Method and apparatus for asynchronous OFDMA/SC-FDMA

摘要

Various disclosed embodiments include methods and systems for communication in a wireless communication system. A method comprises receiving a signal corresponding to a plurality of modulated signals, each of the plurality of modulated signals corresponding to a unique electronic device. The method comprises filtering the received signal with a plurality of filters, each of which is matched to a corresponding filter in a respective electronic device to obtain a filtered signal for the respective electronic device. The method comprises performing a fast Fourier transform (FFT) operation on the filtered signal to obtain demodulated data corresponding to the respective electronic device.

主权项

1. A method of data transmission in a wireless communication system, the method comprising:
at a wireless electronic device:
generating a signal corresponding to resource blocks assigned to the electronic device;filtering the signal that corresponds to the resource blocks assigned to the electronic device with a spectrum shaping filter to reduce side lobe leakage in an adjacent frequency band to produce a filtered signal; andtransmitting the filtered signal to a receiver in the communication system in a timeslot provided by a scheduler coupled to the receiver, the timeslot being independently determined with respect to other electronic devices communicating with the receiver,wherein a bandwidth of the spectrum shaping filter corresponds to a total width of the resource blocks assigned to the electronic device.