{"id":2102,"date":"2023-08-23T23:13:23","date_gmt":"2023-08-23T23:13:23","guid":{"rendered":"https:\/\/www.xadv.eu\/?p=2102"},"modified":"2024-05-12T13:41:48","modified_gmt":"2024-05-12T13:41:48","slug":"network-data-analytics-function-nwdaf","status":"publish","type":"post","link":"https:\/\/www.xadv.eu\/hu\/2023\/08\/23\/network-data-analytics-function-nwdaf\/","title":{"rendered":"Network Data Analytics Function (NWDAF)"},"content":{"rendered":"<p><\/p>\n\n\n\n<p>Az NWDAF h\u00e1l\u00f3zati adatelemz\u00e9si funkci\u00f3 egy olyan 5G 3GPP szabv\u00e1nyon alapul\u00f3 m\u00f3dszer, amellyel az 5G Core, Cloud \u00e9s Edge h\u00e1l\u00f3zatokb\u00f3l adatok gy\u0171jthet\u0151ek a felhaszn\u00e1l\u00f3i eszk\u00f6z\u00f6kr\u0151l, h\u00e1l\u00f3zati funkci\u00f3kr\u00f3l, \u00fczemeltet\u00e9si, adminisztr\u00e1ci\u00f3s \u00e9s management (OAM) rendszerekr\u0151l, amelyek elemz\u00e9sre haszn\u00e1lhat\u00f3k.<\/p>\n\n\n\n<p>Az 5G PPP Working Group az 5G Architectura 3.0-s verzi\u00f3j\u00e1ban a Core Network elemz\u00e9si keretrendszer adatelemz\u00e9si k\u00e9pess\u00e9geit \u00e9s az adatelemz\u00e9si funkci\u00f3kat (DAF)  k\u00fcl\u00f6nb\u00f6z\u0151 layer-ekre bontja:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Core network domain (network data analytics functionality) (NWDAF)<\/li>\n\n\n\n<li>Big Data and management and orchestration (Big Data\/MDAF)<\/li>\n\n\n\n<li>Application function level (AFDAF)<\/li>\n\n\n\n<li>User equipment\/RAN (DAF)<\/li>\n\n\n\n<li>Data network (DN-DAF)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"912\" height=\"642\" src=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-51.png\" alt=\"\" class=\"wp-image-2128\" style=\"width:400px;height:undefinedpx\" srcset=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-51.png 912w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-51-300x211.png 300w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-51-768x541.png 768w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-51-18x12.png 18w\" sizes=\"(max-width: 912px) 100vw, 912px\" \/><\/figure>\n\n\n\n<p>Az NWDAF adatokat gy\u0171jt az 5G Core Network-r\u0151l, \u00e9s elemz\u00e9seket biztos\u00edt a h\u00e1l\u00f3zati automatiz\u00e1l\u00e1s, a z\u00e1rt hurk\u00fa (closed-loop) m\u0171veletek, a self-healing, az experience improvement \u00e9s a reporting funkci\u00f3k t\u00e1mogat\u00e1s\u00e1hoz. Az NWDAF t\u00e1mogatja az automatiz\u00e1l\u00e1st, a h\u00e1l\u00f3zat optimaliz\u00e1l\u00e1st \u00e9s az er\u0151forr\u00e1s-kezel\u00e9st, hogy a h\u00e1l\u00f3zat megfeleljen az SLA-knak \u00e9s a szolg\u00e1ltat\u00e1smin\u0151s\u00e9gi garanci\u00e1knak. A finom\u00edtott adatfolyamokon \u00e9s bevitt statisztik\u00e1kon v\u00e9gzett intelligens modellez\u00e9st haszn\u00e1lva az elemz\u00e9si k\u00e9pess\u00e9gek sz\u00e9les spektrum\u00e1t t\u00e1mogatja, a k\u00fcsz\u00f6bvez\u00e9reltt\u0151l a kifinomultabb algoritmus alap\u00fa elemz\u00e9sig.