VRB

Technical Explanation

Virtual Resource Blocks (VRBs) are the logical entities assigned to a UE by the scheduler in DCI. VRBs are mapped to physical PRBs either non-interleaved (VRB n maps directly to PRB n) or interleaved (VRB blocks are permuted across the bandwidth) to achieve frequency diversity against selective fading.

Key Functions

• Provides logical resource representation for data block scheduling
• Supports non-interleaved direct mapping for frequency-selective scheduling
• Supports interleaved block-interleaver mapping for frequency diversity