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公开(公告)号：US20240048155A1
公开(公告)日：2024-02-08
申请号：US18448782
申请日：2023-08-11
发明人： Chen Zheng , Liang Ma , Xiaojian Liu , Yuejun Wei , Xin Zeng
CPC分类号： H03M13/1102 , H03M13/616 , H03M13/116 , H03M13/6393 , H03M13/6516 , H03M13/11 , H04L1/00
摘要： This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.
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公开(公告)号：US11777521B2
公开(公告)日：2023-10-03
申请号：US17742183
申请日：2022-05-11
发明人： Chen Zheng , Liang Ma , Xiaojian Liu , Yuejun Wei , Xin Zeng
CPC分类号： H03M13/1102 , H03M13/11 , H03M13/116 , H03M13/616 , H03M13/6393 , H03M13/6516 , H04L1/00
摘要： This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.
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公开(公告)号：US20160224399A1
公开(公告)日：2016-08-04
申请号：US15059380
申请日：2016-03-03
发明人： Chen Zheng , Ruihua Hou , Jianfeng Zhan , Lixin Zhang
CPC分类号： G06F9/545 , G06F9/468 , G06F12/1027 , G06F13/24 , G06F2212/681
摘要： A method and an apparatus for accessing a hardware resource are provided. The method includes configuring permission for one or more privileged instructions that are used for hardware access such that when the privileged instructions are used by a user mode application program, the application program can access a hardware resource without trapping into a kernel, and executing the privileged instructions that are encapsulated in the privileged application programming interface (API) that is called at the code level by the application program , and a privileged instruction for direct access to a hardware resource is set and encapsulated into an API, which is deployed in user space in order to reduce system overheads for accessing the hardware resource and improve processing efficiency.
摘要翻译： 提供了一种用于访问硬件资源的方法和装置。 该方法包括配置用于硬件访问的一个或多个特权指令的许可，使得当用户模式应用程序使用特权指令时，应用程序可以访问硬件资源而不会陷入内核，并执行特权 封装在由应用程序在代码级调用的特权应用程序编程接口（API）中的指令以及用于直接访问硬件资源的特权指令被设置并封装到部署在用户空间中的API 以减少用于访问硬件资源的系统开销并提高处理效率。
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4.发明授权公开(公告)号：US11070316B2
公开(公告)日：2021-07-20
申请号：US16563545
申请日：2019-09-06
发明人： Liang Ma , Xin Zeng , Chen Zheng , Xiaojian Liu , Yuejun Wei
摘要： An information processing method, an apparatus, a communications device, and a communications system are provided. The communications device is configured to: obtain a starting position in a buffer sequence W for an output bit sequence, and determine the output bit sequence from the buffer sequence W based on the starting position, where a value of the starting position is one element in {p0, p1, p2, . . . , pkmax−1}, 0≤k
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公开(公告)号：US10985868B2
公开(公告)日：2021-04-20
申请号：US16562389
申请日：2019-09-05
发明人： Chen Zheng , Liang Ma , Yuejun Wei , Xin Zeng
摘要： Embodiments of this application provide a communications method and apparatus. The method includes: obtaining an input sequence for rate matching, wherein the input sequence is a retransmission sequence corresponding to a transport block, the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ct code blocks; and performing rate matching on the Ct code blocks, wherein a length of a rate matching output sequence of of each of the Ct code blocks satisfies the following conditions: when j≤Ct−γ−1, E=NL·Qm·└G′/Ct┘; when j>Ct−γ−1, E=NL·Qm·┌G′/Ct┐. The method may be applicable to a system in which transmission is performed based on a code block group, and resources are fully used as many as possible, thereby improving performance.
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公开(公告)号：US10693609B2
公开(公告)日：2020-06-23
申请号：US16231946
申请日：2018-12-25
发明人： Liang Ma , Chen Zheng , Xin Zeng , Yuejun Wei
摘要： Embodiments of this application relate to communication technologies and provide a method for transmitting or retransmitting data in a transport block. The transport block includes one or more code block groups, and each code block group includes one or more code blocks. A data processing device determines a code block group in the transport block that needs to be transmitted. Each code block in the code block group is processed by the data processing device to obtain a bit sequence. The data processing device transmits one or more bit sequences obtained by processing one or more code blocks in the code block group. The method and the apparatus provided in this application help reduce waste of air interface resources.
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公开(公告)号：US20200021310A1
公开(公告)日：2020-01-16
申请号：US16580398
申请日：2019-09-24
发明人： Chen Zheng , Xiaojian Liu , Yuejun Wei , Xin Zeng
摘要： Embodiments of the present invention disclose an information processing method and apparatus, and a device. The method includes: if Rreal is greater than or equal to Rmin, determining, based on a maximum code block length Kmax of an LDPC (low-density parity-check code) code, a quantity C of code blocks into which a transport block is to be segmented, where Rreal is a largest one among an encoding code rate of the transport block, a code rate limit of the transport block, and a minimum code rate of the LDPC code, and Rmin is a minimum code rate corresponding to the maximum code block length of the LDPC code, or a larger one between a minimum code rate corresponding to the maximum code block length of the LDPC code and a code rate limit of the maximum code block length of the LDPC code.
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公开(公告)号：US20160196473A1
公开(公告)日：2016-07-07
申请号：US15068017
申请日：2016-03-11
发明人： Chen Zheng , Yang Liu , Dong Wang
CPC分类号： G06K9/00744 , G06K9/00771 , G06K9/4604 , G06T7/20 , G06T2207/10016 , G06T2207/30232
摘要： A video extraction method and device. The method includes acquiring original image resolution S0 of a Tth frame in which a target image corresponding to a target object is located, where T is a positive integer, and acquiring a resolution parameter P of the target image in the Tth frame, obtaining extraction resolution S1 according to the original image resolution S0 and the resolution parameter P, and extracting an image of the target object in a (T+1)th frame according to the extraction resolution S1. In this way, when extraction processing is performed on the target object in the (T+1)th frame, extraction processing is performed on the target image corresponding to the target object in the (T+1)th frame with reference to the extraction resolution, which is obtained through analysis, of the (T+1)th frame.
摘要翻译： 视频提取方法和设备。 该方法包括获取第T帧的原始图像分辨率S0，其中对应于目标对象的目标图像位于其中，其中T是正整数，并获取第T帧中的目标图像的分辨率参数P，获得提取分辨率 S1根据原始图像分辨率S0和分辨率参数P，并且根据提取分辨率S1在第（T + 1）帧中提取目标对象的图像。 以这种方式，当对第（T + 1）帧中的目标对象进行提取处理时，参照提取（T + 1）帧对与第（T + 1）帧中的目标对象相对应的目标图像进行提取处理 通过分析获得的（T + 1）帧的分辨率。
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公开(公告)号：US11588576B2
公开(公告)日：2023-02-21
申请号：US17389004
申请日：2021-07-29
发明人： Liang Ma , Xin Zeng , Chen Zheng , Yuejun Wei
摘要： This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like LDPC base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.
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公开(公告)号：US11463108B2
公开(公告)日：2022-10-04
申请号：US16691281
申请日：2019-11-21
发明人： Chen Zheng , Yuejun Wei , Liang Ma , Xiaojian Liu , Xin Zeng
摘要： This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low-density parity-check (LDPC) matrix, to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented as a matrix of m rows and n columns, each column corresponds to a group of Z consecutive bits in the bit sequence D, and n and Z are both integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting two groups of bits corresponding to at least two parity check columns in the bit sequence D.
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