partagé en liaison montante et des signaux de contrôle L1/L2 dans la même sous-trame. Nous proposons également un schéma de multiplexage pour les signaux de commande L1/L2 sans transmission de données en liaison montante qui tire parti du saut de fréquence (FH) intra-sous-trame en utilisant plusieurs blocs de ressources temps-fréquence (RB) exclusivement attribués pour obtenir un gain de diversité de fréquence. En outre, nous proposons un schéma de multiplexage orthogonal basé sur CDMA utilisant des décalages cycliques d'une séquence d'autocorrélation nulle à amplitude constante (CAZAC) pour les signaux de commande L1/L2 provenant de différents UE au sein du même RB temps-fréquence à bande étroite. Les résultats de simulation informatique montrent que le schéma de multiplexage basé sur SC proposé pour les signaux de commande L1/L2 au sein du canal de données partagé atteint un débit utilisateur plus élevé qu'un schéma de multiplexage basé sur plusieurs porteuses. Les résultats montrent également que le schéma de multiplexage proposé pour les signaux de commande L1/L2 qui tire parti du FH intra-sous-trame pour l'UE sans transmission de données en liaison montante permet d'obtenir une réception de haute qualité grâce à un gain de diversité de fréquence important. De plus, nous montrons que le multiplexage CDMA orthogonal basé sur le décalage cyclique proposé est efficace dans le multiplexage de plusieurs signaux de commande L1/L2 provenant de différents UE au sein du même RB.
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Teruo KAWAMURA, Yoshihisa KISHIYAMA, Kenichi HIGUCHI, Mamoru SAWAHASHI, "Single-Carrier Based Multiplexing of Layer 1/Layer 2 Control Signals in Evolved UTRA Uplink Using DFT-Spread OFDM" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1695-1704, May 2009, doi: 10.1587/transcom.E92.B.1695.
Abstract: This paper proposes efficient single-carrier (SC) based multiplexing schemes for Layer 1 (L1)/Layer 2 (L2) control signals in SC-FDMA radio access using DFT-Spread OFDM in the Evolved UTRA uplink. L1/L2 control signals are necessary for key packet access techniques such as downlink scheduling, link adaptation, hybrid automatic repeat request (ARQ) with soft combining, and for uplink feedback control signals. We first propose a SC-based multiplexing scheme for L1/L2 control signals within a shared data channel for a set of user equipment (UE) that transmits both an uplink shared data channel and L1/L2 control signals within the same subframe. We also propose a multiplexing scheme for L1/L2 control signals without uplink data transmission that takes advantage of intra-subframe frequency hopping (FH) using multiple exclusively-assigned time-frequency resource blocks (RBs) to obtain a frequency diversity gain. Furthermore, we propose an orthogonal CDMA-based multiplexing scheme using cyclic shifts of a constant amplitude zero auto-correlation (CAZAC) sequence for L1/L2 control signals from different UEs within the same narrowband time-frequency RB. Computer simulation results show that the proposed SC-based multiplexing scheme for the L1/L2 control signals within the shared data channel achieves a higher user throughput than a multicarrier-based multiplexing scheme. The results also show that the proposed multiplexing scheme for the L1/L2 control signals that takes advantage of the intra-subframe FH for the UE without uplink data transmission achieves high quality reception through large frequency diversity gain. Furthermore, we show that the proposed cyclic-shift based orthogonal CDMA multiplexing is effective in the multiplexing of multiple L1/L2 control signals from different UEs within the same RB.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1695/_p
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@ARTICLE{e92-b_5_1695,
author={Teruo KAWAMURA, Yoshihisa KISHIYAMA, Kenichi HIGUCHI, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Single-Carrier Based Multiplexing of Layer 1/Layer 2 Control Signals in Evolved UTRA Uplink Using DFT-Spread OFDM},
year={2009},
volume={E92-B},
number={5},
pages={1695-1704},
abstract={This paper proposes efficient single-carrier (SC) based multiplexing schemes for Layer 1 (L1)/Layer 2 (L2) control signals in SC-FDMA radio access using DFT-Spread OFDM in the Evolved UTRA uplink. L1/L2 control signals are necessary for key packet access techniques such as downlink scheduling, link adaptation, hybrid automatic repeat request (ARQ) with soft combining, and for uplink feedback control signals. We first propose a SC-based multiplexing scheme for L1/L2 control signals within a shared data channel for a set of user equipment (UE) that transmits both an uplink shared data channel and L1/L2 control signals within the same subframe. We also propose a multiplexing scheme for L1/L2 control signals without uplink data transmission that takes advantage of intra-subframe frequency hopping (FH) using multiple exclusively-assigned time-frequency resource blocks (RBs) to obtain a frequency diversity gain. Furthermore, we propose an orthogonal CDMA-based multiplexing scheme using cyclic shifts of a constant amplitude zero auto-correlation (CAZAC) sequence for L1/L2 control signals from different UEs within the same narrowband time-frequency RB. Computer simulation results show that the proposed SC-based multiplexing scheme for the L1/L2 control signals within the shared data channel achieves a higher user throughput than a multicarrier-based multiplexing scheme. The results also show that the proposed multiplexing scheme for the L1/L2 control signals that takes advantage of the intra-subframe FH for the UE without uplink data transmission achieves high quality reception through large frequency diversity gain. Furthermore, we show that the proposed cyclic-shift based orthogonal CDMA multiplexing is effective in the multiplexing of multiple L1/L2 control signals from different UEs within the same RB.},
keywords={},
doi={10.1587/transcom.E92.B.1695},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Single-Carrier Based Multiplexing of Layer 1/Layer 2 Control Signals in Evolved UTRA Uplink Using DFT-Spread OFDM
T2 - IEICE TRANSACTIONS on Communications
SP - 1695
EP - 1704
AU - Teruo KAWAMURA
AU - Yoshihisa KISHIYAMA
AU - Kenichi HIGUCHI
AU - Mamoru SAWAHASHI
PY - 2009
DO - 10.1587/transcom.E92.B.1695
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - This paper proposes efficient single-carrier (SC) based multiplexing schemes for Layer 1 (L1)/Layer 2 (L2) control signals in SC-FDMA radio access using DFT-Spread OFDM in the Evolved UTRA uplink. L1/L2 control signals are necessary for key packet access techniques such as downlink scheduling, link adaptation, hybrid automatic repeat request (ARQ) with soft combining, and for uplink feedback control signals. We first propose a SC-based multiplexing scheme for L1/L2 control signals within a shared data channel for a set of user equipment (UE) that transmits both an uplink shared data channel and L1/L2 control signals within the same subframe. We also propose a multiplexing scheme for L1/L2 control signals without uplink data transmission that takes advantage of intra-subframe frequency hopping (FH) using multiple exclusively-assigned time-frequency resource blocks (RBs) to obtain a frequency diversity gain. Furthermore, we propose an orthogonal CDMA-based multiplexing scheme using cyclic shifts of a constant amplitude zero auto-correlation (CAZAC) sequence for L1/L2 control signals from different UEs within the same narrowband time-frequency RB. Computer simulation results show that the proposed SC-based multiplexing scheme for the L1/L2 control signals within the shared data channel achieves a higher user throughput than a multicarrier-based multiplexing scheme. The results also show that the proposed multiplexing scheme for the L1/L2 control signals that takes advantage of the intra-subframe FH for the UE without uplink data transmission achieves high quality reception through large frequency diversity gain. Furthermore, we show that the proposed cyclic-shift based orthogonal CDMA multiplexing is effective in the multiplexing of multiple L1/L2 control signals from different UEs within the same RB.
ER -