scope:

This Recommendation specifies the framework and protocols for signalling network analysis and optimization in voice over long term evolution (VoLTE) networks, which are implemented with signalling network analysis and optimization systems. The signalling network analysis and optimization system is a network management system that consists of signalling collecting component, signalling network analysis component, signalling network optimization component, and artificial intelligence (AI) / machine learning (ML) assistance component, aiming to implement signalling collecting and signalling network analysis, perform optimization on network entities and signalling exchange, and provide the results of signalling network analysis and optimization to the user of signalling network analysis and optimization, in the context of VoLTE network.

The following aspects of signalling network analysis and optimization are addressed in this Recommendation:

• Framework which includes the overview and component design of signalling network analysis and optimization system.

• Interfaces (IF) and protocols which include the interfaces and protocols of signalling collecting, signalling network analysis, signalling network optimization, AI/ML and users.

• Service procedures which include the procedures of signalling collecting, signalling network analysis, signalling network optimization, AI/ML and users.

• AI/ML-assisted functions which include the functions of intelligent signalling collecting, intelligent signalling network analysis, intelligent signalling network optimization, intelligent system self-management and self-orchestration, external AI/ML platform connecting and external AI/ML capability mapping.

• Security considerations which include signalling collecting security, signalling network analysis security, signalling network optimization security, AI/ML related security and user privacy.