<\/p>\n\n\n\n<p>Az NWDAF az al\u00e1bbi 5G Core Network Function-r\u00f3l (NF) gy\u0171jt adatokat:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Network Repository Function (NRF),<\/li>\n\n\n\n<li>Access and Mobility Function (AMF), <\/li>\n\n\n\n<li>Session Management Function (SMF), <\/li>\n\n\n\n<li>Unified Data Management (UDM), <\/li>\n\n\n\n<li>Policy Control Function (PCF), <\/li>\n\n\n\n<li>Application Function (AF) and <\/li>\n\n\n\n<li>Network Exposure Function (NEF) and from the <\/li>\n\n\n\n<li>Operation, Administration and Management (OAM) system.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p>Az NWDAF az egyes h\u00e1l\u00f3zati szeletek minden aspektus\u00e1t figyeli, hogy a szolg\u00e1ltat\u00f3k az NWDAF \u00e1ltal ny\u00fatott adatokat felhaszn\u00e1lva infrastrukt\u00far\u00e1jukban proakt\u00edvan tudj\u00e1k kezelni a szolg\u00e1ltat\u00e1si szinvonalat.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1006\" height=\"596\" src=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-47.png\" alt=\"\" class=\"wp-image-2106\" style=\"width:500px;height:undefinedpx\" srcset=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-47.png 1006w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-47-300x178.png 300w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-47-768x455.png 768w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-47-18x12.png 18w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n\n\n\n<p>Az NWDAF &#8220;network-aware&#8221; \u00e9s k\u00fcl\u00f6nb\u00f6z\u0151 control \u00e9s data plane h\u00e1l\u00f3zatokhoz kapcsol\u00f3dik, hogy Event-eket gy\u0171jts\u00f6n az elemz\u00e9sekhez. El\u0151fizet\u00e9ses (subscription) rendszeren kereszt\u00fcl lehet\u0151v\u00e9 teszi a felhaszn\u00e1l\u00f3i NF-ek sz\u00e1m\u00e1ra, hogy el\u0151fizessenek \u00e9s\/vagy leiratkozzanak egy adott h\u00e1l\u00f3zati adatelemz\u00e9sr\u0151l.<br>Az adat elemz\u00e9si szolg\u00e1ltat\u00e1s el\u0151fizet\u00e9se sor\u00e1n meghat\u00e1rozhat\u00f3, hogy folyamatos vagy  id\u0151szakos \u00e9rtes\u00edt\u00e9st esetleg k\u00fcsz\u00f6b\u00e9rt\u00e9k el\u00e9r\u00e9sekori \u00e9rtes\u00edt\u00e9st ig\u00e9nyel a felhaszn\u00e1l\u00f3.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>NWDAF adatok alkalmaz\u00e1si esetei <\/strong><\/p>\n\n\n\n<p><strong>Anom\u00e1lia Detection<\/strong><br>Automatikus riaszt\u00e1s a hirtelen v\u00e1ltoz\u00f3 \u00e9s szokatlanul viselked\u0151 adatok el\u0151rejelz\u00e9s\u00e9re, amikor az adott adatpont k\u00edv\u00fcl esik a \u201enorm\u00e1l\u201d adatviselked\u00e9s el\u0151rejelzett tartom\u00e1ny\u00e1n.<\/p>\n\n\n\n<p><strong>Val\u00f3s idej\u0171 probl\u00e9ma-el\u0151rejelz\u00e9s<\/strong><br>Az NWDAF t\u00e1mogatja, hogy a policy, az orchestration \u00e9s az elemz\u00e9s m\u00e1s analitika felhaszn\u00e1l\u00f3i NF automatikusan \u00e9s val\u00f3s id\u0151ben reag\u00e1ljon az 5G h\u00e1l\u00f3zaton bel\u00fcli v\u00e1ltoz\u00e1sokra. Ez lehet\u0151v\u00e9 teszi az NF-ek sz\u00e1m\u00e1ra, hogy val\u00f3s id\u0151ben optimaliz\u00e1lj\u00e1k a h\u00e1l\u00f3zatot, \u00e9s megakad\u00e1lyozz\u00e1k a szolg\u00e1ltat\u00e1s roml\u00e1st az\u00e1ltal, hogy el\u0151rejelzik, ha egy m\u00e9rt adat \u00e1tl\u00e9p egy erre meghat\u00e1rozott k\u00fcsz\u00f6b\u00f6t meghat\u00e1rozott id\u0151tartom\u00e1nyon bel\u00fcl.