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31. 发明申请

US20070143656A1 LDPC concatenation rules for IEEE 802.11n system with packets length specified in octets 失效
标题翻译： IEEE 802.11n系统的LDPC级联规则，其分组长度以八位字节指定
公开(公告)号：US20070143656A1
公开(公告)日：2007-06-21
申请号：US11313906
申请日：2005-12-20
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H03M13/00
CPC分类号： H03M13/1102 , H03M13/31 , H03M13/618 , H03M13/6362
摘要： An improved LDPC encoding with concatenation rule and code size with packet lengths specified in octets is provided. The LDPC block size is selected to be an integer number of OFDM tones. The concatenation rule is an improvement of the shortening and puncturing scheme for low data rate. The improvement is two fold. First, the code length is selected based on the number of transmitted information bits in octets (HTLENGTH). Second, it is determined whether one extra OFDM symbol padding should be added based on the number of shortening bits in the last codeword and the available padding bits in the last OFDM symbol.
摘要翻译：提供了具有以字节指定的分组长度的级联规则和码大小的改进的LDPC编码。 LDPC块大小被选择为整数个OFDM音调。连接规则是低数据速率缩短和打孔方案的改进。改善是两倍。首先，基于八位字节（HTLENGTH）中发送的信息位的数量来选择代码长度。第二，确定是否应该基于最后一个码字中的缩短比特数和最后一个OFDM符号中的可用填充比特来添加一个额外的OFDM符号填充。

32. 发明申请

US20070143655A1 LDPC concatenation rules for IEEE 802.11n system with packets length specified in OFDM symbols 失效
标题翻译：用于具有在OFDM符号中指定的分组长度的IEEE 802.11n系统的LDPC级联规则
公开(公告)号：US20070143655A1
公开(公告)日：2007-06-21
申请号：US11313402
申请日：2005-12-20
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H03M13/00
CPC分类号： H03M13/1102 , H03M13/31 , H03M13/618 , H03M13/6362 , H04L1/0041 , H04L1/0057 , H04L1/0068 , H04L1/0083 , H04L1/0625 , H04L27/2602
摘要： A method of concatenation for LDPC encoding in an OFDM wireless system selects codewords based on the data packet payload size, wherein the payload size is the number of transmitted information bits in octets. For low transmission rates, shortening and puncturing across all codewords within the packet is applied to minimize OFDM symbol padding. For high transmission rates, only shortening across all codewords within the packet is applied to minimize OFDM symbol padding.
摘要翻译： OFDM无线系统中的LDPC编码的级联方法基于数据分组有效载荷大小来选择码字，其中有效载荷大小是以八位字节为单位的发送信息比特数。对于低传输速率，应用分组内的所有码字的缩短和穿孔以最小化OFDM符号填充。对于高传输速率，仅应用分组内的所有码字的缩短以最小化OFDM符号填充。

33. 发明申请

US20060227891A1 Method of channel estimation for MIMO-OFDM using phase rotated low overhead preamble 审中-公开
标题翻译：使用相位旋转低开销前导码的MIMO-OFDM信道估计方法
公开(公告)号：US20060227891A1
公开(公告)日：2006-10-12
申请号：US11101963
申请日：2005-04-07
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H04B7/02 , H04J11/00
CPC分类号： H04B7/0417 , H04B7/0626 , H04L25/0226 , H04L27/2613
摘要： A low overhead long preamble and the corresponding channel estimator for MIMO-OFDM systems that are backward compatible with current 802.11a systems. The preamble has a first training sequence and a second training sequence, wherein the second training sequence is a phase rotation of the first training sequence. The first training sequence comprises a 802.11a training sequence. The preamble can further include multiple training sequences, wherein each training sequence is a different phase rotation of the first training sequence.
摘要翻译：低开销长前导码和与当前802.11a系统向后兼容的MIMO-OFDM系统的相应信道估计器。前导码具有第一训练序列和第二训练序列，其中第二训练序列是第一训练序列的相位旋转。第一训练序列包括802.11a训练序列。前导码还可以包括多个训练序列，其中每个训练序列是第一训练序列的不同相位旋转。

34. 发明授权

US08917208B2 System and method for efficient transmit and receive beamforming protocol with heterogeneous antenna configuration 有权
标题翻译：用于异构天线配置的高效发射和接收波束成形协议的系统和方法
公开(公告)号：US08917208B2
公开(公告)日：2014-12-23
申请号：US13154326
申请日：2011-06-06
申请人： Huaning Niu , Pengfei Xia , Chiu Ngo
发明人： Huaning Niu , Pengfei Xia , Chiu Ngo
IPC分类号： H01Q3/00 , H04B7/00 , H01Q3/26 , H04B7/06 , H04B7/04
CPC分类号： H01Q3/2605 , H01Q3/26 , H04B7/043 , H04B7/0691
摘要： A system and method of training antennas for two devices having heterogeneous antenna configurations in a wireless network is disclosed. The method includes communicating one or more estimation training sequences between two devices via a phased array antenna and a switched array antenna, wherein a beamforming vector of the phased array antenna is switched between phase vectors within a set of weight vectors while the switched array antenna is switched within a plurality of antenna sectors. The method further includes tuning at least one of the phase array and switched array antennas with an antenna parameter selected based at least in part on the one or more estimation training sequences. The method further includes communicating data messages via at least one of the phase array and switched array antennas so tuned.
摘要翻译：公开了一种用于在无线网络中具有异构天线配置的两个设备的天线的训练系统和方法。该方法包括经由相控阵天线和切换阵列天线在两个设备之间通信一个或多个估计训练序列，其中相控阵天线的波束成形向量在一组加权矢量内的相位矢量之间切换，而切换阵列天线为在多个天线扇区内切换。该方法还包括使用至少部分地基于一个或多个估计训练序列选择的天线参数调谐相位阵列和开关阵列天线中的至少一个。该方法还包括经由如此调谐的相位阵列和开关阵列天线中的至少一个传送数据消息。

