| 摘要 |
PROBLEM TO BE SOLVED: To provide techniques to flexibly support different bandwidths in a wireless communication system.SOLUTION: Values of various parameters such as a fast Fourier transform (FFT) size, a cyclic prefix length and a sample rate are selected based on the design bandwidth. The design bandwidth is associated with K total subcarriers. Different operating bandwidths are supported by selecting different numbers of usable subcarriers. A transmitter and a receiver perform processing for a transmission using the same FFT size, cyclic prefix length, and sample rate regardless of the selected operating bandwidth. The system uses different operating bandwidths and/or different parameter values (e.g., FFT sizes) for different portions of a transmission (e.g., a preamble and a main body of the transmission). |
