Registration for device-to-device (D2D) communications
A dual-radio access technology (dual-RAT) wireless transmit/receive unit (WTRU) may transmit, over a cellular RAT, a registration message that includes a wireless local area network (WLAN) device identifier (ID) for a WLAN associated with the dual-RAT WTRU. A transceiver of the dual-RAT WTRU may receive, from the cellular network over the cellular RAT, assistance information that includes a security key for the WLAN. A processor of the dual-RAT WTRU may perform, over a WLAN RAT, device-to-device D2D direct discovery using the WLAN device ID and the security key for the WLAN.
1. A method comprising:
transmitting, by a dual-radio access technology (dual-RAT) wireless transmit/receive unit (WTRU) over a cellular RAT, a registration message to a cellular network, wherein the registration message includes a wireless local area network (WLAN) device identifier (ID) associated with the dual-RAT WTRU for a WLAN;
receiving, from the cellular network over the cellular RAT, a response message authorizing the dual-RAT WTRU for device-to-device (D2D) communications;
receiving, from the cellular network over the cellular RAT, assistance information that includes a security key for the WLAN, wherein the assistance information is received from the cellular network on a condition that the dual-RAT WTRU is proximate to a WTRU; and
performing, over a WLAN RAT, D2D direct discovery using the WLAN device ID and the security key for the WLAN.
2. The method of claim 1 , wherein the cellular RAT is for the cellular network and the WLAN RAT is for the WLAN.
3. The method of claim 1 , wherein the cellular network is a third generation partnership project (3GPP) network and the WLAN is an 802.11 network.
4. A dual-radio access technology (dual-RAT) wireless transmit/receive unit (WTRU) comprising:
a transceiver configured to transmit, over a cellular RAT, a registration message to a cellular network, wherein the registration message includes a wireless local area network (WLAN) device identifier (ID) associated with the dual-RAT WTRU for a WLAN;
the transceiver configured to receive, from the cellular network over the cellular RAT, a response message authorizing the dual-RAT WTRU for device-to-device (D2D) communications;
the transceiver configured to receive, from the cellular network over the cellular RAT, assistance information that includes a security key for the WLAN, wherein the assistance information is received from the cellular network on a condition that the dual-RAT WTRU is proximate to a WTRU; and
a processor configured to perform, over a WLAN RAT, D2D direct discovery using the WLAN device ID and the security key for the WLAN.
5. The dual-RAT WTRU of claim 4 , wherein the cellular RAT is for the cellular network and the WLAN RAT is for the WLAN.
6. The dual-RAT WTRU of claim 4 , wherein the cellular network is a third generation partnership project (3GPP) network and the WLAN is an 802.11 network.