tuzsutТруды учебных заведений связиProceedings of Telecommunication Universities1813-324X2712-8830СПбГУТ10.31854/1813-324X-2022-8-4-100-108tuzsut-421Research ArticleРЕЗУЛЬТАТЫ ИССЛЕДОВАНИЙ МОЛОДЫХ УЧЕНЫХRESEARCH RESULTS BY YOUNG SCIENTISTSИсследование корреляционных свойств сигналообразующих последовательностей в целях оптимизации характеристик канала случайного доступа 5G NRCorrelation Properties Investigation of Signaling Sequences to Optimize the 5G NR Random Access Channel Characteristicshttps://orcid.org/0000-0002-8782-5819БабановИ. А.BabanovI.

Бабанов Иван Андреевич, аспирант кафедры радиосвязи и вещания

Санкт-Петербург, 193232

Ivan Babanov

St. Petersburg, 193232

ivan.babanov@gmail.comСанкт-Петербургский государственный университет телекоммуникаций им. М.А. Бонч-БруевичаРоссияThe Bonch-Bruevich Saint-Petersburg State University of TelecommunicationsRussian Federation20221001202384100108Copyright © Бабанов И.А., 20232023Бабанов И.А.Babanov I.This work is licensed under a Creative Commons Attribution 4.0 License.https://tuzs.sut.ru/jour/article/view/421

В статье исследованы корреляционные свойства сигналообразующих последовательностей, которые могут быть положены в основу методики оптимизации канала случайного доступа. Идея основана на выборе корней для построения преамбул случайного доступа, вероятность детектирования которых выше, чем выбранных классическим способом корней. Приводятся результаты имитационного моделирования на всем множестве преамбул длиной 839 отсчетов. Показано, что с ростом количества одновременно передаваемых преамбул возрастает разброс возможных значений коэффициента корреляции, что прямо влияет на успешность детектирования. Сделан вывод о возможности оптимизации характеристик канала случайного доступа, как с точки зрения конфигурации его ресурсов, так и рационального выбора корней сигналообразующих преамбул.

The article describes a random access channel optimization technique based on the choice of roots for constructing random access preambles, the detection probability of which is higher than the roots selected in the classical way according. The results of simulation modeling are presented for the entire set of preambles 839 samples long. It is shown that with an increase in the number of simultaneously transmitted preambles, the spread of possible values of the correlation coefficient increases, which directly affects the success of detection. The conclusion is made about the possibility of optimizing the characteristics of the random access channel, both in terms of the configuration of the random access channel resources and based on the rational choice of the roots of the signal-forming preambles.

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The authors declare that there are no conflicts of interest present.