-
公开(公告)号：US10263751B2
公开(公告)日：2019-04-16
申请号：US15468749
申请日：2017-03-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Liu , Xiaoyue He
Abstract: Embodiments of the present invention provide a robust channel (RC)-supporting coding and modulation method and apparatus. The method comprises: forming, on an interface between a PMD layer and a PMS-TC layer, a data frame by using bit data carried in a DMT symbol; determining first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, where the first-part bit data includes RC bit data, and coding second-part bit data in the data frame to obtain coded bit data; and mapping, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame, and performing modulation to obtain modulated subcarriers, where the RC bit data is mapped onto at least one RC subcarrier.
-
公开(公告)号：US09787518B2
公开(公告)日：2017-10-10
申请号：US15436421
申请日：2017-02-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaoyue He , Jianhua Liu , Fanglin Sun , Quanbo Zhao
CPC classification number: H04L27/3416 , H04L1/0054 , H04L27/3411
Abstract: Disclosed are a digital modulation method and apparatus. The digital modulation method includes: determining to-be-moved constellation points in a rectangular constellation diagram, where constellation points in the rectangular constellation diagram are distributed at corresponding coordinate points in a plane rectangular coordinate system, the to-be-moved constellation points include S columns of constellation points, in four quadrants of the plane rectangular coordinate system, and the rectangular constellation diagram is a constellation diagram generated by performing quadrature amplitude modulation (QAM) on a data bit stream; dividing to-be-moved constellation points in each of the four quadrants into two constellation point sets according to a bisector of an area between a horizontal coordinate axis and a straight line corresponding to a maximum absolute value of vertical coordinates in the rectangular constellation diagram; and horizontally moving and vertically moving each constellation point set in the four quadrants, to obtain a cross-shaped constellation diagram.
-
Patent Agency Ranking
公开(公告)号：US09680525B2
公开(公告)日：2017-06-13
申请号：US14794453
申请日：2015-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Liu , Guozhu Long , Xiang Wang , Yixian Liu
CPC classification number: H04B3/32 , H04L25/085 , H04M3/007 , H04M11/062
Abstract: Embodiments of the present invention provide a signal processing method in a DSL system. The method includes: determining that there is no to-be-sent downstream signal on m subscriber lines in n subscriber lines; superimposing a signal X on the m subscriber lines, so that a signal output on the m subscriber lines after precoding processing is 0, where xm indicates a signal component loaded on the mth subscriber line in the m subscriber lines; performing precoding processing on a downstream signal on the n subscriber lines; and sending the downstream signal that has undergone the precoding processing on another line except the m subscriber lines in the n subscriber lines. The embodiments of the present invention further provide a network-side device and a DSL system.
-
公开(公告)号：US10044407B2
公开(公告)日：2018-08-07
申请号：US14973965
申请日：2015-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiang Wang , Yixian Liu , Jianhua Liu
Abstract: Embodiments of the present invention provide a line initialization method, a device, and a system. The method includes: when a new line is added, releasing at least one resource unit that is on a line at a Showtime stage, so that on the line at the Showtime stage data is transmitted on a remaining resource unit that is obtained after the at least one resource unit is released; performing basic initialization on the new line by using the at least one resource unit or a subset of the at least one resource unit, so that after the basic initialization, data can be transmitted on the new line by using the at least one resource unit or the subset of the at least one resource unit; and performing crosstalk cancellation initialization on the line at the Showtime stage and the new line by using all resource units.
-
公开(公告)号：US20170201355A1
公开(公告)日：2017-07-13
申请号：US15468749
申请日：2017-03-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Liu , Xiaoyue He
CPC classification number: H04L5/006 , H04L1/0057 , H04L5/0007 , H04L5/0046 , H04L27/12 , H04L29/10 , H04W72/082
Abstract: Embodiments of the present invention provide a robust channel (RC)-supporting coding and modulation method and apparatus. The method comprises: forming, on an interface between a PMD layer and a PMS-TC layer, a data frame by using bit data carried in a DMT symbol; determining first-part bit data in the data frame as uncoded bit data on the interface between the PMD layer and the PMS-TC layer, where the first-part bit data includes RC bit data, and coding second-part bit data in the data frame to obtain coded bit data; and mapping, at the PMD layer, the uncoded bit data and the coded bit data onto multiple subcarriers corresponding to the data frame, and performing modulation to obtain modulated subcarriers, where the RC bit data is mapped onto at least one RC subcarrier.
-
公开(公告)号：US20150311949A1
公开(公告)日：2015-10-29
申请号：US14794453
申请日：2015-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Liu , Guozhu Long , Xiang Wang , Yixian Liu
CPC classification number: H04B3/32 , H04L25/085 , H04M3/007 , H04M11/062
Abstract: Embodiments of the present invention provide a signal processing method in a DSL system. The method includes: determining that there is no to-be-sent downstream signal on m subscriber lines in n subscriber lines; superimposing a signal X on the m subscriber lines, so that a signal output on the m subscriber lines after precoding processing is 0, where xm indicates a signal component loaded on the mth subscriber line in the m subscriber lines; performing precoding processing on a downstream signal on the n subscriber lines; and sending the downstream signal that has undergone the precoding processing on another line except the m subscriber lines in the n subscriber lines. The embodiments of the present invention further provide a network-side device and a DSL system.
Abstract translation: 本发明的实施例提供了DSL系统中的信号处理方法。 该方法包括：确定在n个用户线路中的m个用户线路上没有不发送的下行信号; 在m个用户线路上叠加信号X，使得在预编码处理之后在m个用户线路上输出的信号为0，其中xm表示在m个用户线路中的第m个用户线路上加载的信号分量; 对n个用户线路上的下行信号进行预编码处理; 并且在n个用户线路中除了m个用户线路之外的另一个线路上发送经过预编码处理的下行信号。 本发明的实施例还提供一种网络侧设备和DSL系统。
-
公开(公告)号：US20160105216A1
公开(公告)日：2016-04-14
申请号：US14973965
申请日：2015-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiang Wang , Yixian Liu , Jianhua Liu
IPC: H04B3/32
CPC classification number: H04B3/32 , H04M11/062
Abstract: Embodiments of the present invention provide a line initialization method, a device, and a system. The method includes: when a new line is added, releasing at least one resource unit that is on a line at a Showtime stage, so that on the line at the Showtime stage data is transmitted on a remaining resource unit that is obtained after the at least one resource unit is released; performing basic initialization on the new line by using the at least one resource unit or a subset of the at least one resource unit, so that after the basic initialization, data can be transmitted on the new line by using the at least one resource unit or the subset of the at least one resource unit; and performing crosstalk cancellation initialization on the line at the Showtime stage and the new line by using all resource units.
Abstract translation: 本发明的实施例提供一种线路初始化方法，装置和系统。 该方法包括：当添加新行时，释放在Showtime阶段在行上的至少一个资源单元，使得在Showtime阶段的行上的数据在在at之后获得的剩余资源单元上发送 发布至少一个资源单位; 通过使用所述至少一个资源单元或所述至少一个资源单元的子集来在所述新行上执行基本初始化，使得在所述基本初始化之后，可以通过使用所述至少一个资源单元在新行上传输数据，或者 所述至少一个资源单元的子集; 并通过使用所有资源单元在Showtime阶段的线路上执行串扰消除初始化。
-
-
-
-
-
-
Search Results
7
records
(took 0.017 seconds)
