Terminology » LTE DCI (Downlink Control Information) Formats Explained

LTE DCI (Downlink Control Information) Formats Explained

lte downlink dci control information scheduling

This page describes LTE DCI (downlink control information) formats, including DCI-0, DCI-1, DCI-1A, DCI-1B, DCI-1C, DCI-1D, DCI-2, DCI-2A, DCI-3, and DCI-3A.

LTE DCI FormatUse Case
DCI-0Uplink scheduling assignment
DCI-1Downlink scheduling for 1 PDSCH codeword (SISO/SIMO modes)
DCI-1ACompact version of format 1 scheduling for 1 PDSCH codeword or Dedicated preamble assignment to initiate random access
DCI-1BVery compact DL scheduling for 1 PDSCH code-word used in MIMO mode No.6
DCI-1CVery compact DL scheduling for paging OR system information
DCI-1DCompact DL (Downlink) scheduling for 1 PDSCH code-word including MIMO precoding+power offset information needed for Multi-User MIMO
DCI-2DL Scheduling assignment for MIMO including closed loop spatial multiplexing
DCI-2ADL scheduling assignment for MIMO including open loop spatial multiplexing
DCI-3Transmit power control (TPC) information for PUCCH/PUSCH with 2-bit power adjustment value
DCI-3ATPC information for PUCCH/PUSCH with 1-bit power adjustment

LTE DCI Contents

The following dropdown selection will help browse through all the LTE DCI format contents. It includes DCI-0, DCI-1, DCI-1A, DCI-1B, DCI-1C, DCI-1D, DCI-2, DCI-2A, DCI-3, and DCI-3A. (Note: Functionality of the “dropdown selection” can’t be replicated in plain markdown)