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Polar code successive cancellation list decoding

A polar code, bit-by-bit technology, applied to other decoding technologies, using linear codes for error correction/detection, encoding, etc., can solve problems such as inconsistency and inaccurate probability measurements

Pending Publication Date: 2019-02-05
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, probability measurements are not exact and if the measured (evaluated) probability values ​​are close to each other (but still not the same and thus in order), it can result in wrong paths being picked due to errors in the probabilities

Method used

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  • Polar code successive cancellation list decoding
  • Polar code successive cancellation list decoding
  • Polar code successive cancellation list decoding

Examples

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Embodiment Construction

[0030] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concept are shown. This inventive concept may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and these embodiments will fully convey the scope of the inventive concept to those skilled in the art. Throughout the description, like reference numerals refer to like elements. Any steps or features illustrated by dashed lines should be considered optional.

[0031] figure 1 is a schematic diagram illustrating a communication network 100 in which embodiments presented herein may be applied. The communication network 100 includes an information encoder 110 and an information decoder 200 . The information encoder 110 is configured to ...

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Abstract

A method is performed by an information decoder. The method comprises obtaining (S102) an encoded sequence having been encoded using a polar code. The method comprises successively decoding (S104) theencoded sequence into the successive bits of the decoded sequence. Successively decoding the encoded sequence comprises performing a threshold check (S106) for evaluating a bit uncertainty criterion.Successively decoding the encoded sequence comprises branching (S108) the decoded sequence into two candidate decoded sequences whenever the threshold check fails.

Description

technical field [0001] Embodiments presented herein relate to methods, information decoders, computer programs and computer program products for decoding encoded sequences into decoded sequences. Background technique [0002] In a communication network, it can be challenging to achieve good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the communication network is deployed. [0003] For example, in digital communications, data to be communicated from a sender to a receiver may be divided into smaller data segments that are sent in packets. These data segments are provided with information on how the data protocol used to move the data from the sender to the receiver should map the packets and in some cases analyze whether the data content of the packets is correct. This information is usually predictable or known by the receiver. For example, when using the Internet Protocol (IP), an IP-packet header is r...

Claims

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Application Information

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IPC IPC(8): H03M13/13
CPCH03M13/13H03M13/3977H03M13/3905H03M13/3746H03M13/37
Inventor M.西基克
Owner TELEFON AB LM ERICSSON (PUBL)
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