METHOD AND DEVICE FOR FREQUENCY DOMAIN TRANSMISSION

摘要

Embodiments of the present invention disclose a central baseband processing unit CBPU, including a switching module and at least one base band unit BBU and further including a resource mapping module. The resource mapping module is configured to perform resource block demapping for uplink frequency domain baseband signals obtained through FFT, and demultiplex signals of each user from corresponding subcarriers; the switching module is configured to transmit the signals of each user to the corresponding BBU; and the BBU is configured to process the received user signals. Correspondingly, embodiments of the present invention also disclose an RRU and a frequency domain transmission method. The technical solution provided in the present invention can improve transmission performance of a C-RAN system.