<\/p>\n\n\n\n<p><strong>H\u00e1l\u00f3zat optimaliz\u00e1l\u00e1s<\/strong><br>Performance mutat\u00f3k el\u0151rejelz\u00e9se, amelyek seg\u00edthetnek az optimaliz\u00e1l\u00e1sban.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>A 3GPP TR 23.791 a tov\u00e1bbi AI\/ML elemz\u00e9si eseteket sorolja m\u00e9g fel az 5G-hez az NWDAF haszn\u00e1lat\u00e1val:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Load level sz\u00e1m\u00edt\u00e1s \u00e9s el\u0151rejelz\u00e9s egy network slice instance-hoz<\/li>\n\n\n\n<li>Service experience sz\u00e1m\u00edt\u00e1s \u00e9s el\u0151rejelz\u00e9s egy alkalmaz\u00e1s vagy UE-csoport sz\u00e1m\u00e1ra<\/li>\n\n\n\n<li>Elemz\u00e9si inform\u00e1ci\u00f3k \u00e9s el\u0151rejelz\u00e9sek bet\u00f6lt\u00e9se egy adott NF-hez<\/li>\n\n\n\n<li>H\u00e1l\u00f3zati terhel\u00e9si teljes\u00edtm\u00e9ny sz\u00e1m\u00edt\u00e1sa \u00e9s j\u00f6v\u0151beli terhel\u00e9s el\u0151rejelz\u00e9se<\/li>\n\n\n\n<li>UE V\u00e1rhat\u00f3 viselked\u00e9s el\u0151rejelz\u00e9se<\/li>\n\n\n\n<li>UE Rendellenes viselked\u00e9s \u00e9s rendelleness\u00e9g \u00e9szlel\u00e9se<\/li>\n\n\n\n<li>UE Mobilit\u00e1ssal kapcsolatos inform\u00e1ci\u00f3k \u00e9s el\u0151rejelz\u00e9sek<\/li>\n\n\n\n<li>UE Kommunik\u00e1ci\u00f3s minta el\u0151rejelz\u00e9se<\/li>\n\n\n\n<li>Congestion inform\u00e1ci\u00f3 \u2013 aktu\u00e1lis \u00e9s el\u0151rejelzett torl\u00f3d\u00e1s egy adott helyen<\/li>\n\n\n\n<li>A szolg\u00e1ltat\u00e1smin\u0151s\u00e9g (QoS) fenntarthat\u00f3s\u00e1ga, QoS v\u00e1ltoz\u00e1s\u00e1nak el\u0151rejelz\u00e9se<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-medium-font-size\"><strong>NWDAF \u00e9s AI\/ML<\/strong><\/p>\n\n\n\n<p>Az NWDAF t\u00e1mogatja a magasabb szint\u0171 intelligencia bevezet\u00e9s\u00e9t az 5G h\u00e1l\u00f3zatba. A g\u00e9pi tanul\u00e1son (AI\/ML) alapul\u00f3 KPI-k haszn\u00e1lat\u00e1val inputot ad az olyan funkci\u00f3knak mint:<\/p>\n\n\n\n<p><strong>Closed-Loop automatiz\u00e1l\u00e1s: <\/strong>Az analitika, a mesters\u00e9ges intelligencia \u00e9s a policy kombin\u00e1l\u00e1sa a szolg\u00e1ltat\u00e1s \u00e9s h\u00e1l\u00f3zat optimiz\u00e1l\u00e1s automatiz\u00e1l\u00e1sa \u00e9rdek\u00e9ben. Elengedhetetlen a QoE optimiz\u00e1l\u00e1s\u00e1ban.<\/p>\n\n\n\n<p><strong>Auto-Discovery Insights: <\/strong>Betekint\u00e9st ny\u00fajt a h\u00e1l\u00f3zatba az auto-dicovery funkci\u00f3 r\u00e9v\u00e9n, amely elengedhetetlen \u00faj szolg\u00e1ltat\u00e1sok l\u00e9trehoz\u00e1s\u00e1hoz a h\u00e1l\u00f3zati szeletek szintj\u00e9n \u00e9s a teljes 5G h\u00e1l\u00f3zatban.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>NWDAF telep\u00edt\u00e9si kih\u00edv\u00e1sok \u00e9s aj\u00e1nl\u00e1sok<\/strong><\/p>\n\n\n\n<p>Az NWDAF \u00fczembe helyez\u00e9s\u00e9n\u00e9l a szolg\u00e1ltat\u00f3k a k\u00f6vetkez\u0151 kih\u00edv\u00e1sokkal szembes\u00fclhetnek:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>El\u0151fordulhat, hogy egyes h\u00e1l\u00f3zati funkci\u00f3k nem felelnek meg a szabv\u00e1nyoknak, vagy nem rendelkeznek megfelel\u0151 interf\u00e9sszel az adatok biztos\u00edt\u00e1s\u00e1hoz vagy az analitikai szolg\u00e1ltat\u00e1sok fogad\u00e1s\u00e1hoz.