DCI Decoder

Decode or build DCI formats 0_0, 0_1, 1_0 and 1_1 (TS 38.212 §7.3.1, Rel-18). Field sizes follow your RRC configuration, including the §7.3.1.0 size alignment.

RRC configuration

Import from RRC text…

Paste RRCSetup / RRCReconfiguration / SIB1 in ASN.1 value notation (as Wireshark or a vendor log prints it)

Payload

DCI format / RNTI

Bit alignment of the hex

Payload (hex, or binary with 0b prefix) — CRC excluded

Format structure

Fields

Edit any value to build a payload — the hex updates. Fields map MSB-first from bit a₀ in the order listed (TS 38.212 §7.3.1).

DCI Decoder

RRC configuration

Payload

Format structure

Fields

Allocation & transport block size

DCI sizes & alignment (§7.3.1.0)