Patent ID: 8274880

Claim:
A method comprising: transmitting OFDM symbols using a plurality of sub-carriers within an OFDM band; the OFDM symbols collectively containing diversity channels and sub-band channels, each diversity channel utilizing a plurality of sub-carriers distributed across the OFDM band, and each sub-band channel utilizing a contiguous set of sub-carriers within the OFDM band; at least some of the OFDM symbols simultaneously including sub-carriers utilized by a sub-band channel and sub-carriers utilized by a diversity channel; defining a slot to contain an N×M resource block space by dividing the plurality of OFDM sub-carriers into N≧2 sub-bands in frequency transmitted over M≧1 sub-slots in time, each sub-slot containing L≧1 OFDM symbol; and allocating each resource block in its entirety for one of diversity channel use or sub-band channel use.