Universal Mobile Telecommunications System (UMTS); Bandwidth And Resource Savings (BARS) and speech enhancements for Circuit Switched (CS) networks (V15.0.0; 3GPP TR 23.977 version 15.0.0 Release 15)
The objective of this technical report is to identify the full set of requirements for bandwidth and resource savings and improved speech quality@ with specific consideration to networks supporting A/Gb mode and the bearer independent circuit-switched core network (BICN). The different architectural solutions to meet these requirements will be assessed Consideration shall be made to existing architectures and solutions to provide harmony between 2G nodes@ UMTS nodes and external networks (PSTN/ISDN). Backward compatibility to existing solutions and ease of network introduction/upgrade shall be given high importance