EncodixOnline - Decoder: 3GPP TS 44.018 V15.4.0 (2018-12) [download spec]

The online version of the Encodix multistandard 5G/LTE/3GPP/WiMax/cdma2000 encode/decode C code generator (see the list of available decoders).

Decoder: Mobile radio interface layer 3 specification - Radio Resource Control (RRC)

Go back to main page

Click on the fields below to see the related bits evidenced on the right:

ERRORS:

Error: please, click on the I am not a robot checkbox.

No binary data

Instructions

This decoder decodes messages specified in the 3GPP TS 44.018 V15.4.0 (2018-12) [download spec], Mobile radio interface layer 3 specification - Radio Resource Control (RRC) specification.

The messages are divided among the following message sets. The right message set must be selected before submitting the binary data to be decoded.

Downlink	These messages are sent from the network to the mobile station. They are identified by a 4 bit protocol discriminator and 8 bit message type. See for example the Handover Command message (TS44.018, 9.1.5): This link decodes a sample HANDOVER COMMAND.
Downlink with L2-pseudo length	These messages are sent from the network to the mobile station. They begin with a L2 Pseudo Length octet, followed by a 4 bit protocol discriminator and 8 bit message type. See for example the System information type 4 message (TS44.018, 9.1.36): This link decodes a sample SYSTEM INFORMATION TYPE 4.
RR short protocol discriminator	These messages are sent from the network to the mobile station. They are encoded using a 1-bit long short protocol discriminator and a 5-bit message type. See for example the Notification/FACCH message (TS44.018, 9.1.21a): The message above is expressed using the CSN.1 notation (see csn1.info for details on that notation). This link decodes a sample Notification/FACCH.
Uplink	These messages are sent from the mobile station to the network. They are identified by a 4 bit protocol discriminator and 8 bit message type. See for example the Assignment complete message (TS44.018, 9.1.3): The message above is expressed using the CSN.1 notation (see csn1.info for details on that notation). This link decodes a sample Assignment Complete.

Binary input field

The binary input field supports the following format:

0/1	Numbers 0 and 1 are inserted as bits. So 1100 is encoded as four bits 1, 1, 0 and 0.
dN	where N is a decimal value in range 0..255; it is encoded as an 8 bit value. For example, d240 will be encoded as 11110000.
xN	where N is an hex value in range 0..FF; it is encoded as an 8 bit value. For example, xF0 will be encoded as 11110000.
d{K}N / x{K}N	Same as dN/xN but encoded in K bits. For example, d{3}2 will be encoded as 010.