Method and apparatus for integrating different radio access technologies using carrier aggregation

A long term evolution (LTE) base station comprising:

• a processor:
• and
• a transceiver,
• the processor and the transceiver are configured to transmit first LTE data to a wireless transmit/receive unit (WTRU) using LTE frequencies, wherein the LTE data is at a time defined by LTE transmission time interval (TTI) boundaries,
• the processor is further configured to map an LTE class of second LTE data to an access class associated with IEEE 802.11e access, and
• the processor is further configured to transmit the second LTE data to the WTRU using an IEEE 802.11 associated frequency, wherein a transmission time of the second LTE data is based on an LTE TTI boundary after sensing that an IEEE 802.11 associated frequency is not busy.