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公开(公告)号：US11095407B2
公开(公告)日：2021-08-17
申请号：US15813426
申请日：2017-11-15
发明人： Fanglin Sun , Cao Shi , Zhong Pan , Jianping Tu
摘要： Embodiments of the present invention provide a signal processing method, including: dividing a frequency band used to send a downlink synchronization symbol into at least two parts of frequency bands that do not overlap, where the two parts of frequency bands are a first frequency band and a second frequency band; alternately allocating frequencies in the first frequency band to a probe tone and a flag tone; and allocating all frequencies in the second frequency band to a probe tone; and modulating a downlink pilot sequence to probe tones in the first frequency band and the second frequency band, and sending the downlink pilot sequence to a peer device. The embodiments of the present invention further provide a signal processing apparatus and a network system.
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公开(公告)号：US20180069674A1
公开(公告)日：2018-03-08
申请号：US15813426
申请日：2017-11-15
发明人： Fanglin Sun , Cao Shi , Zhong Pan , Jianping Tu
CPC分类号： H04L5/0048 , H04B3/32 , H04B3/50 , H04L5/001 , H04L12/2878 , H04L43/00 , H04M11/062
摘要： Embodiments of the present invention provide a signal processing method, including: dividing a frequency band used to send a downlink synchronization symbol into at least two parts of frequency bands that do not overlap, where the two parts of frequency bands are a first frequency band and a second frequency band; alternately allocating frequencies in the first frequency band to a probe tone and a flag tone; and allocating all frequencies in the second frequency band to a probe tone; and modulating a downlink pilot sequence to probe tones in the first frequency band and the second frequency band, and sending the downlink pilot sequence to a peer device. The embodiments of the present invention further provide a signal processing apparatus and a network system.
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公开(公告)号：US20140362869A1
公开(公告)日：2014-12-11
申请号：US14199547
申请日：2014-03-06
发明人： Zhong Pan , Meng Sui , Shicai Chen , Cao Shi
CPC分类号： H04L5/0007 , H04B10/27 , H04B10/272 , H04L5/0037 , H04L27/2601 , H04Q11/0067
摘要： Embodiments of the present invention provide a network node transmission method, apparatus, and system. The method includes: receiving a downlink optical signal sent by an OLT, where the downlink optical signal is obtained through digital-to-analog conversion and electrical-to-optical conversion performed by the OLT on a first downlink multiplexing digital signal, and in the first downlink multiplexing digital signal, multiple customer premises equipments CPE correspond to respective OFDM symbol timeslots and/or subcarriers; and performing optical-to-electrical conversion and analog-to-digital conversion on the downlink optical signal to obtain a second downlink multiplexing digital signal, demultiplexing the second downlink multiplexing digital signal to obtain downlink OFDM symbols for each CPE of the multiple CPEs, and performing digital-to-analog conversion on the downlink OFDM symbols of each CPE to obtain a downlink analog signal of each CPE.
摘要翻译： 本发明的实施例提供一种网络节点传输方法，装置和系统。 该方法包括：接收由OLT发送的下行链路光信号，其中通过在第一下行链路复用数字信号上由OLT执行的数模转换和电 - 光转换获得下行链路光信号，并且在 第一下行链路复用数字信号，多个客户驻地设备CPE对应于相应的OFDM符号时隙和/或子载波; 对下行链路光信号进行光电转换和模数转换，得到第二下行复用数字信号，对第二下行复用数字信号进行解复用，以获得多个CPE的每个CPE的下行OFDM符号，以及 在每个CPE的下行链路OFDM符号上执行数模转换，以获得每个CPE的下行链路模拟信号。
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公开(公告)号：US08953664B2
公开(公告)日：2015-02-10
申请号：US13909770
申请日：2013-06-04
发明人： Cao Shi , Zhong Pan , Jie Lv , Shicai Chen
CPC分类号： H04M11/06 , H04M11/062
摘要： Embodiments of the present invention provide a method for activating a DSL. The method includes: sending, by a central office equipment, a sync frame period indication message to a customer premises equipment, where a sync frame period indicated by the sync frame period indication message is smaller than a specified sync frame period threshold; receiving a reply message sent by the customer premises equipment in response to the sync frame period indication message, where the reply message indicates whether the customer premises equipment accepts the sync frame period indicated by the sync frame period indication message; and if the reply message indicates that the customer premises equipment accepts the sync frame period, performing, by the central office equipment, vectoring training by using a corresponding sync frame within the sync frame period. The embodiments of the present invention further provide corresponding equipments, a system, and a program product.
摘要翻译： 本发明的实施例提供了一种激活DSL的方法。 该方法包括：由中心局设备向客户驻地设备发送同步帧周期指示消息，其中由同步帧周期指示消息指示的同步帧周期小于指定的同步帧周期阈值; 响应于所述同步帧周期指示消息，接收由所述客户驻地设备发送的应答消息，其中所述应答消息指示所述客户驻地设备是否接受由所述同步帧周期指示消息指示的同步帧周期; 并且如果所述回复消息指示所述客户驻地设备接受所述同步帧周期，则由所述中心局设备通过在所述同步帧周期内使用对应的同步帧执行向量化训练。 本发明的实施例还提供对应的设备，系统和程序产品。
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公开(公告)号：US20240113805A1
公开(公告)日：2024-04-04
申请号：US18530605
申请日：2023-12-06
发明人： Lingxiao Kong , Zhong Pan , Wei Zhong
CPC分类号： H04L1/004 , H04L5/0048 , H04L69/22
摘要： A communication method is applied to a communication system using a forward error correction (FEC) technology. In the communication method, a header field of a first data transmission unit sent by a transmit end apparatus may indicate a modulation manner of a second data transmission unit after the first data transmission unit, so that a receive end apparatus can determine, based on the header field of the received first data transmission unit, the modulation manner of the second data transmission unit after the first data transmission unit. Then, before FEC decoding is performed on the second data transmission unit, the receive end apparatus may complete demodulation of the second data transmission unit based on the determined modulation manner such that FEC decoding can be performed on a header field and a load field of the second data transmission.
