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公开(公告)号：US11323205B2
公开(公告)日：2022-05-03
申请号：US16747273
申请日：2020-01-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: A polar code encoding method and apparatus are provided, the method including obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence comprises sequence numbers of N polar channels, where the sequence numbers of the N polar channels are arranged in the first sequence according to reliability of the N polar channels, where K is a positive integer, where N is a mother code length of a polar code, where N is a positive integer power of 2, and where K≤N, selecting sequence numbers of K polar channels from the first sequence in descending order of the reliability, and placing the to-be-encoded bits according to 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：US11303388B2
公开(公告)日：2022-04-12
申请号：US16908252
申请日：2020-06-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Yinggang Du , Rong Li , Lingchen Huang , Ying Chen
IPC: H04L1/00
Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：US20220109524A1
公开(公告)日：2022-04-07
申请号：US17491529
申请日：2021-10-01
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jun Wang , Gongzheng Zhang , Huazi Zhang , Chen Xu , Lingchen Huang , Shengchen Dai , Hejia Luo , Yunfei Qiao , Rong Li , Jian Wang , Ying Chen , Nikita Polianskii , Mikhail Kamenev , Zukang Shen , Yourui HuangFu , Yinggang Du
Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.
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公开(公告)号：US11265101B2
公开(公告)日：2022-03-01
申请号：US16786488
申请日：2020-02-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Gongzheng Zhang , Hejia Luo , Rong Li , Yue Zhou
IPC: H04L1/00
Abstract: Embodiments of the present disclosure provide a rate matching method and an apparatus. The method includes performing, by a sending apparatus, encoding using a polar code to obtain a first encoded sequence whose length is N. A sequence number of a polarization channel may range from 0 to N−1. The method includes determining, by the sending apparatus, P1 to-be-punctured bit positions. The method includes performing puncturing at the P1 bit positions in the first encoded sequence to obtain rate-matched encoded bits. The P1 to-be-punctured bit positions are bit positions corresponding to polarization channels 0 to PT1−1, PT1 to 3N/8−1, and/or N/2 to 5N/8−1, PT1 is a threshold of a quantity of to-be-punctured bit positions, and PT1≤N/4. The method includes sending the rate-matched encoded bits.
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公开(公告)号：US11258463B2
公开(公告)日：2022-02-22
申请号：US16673581
申请日：2019-11-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hejia Luo , Gongzheng Zhang , Jian Wang , Rong Li , Yourui HuangFu , Huazi Zhang , Ying Chen , Jun Wang
Abstract: A polar code transmission method and apparatus, the method including performing, by a transmit end, polar code encoding on at least one of to-be-encoded bit sequences U to generate an encoded sequence, wherein a length of U is N, and scrambling and interleaving, by the transmit end, the encoded sequence by using a scrambling sequence SX and an interleaving matrix PX.
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Patent Agency Ranking
公开(公告)号：US11082964B2
公开(公告)日：2021-08-03
申请号：US16736511
申请日：2020-01-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hejia Luo , Rong Li , Guangzhu Zeng
Abstract: An uplink data transmission method and device are provided. The method includes: receiving, by a network device, a control symbol sent by a terminal device by using a control time-frequency resource, wherein the control symbol carries control information, wherein the control information indicates a data encoding scheme at the terminal device, wherein the control time-frequency resource belongs to a transmission resource that includes a data time-frequency resource, and wherein the control time-frequency resource and the data time-frequency resource are different; demodulating and decoding, at the network device, the control symbol to obtain the control information; and decoding, at the network device and according to the control information, a data symbol to obtain uplink data, wherein the data symbol is received from the terminal device by way of the data time-frequency resource.
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公开(公告)号：US11076316B2
公开(公告)日：2021-07-27
申请号：US16566500
申请日：2019-09-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Rong Li , Chaolong Zhang , Lingchen Huang , Hejia Luo
Abstract: This application provides a wireless communication method and device. The method includes: scrambling, with each piece of configuration information of a plurality of pieces of configuration information for configuring a terminal device, bits that are included in a cyclic redundancy check (CRC) of downlink control information (DCI) and that correspond to each piece of configuration information, to obtain a scrambled sequence, where at least one bit of bits that correspond to each piece of configuration information does not correspond to another piece of configuration information of the plurality of pieces of configuration information; and sending the DCI and the scrambled sequence to the terminal device.
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公开(公告)号：US11075653B2
公开(公告)日：2021-07-27
申请号：US16671763
申请日：2019-11-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Yunfei Qiao , Jun Wang , Gongzheng Zhang , Hejia Luo , Rong Li , Lingchen Huang
Abstract: Embodiments of this application provide a polar code encoding and decoding method and apparatus. The method includes: obtaining an information bit set from a polar code construction sequence table based on an information bit length and a target code length of to-be-encoded information, where the polar code construction sequence table stores a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter, the construction sequence is a sequence representing an order of reliability of polarized channels, and the encoding parameter includes at least one of an aggregation level, the target code length, and a mother code length, or the encoding parameter is a maximum mother code length; and performing polarization encoding on the to-be-encoded information based on the to-be-encoded information and the information bit set.
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公开(公告)号：US11057054B2
公开(公告)日：2021-07-06
申请号：US16798403
申请日：2020-02-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi Zhang , Rong Li , Yue Zhou , Hejia Luo , Gongzheng Zhang , Yunfei Qiao
Abstract: Embodiments of this application provide a method for transmitting encoded information. A communication device obtains K bits of information, and generates a to-be-encoded sequence u1N, wherein N is a length of the sequence. The device encodes the sequence u1N in an encoding process, to obtain an output sequence, and transmits the output sequence. In the sequence u1N, each of the N bits corresponds to a subchannel, and each subchannel has a reliability. The K information bits, a quantity J of first-type auxiliary bits, and a quantity J′ of second-type auxiliary bits are placed in K′=K+J+J′ bit positions of the sequence u1N according to reliabilities of the subchannels. Since the positions of the information bits and the auxiliary bits are pre-determined and not affected by subsequent encoding and rate-matching, overheads of real-time reliability calculation are effectively reduced, time is saved, and delay is reduced.
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公开(公告)号：US10992318B2
公开(公告)日：2021-04-27
申请号：US16673589
申请日：2019-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Wang , Gongzheng Zhang , Hejia Luo , Chaolong Zhang , Rong Li
Abstract: This application provides a coding method and apparatus, and a device. The method includes: dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, where a subchannel location in each subset still belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed; determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar polar code based on the at least two mutually exclusive subsets; and coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set. The coding method and apparatus, and the device provided in this application can improve communication performance of polar coding.
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