RESOURCE BLOCK BASED MULTICARRIER MODULATIONS FOR AGILE SPECTRUM

摘要

A resource block (RB)-based multicarrier modulation (MCM) transmitter and receiver structure for spectral agile systems are disclosed. The transmitter and the receiver are capable of sharing opportunistically available and non-contiguous channels with other users. The RB-MCM partitions the available spectrum, contiguous or non-contiguous, into multiple RBs (same or different sizes), applies a baseband MCM or single carrier modulation, or coded single carrier or multicarrier schemes in each RB with a type of spectral leakage reduction technique, and applies RB modulation for each RB to modulate the signal from baseband to the frequency band of that RB. At the receiver, the received signal may be filtered and RB demodulation may be applied to put each RB signal in baseband and a baseband multicarrier or single carrier or coded single carrier or coded multicarrier demodulation may be applied to each RB signal. Different RBs may use different modulation schemes.

主权项

1. A method for performing multicarrier modulation in a wireless communication device, the method comprising:
partitioning available spectrum into a plurality of resource blocks (RBs), wherein each RB of the plurality of RBs comprises a plurality of subcarriers; applying a modulation scheme on a block of input symbols on each of the plurality of RBs separately, wherein the modulation scheme is different for at least one of the plurality of RBs; filtering each modulated block of input symbols on each of the plurality of RBs separately to form a plurality of per-RB baseband filtered signals; performing RB modulation on each of the plurality of per-RB baseband filtered signals separately to modulate each per-RB baseband filtered signal into the frequency band of each RB to form per-RB multicarrier modulated signals; summing the per-RB multicarrier modulated signals for transmission; and transmitting the summed per-RB multicarrier modulated signals.