3.1.5.1 Receive Probe Request
When a Miracast Sink receives a Probe Request message, the Sink MUST send a Probe Response message [WF-P2P1.2] and include a WSC IE [WF-WSC2.0.2] Vendor Extension attribute (section 2.2.8) with a Capability Attribute (section 2.2.8.1) that indicates support for Miracast over Infrastructure.