<\/li>\n\n\n\n<li>Az NWDAF integr\u00e1l\u00e1sa a megl\u00e9v\u0151 analitikai alkalmaz\u00e1sokkal a 4G h\u00e1l\u00f3zatban kulcsfontoss\u00e1g\u00fa, mivel \u00f6sszes\u00edtett h\u00e1l\u00f3zati adatokra van sz\u00fcks\u00e9g a k\u00f6zpontos\u00edtott elemz\u00e9si felhaszn\u00e1l\u00e1si esetekre vonatkoz\u00f3 d\u00f6nt\u00e9sek meghozatal\u00e1hoz.<\/li>\n\n\n\n<li>Sok szolg\u00e1ltat\u00f3 k\u00fcl\u00f6nb\u00f6z\u0151 analitikai eszk\u00f6z\u00f6kkel rendelkezik k\u00fcl\u00f6nf\u00e9le felhaszn\u00e1l\u00e1si esetekre, (p\u00e9ld\u00e1ul bev\u00e9tel biztos\u00edt\u00e1s, el\u0151fizet\u0151i \/ marketing elemz\u00e9s kezel\u00e9s). Ha mindez egyetlen analitikai eszk\u00f6zbe van integr\u00e1lva, amely az NWDAF haszn\u00e1lati eseteit is kiszolg\u00e1lja, kulcsfontoss\u00e1g\u00fa, hogy a jobb betekint\u00e9s a h\u00e1l\u00f3zati adatokba.<\/li>\n\n\n\n<li>Gondoskodni kell arr\u00f3l, hogy a telep\u00edtett analitikai funkci\u00f3 integr\u00e1lva legyen p\u00e9ld\u00e1ul a h\u00e1l\u00f3zati automatiz\u00e1l\u00e1shoz sz\u00fcks\u00e9ges orchestratorral, a BI-eszk\u00f6z\u00f6kkel, felhaszn\u00e1l\u00f3i fel\u00fclettel, \u00e9rtes\u00edt\u00e9si alkalmaz\u00e1ssal a jelent\u00e9s k\u00e9sz\u00edt\u00e9shez.<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Az NWDAF h\u00e1l\u00f3zati adatelemz\u00e9si funkci\u00f3 egy olyan 5G 3GPP szabv\u00e1nyon alapul\u00f3 m\u00f3dszer, amellyel az 5G Core, Cloud \u00e9s Edge h\u00e1l\u00f3zatokb\u00f3l adatok gy\u0171jthet\u0151ek a felhaszn\u00e1l\u00f3i eszk\u00f6z\u00f6kr\u0151l, h\u00e1l\u00f3zati funkci\u00f3kr\u00f3l, \u00fczemeltet\u00e9si, adminisztr\u00e1ci\u00f3s \u00e9s management (OAM) rendszerekr\u0151l, amelyek elemz\u00e9sre haszn\u00e1lhat\u00f3k. Az 5G PPP Working Group az 5G Architectura 3.0-s verzi\u00f3j\u00e1ban a Core Network elemz\u00e9si keretrendszer adatelemz\u00e9si k\u00e9pess\u00e9geit \u00e9s az &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.xadv.eu\/hu\/2023\/08\/23\/network-data-analytics-function-nwdaf\/\"> <span class=\"screen-reader-text\">Network Data Analytics Function (NWDAF)<\/span> Read More &raquo;<\/a><\/p>","protected":false},"author":1,"featured_media":2106,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[21,22],"tags":[],"class_list":["post-2102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-5g","category-cloud-ran"],"_links":{"self":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/2102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/comments?post=2102"}],"version-history":[{"count":6,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/2102\/revisions"}],"predecessor-version":[{"id":2713,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/2102\/revisions\/2713"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/media\/2106"}],"wp:attachment":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/media?parent=2102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/categories?post=2102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/tags?post=2102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}