Patent ID: 8582525

Claim:
A method comprising: transmitting a first message destined for a server, by a wireless device to a base station, over a first plurality of subcarriers of a first uplink carrier in a plurality of configured uplink carriers, wherein there is no guard band between any two subcarriers in said first plurality of subcarriers; receiving a second message originating from said server, by said wireless device, from said base station on a downlink carrier, said second message responding to said first message, said downlink carrier corresponding to said first uplink carrier; transmitting at least one data packet destined for said server, by said wireless device to said base station over a second plurality of subcarriers of said first uplink carrier, wherein there is no guard band between any two subcarriers in said second plurality of subcarriers, said at least one data packet comprising a first portion of content destined for said server; receiving at least one packet originating from said server, by said wireless device from said base station on said downlink carrier in response to said at least one data packet; receiving an activation command originating from said base station on said downlink carrier, at least one additional uplink carrier in said plurality of configured uplink carriers activating in response to said activation command; and transmitting a plurality of data packets destined for said server, by said wireless device, to said base station over said first uplink carrier and at least one of said at least one additional uplink carrier over a third plurality of subcarriers, wherein there is at least one guard band between at least two subcarriers in said third plurality of subcarriers, said plurality of data packets comprising a second portion of said content destined for said server.