Node-B Application Part (NBAP)

Functions

• Cell Configuration Management
  - Gives CRNC possibility to manage cell configuration information in a Node-B
• Common Transport Channel Management
  - Gives the CRNC the ability to manage configuration of Common Transport Channels in a Node-B
• System Information Management
  -Gives CRNC the ability to manage scheduling of System Information to be broadcast in a cell
• Resource Event Management
  - Gives the Node-B the ability to inform CRNC about status of Node-B resources
• Configuration Alignment
  - Gives CRNC and Node-B the ability to verify that both nodes have same information on configuration of radio resources
• Measurements on Common Resources
  - Allows CRNC to initiate measurements in Node-B
  - Allows Node-B to report result of measurements
• Synchronization Management (TDD)
  - Allows CRNC to manage synchronization of a TDD cell in a Node-B
• Radio Link Management
  - Allows CRNC to manage radio links using dedicated resources in a Node-B
• Radio Link Supervision
  - – Allows CRNC to report failures and restorations of a Radio Link
• Measurements on Dedicated Resources
  - Allows CRNC to initiate measurements in Node-B
  - Also allows Node-B to report result of measurements
• DL Power Drifting Correction (FDD)
  - Allows CRNC to adjust DL power level of one or more Radio Links in order to avoid DL power drifting between Radio Links
• Reporting general error situations
  - Allows reporting of general error situations, for which function specific error messages have not been defined
• NBAP common procedures
  - Request initiation of a UE context for a specific UE in Node-B or are not related to a specific UE
  - NBAP common procedures also incorporate logical O&M procedures
• NBAP dedicated procedures
  - Related to a specific UE context in Node-B
  - UE context is identified by a UE context identity