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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：US12119570B2
公开(公告)日：2024-10-15
申请号：US17951649
申请日：2022-09-23
发明人： Jinjin Shao , Cao Shi
摘要： This application provides an antenna, including a folded antenna, a dipole antenna, and a coupling structure. An extension direction of a primary radiator of the folded antenna is a first direction, an extension direction of a primary radiator of the dipole antenna is a second direction, and the first direction is orthogonal to the second direction. In the second direction, the folded antenna is disposed at one end of the dipole antenna, an operating frequency of the folded antenna is a first frequency band, an operating frequency of the dipole antenna includes a second frequency band, and the first frequency band is higher than the second frequency band. The coupling structure is connected between the folded antenna and the dipole antenna.
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3.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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4.发明申请公开(公告)号：US20140313876A1
公开(公告)日：2014-10-23
申请号：US14319862
申请日：2014-06-30
发明人： Cao Shi
IPC分类号： H04B3/20
CPC分类号： H04B3/20 , H04B3/237 , H04L25/0204 , H04L27/2647
摘要： Embodiments of the present invention provide a transmission method. The method includes: performing sending of a near-end orthogonal frequency division multiplexing signal and receiving of a far-end orthogonal frequency division multiplexing signal simultaneously on an orthogonal frequency division multiplexing channel; obtaining a carrier phase difference between an echo orthogonal frequency division multiplexing signal and the far-end orthogonal frequency division multiplexing signal, and a channel transfer function of an near-end echo channel; and generating an echo cancellation signal according to the carrier phase difference, the channel transfer function of the near-end echo channel, and a near-end signal to be sent, and overlapping the echo cancellation signal and a received signal to cancel the echo orthogonal frequency division multiplexing signal that is overlapped in the received signal.
摘要翻译： 本发明的实施例提供一种传输方法。 该方法包括：在正交频分复用信道上同时执行近端正交频分复用信号的发送和远端正交频分复用信号的接收; 获得回波正交频分复用信号和远端正交频分复用信号之间的载波相位差，以及近端回波信道的信道传递函数; 并且根据载波相位差，近端回波信道的信道传递函数和要发送的近端信号产生回波消除信号，并且与回波消除信号和接收信号重叠以消除正交的回波信号 在接收信号中重叠的频分复用信号。
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公开(公告)号：US12113275B2
公开(公告)日：2024-10-08
申请号：US17846215
申请日：2022-06-22
发明人： Dongwei Wu , Jinjin Shao , Cao Shi
摘要： A printed antenna may include a loop antenna body, a feed port, and a switch component. The loop antenna body includes a first end and a second end, there is a spacing between the first end and the second end, a connection line between the first end and the second end forms a closed loop with the loop antenna body. The feed module is configured to output a feed signal to the loop antenna body by using the feed port. The loop antenna body includes a plurality of loop antenna branches, the switch component is disposed between every two adjacent loop antenna branches, and the switch component is configured to connect or disconnect the two adjacent loop antenna branches.
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公开(公告)号：US20230020807A1
公开(公告)日：2023-01-19
申请号：US17951649
申请日：2022-09-23
发明人： Jinjin Shao , Cao Shi
摘要： This application provides an antenna, including a folded antenna, a dipole antenna, and a coupling structure. An extension direction of a primary radiator of the folded antenna is a first direction, an extension direction of a primary radiator of the dipole antenna is a second direction, and the first direction is orthogonal to the second direction. In the second direction, the folded antenna is disposed at one end of the dipole antenna, an operating frequency of the folded antenna is a first frequency band, an operating frequency of the dipole antenna includes a second frequency band, and the first frequency band is higher than the second frequency band. The coupling structure is connected between the folded antenna and the dipole antenna.
