Method and device for conditionally adding and changing cell
摘要
說明書
The baseband processor 5-20 performs a function of conversion between a baseband signal and a bitstream according to a physical layer protocol of a system. For example, when data is transmitted, the baseband processor 5-20 generates complex symbols by encoding and modulating a transmission bitstream. In addition, when data is received, the baseband processor 5-20 reconstructs a reception bitstream by demodulating and decoding a baseband signal provided from the RF processor 5-10. For example, in a case where an orthogonal frequency division multiplexing (OFDM) scheme is applied, when data is transmitted, the baseband processor 5-20 generates complex symbols by encoding and modulating a transmission bitstream, maps the complex symbols to subcarriers, and then configures OFDM symbols through inverse fast Fourier transform (IFFT) calculation and cyclic prefix (CP) insertion. In addition, when data is received, the baseband processor 5-20 divides a baseband signal provided from the RF processor 5-10, by the units of OFDM symbols, reconstructs signals mapped to subcarriers, through fast Fourier transform (FFT), and then reconstructs a reception bitstream through demodulation and decoding.
