CRC bits for joint decoding and verification of control information using polar codes
AssigneeQUALCOMM Incorporated
InventorsChanglong Xu, Joseph Binamira Soriaga, Jilei Hou
Life of this patent
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Abstract
Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.
Claims30
A method of wireless communication, comprising:
- generating cyclic redundancy check (CRC) information for an information block, wherein the information block comprises control information, wherein the CRC information comprises at least a total number of combined CRC bits equal to a sum of a first number of integrity check bits and a second number of CRC-aided successive-cancellation list (SCL) bits;
- encoding the information block, including the CRC information, utilizing polar coding to generate a polar code block;
- and
- providing the polar code block over a wireless air interface.
An apparatus configured for polar coding, the apparatus comprising:
- one or more processors;
- and
- one or more memories coupled to the one or more processors,
- wherein the one or more processors are configured to:
- generate cyclic redundancy check (CRC) information for an information block, wherein the information block comprises control information, wherein the CRC information comprises at least a total number of combined CRC bits equal to a sum of a first number of integrity check bits and a second number of CRC-aided successive-cancellation list (SCL) bits;
- encode the information block, including the CRC information, utilizing polar coding to generate a polar code block;
- and
- provide the polar code block over a wireless air interface.
A method of wireless communication operable at a user equipment (UE), comprising:
- receiving a polar code block comprising control information for the UE and cyclic redundancy check (CRC) information comprising at least a total number of combined CRC bits equal to a sum of a first number of integrity check bits and a second number of CRC-aided successive-cancellation list (SCL) bits;
- decoding the polar code block utilizing SCL decoding and the CRC information to produce an information block comprising the control information and the CRC information;
- and
- verifying an integrity of the control information utilizing the CRC information.
An apparatus configured for polar decoding, the apparatus comprising:
- one or more processors;
- and
- one or more memories coupled to the one or more processors,
- wherein the one or more processors are configured to:
- receive a polar code block comprising control information and cyclic redundancy check (CRC) information comprising at least a total number of combined CRC bits equal to a sum of a first number of integrity check bits and a second number of CRC-aided successive-cancellation list (SCL) bits;
- decode the polar code block utilizing SCL decoding and the CRC information to produce an information block comprising the control information and the CRC information;
- and
- verify an integrity of the control information utilizing the CRC information.
Dependencies are inferred from the claim text.