Scrambling sequence design for embedding UE ID into frozen bits for DCI blind detection

A user equipment device (UE), comprising:

• a radio;
• and
• a processor coupled to the radio;
• wherein the UE is configured to:
• receive a first polar coded message in a wireless manner from a base station, the first polar coded message comprising an encoding of a plurality of frozen bits and a plurality of information bits;
• implement a decoding procedure on the first polar coded message, wherein, in implementing the decoding procedure, the UE is configured to:
• begin a decode of the first polar coded message to produce a subset of the frozen bits;
• perform a cross-correlation calculation based on the subset of the frozen bits and a corresponding subset of reference bits, wherein the reference bits are based on an identifier of the UE;
• abort the decoding procedure based on a determination that the result of the cross-correlation calculation is below a cross-correlation threshold.

A method for decoding control information, comprising:

• by a user equipment device (UE):
• receiving a first polar coded message in a wireless manner from a base station, the first polar coded message comprising an encoding of a plurality of frozen bits and a plurality of information bits;
• implementing a decoding procedure on the first polar coded message by:
• beginning decoding the first polar coded message to produce a subset of the frozen bits;
• performing a cross-correlation calculation based on the subset of the frozen bits and a corresponding subset of reference bits, wherein the reference bits are based on an identifier of the UE;
• aborting the decoding procedure based on a determination that the result of the cross-correlation calculation is below a cross-correlation threshold.