VoLTE Test Solutions
IMS (IP multimedia subsystem) is the enabler for VoLTE, SMS over IMS and new value-adding services.
Transmitting voice over LTE (VoLTE) with acceptable quality requires the right mechanisms and architectures in both the radio and the core network. This affects LTE networks as well as conventional 2G and 3G networks since LTE services will need to coexist with legacy networks until LTE coverage is ubiquitous. Another consideration is the mobility of voice subscribers, because a voice call that is initiated within LTE coverage must not be dropped when the subscriber moves out of LTE coverage into an existing 2G or 3G network.
When you develop an LTE device, you will need to test the following key areas: the functional aspects of your device (LTE attach, IMS registration, etc.), how well it performs in a noisy or faded environment, what IP traffic is taking place and how this affects battery life, and whether it can meet 3GPP and mobile network operator conformance requirements.
If you deploy VoLTE in your network, you will need to verify the coverage and real-world performance of your network. Test and measurement solutions from Rohde & Schwarz cover all aspects of voice and IMS testing, from R&D and production to network optimization.
Solutions for
VoLTE Functional Testing
Modern mobile devices include multiple features and functions that require IP connectivity. IMS, VoLTE and RCS functional testing and complete end-to-end communications testing help you optimize your VoLTE design to ensure best user experience. Does your VoLTE device meets user expectations?
VoLTE Conformance Testing
VoLTE devices need to comply with the respective 3GPP standards and network operator specifications before they reach the market. Do your VoLTE devices meet the required standards? Do your VoLTE devices conform to the test cases specified by GCF, PTCRB and network operators?
VoLTE Performance Testing
Maximum VoLTE performance is essential for the mobile device user experience which requires, for example, to find the right balance between power consumption and voice performance. What about battery life when utilizing VoLTE? And what about VoLTE performance when concurrent services such as eMBMS are ongoing?
Audio Quality Testing
Acoustic measurements are important in order to ensure the acoustic transmission quality of mobile devices. What about audio quality when utilizing VoLTE? Will it be better than existing voice services?
Voice in the Field Testing
Maintaining and improving quality levels of voice services is decisive for mobile network operators, particularly when moving to voice over LTE (VoLTE) that is based on the IP multimedia subsystem (IMS). How will your mobile device work in real-world scenarios in the live network?
