Patent ID: 8687585

Claim:
A method of orthogonal frequency division multiple access (OFDMA) communication, the method comprising: transmitting a first downlink subframe in a first frequency band according to a first technology format, the first downlink subframe beginning at a first time and ending at a second time, the first downlink subframe comprising a preamble for synchronization, a downlink allocation table (DL-MAP) associated with the first downlink subframe, and an uplink allocation table (UL-MAP); transmitting at least one second downlink subframe also within the first frequency band according to a second technology format, the at least one second downlink subframe beginning after the second time and ending at a third time; receiving a first uplink subframe in a second frequency band according to the first technology format, the first uplink subframe beginning after the third time and ending at a fourth time; and receiving at least one second uplink subframe also within the second frequency band according to the second technology format, the at least one second uplink subframe beginning after the fourth time and ending at a fifth time.