The present disclosure provides a resource mapping method, a resource determination method, a network side device and a UE. The resource mapping method for the network side device includes: determining resource mapping configuration information about a PDCCH; and mapping each VRB to a corresponding PRB in accordance with the resource mapping configuration information, and transmitting the resource mapping configuration information to a UE, so as to enable the UE to acquire a bandwidth to which VRBs map in a distributed manner in accordance with one or more configuration parameters in the resource mapping configuration information.