28C3 - Version 2.3.5
28th Chaos Communication Congress
Behind Enemy Lines
| Speakers | |
|---|---|
|
Harald Welte |
| Schedule | |
|---|---|
| Day | Day 3 - 2011-12-29 |
| Room | Saal 1 |
| Start time | 17:15 |
| Duration | 01:00 |
| Info | |
| ID | 4663 |
| Event type | Lecture |
| Track | Hacking |
| Language used for presentation | English |
| Feedback | |
|---|---|
|
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Cellular protocol stacks for Internet
GPRS, EDGE, UMTS, HSPA demystified
Almost everyone uses the packet oriented transmission modes of cellular networks. However, unlike TCP/IP, Ethernet and Wifi, not many members of the hacker commnunity are familiar with the actual protocol stack for those services.
This talk is aimed to give an in-depth explanation how the lower layer protocols on the air and wired interfaces for packet data services in cellular networks are structured.
For 2.5/2.75G, this includes RLC/MAC, NS, BSSGP, LLC, SNDCP, GTP For 3G/3.5G, this includes RRC, RLC, PDCP, NBAP, RANAP