Control plane method and apparatus for wireless local area network (wlan) integration in cellular systems

A method comprising:

• receiving, by a wireless transmit/receive unit (WTRU), a radio resource control (RRC) reconfiguration message from a cellular network, the RRC reconfiguration message including traffic steering parameters for a wireless local area network (WLAN), the parameters including radio bearer parameters indicating whether a radio bearer is a cellular only, WLAN only or split cellular and WLAN radio bearer;
• in response to the RRC reconfiguration message, transmitting, by the WTRU, an RRC reconfiguration complete message to the cellular network;
• and
• transmitting, by the WTRU, WLAN only or split radio bearers over the WLAN.

A cellular network node comprising:

• at least one transceiver;
• and
• a processor operatively coupled to the at least one transceiver,
• the at least one transceiver and the processor being configured to transmit a radio resource control (RRC) reconfiguration message to a wireless transmit/receive unit (WTRU), the RRC reconfiguration message including traffic steering parameters for a wireless local area network (WLAN), the parameters including radio bearer parameters indicating whether a radio bearer is a cellular only, WLAN only or split cellular and WLAN radio bearer,
• the at least one transceiver and the processor being configured, in response to the RRC reconfiguration message, to receive an RRC reconfiguration complete message to the cellular network, and
• the processor is configured to receive WLAN only or split radio bearers sent via the WLAN.