Patents by Inventor Gleb Vyacheslavovich Kalachev
Gleb Vyacheslavovich Kalachev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230419145Abstract: The present disclosure relates to the field of quantum computing, and in particular to simulating quantum circuits with a quantum simulator. The disclosure presents a processor for a quantum simulator. The processor is configured to perform a local search algorithm to determine a plurality of contraction expressions suitable to contract a respective tensor network into a determined contracted tensor network. The processor is further configured to determine, for each contraction expression, a contraction cost for contracting the respective tensor network based on a cost function, and to select the contraction expression with the lowest contraction cost to contract each tensor network into the determined contracted tensor network. The cost function is based on three parameters, which respectively indicate a required memory amount, a computational complexity, and a number of read-write operations required for contracting the respective tensor network into the determined contracted tensor network.Type: ApplicationFiled: September 6, 2023Publication date: December 28, 2023Inventors: Pavel Anatolyevich Panteleev, Gleb Vyacheslavovich Kalachev, Dingshun Lv, Manhong Yung
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Patent number: 11664928Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: GrantFiled: November 8, 2021Date of Patent: May 30, 2023Assignee: Futurewei Technologies, Inc.Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Publication number: 20220094474Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: ApplicationFiled: November 8, 2021Publication date: March 24, 2022Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Patent number: 11265014Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.Type: GrantFiled: January 22, 2020Date of Patent: March 1, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Yurii Sergeevich Shutkin, Pavel Anatolyevich Panteleev, Aleksey Alexandrovich Letunovskiy, Elyar Eldarovich Gasanov, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko
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Patent number: 11171742Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: GrantFiled: June 11, 2020Date of Patent: November 9, 2021Assignee: Futurewei Technologies, Inc.Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Patent number: 11095317Abstract: A base matrix of a rate-adaptive irregular QC-LDPC code is provided, the base matrix being formed by columns and rows having entries representing circulant submatrices. The columns of the base matrix are divided into at least one or more higher weight first columns and lower weight second columns and the rows of the base matrix are divided into first high weight rows corresponding to the high rate mother code and second low weight rows corresponding to the extension part related to the lower rate codes. A first submatrix formed by an intersection of entries of the second columns and entries of the first and the second rows is divided into first quadratic submatrices, wherein at most one entry in each column of each first submatrix and/or at most one entry in each row of each first submatrix is labelled.Type: GrantFiled: July 9, 2019Date of Patent: August 17, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Pavel Anatolyevich Panteleev, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Yurii Sergeevich Shutkin
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Publication number: 20200412480Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: ApplicationFiled: June 11, 2020Publication date: December 31, 2020Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Patent number: 10879927Abstract: A decoding method, an encoding method, a decoder and an encoder are disclosed. In an embodiment the decoding method includes receiving, at a receiver of a receiving side, signals from a transmitting side, the signals including a code word and decoding, at a decoder of the receiving side, the code word using a low density parity check (LDPC) code in which each n adjacent rows, n>1, in an extension part of a base parity check matrix (PCM) are orthogonal except for punctured information columns.Type: GrantFiled: May 14, 2018Date of Patent: December 29, 2020Assignee: Futurewei Technologies, Inc.Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Carmela Cozzo, Jie Jin
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Patent number: 10862626Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: GrantFiled: August 30, 2019Date of Patent: December 8, 2020Assignee: Futurewei Technologies, Inc.Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Patent number: 10735138Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: GrantFiled: May 1, 2018Date of Patent: August 4, 2020Assignee: Futurewei Technologies, Inc.Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Publication number: 20200162107Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.Type: ApplicationFiled: January 22, 2020Publication date: May 21, 2020Inventors: Yurii Sergeevich SHUTKIN, Pavel Anatolyevich PANTELEEV, Aleksey Alexandrovich LETUNOVSKIY, Elyar Eldarovich GASANOV, Gleb Vyacheslavovich KALACHEV, Ivan Leonidovich MAZURENKO
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Patent number: 10594339Abstract: A method and system for offset lifting is provided. In an embodiment, a method for encoding data includes receiving a K-bit source word input. The method also includes encoding the K-bit source word input according to a LDPC code, a lifting function, and a circulant size offset to generate an N-bit code word output. The circulant size and lifting function are determined according to an information length, a code rate, and a decoder. The method also includes storing the N-bit code word output in input/output memory.Type: GrantFiled: February 2, 2018Date of Patent: March 17, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Pavel Anatolyevich Panteleev, Wen Tong, Jiang Li, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy
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Publication number: 20200067527Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code.Type: ApplicationFiled: August 30, 2019Publication date: February 27, 2020Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Patent number: 10567002Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.Type: GrantFiled: May 1, 2019Date of Patent: February 18, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Yurii Sergeevich Shutkin, Pavel Anatolyevich Panteleev, Aleksey Alexandrovich Letunovskiy, Elyar Eldarovich Gasanov, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko
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Publication number: 20190334559Abstract: Provided is a base matrix of a rate-adaptive irregular QC-LDPC code, the base matrix being formed by columns and rows having entries representing circulant submatrices. The columns of the base matrix are divided into at least one or more higher weight first columns and lower weight second columns and the rows of the base matrix are divided into first high weight rows corresponding to the high rate mother code and second low weight rows corresponding to the extension part related to the lower rate codes. A first submatrix formed by an intersection of entries of the second columns and entries of the first and the second rows is divided into first quadratic submatrices, wherein at most one entry in each column of each first submatrix and/or at most one entry in each row of each first submatrix is labelled.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Inventors: Pavel Anatolyevich PANTELEEV, Gleb Vyacheslavovich KALACHEV, Ivan Leonidovich MAZURENKO, Elyar Eldarovich GASANOV, Yurii Sergeevich SHUTKIN
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Publication number: 20190260390Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.Type: ApplicationFiled: May 1, 2019Publication date: August 22, 2019Inventors: Yurii Sergeevich SHUTKIN, Pavel Anatolyevich PANTELEEV, Aleksey Alexandrovich LETUNOVSKIY, Elyar Eldarovich GASANOV, Gleb Vyacheslavovich KALACHEV, Ivan Leonidovich MAZURENKO
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Publication number: 20180337691Abstract: A decoding method, an encoding method, a decoder and an encoder are disclosed. In an embodiment the decoding method includes receiving, at a receiver of a receiving side, signals from a transmitting side, the signals including a code word and decoding, at a decoder of the receiving side, the code word using a low density parity check (LDPC) code in which each n adjacent rows, n>1, in an extension part of a base parity check matrix (PCM) are orthogonal except for punctured information columns.Type: ApplicationFiled: May 14, 2018Publication date: November 22, 2018Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Carmela Cozzo, Jie Jin
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Publication number: 20180323802Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.Type: ApplicationFiled: May 1, 2018Publication date: November 8, 2018Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
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Publication number: 20180226992Abstract: A method and system for offset lifting is provided. In an embodiment, a method for encoding data includes receiving a K-bit source word input. The method also includes encoding the K-bit source word input according to a LDPC code, a lifting function, and a circulant size offset to generate an N-bit code word output. The circulant size and lifting function are determined according to an information length, a code rate, and a decoder. The method also includes storing the N-bit code word output in input/output memory.Type: ApplicationFiled: February 2, 2018Publication date: August 9, 2018Inventors: Pavel Anatolyevich Panteleev, Wen Tong, Jiang Li, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy