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1.发明授权Apparatus and method for fast retransmission in a power line communication network 有权电力线通信网络中快速重传的装置和方法公开(公告)号：US09026878B2
公开(公告)日：2015-05-05
申请号：US12734591
申请日：2008-11-11
申请人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
发明人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
CPC分类号： H04L1/1867 , H04L2001/0097
摘要： A fast retransmission method by introducing the internal node under better channel condition to join the work of retransmission after the destination node sends out the packet loss indication for unicast services. Extended to serve multicast services, a system comprising a plurality of nodes utilizes the farthest node in each branch from the source to transmit an acknowledge signal when packet loss occurs. The system then enables the closest node to the acknowledging node to retransmit the requested packet, thereby improving the target packet hit rate and data integrity with less retransmission steps.
摘要翻译： 一种快速重传方法，在目的节点发出单播服务的丢包指示后，通过在更好的信道条件下引入内部节点加入重传工作。 扩展以服务多播服务，包括多个节点的系统利用来自源的每个分支中的最远节点在发生分组丢失时发送确认信号。 然后，系统使得到确认节点的最靠近的节点重传所请求的分组，从而以更少的重传步骤来提高目标分组命中率和数据完整性。
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2.发明申请APPARATUS AND METHOD FOR FAST RETRANSMISSION IN A POWER LINE COMMUNICATION NETWORK 有权电力线通信网络中快速恢复的装置和方法公开(公告)号：US20100257420A1
公开(公告)日：2010-10-07
申请号：US12734591
申请日：2008-11-11
申请人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
发明人： Jian Feng Chen , Zhi Gang Zhang , Yan Feng Zhang , Li Zou
CPC分类号： H04L1/1867 , H04L2001/0097
摘要： A fast retransmission method by introducing the internal node under better channel condition to join the work of retransmission after the destination node sends out the packet loss indication for unicast services. Extended to serve multicast services, a system comprising a plurality of nodes utilizes the farthest node in each branch from the source to transmit an acknowledge signal when packet loss occurs. The system then enables the closest node to the acknowledging node to retransmit the requested packet, thereby improving the target packet hit rate and data integrity with less retransmission steps.
摘要翻译： 一种快速重传方法，在目的节点发出单播服务的丢包指示后，通过在更好的信道条件下引入内部节点加入重传工作。 扩展以服务多播服务，包括多个节点的系统利用来自源的每个分支中的最远节点在发生分组丢失时发送确认信号。 然后，系统使得到确认节点的最靠近的节点重传所请求的分组，从而以更少的重传步骤来提高目标分组命中率和数据完整性。
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公开(公告)号：US20100157835A1
公开(公告)日：2010-06-24
申请号：US12655112
申请日：2009-12-23
申请人： Yan Feng Zhang , Jian Feng Chen , Li Zou
发明人： Yan Feng Zhang , Jian Feng Chen , Li Zou
摘要： It is provided a method for determining channel quality for a second channel, wherein, the second channel is overlapping with a first channel, the method comprising the steps of sending a request message through the first channel; receiving a response message on the second channel in response to the request message through the first channel; and determining the channel quality of the second channel based on the response message on the second channel. It can be used to determine the channel quality of at least one channel by sending a single message through the first channel.
摘要翻译： 提供了一种用于确定第二信道的信道质量的方法，其中，所述第二信道与第一信道重叠，所述方法包括以下步骤：通过所述第一信道发送请求消息; 响应于通过第一信道的请求消息在第二信道上接收响应消息; 以及基于所述第二信道上的所述响应消息来确定所述第二信道的信道质量。 它可以用于通过发送单个消息通过第一个信道来确定至少一个信道的信道质量。
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公开(公告)号：US20100290391A1
公开(公告)日：2010-11-18
申请号：US12735248
申请日：2008-12-15
申请人： Lin Xiang Cheng , Zhi Gang Zhang , Xian Lei Wang , Li Zou
发明人： Lin Xiang Cheng , Zhi Gang Zhang , Xian Lei Wang , Li Zou
IPC分类号： H04W40/00
CPC分类号： H04L61/2038 , H04L29/12254 , H04L29/12839 , H04L61/6022 , H04W8/26 , H04W48/18 , H04W88/06
摘要： The present invention provides an apparatus and method for concurrently accessing multiple wireless networks, comprising: a host for allocating a plurality of virtual MAC addresses based on the number of the wireless networks to be accessed, and a plurality of virtual MAC devices each having one of the virtual MAC addresses allocated by the host, for accessing the multiple wireless networks concurrently; wherein a physical address of the apparatus is set as a transmitter or receiver address of frames for accessing the multiple wireless networks concurrently.
摘要翻译： 本发明提供了一种用于同时访问多个无线网络的装置和方法，包括：主机，用于基于要访问的无线网络的数量分配多个虚拟MAC地址;以及多个虚拟MAC设备，每个虚拟MAC设备各自具有 由主机分配的虚拟MAC地址，用于同时访问多个无线网络; 其中所述设备的物理地址被设置为用于同时访问所述多个无线网络的帧的发送器或接收器地址。
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公开(公告)号：US08934330B2
公开(公告)日：2015-01-13
申请号：US13519577
申请日：2009-12-29
CPC分类号： H04L27/2647 , H04L25/0204 , H04L25/022 , H04L25/0222 , H04L25/0232
摘要： The present invention provides a method for channel estimation used in a receiver of a multi-carrier communication system, including: receiving a multi-carrier symbols from a transmitter of the multi-carrier communication system; and obtaining channel information of sub-carriers carrying data of the multi-carrier symbols, using selectively time direction interpolation and frequency direction interpolation for channel information of a plurality of scatter pilots of the multi-carrier symbols.
