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公开(公告)号：US20210176007A1
公开(公告)日：2021-06-10
申请号：US17132566
申请日：2020-12-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rong LI , Gongzheng ZHANG , Ying CHEN , Xiaocheng LIU , Jun WANG
Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
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公开(公告)号：US20200169352A1
公开(公告)日：2020-05-28
申请号：US16778812
申请日：2020-01-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L1/00
Abstract: This application relates to the field of communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability computation and sorting of polar channels. The method is: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polar channels, and the sequence numbers of the N polar channels are arranged in the first sequence based on corresponding reliabilities of the N polar channels, where K is a positive integer, N is a mother code length of a polar code, N is a positive integer that is a power of 2, and K≤N; selecting sequence numbers of K polar channels from the first sequence in descending order of the reliabilities; and placing the to-be-encoded bits based on the selected sequence numbers of the K polar channels, and performing polar code encoding on the to-be-encoded bits.
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公开(公告)号：US20200092042A1
公开(公告)日：2020-03-19
申请号：US16579532
申请日：2019-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen HUANG , Gongzheng ZHANG , Ying CHEN , Yunfei QIAO , Rong LI
Abstract: Embodiments of this application provide a method and an apparatus for constructing a coding sequence. The method includes: storing a reliability sequence corresponding to a basic sequence, where a length of the reliability sequence corresponding to the basic sequence is less than or equal to a length of a reliability sequence corresponding to a mother code sequence; storing a reliability reference sequence, where the reliability reference sequence includes at least one element remaining after the reliability sequence corresponding to the basic sequence is excluded from the reliability sequence corresponding to the mother code sequence; and constructing a coding sequence by using the reliability sequence corresponding to the basic sequence and an element in the reliability reference sequence. During implementation of this application, during storage, only the reliability sequence corresponding to the basic sequence and the reliability reference sequence are stored. Because a sum of the length of the reliability sequence corresponding to the basic sequence and a length of the reliability reference sequence is far less than the length of the original reliability sequence, storage overheads can be reduced.
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公开(公告)号：US20190394056A1
公开(公告)日：2019-12-26
申请号：US16561537
申请日：2019-09-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guoqing XIE , Ying CHEN
Abstract: A multicast service processing method and an access device. In the method, an access device receives an on-demand request; the access device separately sends the on-demand request to a multicast source device through a first uplink port of the access device and a second uplink port of the access device, so that the multicast source device sends a first multicast packet and a second multicast packet based on the on-demand request; the access device receives the first multicast packet through the first uplink port of the access device, and receives the second multicast packet through the second uplink port of the access device; the access device obtains a multicast data stream based on attribute information of the first multicast packet and attribute information of the second multicast packet; and the access device sends the obtained multicast data stream to the program terminal.
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公开(公告)号：US20190379406A1
公开(公告)日：2019-12-12
申请号：US16549735
申请日：2019-08-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Gongzheng ZHANG , Yunfei QIAO , Rong LI , Huazi ZHANG , Hejia LUO
Abstract: This application provides a polar encoding and decoding method, a sending device, and a receiving device, to help overcome disadvantages in transmission of medium and small packets, a code rate, reliability, and complexity in the prior art. The method includes: pre-storing, by a computing device, at least one mother code sequence, wherein each mother code sequence comprises at least one subsequence and at least one subset, the at least one subsequence and the at least one subset each comprises one or more sequence numbers corresponding to one or more polarized channels, and wherein the one or more sequence numbers in each subsequence are arranged in an ascending order according to reliability of the corresponding one or more polarized channels; determining, by the computing device, a set of information bit sequence numbers from the at least one mother code sequence based on a code length of a target polar code; and performing, by the computing device, polar encoding on information bits based on the set of information bit sequence numbers.
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Patent Agency Ranking
公开(公告)号：US20190356342A1
公开(公告)日：2019-11-21
申请号：US16529514
申请日：2019-08-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi ZHANG , Rong LI , Yunfei QIAO , Hejia LUO , Gongzheng ZHANG , Ying CHEN
Abstract: The present disclosure relates to information transmission method, decoding method, and apparatus. One example method includes encoding, by a sending device, a to-be-encoded sequence based on preset parameters to obtain an encoded sequence, where the preset parameters include a quantity of check bits, positions of the check bits, and a check equation, and sending the encoded sequence to a receiving device.
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公开(公告)号：US20190312681A1
公开(公告)日：2019-10-10
申请号：US16423172
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Gongzheng ZHANG , Rong LI , Huazi ZHANG , Yourui HUANGFU , Jian WANG , Ying CHEN , Jun WANG
Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i−1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.
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公开(公告)号：US20190115997A1
公开(公告)日：2019-04-18
申请号：US16218719
申请日：2018-12-13
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0013 , H03M13/13 , H03M13/6362 , H04L1/00 , H04L1/0041 , H04L1/0057 , H04L1/0069 , H04L1/08 , H04L1/189 , H04L5/0051
Abstract: Embodiments of the present disclosure provide a data transmission method, including: performing polar code coding on to-be-coded bits, to obtain a mother code, where a code length of the mother code is related to K and Mi, i=1, 2, . . . , K, K is a quantity of sending times, Mi is a length of bits sent at an ith time, and K and Mi are positive integers greater than 1; performing rate matching on the mother code, to obtain to-be-sent bits, where a quantity of the to-be-sent bits is a sum of lengths of bits sent at K times; and sending Mi to-be-sent bits at the ith time.
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公开(公告)号：US20250151124A1
公开(公告)日：2025-05-08
申请号：US19018590
申请日：2025-01-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuili KONG , Ying CHEN , Xiaolu WANG , Yu WANG , Yinggang DU
IPC: H04W74/0833 , H04W76/38
Abstract: This application provides a random access method, an apparatus, and a system, which are applied to the field of communication technologies. The random access method provided in this application includes: First, a terminal device obtains first configuration information, where the first configuration information indicates a maximum quantity of repeated sending times of a preamble, and the maximum quantity of repeated sending times of the preamble is greater than 200. Then, the terminal device sends one or more preambles to a network device based on the first configuration information. According to the method, a current maximum quantity of repeated sending times of the preamble is extended, so that a decoding threshold for decoding the preamble by the network device is reduced, and a low uplink budget requirement of some scenarios can be met.
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公开(公告)号：US20250062887A1
公开(公告)日：2025-02-20
申请号：US18939007
申请日：2024-11-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Jianwei ZHOU , Jun WANG , Dali QIN , Yinggang DU
IPC: H04L5/14 , H04W72/0446
Abstract: This application provides a resource configuration method and a related apparatus. The method includes: A first terminal device receives first configuration information used to configure a first time division duplex frame structure. Because an interval between adjacent uplink time domain resources in the first time division duplex frame structure is determined based on a largest timing advance and a smallest timing advance in a terminal device that uses the first time division duplex frame structure, and the terminal device that uses the first time division duplex frame structure includes the first terminal device, after the first terminal device sends uplink data on a first uplink time domain resource in the first time division duplex frame structure by using a first timing advance, when the uplink data arrives at a network device, a time domain resource that can be used by the network device is an uplink time domain resource.
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