Serving Mobile Location Centre (SMLC)

Creativity Software’s SMLC (SMLC / SAS / E-SMLC ) can be provided as a standalone unit, or co-located with the GMLC, depending on the telecom mobile network architecture required. This flexibility is a key strength, allowing Creativity Software to meet the requirements of different network configurations and integration with equipment from different vendors. It can be configured as either an SMLC for GSM networks and their derivatives, or as a fully standards-compliant PDE for CDMA networks.

SMLC for Mobile Network Operators – How it works

Location Services (LCS) cover services using the positional (geographical) location of mobile user’s equipment (UE) to offer a range of value added services. The location of a user’s mobile is defined in terms of latitude and longitude coordinates. The accuracy depends on the particular technique used to locate the mobile. Several mobile industry variants are currently deployed. The method for ‘requesting’ a user’s mobile location and the resultant network generated messages are standardised regardless of the location technique in use. As mobile networks can support multiple BSCs, Creativity Software’s SMLC platform can support connectivity to a number of BSCs via the standard Lb interface. It fully supports the 3GPP standardised network infrastructure for Location Services. This allows the SMLC to obtain radio measurements from the widest range of sources to determine the position of any target UE within the network.

Key Features / Support for the following interfaces:

  • Iupc Interface between RNC and SAS (RNC interface)
  • Lb Interface between SMLC and BSC (BSC interface)
  • Lc Interface between GMLC and gsmSCF (CAMEL interface)
  • Le Interface between External User and MLC (external interface)
  • Lh Interface between GMLC and HLR (HLR interface)
  • Lg Interface between GMLC and VMSC (gateway MLC interface)
  • SLh Interface between GMLC and HSS
  • SLg Interface between GMLC and MME
  • SLs Interface between E-SMLC and MME
  • Sh Interface between application server and HSS
  • Ml Interface between E-CSCF and LRF