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公开(公告)号：US09838073B2
公开(公告)日：2017-12-05
申请号：US14570983
申请日：2014-12-15
CPC分类号： H04B3/20 , H04L5/0007 , H04L5/0037 , H04L5/0044 , H04L5/143 , H04L5/1461 , H04L27/2647
摘要： The present invention provides a processing method based on an OFDM-TDMA two-way service and a communications device. The method includes assigning timeslots in a TDMA frame structure to multiple users in a TDMA manner, so that each user has a different timeslot, and each timeslot of the users is simultaneously used for uplink and downlink communication. The methods further includes simultaneously sending a local-end OFDM signal and receiving a remote-end OFDM signal in each timeslot of the users, and cancelling, in an OSD manner, interference caused by an echo OFDM signal, which is produced according to the local-end OFDM signal, to the remote-end OFDM signal, where a spectrum of the echo OFDM signal and a spectrum of the remote-end OFDM signal overlap.
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公开(公告)号：US09756178B2
公开(公告)日：2017-09-05
申请号：US15412678
申请日：2017-01-23
发明人： Jianping Tu , Zhong Pan
CPC分类号： H04M3/34 , H04B3/487 , H04L12/6418 , H04L25/0204 , H04L25/0228 , H04L25/03159 , H04L27/2613 , H04L2012/6478 , H04M11/062
摘要： A crosstalk processing method, an apparatus, and a system comprise a transceiver of a line that generates, respectively according to pilot sequences allocated by a vectoring control entity, pilot training signals that are within different spectral ranges and that satisfy a preset relationship with a pilot training signal of another line such that a receiver of the line can determine sample errors respectively according to the different pilot training signals. A vectoring control entity then determines crosstalk channel coefficients from the other line into an inband spectrum and an out-of-band spectrum of the line, and performs precoding processing on a to-be-sent data signal of the line to eliminate impact of crosstalk from the other line to the inband and out-of-band spectrums of the line.
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公开(公告)号：US20170134569A1
公开(公告)日：2017-05-11
申请号：US15412678
申请日：2017-01-23
发明人： Jianping Tu , Zhong Pan
CPC分类号： H04M3/34 , H04B3/487 , H04L12/6418 , H04L25/0204 , H04L25/0228 , H04L25/03159 , H04L27/2613 , H04L2012/6478 , H04M11/062
摘要： A crosstalk processing method, an apparatus, and a system comprise a transceiver of a line that generates, respectively according to pilot sequences allocated by a vectoring control entity, pilot training signals that are within different spectral ranges and that satisfy a preset relationship with a pilot training signal of another line such that a receiver of the line can determine sample errors respectively according to the different pilot training signals. A vectoring control entity then determines crosstalk channel coefficients from the other line into an inband spectrum and an out-of-band spectrum of the line, and performs precoding processing on a to-be-sent data signal of the line to eliminate impact of crosstalk from the other line to the inband and out-of-band spectrums of the line.
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9.发明申请Processing Method Based On OFDM-TDMA Two-Way Service and Communications Device 有权基于OFDM-TDMA双向业务和通信设备的处理方法公开(公告)号：US20150098373A1
公开(公告)日：2015-04-09
申请号：US14570983
申请日：2014-12-15
CPC分类号： H04B3/20 , H04L5/0007 , H04L5/0037 , H04L5/0044 , H04L5/143 , H04L5/1461 , H04L27/2647
摘要： The present invention provides a processing method based on an OFDM-TDMA two-way service and a communications device. The method includes assigning timeslots in a TDMA frame structure to multiple users in a TDMA manner, so that each user has a different timeslot, and each timeslot of the users is simultaneously used for uplink and downlink communication. The methods further includes simultaneously sending a local-end OFDM signal and receiving a remote-end OFDM signal in each timeslot of the users, and cancelling, in an OSD manner, interference caused by an echo OFDM signal, which is produced according to the local-end OFDM signal, to the remote-end OFDM signal, where a spectrum of the echo OFDM signal and a spectrum of the remote-end OFDM signal overlap.
摘要翻译： 本发明提供了一种基于OFDM-TDMA双向业务和通信设备的处理方法。 该方法包括以TDMA方式将TDMA帧结构中的时隙分配给多个用户，使得每个用户具有不同的时隙，并且用户的每个时隙同时用于上行链路和下行链路通信。 该方法还包括同时发送本地端OFDM信号并在用户的每个时隙中接收远端OFDM信号，并且以OSD方式取消由根据本地产生的回波OFDM信号引起的干扰 将OFDM信号发送到远端OFDM信号，其中回波OFDM信号的频谱和远端OFDM信号的频谱重叠。
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