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公开(公告)号：US11265018B2
公开(公告)日：2022-03-01
申请号：US16796300
申请日：2020-02-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Ying Chen , Yunfei Qiao , Yourui HuangFu , Rong Li
Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A device obtains a Polar encoded bit sequence, then divide the Polar encoded bit sequence into g groups that are of equal length N/g, wherein g is 32. The device block interleaves the g groups to obtain an interleaved bit sequence according to a sequence S, wherein the sequence S comprises: group numbers of the g groups, wherein a group whose number is 0 is the first element in the sequence S, wherein a group whose number is 12 is the 17th element in the sequence S, wherein a group whose number is 31 is the 32nd element in the sequence S, wherein the S is an integer and output the interleaved bit sequence.
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公开(公告)号：US11245423B2
公开(公告)日：2022-02-08
申请号：US16787045
申请日：2020-02-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Hejia Luo , Yunfei Qiao , Rong Li
Abstract: An interleaving method and apparatus are provided, to reduce complexity of implementation processes of polar code interleaving and rate matching. The method includes: obtaining encoded bits after polar code encoding, and sorting the encoded bits based on a priority order of performing a rate matching operation, to obtain a first bit sequence. The first bit sequence includes j subsequences, and j is a positive integer. The method further includes writing the first bit sequence into an interleaver of i rows and j columns. Bits in a column in the interleaver include one of the j subsequences; and reading out bits from the interleaver column by column, until M bits are read. At least two adjacent columns have opposite readout directions, and M is a target code length.
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公开(公告)号：US11240709B2
公开(公告)日：2022-02-01
申请号：US16571161
申请日：2019-09-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunfei Qiao , Chaolong Zhang , Jian Wang , Shengchen Dai , Rong Li
Abstract: Embodiments provide a data transmission method and a related device. Under the method, after determining a first data packet to be sent to a receive end, a transmit end may generate a second data packet based on the first data packet, encode the second data packet, and send an encoded second data packet. A length of the second data packet is greater than a length of the first data packet. In various embodiments, when sending a data packet to the receive end, the transmit end may generate a longer data packet from a shorter data packet through combination, and send the longer data packet to the receive end after channel coding. In this way, a relatively high channel coding gain can be obtained during data transmission, and a relatively high bit error rate of short packet transmission is avoided, so that data transmission reliability can be improved.
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公开(公告)号：US20210410198A1
公开(公告)日：2021-12-30
申请号：US17317298
申请日：2021-05-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei Qiao , Jun Wang
Abstract: This application provides a satellite communication device and method, the method including obtaining ephemeris information of a satellite in a satellite network, the ephemeris information of the satellite in the satellite network including one or more a beam parameter of the satellite in the satellite network, a physical resource of the satellite in the satellite network, or scheduling information of the satellite in the satellite network, generating a first message based on the ephemeris information of the satellite in the satellite network, where the first message includes ephemeris information of one or more satellites that serve a terminal device, and sending the first message when the terminal device performs random access, to implement communication between the terminal device and the one or more satellites.
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公开(公告)号：US11190213B2
公开(公告)日：2021-11-30
申请号：US16689754
申请日：2019-11-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Aleksei Eduardovich Maevskii , Vladimir Gritsenko , Yunfei Qiao , Jian Wang , Chaolong Zhang
Abstract: A coding method, a wireless device, and a chip are described. A coding method may include obtaining, based on a sequence whose length is 2n′, a mother code sequence used for coding, where the sequence whose length is 2n′ includes 2n′ sequence numbers, a length of the mother code sequence is 2n, the mother code sequence includes 2n sequence numbers, the 2n sequence numbers are some or all of the 2n′ sequence numbers, n′ is a natural number, and n is a natural number less than or equal to n′. The method may also include coding an input to-be-coded bit by using the mother code sequence. According to this method, a system may store one or more long sequences, and then obtain a required mother code sequence from one of the long sequences according to a coding requirement, thereby reducing storage overheads of the system.
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Patent Agency Ranking
公开(公告)号：US11184028B2
公开(公告)日：2021-11-23
申请号：US16569745
申请日：2019-09-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue Zhou , Huazi Zhang , Rong Li , Hejia Luo , Yunfei Qiao , Jun Wang
Abstract: A coding method, a decoding method, an apparatus, and a device are provided. The method includes: coding, by a sending device, an information bit sequence to obtain a coded bit sequence, where the coded bit sequence includes an information bit, a frozen bit, a CRC check bit, and a frozen check bit; and a value of the frozen check bit and a value of the CRC check bit are obtained by using a same cyclic shift register; performing, by the sending device, polar coding and rate matching on the coded bit sequence to obtain a to-be-sent rate-matched sequence; and sending, by the sending device, the rate-matched sequence. According to the method, time and space for coding calculation and decoding calculation can be effectively reduced, and calculation complexity is reduced.
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公开(公告)号：US11171741B2
公开(公告)日：2021-11-09
申请号：US16685366
申请日：2019-11-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zukang Shen , Yunfei Qiao , Rong Li , Hejia Luo , Shengchen Dai
IPC: H04L1/00
Abstract: Example polar code-based transmission methods and apparatus are provided, to apply polar encoding to a physical broadcast channel (PBCH). One example method includes performing polar encoding on a to-be-encoded first bit sequence by a transmit end to generate an encoded sequence. The transmit end performs a transformation operation on the encoded sequence to obtain a second bit sequence, where the transformation operation includes at least one of scrambling, interleaving, or reordering. The transmit end sends the second bit sequence in M inconsecutive time units, where at least two time intervals between the time units in the M inconsecutive time units are unequal.
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公开(公告)号：US11171673B2
公开(公告)日：2021-11-09
申请号：US16923898
申请日：2020-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiajie Tong , Huazi Zhang , Yunfei Qiao , Rong Li , Xiaocheng Liu , Jun Wang
Abstract: A decoding method and apparatus are provided, to improve a degree of parallelism in decoded bit decisions and reduce a decoding delay. The method includes: performing a hard decision on each LLR in an inputted LLR vector having a length of M to obtain a first vector, where M≤N and N is a length of to-be-decoded information; sequentially performing negation of some elements of the first vector to obtain L vectors; and then determining decoding results of the LLR vector based on the L vectors.
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公开(公告)号：US20210250990A1
公开(公告)日：2021-08-12
申请号：US17244487
申请日：2021-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chuili Kong , Gongzheng Zhang , Yunfei Qiao , Hejia Luo
Abstract: A random access method includes sending a random access preamble to a base station on a first time domain resource, obtaining an index value of the first time domain resource, obtaining an index difference between the first time domain resource and a second time domain resource, obtaining an index value of the second time domain resource by adding the index value of the first time domain resource and the index difference, obtaining a random access radio network temporary identifier (RA-RNTI) based on the index value of the second time domain resource, receiving a random access response (RAR) from the base station, and descrambling a cyclic redundancy check (CRC) code of the RAR using the RA-RNTI.
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公开(公告)号：US11075715B2
公开(公告)日：2021-07-27
申请号：US16672309
申请日：2019-11-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue Zhou , Rong Li , Yinggang Du , Huazi Zhang , Pengcheng Qiu , Yunfei Qiao , Jun Wang
IPC: H04L1/00
Abstract: Embodiments of the present disclosure disclose an encoding method. The method includes: obtaining a corresponding index value from an index module based on values in Z to-be-encoded bits that are obtained and a state space value in a state space module, performing an operation based on the index value and the state space value to obtain a new state space value, encoding the Z to-be-encoded bits that are obtained, and obtaining a value from the new state space value and assigning the value to an auxiliary bit.
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