LTE-Advanced Pro - Additional modulation schemes for LTE
![R&S®CMW500 Wideband Radio Communication Tester, Front view R&S®CMW500 Wideband Radio Communication Tester, Front view](https://cdn.rohde-schwarz.com/image/products/test-and-measurement/wireless-communications-testers-and-systems/wireless-tester-network-emulator/cmw500/cmw500-wideband-radio-communication-tester-front-view-rohde-schwarz_200_6143_120_68_3.jpg)
This video demonstrates protocol analysis for direct discovery based on the R&S®CMW500 wideband radio communication tester. The R&S®CMW500 emulates the LTE network and the receiving device simultaneously, which enables the device under test to send the discovery message. Its logging capabilities makes the R&S®CMW500 ideal for protocol analysis of LTE D2D ProSe and direct discovery in particular.
Direct discovery is part of LTE device-to-device proximity services (LTE D2D ProSe) standardized in 3GPP Release 12. This feature enables a device to discover what is in its close proximity in a power efficient way.