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Node B Application Protocol (NBAP)

The Node B Application Protocol (NBAP) by Aricent enables OEMs to build Node B and Radio Network Controller (RNC) nodes faster and at lower cost.

The Node B application part (NBAP) is a control plane protocol used at the Iub interface and carries signaling traffic to manage the logical resources at Node B. It forms the basis for radio network control signaling between Node B and RNC and handles all procedures between the two elements.

Aricent provides following packages for NBAP:

• Complete NBAP stack for RNC side.
• CODEC Library level interface for Node B and RNC with simplified APIs exposed to the application.

Stack Architecture

Aricent’ NBAP stack provides software message based interface with following components:

• NBAP Application
  NBAP application comprises of the user implementation of the RNC side functionality interfacing with NBAP Module.
  
  
• System Management Entity (SME)
  This interface is used by the SME for initialization of the NBAP layer. It is also used for statistics and traces management of the NBAP layer.
  
  
• SAAL(SSCF + SSCCP)
  It forms the transport layer for carrying the NBAP messages to peer entities.
  

Compliance

• NBAP at RNC
  • 3GPP 25.433 V5.10.0 Release 5
  • 3GPP 25.433 V4.6.0 Release 4
  • 3GPP 25.433 V3.8.0 Release 99
    
    
    
• NBAP at Node B
  
  • 3GPP 25.433 v5.2.0 Release 5
  • 3GPP 25.433 v4.6.0 Release 4
  • 3GPP 25.433 v3.8.0 Release 99
    
    
    

Last updated : March 9, 2006