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
pandangan teks lengkap
112
Kertas kerja ini melaporkan penilaian dan hasil simulasi bagi ciri tak linear Sistem Antena Aktif (AAS) 4.65GHz untuk sistem komunikasi mudah alih 5G. Elemen antena terdiri daripada antena tampalan kongsi polarisasi dwi ±45°, dan dilengkapi dengan jumlah 64 elemen dengan konfigurasi polarisasi mendatar 8 × menegak 4 × 2. Litar transceiver 32 elemen telah dipasang pada bahagian belakang papan litar bercetak antena. Dengan konfigurasi litar di atas, kaedah pembentuk pancaran digital penuh telah diterima pakai yang boleh merealisasikan kecekapan penggunaan frekuensi tinggi dengan menggunakan elemen besar-besaran Sub6GHz-jalur AAS, dan prestasi pemultipleksan spatial yang cemerlang oleh Massive MIMO telah diteruskan. Walau bagaimanapun, didapati bahawa Pautan Bawah (DL) SINR (Isyarat kepada Gangguan dan Nisbah Bunyi) ke setiap terminal merosot kerana sinaran herot tak linear kerana kuasa keluaran penghantaran dinaikkan dalam arah terkadar maksimum. Oleh itu, telah disahkan bahawa prestasi pemultipleksan spatial dalam kawasan kuasa keluaran tinggi telah dipertingkatkan dengan ketara dengan memasang DPD. Untuk menjelaskan kesan sinaran herot tak linear pada prestasi pemultipleksan spatial, corak sinaran diukur menggunakan isyarat OFDM (jarak subcarrier 60kHz × 1500 subcarrier dalam lebar jalur 90MHz) dalam ruang anechoic. Dan dengan analisis simulasi untuk pengaruh herotan tak linear pada ciri nol, ketepatan nol yang dijana dalam setiap arah terminal pengguna tidak bergantung pada tahap ketaklinearan, tetapi dipengaruhi oleh amplitud sisa dan variasi fasa antara semua pemancar dan penerima selepas penentukuran (CAL). Oleh itu, telah dijelaskan bahawa konfigurasi pampasan berganda DPD dan CAL berketepatan tinggi adalah berkesan untuk mencapai prestasi MIMO Massive yang sangat baik. Kertas kerja ini adalah berdasarkan IEICE Transaksi Jepun mengenai Komunikasi (Jilid J102-B, No.11, ms.816-824, Nov. 2019).
Takuji MOCHIZUKI
NEC
5G, AAS, MIMO besar-besaran, DPD, CAL
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Salinan
Takuji MOCHIZUKI, "Specificity Analysis for Nonlinear Distorted Radiation Using 4.65GHz Band Massive Element Active Antenna System for 5G and Influence on Spatial Multiplexing Performance" in IEICE TRANSACTIONS on Electronics,
vol. E104-C, no. 10, pp. 543-551, October 2021, doi: 10.1587/transele.2021MMI0007.
Abstract: This paper reports the evaluation and simulated results of the nonlinear characteristics of the 4.65GHz Active Antenna System (AAS) for 5G mobile communication systems. The antenna element is composed of ±45° dual polarization shared patch antenna, and is equipped with total 64 elements with horizontal 8 × vertical 4 × 2 polarization configuration. A 32-element transceiver circuit was mounted on the back side of the antenna printed circuit board. With the above circuit configuration, a full digital beamforming method has been adopted that can realize high frequency utilization efficiency by using the Sub6GHz-band massive element AAS, and excellent spatial multiplexing performance by Massive MIMO has been pursued. However, it was found that the Downlink (DL) SINR (Signal to Interference and Noise Ratio) to each terminal deteriorated because of the nonlinear distorted radiation as the transmission output power was increased in the maximum rated direction. Therefore, it has been confirmed that the spatial multiplexing performance in the high output power region is significantly improved by installing DPD. In order to clarify the affection of nonlinear distorted radiation on spatial multiplexing performance, the radiation patterns were measured using OFDM signal (subcarrier spacing 60kHz × 1500 subcarriers in 90MHz bandwidth) in an anechoic chamber. And by the simulated analysis for the affection of nonlinear distortion on null characteristic, the accuracy of nulls generated in each user terminal direction does not depend on the degree of nonlinearity, but is affected by the residual amplitude and phase variation among all transmitters and receivers after calibration (CAL). Therefore, it was clarified that the double compensation configuration of DPD and high-precision CAL is effective for achieving excellent Massive MIMO performance. This paper is based on the IEICE Japanese Transactions on Communications (Vol.J102-B, No.11, pp.816-824, Nov. 2019).
