Subsystem Number

Subsystem Number

SCCP-Subsystem-Nummern werden genutzt, um Anwendungen innerhalb der SCCP-Signalisierung zu unterscheiden.

Der Wertebereich umfasst 0 bis 255 (1 Oktett), wobei folgende Bereiche unterschieden werden:

Die Nummern sind in TS 23.003 standardisiert.

Im GSM/UMTS werden folgende Subsystem-Nummern verwendet:

  • 0000 0110 (6) HLR (MAP)
  • 0000 0111 (7) VLR (MAP)
  • 0000 1000 (8) MSC (MAP)
  • 0000 1001 (9) EIR (MAP)
  • 0000 1010 (10) is allocated for evolution (possible Authentication Centre).

Die folgenden nationalen Netz Subsystem-Nummern werden in GSM-Netzen genutzt:

  • 1111 1001 PCAP
  • 1111 1010 BSC (BSSAP-LE)
  • 1111 1011 MSC (BSSAP-LE)
  • 1111 1100 SMLC (BSSAP-LE)
  • 1111 1101 BSS O&M (A Interface)
  • 1111 1110 BSSAP (A Interface)

Die folgenden nationalen Netz Subsystem-Nummern werden in GSM-/UMTS-Netzen genutzt:

  • 1000 1110 RANAP
  • 1000 1111 RNSAP
  • 1001 0001 GMLC (MAP)
  • 1001 0010 CAP
  • 1001 0011 gsmSCF (MAP) or IM-SSF (MAP)
  • 1001 0100 SIWF (MAP)
  • 1001 0101 SGSN (MAP)
  • 1001 0110 GGSN (MAP)

Die Werte sind aus der englischen Wikipediaausgabe entnommen.


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