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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：US09020017B2
公开(公告)日：2015-04-28
申请号：US14162260
申请日：2014-01-23
发明人： Cao Shi
摘要： A signal processing method, device, and system are provided. The method includes: sending, through a first user port, a crosstalk detection signal in a connected line, and receiving, through a second user port, an error sample of an actual downlink signal fed back by a terminal side in a connected line; and estimating, according to the actual downlink signal and the crosstalk detection signal, a coefficient of a pre-coder of a DSLAM to obtain an estimated coefficient of the pre-coder, where the coefficient of the pre-coder is used to cancel far-end crosstalk on the line connected to the second user port when the first user port sends an SELT signal.
摘要翻译： 提供信号处理方法，装置和系统。 该方法包括：通过第一用户端口发送连接线路中的串扰检测信号，并通过第二用户端口接收由连接线路中的终端侧反馈的实际下行链路信号的误差样本; 以及根据所述实际下行链路信号和所述串扰检测信号，估计DSLAM的预编码器的系数，以获得所述预编码器的估计系数，其中所述预编码器的系数用于取消远端编码器的系数， 当第一用户端口发送SELT信号时，连接到第二用户端口的线路上的端串扰。
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公开(公告)号：US20150016344A1
公开(公告)日：2015-01-15
申请号：US14502352
申请日：2014-09-30
发明人： Cao Shi , Xiaoyue He , Guozhu Long , Dong Wei
CPC分类号： H04W52/243 , H04B3/06 , H04B3/32 , H04W24/02
摘要： Embodiments of the present invention disclose a signal transmission method. A first correspondence is acquired between both a PSD of transmitted signals of the first communications equipment and a PSD of transmitted signals of a second communications equipment and a signal-to-noise ratio of received signals of the first communications equipment. A second correspondence is acquired between the signal-to-noise ratio of received signals of the first communications equipment and the number of bits for bearing signals. An optimization algorithm is used to calculate a PSD of transmitted signals of the first communications equipment and a PSD of transmitted signals of the second communications equipment.
摘要翻译： 本发明的实施例公开了一种信号传输方法。 在第一通信设备的发送信号的PSD和第二通信设备的发送信号的PSD和第一通信设备的接收信号的信噪比之间获取第一对应。 在第一通信设备的接收信号的信噪比和方位信号的比特数之间获取第二对应关系。 使用优化算法来计算第一通信设备的发射信号的PSD和第二通信设备的发射信号的PSD。
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10.发明申请METHOD, APPARATUS AND SYSTEM FOR COMPATIBILITY WITH VDSL2 LEGACY CUSTOMER PREMISES EQUIPMENT 有权方法，与VDSL2 LEGACY CUSTOMER PREMISE EQUIPMENT兼容的装置和系统公开(公告)号：US20150163350A1
公开(公告)日：2015-06-11
申请号：US14623386
申请日：2015-02-16
CPC分类号： H04M3/34 , H04B3/32 , H04B3/487 , H04M3/007 , H04M11/062
摘要： Embodiments of the present invention provide a method for compatibility with a VDSL2 legacy customer premises equipment, including: selecting tones in preset locations from tones of a legacy line as training tones; controlling the training tones not to transmit data and modulating a pilot sequence on the training tones; calculating and feeding back clipped errors on a Vectored line; and calculating coefficients, for the training tones, of crosstalk of the legacy line in the Vectored line according to the pilot sequence and the clipped errors. The embodiments of the present invention further provide an apparatus and a system for compatibility with a VDSL2 legacy customer premises equipment.
摘要翻译： 本发明的实施例提供了一种用于与VDSL2传统客户驻地设备的兼容性的方法，包括：从传统线路的音调中选择预设位置的音调作为训练音; 控制训练音调不发送数据和调制训练音上的导频序列; 计算并反馈在向导线上的限幅误差; 以及根据导频序列和限幅误差，计算导频线中传统线路的串扰的训练音调的系数。 本发明的实施例还提供了一种用于与VDSL2传统客户驻地设备兼容的装置和系统。
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