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021MMI0007/_p
Salinan
@ARTICLE{e104-c_10_543,
author={Takuji MOCHIZUKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Specificity Analysis for Nonlinear Distorted Radiation Using 4.65GHz Band Massive Element Active Antenna System for 5G and Influence on Spatial Multiplexing Performance},
year={2021},
volume={E104-C},
number={10},
pages={543-551},
abstract={This paper reports the evaluation and simulated results of the nonlinear characteristics of the 4.65GHz Active Antenna System (AAS) for 5G mobile communication systems. The antenna element is composed of ±45° dual polarization shared patch antenna, and is equipped with total 64 elements with horizontal 8 × vertical 4 × 2 polarization configuration. A 32-element transceiver circuit was mounted on the back side of the antenna printed circuit board. With the above circuit configuration, a full digital beamforming method has been adopted that can realize high frequency utilization efficiency by using the Sub6GHz-band massive element AAS, and excellent spatial multiplexing performance by Massive MIMO has been pursued. However, it was found that the Downlink (DL) SINR (Signal to Interference and Noise Ratio) to each terminal deteriorated because of the nonlinear distorted radiation as the transmission output power was increased in the maximum rated direction. Therefore, it has been confirmed that the spatial multiplexing performance in the high output power region is significantly improved by installing DPD. In order to clarify the affection of nonlinear distorted radiation on spatial multiplexing performance, the radiation patterns were measured using OFDM signal (subcarrier spacing 60kHz × 1500 subcarriers in 90MHz bandwidth) in an anechoic chamber. And by the simulated analysis for the affection of nonlinear distortion on null characteristic, the accuracy of nulls generated in each user terminal direction does not depend on the degree of nonlinearity, but is affected by the residual amplitude and phase variation among all transmitters and receivers after calibration (CAL). Therefore, it was clarified that the double compensation configuration of DPD and high-precision CAL is effective for achieving excellent Massive MIMO performance. This paper is based on the IEICE Japanese Transactions on Communications (Vol.J102-B, No.11, pp.816-824, Nov. 2019).},
keywords={},
doi={10.1587/transele.2021MMI0007},
ISSN={1745-1353},
month={October},}
Salinan
TY - JOUR
TI - Specificity Analysis for Nonlinear Distorted Radiation Using 4.65GHz Band Massive Element Active Antenna System for 5G and Influence on Spatial Multiplexing Performance
T2 - IEICE TRANSACTIONS on Electronics
SP - 543
EP - 551
AU - Takuji MOCHIZUKI
PY - 2021
DO - 10.1587/transele.2021MMI0007
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2021
AB - This paper reports the evaluation and simulated results of the nonlinear characteristics of the 4.65GHz Active Antenna System (AAS) for 5G mobile communication systems. The antenna element is composed of ±45° dual polarization shared patch antenna, and is equipped with total 64 elements with horizontal 8 × vertical 4 × 2 polarization configuration. A 32-element transceiver circuit was mounted on the back side of the antenna printed circuit board. With the above circuit configuration, a full digital beamforming method has been adopted that can realize high frequency utilization efficiency by using the Sub6GHz-band massive element AAS, and excellent spatial multiplexing performance by Massive MIMO has been pursued. However, it was found that the Downlink (DL) SINR (Signal to Interference and Noise Ratio) to each terminal deteriorated because of the nonlinear distorted radiation as the transmission output power was increased in the maximum rated direction. Therefore, it has been confirmed that the spatial multiplexing performance in the high output power region is significantly improved by installing DPD. In order to clarify the affection of nonlinear distorted radiation on spatial multiplexing performance, the radiation patterns were measured using OFDM signal (subcarrier spacing 60kHz × 1500 subcarriers in 90MHz bandwidth) in an anechoic chamber. And by the simulated analysis for the affection of nonlinear distortion on null characteristic, the accuracy of nulls generated in each user terminal direction does not depend on the degree of nonlinearity, but is affected by the residual amplitude and phase variation among all transmitters and receivers after calibration (CAL). Therefore, it was clarified that the double compensation configuration of DPD and high-precision CAL is effective for achieving excellent Massive MIMO performance. This paper is based on the IEICE Japanese Transactions on Communications (Vol.J102-B, No.11, pp.816-824, Nov. 2019).
ER -