What is BP (Bandwidth part)?

Bandwidth Part (BWP) is set up by a bunch of contiguous Resource Blocks for a given numerology Subcarrier spacing in bandwidth part on a given carrier. In 5G, an asset is allocated to UE inside a BWP active for that UE. The BWP concept in 5G was utilized to decrease power utilization of UE, because there is no requirement for a UE to search the entire Bandwidth for its information/signalling.