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.