The document provides an overview of NBAP (Node B Application Part) procedures. It discusses:
1. The Iub interface between RNC and Node B and how NBAP is used for signaling.
2. The main functions of NBAP including cell configuration management, transport channel management, and radio link management.
3. The different types of NBAP procedures including common procedures for tasks like cell setup/deletion and dedicated procedures for radio link management.
4. Key elements of NBAP communication like messages, information elements, and error handling.