Enhanced polar code constructions by strategic placement of CRC bits
First Claim
1. A method of wireless communications, comprising:
- generating a codeword by encoding a sequence of information bits based on a polar code, wherein generating the codeword comprises;
determining a plurality of locations within the polar code having a rate of 1;
generating error detection codes based on portions of the sequence of information bits, the portions being defined by the plurality of locations within the polar code having a rate of 1;
inserting the error detection codes in the sequence of information bits at locations corresponding to the plurality of locations within the polar code having a rate of 1; and
generating the codeword based on the sequence of information bits, including the error detection codes, and the polar code; and
transmitting the codeword over a wireless channel.
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Abstract
Certain aspects of the present disclosure relate to techniques and apparatus for improving decoding latency and performance of Polar codes. An exemplary method generally includes generating a codeword by encoding information bits, using a multi-dimensional interpretation of a polar code of length N, determining, based on one or more criteria, a plurality of locations within the codeword to insert error correction codes generating the error correction codes based on corresponding portions of the information bits, inserting the error correction codes at the determined plurality of locations, and transmitting the codeword. Other aspects, embodiments, and features are also claimed and described.
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Citations
13 Claims
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1. A method of wireless communications, comprising:
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generating a codeword by encoding a sequence of information bits based on a polar code, wherein generating the codeword comprises; determining a plurality of locations within the polar code having a rate of 1; generating error detection codes based on portions of the sequence of information bits, the portions being defined by the plurality of locations within the polar code having a rate of 1; inserting the error detection codes in the sequence of information bits at locations corresponding to the plurality of locations within the polar code having a rate of 1; and generating the codeword based on the sequence of information bits, including the error detection codes, and the polar code; and transmitting the codeword over a wireless channel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of wireless communications, comprising:
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generating a codeword by encoding a sequence of information bits based on a polar code, wherein generating the codeword comprises; determining a plurality of locations within the polar code where a correct decoding path falls off a decoding list associated with the polar code; generating error detection codes based on portions of the sequence of information bits, the portions being defined by the plurality of locations; inserting the error detection codes in the sequence of information bits corresponding to the determined plurality of locations in the polar code; and generating the codeword based on the sequence of information bits, including the error detection codes, and the polar code; and transmitting the codeword over a wireless channel. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification