| 摘要 |
<p>Disclosed are a method, device, and system for processing a signal. The method comprises: generating a pilot code on the basis of the length of a frequency-domain resource allocated to a user; mapping the pilot code and user data information to the resource block allocated to the user, a generated user modulated data symbol being numbered as M1×(Nsymbol-2×C)/p, wherein Nsymbol is the number of orthogonal frequency division multiplexing (OFDM) symbols in a subframe, M1 is the length of the frequency-domain resource allocated to the user, p is an integer and p?1, and Z×C is the number of OFDM symbols not for use in transmitting the user data information; transforming a mapped frequency-domain signal into a time-domain signal, adding more cyclic preambles; and transmitting the time-domain signal. The present invention allows for correct demodulation over an extended distance (from five to 25 km), thus allowing coexistence of users of different ranges of coverage.</p> |