摘要翻译： 本发明提供一种用于多载波通信系统的接收机中的信道估计方法，包括：从多载波通信系统的发射机接收多载波符号; 以及使用多载波符号的多个散射导频的信道信息选择性地进行时间内插和频率方向插值来获得承载多载波符号数据的子载波的信道信息。
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6.发明授权Serial concatenation of trellis coded modulation and an inner non-binary LDPC code 有权网格编码调制的串行级联和内部非二进制LDPC码公开(公告)号：US08793551B2
公开(公告)日：2014-07-29
申请号：US12737107
申请日：2009-06-24
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang
IPC分类号： H03M13/00
CPC分类号： H03M13/256 , H03M13/1171 , H03M13/253 , H04L1/0057 , H04L1/006 , H04L1/0065 , H04L27/3416 , H04L27/38
摘要： A concatenated coded modulation communication system and method combines Trellis Coded Modulation with non-Gray code constellation mapping, interleaving, and non-binary Low Density Parity Check coded channel modulation with Gray code constellation mapping to improve error performance.
摘要翻译： 串联编码调制通信系统和方法将格雷码编码调制与非格雷码组合映射，交错和非二进制低密度奇偶校验编码信道调制与格雷码星座映射相结合，以改善误码性能。
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7.发明授权Data reception using low density parity check coding and constellation mapping 有权数据接收使用低密度奇偶校验编码和星座映射公开(公告)号：US08660203B2
公开(公告)日：2014-02-25
申请号：US13388820
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04B7/02
CPC分类号： H04L27/38 , H03M13/655 , H03M13/6552 , H04L27/2647 , H04L27/3405 , H04L27/3488
摘要： Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要翻译： 现代编码和调制技术大大提高了信号的发送和接收。 描述了一种方法，包括接收将信号解映射到第一和第二子流中的信号，使用低密度奇偶校验解码过程对第一和第二子流进行解码，以及将第一和第二解码子流合并成单个数据流。 描述了一种装置，其包括接收将信号中的调制符号解映射成第一和第二子流的信号的符号解映射器，第一解码器，其在第一解码时使用低密度奇偶校验编码处理对第一子流进行解码 速率，以第二编码速率解码第二子流的第二解码器，以及将第一子流和第二子流组合成单个数据流的组合器。
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8.发明授权公开(公告)号：US08385473B2
公开(公告)日：2013-02-26
申请号：US12450215
申请日：2007-03-16
IPC分类号： H04L27/00
CPC分类号： H04L27/0012 , H04L27/2601
摘要： A receiver supports a single carrier (SC) form of modulation and a multi-carrier form of modulation such as orthogonal frequency division multiplexing (OFDM). Upon receiving a signal, the receiver determines a maximum fluctuation range (MFR) as a function of at least a fourth-order cumulant of a received signal; and classifies a modulation type of the received signal as a function of the determined maximum fluctuation range. After determining the modulation type of the received signal, the receiver switches to that modulation mode to recover data from the received signal.
摘要翻译： 接收机支持单载波（SC）形式的调制和诸如正交频分复用（OFDM）的多载波调制形式。 在接收到信号时，接收机确定作为接收信号的至少四阶累积量的函数的最大波动范围（MFR）; 并且根据确定的最大波动范围对接收信号的调制类型进行分类。 在确定接收信号的调制类型之后，接收机切换到该调制模式以从接收到的信号中恢复数据。
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公开(公告)号：US20120287803A1
公开(公告)日：2012-11-15
申请号：US13519577
申请日：2009-12-29
IPC分类号： H04L12/26
CPC分类号： H04L27/2647 , H04L25/0204 , H04L25/022 , H04L25/0222 , H04L25/0232
摘要： The present invention provides a method for channel estimation used in a receiver of a multi-carrier communication system, including: receiving a multi-carrier symbols from a transmitter of the multi-carrier communication system; and obtaining channel information of sub-carriers carrying data of the multi-carrier symbols, using selectively time direction interpolation and frequency direction interpolation for channel information of a plurality of scatter pilots of the multi-carrier symbols.
摘要翻译： 本发明提供一种用于多载波通信系统的接收机中的信道估计方法，包括：从多载波通信系统的发射机接收多载波符号; 以及使用多载波符号的多个散射导频的信道信息选择性地进行时间内插和频率方向插值来获得承载多载波符号数据的子载波的信道信息。
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10.发明申请APPARATUS AND METHOD FOR REMOVING COMMON PHASE ERROR IN A DVB-T/H RECEIVER 有权在DVB-T / H接收机中移除通用相位误差的装置和方法公开(公告)号：US20100119013A1
公开(公告)日：2010-05-13
申请号：US12452407
申请日：2007-06-29
IPC分类号： H04L27/22
CPC分类号： H04L27/2647 , H04L25/022 , H04L25/03159 , H04L27/3854
摘要： A receiver is a Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H) receiver. The DVB-T/H receiver comprises a fast fourier transform (FFT) operative on a signal for providing an FFT output signal comprising a number of samples; a spectrum shifter for reordering the samples in the FFT output signal to provide a spectrum shifted signal; and a phase corrector for estimating a phase error from the FFT output signal and for correcting a phase of the spectrum shifted signal in accordance with the estimated phase error.
摘要翻译： 接收机是数字视频广播地面/手持（DVB-T / H）接收机。 DVB-T / H接收机包括对信号进行操作的快速傅里叶变换（FFT），用于提供包括多个样本的FFT输出信号; 用于对FFT输出信号中的采样进行重新排序以提供频谱移位信号的频谱移位器; 以及相位校正器，用于根据所估计的相位误差估计来自FFT输出信号的相位误差并用于校正频移信号的相位。
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