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Add ascii art protocol overview. 

I have my paper notes, but they exist only once.
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Neels Hofmeyr 2016-01-11 14:49:55 +01:00
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doc/protocols_around_hnbgw.txt Normal file
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Who Talks What Around the Home Node B Gateway
=============================================
(wip 2016-01-11)
+------------+ +--------+ +----------+
UE <-->| hNodeB |<--Iuh---->| HNB-GW |<--IuCS-->| OsmoCSCN |
UE <-->| femto cell | ...-->| | +----------+
| | | |
+------------+<--GTP-U | |
\ | | +------+ +------+
| | |<--IuPS-->| SGSN |<--GTP-C-->| GGSN |
| +--------+ +------+ GTP-U-->| |
| / +------+
\_______________________________/
Iuh IuCS/IuPS
NAS +----+----+ +----+----+
Non-Access Stratum | CC | MM | | CC | MM |
- - - - - - - - - - - +----+----+-------+ +----+----+
| RANAP | | H | RANAP |
Access Stratum +---------+ HNBAP | N +---------+ - - SCCP USER SAP
| RUA | | B | SUA | \
+---------+-------+ - +---------+ |
| SCTP | G | SCTP | } SIGTRAN
+-----------------+ W +---------+ |
| IP | | IP | /
+-----------------+ +---------+
Various SIGTRAN implementations:
IuCS/IuPS
usual
| simplest
| |
v v
+------+------+------+-----+
| SCCP | SCCP | | |
+------+------+ SCCP | |
| MTP3 | MTP3 | | |
+------+------+------+ SUA |
| MTP2 | | | |
+------+ M2UA | M3UA | |
| M2PA | | | |
+------+------+------+-----+
| SCTP |
+--------------------------+
| IP |
+--------------------------+
UE (User Endpoint) == MS (Mobile Subscriber) == mobile device
CSCN (Circuit Switched Core Network) == OsmoNITB without BSC