Learn 2G - GSM
AuthorBlogTelecom SecurityGeek Store
  • Intro
  • Standards
    • Timeline
    • PCM30
    • PCM24
  • Architecture
    • ✅GSM Radio Stack
      • Layer 1 - Radio
      • Layer 2 - LAP-Dm
      • Layer 3 − GSM signalling
    • MS - Mobile Station
      • ME - Mobile Equipment
        • Baseband
      • SIM Card - Subscriber Identity Module
    • BSS - Base Station Subsystem
      • 🟢BTS - Base Transceiver Station
      • ✅BSC - Base Station Controller
    • NSS - Network Switching Subsystem
      • MSC - Mobile Switching Center
      • HLR - Home Location Register
      • VLR - Visitor Location Register
      • AuC - Authentication Center
      • EIR - Equipment Identity Register
      • VMS - Voice Mail Subsystem
      • IWF - Interworking Function
    • OSS - Operation Support Subsystem
      • OMC - Operation and Maintence Center
      • NMC - Network Managment Center
    • ABC - Administration & Billing Center
  • GSM Channels
    • Intro
    • Traffic Channels
      • TCH/F
      • TCH/H
    • Signalling Channels
      • Broadcast Channels
        • FCCH - Frequency Correction Channel
        • ✅SCH - Synchronization Channel
        • ✅BCCH - Broadcast Control Channel
        • ✅CBCH - Cell Broadcast Channel
      • Common Control Channels
        • Point-to-Multipoint Channels
          • PCH - Paging Channel
          • RACH - Random Access Channel
          • AGCH - Access Grant Channel
      • Dedicated Channels
        • ✅Point-To-Point Signalling
          • ✅SDCCH - Stand-alone Dedicated Control Channel
          • ✅SACCH - Slow Associated Control Channel
          • ✅FACCH - Fast Associated Control Channel
  • GSM Interfaces
    • ✅A interface
    • ✅A-ter interface
    • ✅A-bis interface
    • ✅Um interface
  • PLMN - Public Land Mobile Network
    • Cell Id
    • LAI - Location Area Identification
    • ARFCNs
  • System Information Messages
    • ✅System information-1(SI1)
    • ✅System information-2(SI2)
    • System information-2bis(SI-2bis)
    • System information-2ter(SI-2ter)
    • System information-2 Quarter (SI-2Quater)
    • ✅System information-3 (SI3)
    • System information-4 (SI4)
    • System information-5 (SI5)
    • System information-6 (SI6)
    • System information-7 (SI7)
    • System information-8 (SI8)
    • System information-9 (SI9)
    • System information-13 (SI13)
  • Docs
    • Page 2
  • Paging Requests
    • Paging request type 1
    • Paging request type 2
  • Messages for Mobility Management
    • Intro
    • ✅Registration messages
      • IMSI DETACH INDICATION
      • LOCATION UPDATING ACCEPT
      • LOCATION UPDATING REJECT
      • LOCATION UPDATING REQUEST
    • Security messages
    • Connection management messages
    • Miscellaneous message
Powered by GitBook
On this page

Was this helpful?

  1. PLMN - Public Land Mobile Network

LAI - Location Area Identification

PreviousCell IdNextARFCNs

Last updated 7 months ago

Was this helpful?

are controller by VLH

Location Area Identification (LAI) is a unique code used in mobile networks to identify a specific location area within a Public Land Mobile Network (PLMN). It consists of:

  • Mobile Country Code (MCC): Identifies the country.

  • Mobile Network Code (MNC): Identifies the network within the country.

  • Location Area Code (LAC): Identifies the specific location area within the network.

LAI is crucial for managing the location and registration of mobile subscribers when they move between different areas, ensuring seamless connectivity and effective resource allocation.