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公开(公告)号：US20210021283A1
公开(公告)日：2021-01-21
申请号：US16914775
申请日：2020-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue ZHOU , Rong LI , Hejia LUO , Huazi ZHANG , Ying CHEN
Abstract: Embodiments of this application disclose encoding and decoding methods and apparatus related to the communications. One of the methods includes: obtaining, based on polar code rate matching, a subchannel corresponding to a punctured bit or a shortened bit; determine subchannels corresponding to an information bit and a check frozen bit that are different from the subchannel corresponding to the punctured bit or the shortened bit; determining that a subchannel corresponding to a frozen bit that is different from the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the punctured bit or the shortened bit; performing, according to the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the frozen bit, parity check encoding and polar encoding based on the information bit to obtain encoded information; and sending the encoded information.
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公开(公告)号：US20200350932A1
公开(公告)日：2020-11-05
申请号：US16929621
申请日：2020-07-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Hejia LUO , Gongzheng ZHANG , Rong LI , Jun WANG
Abstract: This application discloses a data transmission method, apparatus, and system. The method includes: generating a to-be-sent bit sequence, where the to-be-sent bit sequence includes one or more bits in a bit sequence having a length of (N−M), where N is a length of a mother code for polar encoding, M is a length of encoded bits obtained after rate matching is performed on a bit sequence having a length of N, N is m raised to the power of an integer, m is a positive integer greater than 1, M is a positive integer, and N
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公开(公告)号：US20200321984A1
公开(公告)日：2020-10-08
申请号：US16855495
申请日：2020-04-22
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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公开(公告)号：US20200266834A1
公开(公告)日：2020-08-20
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：US20190386778A1
公开(公告)日：2019-12-19
申请号：US16558285
申请日：2019-09-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Rong LI , Huazi ZHANG , Hejia LUO , Gongzheng ZHANG
Abstract: Embodiments provide a polar code encoding and decoding method in a communications system. Under the method, a basic quantized sequence can be obtained. The basic quantized sequence includes a quantized value used to represent reliability corresponding to a polarized subchannel. A target quantized sequence based on the basic quantized sequence can also be obtained. A relative magnitude relationship between elements in the target quantized sequence is nested with a relative magnitude relationship between elements in the basic quantized sequence. K largest quantized values in the target quantized sequence can be determined based on a non-fixed bit length K and polarized subchannels corresponding to the K largest quantized values can be used as a non-fixed bit position set. Polar code encoding or decoding can be performed based on the non-fixed bit position set.
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Patent Agency Ranking
公开(公告)号：US20190199474A1
公开(公告)日：2019-06-27
申请号：US16291921
申请日：2019-03-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying CHEN , Rong LI , Jun WANG , Hejia LUO , Yunfei QIAO
IPC: H04L1/00
CPC classification number: H04L1/0057 , H03M13/13 , H04L1/00 , H04L1/0009
Abstract: A polar code coding method and apparatus are provided. The method includes: determining, based on a target code length corresponding to an information bit sequence, a first mother code length corresponding to the information bit sequence; and performing polar code coding on the information bit sequence based on the first mother code length and mapping relationship information, where the mapping relationship information includes a correspondence between a mother code length and at least one of the following: a transport block size, a construction work point, or a construction sequence. In the method provided in the embodiments of the present invention, polar code coding may be directly performed on the information bit sequence based on at least one of a first transport block size, a first construction work point, or a first construction sequence, so as to reduce coding overheads in a polar code coding process.
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公开(公告)号：US20140233563A1
公开(公告)日：2014-08-21
申请号：US14260863
申请日：2014-04-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L12/18
CPC classification number: H04L12/18 , H04L12/185 , H04L45/16
Abstract: A multicast processing method, device, and system are provided. The method includes: blocking a port 1, where the port 1 is one of an egress port and an ingress port, and the other of the egress port and the ingress port is a root port; receiving a join packet from the ingress port, wherein the packet is used for a multicast user to request joining multicast; and establishing, according to multicast information of the multicast included in the join packet and port information of the ingress port, a forwarding table entry for forwarding data of the multicast from the egress port to the ingress port. Through embodiments of the present invention, an effect of shortening the multicast service recovery time is realized.
Abstract translation: 提供组播处理方法，设备和系统。 该方法包括：阻塞端口1，其中端口1是出口端口和入端口之一，出端口和入端口中的另一端为根端口; 从所述入口接收加入分组，其中所述分组用于组播用户请求加入多播; 根据加入报文中包含的组播的组播信息和入口端口的端口信息，建立转发表项，用于将组播数据从出口端口转发到入口端口。 通过本发明的实施例，实现了缩短组播业务恢复时间的效果。
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公开(公告)号：US20250047370A1
公开(公告)日：2025-02-06
申请号：US18926606
申请日：2024-10-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Yunfei QIAO , Yinggang DU , Jun WANG
Abstract: The technology of this application relates to a communication method and apparatus. In the method, a terminal device camping on a satellite cell receives first information, where the first information includes at least one first reference point and a frequency of at least one neighboring cell corresponding to the first reference point. The first reference point indicates a location in a first area other than a location of a network device to which the at least one neighboring cell corresponding to the first reference point belongs, and the first area includes a coverage area of the at least one neighboring cell corresponding to the first reference point. The terminal device measures the frequency of the at least one neighboring cell corresponding to the first reference point if a location of the terminal device is within a distance range of the first reference point.
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公开(公告)号：US20240283528A1
公开(公告)日：2024-08-22
申请号：US18653346
申请日：2024-05-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue ZHOU , Ying CHEN , Yunfei QIAO
CPC classification number: H04B7/18554 , H04B7/18539 , H04B7/19 , H04B7/195
Abstract: A terminal device obtains first indication information, where the first indication information indicates an ephemeris parameter of a first satellite at a first moment. The terminal device determines a position and a velocity of the first satellite at a second moment based on the ephemeris parameter of the first satellite at the first moment, where the second moment is after the first moment. In response to determining that an error of the position of the first satellite at the second moment is less than a first threshold and an error of the velocity of the first satellite at the second moment is less than a second threshold, the terminal device obtains second indication information, where the second indication information indicates an ephemeris parameter of the first satellite at a third moment, and the third moment is before the second moment.
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公开(公告)号：US20240129066A1
公开(公告)日：2024-04-18
申请号：US18398474
申请日：2023-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L1/1812 , H04L1/08 , H04L5/00
CPC classification number: H04L1/1812 , H04L1/08 , H04L5/0053
Abstract: This application provides a HARQ feedback method and an apparatus. The method includes: A terminal device receives first indication information, where the first indication information indicates a first quantity of retransmissions of first data. The terminal device obtains a second quantity of retransmissions based on a HARQ feedback result and/or a decoding result of second data, where the second data is data retransmitted by the terminal device before the terminal device retransmits the first data. The terminal device sends the first data by using a target quantity of retransmissions, where the target quantity of retransmissions is a smaller one of the first quantity of retransmissions and the second quantity of retransmissions. According to the method, data transmission is performed by using the determined target quantity of retransmissions, so that a delay caused by a HARQ can be reduced, resources can be saved, and power consumption can be reduced.
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