| 摘要 |
The present application relates to a method for generating a combined PRACH time-domain signal containing a plurality of Physical Random Access Channel (PRACH) preamble sequences in a system comprising a first Inverse Fast Fourier Transform (IFFT) unit and a second IFFT unit, the method comprising: generating a first set of PRACH preamble sequences, the first set of PRACH preamble sequences comprising a first plurality of PRACH preamble sequences; generating a second set of PRACH preamble sequences, the second set of PRACH preamble sequences comprising a second plurality of PRACH preamble sequences; converting each of the first plurality of PRACH preamble sequences into a respective frequency-domain signal and adding the respective frequency-domain signals to form a first composite frequency-domain signal; converting each of the second plurality of PRACH preamble sequences into a respective frequency-domain signal and adding the respective frequency-domain signals to form a second composite frequency-domain signal; converting the first composite frequency-domain signal into a first composite time-domain signal using the first IFFT unit; converting the second composite frequency-domain signal into a second composite time-domain signal using the second IFFT unit; adding the first and second composite time-domain signals to form the combined PRACH time-domain signal containing the first plurality of PRACH preambles and the second plurality of PRACH preambles. |
