{"id":174473,"date":"2017-04-27T22:18:07","date_gmt":"2017-04-27T22:18:07","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/caracteriser-des-canaux-5g-en-ondes-millimetriques\/"},"modified":"2017-04-27T22:18:07","modified_gmt":"2017-04-27T22:18:07","slug":"caracteriser-des-canaux-5g-en-ondes-millimetriques","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/caracteriser-des-canaux-5g-en-ondes-millimetriques\/","title":{"rendered":"Caract\u00e9riser des canaux 5G en ondes millim\u00e9triques"},"content":{"rendered":"<p>Les mesures des canaux peuvent montrer comment les signaux se refl\u00e8tent ou sont bloqu\u00e9s par des obstacles tels que des arbres, des b\u00e2timents, des voitures et m\u00eame des personnes. \u00abUtiliser le spectre mmWave pour les mobiles 5G pr\u00e9sente de nombreux d\u00e9fis que nous croyons avoir r\u00e9solus\u00bb, a d\u00e9clar\u00e9 Marachel Knight (1)\u00a0\u00bbAu d\u00e9but nous avons identifi\u00e9 que la conception et le suivi en temps r\u00e9el du spectre en mmWave devait \u00eatre beaucoup plus pr\u00e9cis que les syst\u00e8mes cellulaires actuels. Avec l&rsquo;aide de la plate-forme logicielle de NI, AT &amp; T a d\u00e9velopp\u00e9 un nouveau type de sondeur de canaux et nous l&rsquo;utilisons pour d\u00e9velopper des mod\u00e8les hautement avanc\u00e9s qui fonctionneront sur notre r\u00e9seau.\u00a0\u00bb<\/p>\n<p>D\u00e9nomm\u00e9 &nbsp;\u00ab\u00a0Porcupine\u00a0\u00bb chez AT &amp; T, cette sonde de canal utilise une architecture bas\u00e9e sur le syst\u00e8me d&rsquo;\u00e9metteur-r\u00e9cepteur mmWave de NI. Cette conception offre plusieurs avantages cl\u00e9s. Elle permet des mesures d&rsquo;angle d&rsquo;arriv\u00e9e (Angle-Of-Arrival) qui prennent habituellement 15 minutes ou plus \u00e0 compl\u00e9ter (en utilisant des unit\u00e9s panoramiques) pour \u00eatre r\u00e9alis\u00e9es dans 150 millisecondes et afficher les r\u00e9sultats en temps r\u00e9el.<\/p>\n<p>\u00ab\u00a0Porcupine\u00a0\u00bb capture les mesures de canal o\u00f9 toutes les donn\u00e9es sont acquises et trait\u00e9es en temps r\u00e9el. D&rsquo;autres approches permettent de capturer des donn\u00e9es brutes et de post-processus pour caract\u00e9riser la cha\u00eene tout en donnant une seule mesure toutes les 15 minutes. \u00ab\u00a0Porcupine\u00a0\u00bb peut \u00e9galement fournir environ 6 000 mesures dans cette dur\u00e9e. C&rsquo;est comme capturer 15 minutes d&rsquo;action avec une vid\u00e9o au lieu d&rsquo;une photo fixe. La vid\u00e9o raconte toute l&rsquo;histoire, alors que la photo saisie un instant.<\/p>\n<hr \/>\n<p>La mesure en temps r\u00e9el \u00e9limine la r\u00e9p\u00e9tition des exp\u00e9riences ou l&rsquo;ajustement de l&rsquo;\u00e9quipement pour prendre plusieurs mesures \u00e0 partir d&rsquo;un emplacement. Comme l&rsquo;extraction des param\u00e8tres est effectu\u00e9e en temps r\u00e9el, l&rsquo;int\u00e9grit\u00e9 des donn\u00e9es collect\u00e9es peut \u00e9galement \u00eatre \u00e9valu\u00e9e en temps r\u00e9el. Ainsi, les donn\u00e9es inexactes peuvent \u00eatre remplac\u00e9es imm\u00e9diatement par un nouveau jeu de mesures au moment de l&rsquo;\u00e9valuation. Ce qui repr\u00e9sente un r\u00e9el gain de temps<\/p>\n<p>\u00abPorcupine\u00bb permet de mesurer 5G des fr\u00e9quences d&rsquo;ondes. Cette capacit\u00e9 va au-del\u00e0 de la port\u00e9e des autres sondeurs de canal mmWave. Comme l&rsquo;\u00e9cosyst\u00e8me 5G examine les nouveaux cas d&rsquo;utilisation pour la 5G tels que la conduite assist\u00e9e, la voiture connect\u00e9e, les voitures autonomes et plus encore, la capacit\u00e9 d&rsquo;\u00e9tudier et de mod\u00e9liser les canaux de v\u00e9hicules deviendra de plus en plus critique.<\/p>\n<p>(1) <em>vice-pr\u00e9sident senior de l&rsquo;architecture et du design du r\u00e9seau sans fil, AT&amp;T<\/em>.<\/p>\n<p><a href=\"http:\/\/www.att.com\/\">www.att.com<\/a>&nbsp; &nbsp;&#8211; &nbsp;&nbsp;<a href=\"http:\/\/www.ni.com\/\">www.ni.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>National Instruments et le fournisseur de services de t\u00e9l\u00e9communications AT &amp; T ont travaill\u00e9 ensemble sur la conception d&rsquo;un des outils les plus rapides et des plus pr\u00e9cis pour la caract\u00e9risation des canaux 5G \u00a0en ondes millim\u00e9triques (mmWave)<\/p>\n","protected":false},"author":11,"featured_media":174474,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[911],"domains":[47],"ppma_author":[1143],"class_list":["post-174473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","tag-testandmeasurement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Caract\u00e9riser des canaux 5G en ondes millim\u00e9triques ...<\/title>\n<meta name=\"description\" content=\"National Instruments et le fournisseur de services de t\u00e9l\u00e9communications AT &amp; T ont travaill\u00e9 ensemble sur la conception d&#039;un des outils les plus...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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