Kako radi mobilna mreža 5G — od SIM do jezgre mreže

Pratite signal od trenutka pritiska tipke 'pozovi' do zvona na drugom kraju: kako SIM kartica dokazuje identitet, kako glas postaje OFDM radioval i kako LTE jezgra usmjerava poziv. Na primjerima triju dokumentiranih mrežnih kvarova — T-Mobile 2020., Rogers 2022. i AT&T 2024. — film otkriva što se događa kada konfiguracijaska pogreška sruši mrežu od 12 milijuna korisnika. Uključeni su i nastanak prvog komercijalnog GSM poziva 1991., bitka standarda GSM i CDMA te granice 5G pokrivenosti prema ITU podacima za 2024. Poglavlja 00:00 Jutro bez signala 01:38 Pošiljatelj: Kako se telefon prijavljuje mreži 04:31 Kodiranje: Kako glas postaje radioval 08:45 Prijenos i usmjeravanje: Put signala od antene do jezgre mreže 14:15 Helsinki, 1. srpnja 1991.: Prva komercijalna GSM mreža 17:28 Dvije norme: GSM i CDMA i zašto je standardizacija važnija od tehnologije 21:36 Kada mreža padne: Tri dokumentirana kvara i što su otkrili 26:11 Primatelj, granice i povratak na početno pitanje Izvori - Cloudflare — Cloudflare's view of the Rogers Communications outage in Canada: https://blog.cloudflare.com/cloudflares-view-of-the-rogers-communications-outage-in-canada/ - MobileSyrup — July 2022 Rogers outage caused by human error, prolonged by management 'deficiencies': https://mobilesyrup.com/2024/07/05/july-2022-rogers-outage-report-crtc/ - The Globe and Mail — How a coding error caused Rogers outage that left millions without service: https://www.theglobeandmail.com/business/article-how-a-coding-error-caused-rogers-outage-that-left-millions-without/ - iPhone in Canada — CRTC Report Explains the 'Catastrophic' Rogers Outage from 2022: https://www.iphoneincanada.ca/2024/07/05/2022-rogers-outage-14-hours-find-root-cause-crtc/ - NANOG (North American Network Operators Group) mailing list — Re: Rogers 2022 network outage, Xona Report (NANOG mailing list): https://www.mail-archive.com/nanog@nanog.org/msg125614.html - iPhone in Canada / CRTC (Xona Partners report) — Assessment of Rogers Networks for Resiliency and Reliability Following the 8 July 2022 Outage – CRTC report summary: https://www.iphoneincanada.ca/2024/07/05/2022-rogers-outage-14-hours-find-root-cause-crtc/ - iPhone in Canada / CRTC (Xona Partners report) — CRTC Report Explains the 'Catastrophic' Rogers Outage from 2022: https://www.iphoneincanada.ca/2024/07/05/2022-rogers-outage-14-hours-find-root-cause-crtc/ - ITU-T (International Telecommunication Union – Telecommunication Standardization Sector) — Recommendation ITU-T E.212 (06/2024) – The international identification plan for public networks and subscriptions: https://www.itu.int/epublications/zh/publication/itu-t-e-212-2024-06-the-international-identification-plan-for-public-networks-and-subscriptions/en - ITU-T — Recommendation ITU-T E.212 (06/2024) – The international identification plan for public networks and subscriptions: https://www.itu.int/epublications/zh/publication/itu-t-e-212-2024-06-the-international-identification-plan-for-public-networks-and-subscriptions/en - Wikipedia / en-academic — Network switching subsystem (Wikipedia, mirrored on en-academic.com): https://en-academic.com/dic.nsf/enwiki/353897 - RF Wireless World — GSM Architecture: Understanding the 2G Network: https://www.rfwireless-world.com/tutorials/gsm-architecture-2g-network - arXiv (preprint); authors Hussain et al., citing GSM 03.20 / ETSI TS 143 020 — Retrofitting mutual authentication to GSM using RAND hijacking: https://arxiv.org/pdf/1607.00729 - arXiv (preprint), citing GSM 03.20 — Retrofitting mutual authentication to GSM using RAND hijacking: https://arxiv.org/pdf/1607.00729 - Payatu (security research company blog) — GSM Encryption And Location Update Process: https://payatu.ai/blog/gsm-encryption-and-location-update-process/ - Payatu — GSM Encryption And Location Update Process: https://payatu.ai/blog/gsm-encryption-and-location-update-process/ - arXiv (preprint) — Retrofitting mutual authentication to GSM using RAND hijacking: https://arxiv.org/pdf/1607.00729 - ETSI / 3GPP — ETSI TS 123 012 V13.0.0 – Digital cellular telecommunications system; Location management procedures (3GPP TS 23.012 version 13.0.0 Release 13): https://www.etsi.org/deliver/etsi_ts/123000_123099/123012/13.00.00_60/ts_123012v130000p.pdf - ETSI / 3GPP — ETSI TS 123 012 V13.0.0 – Location management procedures (3GPP TS 23.012 Release 13): https://www.etsi.org/deliver/etsi_ts/123000_123099/123012/13.00.00_60/ts_123012v130000p.pdf - 3GPP — 3GPP Specification 26.090 – SpecificationDetails: https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1392 - Library of Congress — AMR, Adaptive Multi-Rate Speech Codec – Library of Congress Digital Formats: https://www.loc.gov/preservation/digital/formats/fdd/fdd000254.shtml - … Napomene - Naracija: sintetski (AI) glas. Glazba: originalna, sintetizirana za ovaj video. - Sheme su pojednostavljeni prikazi. #dokumentarac #mobilnamreža #tehnologija

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