{"id":352,"date":"2023-11-28T04:46:53","date_gmt":"2023-11-28T01:46:53","guid":{"rendered":"https:\/\/sms-txt.net\/?p=352"},"modified":"2024-09-05T12:44:20","modified_gmt":"2024-09-05T09:44:20","slug":"ss7-ydinverkkoarkkitehtuuri","status":"publish","type":"post","link":"https:\/\/sms-txt.net\/fi\/ss7-sms\/ss7-ydinverkkoarkkitehtuuri\/","title":{"rendered":"SS7-ydinverkkoarkkitehtuuri"},"content":{"rendered":"<h1>SS7 SMS-PUHELUN SIJAINTI<\/h1>\n<p>GSM-ydinverkko (CN, Network Switching Subsystem NSS) on GSM-j\u00e4rjestelm\u00e4n osa, joka huolehtii matkapuhelinten puhelunv\u00e4lityksest\u00e4 ja liikkuvuuden hallinnasta. CN koostuu seuraavista osista<\/p>\n<p><strong>Matkaviestinpalvelujen kytkent\u00e4keskus (MSC)<\/strong>: muodostaa radioj\u00e4rjestelm\u00e4n ja kiinte\u00e4n verkon v\u00e4lisen rajapinnan. Se suorittaa kaikki tarvittavat toiminnot, joita tarvitaan piirikytkent\u00e4isten palvelujen k\u00e4sittelemiseksi matkaviestinasemille ja matkaviestinasemilta (3GPP, 2015, s. 26). MSC koostuu yleens\u00e4 kahdesta j\u00e4rjestelm\u00e4st\u00e4: MSC-palvelimesta, joka vastaa signaloinnista, ja mediayhdysk\u00e4yt\u00e4v\u00e4st\u00e4 (MGW), joka k\u00e4sittelee k\u00e4ytt\u00e4j\u00e4liikennett\u00e4.<\/p>\n<p><strong>Kotitilauspalvelin (HSS)<\/strong> on tietyn k\u00e4ytt\u00e4j\u00e4n p\u00e4\u00e4tietokanta. Se on kokonaisuus, joka sis\u00e4lt\u00e4\u00e4 tilaukseen liittyv\u00e4t tiedot puheluita\/istuntoja tosiasiallisesti k\u00e4sittelevien verkkoyksik\u00f6iden tukemiseksi (3GPP, 2015, s. 22). HSS:ss\u00e4 on seuraavat tiedot: k\u00e4ytt\u00e4j\u00e4n tunniste-, numerointi- ja osoitetiedot, k\u00e4ytt\u00e4j\u00e4n turvallisuustiedot, k\u00e4ytt\u00e4j\u00e4n sijaintitiedot ja k\u00e4ytt\u00e4j\u00e4profiilitiedot. HSS-toiminnon suorittaa kaksi verkkokomponenttia: Kotipaikkarekisteri (HLR) ja todennuskeskus (AuC).<\/p>\n<p><strong>Kotipaikkarekisteri (HLR)<\/strong> on keskustietokanta, joka sis\u00e4lt\u00e4\u00e4 tiedot jokaisesta matkapuhelintilaajasta, jolla on lupa k\u00e4ytt\u00e4\u00e4 GSM-ydinverkkoa. Kukin k\u00e4ytt\u00e4j\u00e4 voidaan liitt\u00e4\u00e4 vain yhteen HLR-tietokantaan.<\/p>\n<p><strong>Todentamiskeskus (AuC)<\/strong> on liitetty tiettyyn HLR:\u00e4\u00e4n, ja se tallentaa kunkin kyseiseen HLR:\u00e4\u00e4n rekister\u00f6idyn tilaajan identiteettiavaimen. Avaimen avulla luodaan turvatietoja, joita k\u00e4ytet\u00e4\u00e4n my\u00f6hemmin tilaajan ja verkon keskin\u00e4iseen todennukseen, viestinn\u00e4n eheyden ja luottamuksellisuuden suojaamiseen (3GPP, 2015, s. 23).<\/p>\n<p><strong>Vierailijarekisteri (VLR)<\/strong> on tietokanta tilaajista, jotka ovat liikkuneet sen MSC:n toimialueella, jota se palvelee. Kun matkaviestinasema (MS) tulee uudelle sijaintialueelle, se aloittaa rekister\u00f6intimenettelyn. Alueesta vastaava MSC huomaa t\u00e4m\u00e4n rekister\u00f6innin ja siirt\u00e4\u00e4 vierailijarekisteriin sen sijaintialueen tunnistetiedot, jossa matkaviestinasema (MS) sijaitsee. Jos kyseist\u00e4 MS:\u00e4\u00e4 ei ole viel\u00e4 rekister\u00f6ity VLR:\u00e4\u00e4n, VLR ja HLR vaihtavat tietoja, jotta MS:\u00e4\u00e4 koskevat CS-puhelut voidaan k\u00e4sitell\u00e4 asianmukaisesti. K\u00e4yt\u00e4nn\u00f6ss\u00e4 useimmat toimittajat integroivat VLR:n suorituskykysyist\u00e4 suoraan V-MSC:hen (3GPP, 2015, s. 25).<\/p>\n<p><strong>Lyhytsanomapalvelun yhdysk\u00e4yt\u00e4v\u00e4 (SMSC)<\/strong> toimii rajapintana lyhytsanomapalvelukeskuksen ja matkaviestinverkon v\u00e4lill\u00e4, jotta lyhytsanomia voidaan toimittaa matkaviestimille palvelukeskuksesta (3GPP, 2015, s. 26).<\/p>\n<p><strong>Signaalinsiirtopiste (STP)<\/strong> vastaa SS7-sanomien siirrosta muiden SS7-solmujen v\u00e4lill\u00e4 ja toimii v\u00e4h\u00e4n kuin reititin IP-verkossa (Dryburgh, Hewet, 2005).<\/p>","protected":false},"excerpt":{"rendered":"<p>SS7 SMS CALL LOCATION GSM-ydinverkko (CN) (tai Network Switching Subsystem NSS) on GSM-j\u00e4rjestelm\u00e4n osa, joka hoitaa matkapuhelinten puhelunv\u00e4lityksen ja liikkuvuuden hallinnan. CN koostuu seuraavista komponenteista Matkaviestinpalvelujen kytkent\u00e4keskus (MSC): muodostaa rajapinnan radioj\u00e4rjestelm\u00e4n ja kiinte\u00e4n verkon v\u00e4lill\u00e4.....<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-352","post","type-post","status-publish","format-standard","hentry","category-ss7-sms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v26.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SS7 Core Network Architecture<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sms-txt.net\/fi\/ss7-sms\/ss7-ydinverkkoarkkitehtuuri\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SS7 Core Network Architecture\" \/>\n<meta property=\"og:description\" content=\"SS7 SMS CALL LOCATION The GSM Core network (CN) (or Network Switching Subsystem NSS) is the component of the GSM system that carries out call switching and mobility management for mobile phones. 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