Intellectual Property Rights
Foreword
Introduction
1 Scope
  1.1 References
2 Definitions and abbreviations
  2.1 Location register
  2.2 Authentication Centre (AuC)
  2.3 Equipment Identity Register (EIR)
  2.4 Mobile-services Switching Centre (MSC)
  2.5 Border Gateway (BG) $(GPRS)$
  2.6 Public Land Mobile Network (PLMN)
  2.7 Cell
  2.8 Base Station Controller (BSC) area
  2.9 Location Area (LA)
  2.10 Routing Area (RA) $(GPRS)$
  2.11 MSC area
  2.12 GPRS Support Nodes (GSN) $(GPRS)$
  2.13 VLR area
  2.14 SGSN area $(GPRS)$
  2.15 Zones for Regional Subscription
  2.16 Service area
  2.17 Group call area
  2.18 Group Call Register (GCR)
  2.19 Serving Mobile Location Center (SMLC)
       $(LCS)$
  2.20 Gateway Mobile Location Center (GMLC) $(LCS)$
  2.21 Location Measurement Unit (LMU) $(LCS)$
3 The entities of the mobile system
  3.1 The Home Location Register (HLR)
  3.2 The Visitor Location Register (VLR)
  3.3 The Authentication Centre (AuC)
  3.4 The Equipment Identity Register (EIR)
  3.5 The Mobile-services Switching Centre (MSC)
  3.6 The Gateway MSC (GMSC)
  3.7 SMS Gateway MSC (SMS-GMSC)
  3.8 SMS Interworking MSC
  3.9 The Interworking Function (IWF)
  3.10 The Base Station System (BSS)
  3.11 The Mobile Station (MS)
  3.12 The Group Call Register (GCR)
  3.13 Shared Interworking Function (SIWF) $(SIWF)$
  3.14 Serving GPRS Support Node (SGSN) $(GPRS)$
  3.15 Gateway GPRS Support Node (GGSN) $(GPRS)$
4 Configuration of a Public Land Mobile Network
  4.1 General
  4.2 Basic configuration (not supporting GPRS)
  4.3 Basic configuration with support for
      GPRS $(GPRS)$
  4.4 Packet Data Backbone Networks in PLMNs
      supporting GPRS $(GPRS)$
  4.5 Basic configuration with support for
      LCS $(LCS)$
5 PLMN interfaces
  5.1 General
  5.2 Interface between the MSC and Base Station
       System (A-interface)
  5.3 Interface between BSC and BTS (Abis-interface)
  5.4 Interface between the MSC and its associated
       VLR (B-interface)
  5.5 Interface between the HLR and the MSC
       (C-interface)
  5.6 Interface between the HLR and the VLR
       (D-interface)
  5.7 Interface between MSCs (E-interface)
  5.8 Interface between MSC and EIR (F-interface)
  5.9 Interface between VLRs (G-interface)
  5.10 Interface between HLR and AuC (H-Interface)
  5.11 Interface between Mobile Station and Base
       Station System (Um-interface)
  5.12 Interface between the MSC and its associated
       GCR (I-interface)
  5.13 Interface between MSC/VLR and SGSN
       (Gs-interface) $(GPRS)$
  5.14 Interface between SGSN and HLR (Gr-interface)
       $(GPRS)$
  5.15 Interface between SGSN and GGSN
       (Gn- and Gp-interface) $(GPRS)$
  5.16 Interface between SGSN and BSS
       (Gb-interface) $(GPRS)$
  5.17 Signalling Path between GGSN and HLR
       (Gc-interface) $(GPRS)$
  5.18 Interface between SGSN and EIR (Gf-interface)
       $(GPRS)$
  5.19 Interface between MSC and SIWFS (K-Interface)
       - $(SIWF)$
  5.20 Interface between MSC and GMLC (Lg-interface)
       $(LCS)$
  5.21 Interface between MSC and SMLC (Ls-interface)
       $(LCS)$
  5.22 Interface between GMLC and HLR (Lh-interface)
       $(LCS)$
  5.23 Interface between SMLC and MSC/VLR
       (Ls-interface) $(LCS)$
  5.24 Interface between BSC and SMLC (Lb-interface)
       $(LCS)$
  5.25 Interface between Peer SMLCs (Lp-interface)
       $(LCS)$
  5.26 Interface between BTS and LMU (Um-interface)
       $(LCS)$
6 Interface to external networks
  6.1 Interface between the fixed networks and
      the MSC
  6.2 Interface between GGSN and external data
      networks (Gi-interface) $(GPRS)$
  6.3 Interface between GMLC and external LCS Client
      (Le-interface) $(LCS)$
Annex A (informative): Document change history
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