Learn 2G - GSM
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  • 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
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  1. GSM Interfaces

A interface

A interface connects a MSC and BSC Transcoder.

As data from User and Signaling

64 kbps per time slot

128 channels

Adaptation from ISDN-S2M interface, the interface can handle up to 8192 kbps of data.

This interface is crucial for ensuring efficient communication and data transfer between the MSC and BSC Transcoder, maintaining the integrity of both user data and signaling information.

The adaptation from the ISDN-S2M interface ensures compatibility and streamlined operations within the cellular network infrastructure.

Understanding the ISDN-S2M Interface in Cellular Networks

The ISDN-S2M interface is essential for seamless integration within cellular networks, connecting the Mobile Switching Center (MSC) and the Base Station Controller (BSC) Transcoder.

  • Data Handling: The interface supports high-speed data transfer at rates up to 8192 kbps.

  • Channel Capacity: It utilizes 128 channels, with each time slot capable of transmitting at 64 kbps.

  • Purpose: This ensures that both user data and signaling information are transmitted effectively, maintaining data integrity across the network infrastructure.

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Last updated 7 months ago

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