BSSAP+ Stack

The BSSAP+ protocol stack is responsible for conducting non-GPRS procedures over the Gs interface, between the SGSN and the VLR. The BSSAP+ protocol stack from Aricent has been developed for the SGSN (Serving GPRS Support Node) side.

BSSAP+ Stack Architecture

Aricent’ BSSAP+ stack supports procedures like:

• Paging for non-GPRS services
  
• Location update for non-GPRS services
  
• Non-GPRS alert
  
• Explicit IMSI detach from GPRS and non-GPRS services
  
• Implicit IMSI detach from non-GPRS services
  
• VLR failure
  
• SGSN failure
  
• HLR failure
  
• MS Information
  
• MM Information
  
• Error handling
  
• Tunneling non-GSM Signaling
  

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Architecture

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Operation and Management Support

GPRS BSSAP+ product provides extensive operation & management support, and debugging assistance:

• Run-time control of capacity and configuration parameters
  
• Extensive statistics collection (API protocol, internal events and error statistics)
  
• Error/alarm reporting
  
• Multi-level tracing support (detailed and brief traces)
  
• Tracing levels can be modified at run-time to enable appropriate support for field level debugging
  
• Multi-level error reporting (critical, major and minor errors)
  

Conformance to Standards

• BSSAP+ (Gs interface)
  • 3GPP TS 29.018 V 5.3.0 Release 5
  • 3GPP TS 29.018 V4.4.0 Release 4
    
    
    

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