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Полезные советы/инфо от Face-Off |
Протоколы сотовой связи (GSM900).
B-interface – MSC-VLR
BSSAP – BSS Application Part (handles MSC-MS messages)
- DTAP – Direct Transfer Application sub-Part (transparent messages, L3)
- BSSMAP – BSS Management Application sub-Part (non transparent mess, radio ch management)
BTSM – BSC to BTS
C-interface – MSC-HLR
CC – Call Control
CCM - common channel management
DCM - Dedicated channel management
D-interface – VLR-HLR
E-interface – MSC-GMSC
F-interface – MSC-EIR
GPRSAP – GPRS Application Part (Radio Packet Channel management, paging)
H-interface – AUC-HLR
ISUP - The ISDN user part. A user of OSI Layers 1 through 3, just like the SCCP. Although no GSM protocol, ISUP is used by
the MSC for signaling purposes toward the ISDN.
M7 – Mobile Common Channel Signalling System Number 7
MAP - Mobile application part
MM – Mobility Management transparently exchange data between the MS and the NSS.
MTP - Message transfer part. Part of SS7 that covers OSI Layers 1 through 3.
RLM - radio link management
RR – Radio Resource (Layer 3)
SCCP - Signaling connection control part. Defined in OSI Layers 3 and 4. The SCCP is a user of the SS7-MTP 3 and is used by
GSM on almost all NSS interfaces, including the A-interface.
SP – Signaling Point (SS7)
SS7 - provides in OSI Layers 1 to 3
STP – Signaling Transfer Point (SS7)
TCAP - Transaction capabilities application part. (layer 4,5,6)
TRXM - TRX management
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Полезные советы/инфо от Face-Off |
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