公开(公告)号：US11411796B1

公开(公告)日：2022-08-09

申请号：US17186844

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  June Namgoong ,  Taesang Yoo ,  Aaron Klein

IPC: H04L27/34 ,  H04L25/02 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may train a bitwise autoencoder neural network to obtain a constellation mapping. The WCD may determine a bit position ordering for bit positions of modulated symbols associated with the constellation mapping based at least in part on error protection levels of bit positions associated with the constellation mapping. The WCD may perform bit interleaving for one or more coded bits of a communication, based at least in part on the bit position ordering of the constellation mapping, to obtain one or more interleaved bits. The WCD may generate one or more modulated symbols for the communication by mapping the one or more interleaved bits using the constellation mapping. The WCD may transmit, to a receiver device, the one or more modulated symbols for the communication. Numerous other aspects are described.

公开(公告)号：US10340950B2

公开(公告)日：2019-07-02

申请号：US15682387

申请日：2017-08-21

Applicant: QUALCOMM Incorporated

Inventor： Aaron Klein ,  Abhinav Sridhar

IPC: H04L1/00 ,  H03M13/11 ,  G06F17/10 ,  H03M13/15

Abstract: Certain aspects of the present disclosure generally relate to techniques for encoding, generally including obtaining a payload, determining a set of internal nodes to distribute one or more non-payload bits to based, at least in part, on a target maximum likelihood (ML) search space size for internal nodes in a polar decoding tree, a search space size of each of the internal nodes, and an available number of the non-payload bits left to distribute, forming an information stream by interleaving the non-payload bits with bits of the payload by, for each internal node in the set of internal nodes, assigning one or more non-payload bits to one or more leaf nodes in a subtree rooted at that internal node in the set of internal nodes, and generating a codeword by encoding the information stream using a Polar code.