The invention discloses an RCC, an RRS and a distributed base station system. The RCC is provided with N functional modules, and links of a first type and/or a second type are built between each functional module and M RRSs (radio remote systems). The links of the first type are used for transmitting control plane data, and the links of the second type are used for transmitting the data of a data plane, wherein N and M are integers greater than or equal to one. The RRS is provided with a user radio resource control distribution intersection module, and a link of the first type or the second type is built between the user radio resource control distribution intersection module and a radio cloud center RRC. The link of the first type is used for transmitting the data of a control plane, and the link of the second type is used for transmitting the data of the data plane. The distributed base station comprises the above RCC and M RRSs.