35. 发明授权

US07826436B2 Method and system for wireless communication of data with a fragmentation pattern and low-density parity-check codes 有权
标题翻译：用于具有分段模式和低密度奇偶校验码的数据的无线通信的方法和系统
公开(公告)号：US07826436B2
公开(公告)日：2010-11-02
申请号：US11906193
申请日：2007-10-01
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H04B7/216 , H04J3/24 , H04L12/28
CPC分类号： H04L1/1867 , H03M13/1102 , H04L1/0084 , H04L1/1819 , H04L43/0823
摘要： A method and system for wireless data communication is provided, which involves constructing a data payload containing data, partitioning the data payload into fragments, performing LDPC encoding on each fragment, and transmitting the data payload including encoded fragments over a wireless channel.
摘要翻译：提供了一种用于无线数据通信的方法和系统，其包括构建包含数据的数据有效载荷，将数据有效载荷分割成片段，对每个片段执行LDPC编码，以及通过无线信道发送包括编码片段的数据有效载荷。

36. 发明授权

US07661037B2 LDPC concatenation rules for IEEE 802.11n systems 失效
标题翻译： IEEE 802.11n系统的LDPC级联规则
公开(公告)号：US07661037B2
公开(公告)日：2010-02-09
申请号：US11261527
申请日：2005-10-27
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H03M13/31
CPC分类号： H03M13/1102 , H03M13/6356 , H03M13/6362
摘要： Improved LDPC code structure and concatenation rules for IEEE 802.11n systems, providing two code sets per rate, one longer codeword and one shorter codeword. The longer codeword length is determined by the system parameters, while the shorter codeword length is ⅓ of the longer codeword length. A LDPC concatenation rule is provided, wherein a maximum of one extra OFDM symbol is added in padding in order to reduce the code set granularity. In order to provide improved code performance, more bits are shortened compared with puncturing, by transmitting the extra OFDM symbol. Further, all the required puncturing and shortening bits are distributed across all codewords. This scheme provides a preferred tradeoff between code complexity and over-the-air efficiency.
摘要翻译：针对IEEE 802.11n系统的改进的LDPC码结构和级联规则，每速率提供两个码集，一个更长的码字和一个较短的码字。较长的码字长度由系统参数确定，而较短的码字长度是较长码字长度的1/3。提供了一种LDPC级联规则，其中在填充中添加最多一个额外的OFDM符号，以便减少代码集粒度。为了提供改进的代码性能，通过发送额外的OFDM符号，与打孔相比，更多的比特被缩短。此外，所有所需的打孔和缩短比特分布在所有码字上。该方案提供了代码复杂度和空中效率之间的首选权衡。

37. 发明授权

US07657244B2 Methods of antenna selection for downlink MIMO-OFDM transmission over spatial correlated channels 失效
标题翻译：通过空间相关信道进行下行MIMO-OFDM传输的天线选择方法
公开(公告)号：US07657244B2
公开(公告)日：2010-02-02
申请号：US11261726
申请日：2005-10-27
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H04B1/06 , H04B7/02 , H04L5/04
CPC分类号： H04B7/04 , H04B7/0608 , H04B7/0805 , H04L1/06 , H04L27/2601
摘要： An antenna selection technique (transmitter/receiver antenna selection) that reduces the cost of the MIMO system while maintaining high performance. A combined selection algorithm for MIMO-OFDM is provided which offers the best tradeoff between spatial correlation and instantaneous SNR. In one case, antenna selection is based on instant channel information. In another case antenna is based on statistical channel state information. In another case, antenna selection is based on a hybrid of instant channel state information and statistical channel state information.
摘要翻译：天线选择技术（发射机/接收机天线选择），可以在保持高性能的同时降低MIMO系统的成本。提供了用于MIMO-OFDM的组合选择算法，其提供空间相关性和瞬时SNR之间的最佳权衡。在一种情况下，天线选择基于即时信道信息。在另一种情况下，天线基于统计信道状态信息。在另一种情况下，天线选择基于即时信道状态信息和统计信道状态信息的混合。

38. 发明申请

US20090046012A1 SYSTEM AND METHOD FOR TRAINING THE SAME TYPE OF DIRECTIONAL ANTENNAS THAT ADAPTS THE TRAINING SEQUENCE LENGTH TO THE NUMBER OF ANTENNAS 有权
标题翻译：用于训练相同类型的方向天线的系统和方法，其将训练序列长度适应于天线的数量
公开(公告)号：US20090046012A1
公开(公告)日：2009-02-19
申请号：US12189749
申请日：2008-08-11
申请人： Huaning Niu , Pengfei Xia , Chiu Ngo
发明人： Huaning Niu , Pengfei Xia , Chiu Ngo
IPC分类号： H01Q3/00
CPC分类号： H01Q3/2605 , H01Q3/26 , H04B7/043 , H04B7/0691
摘要： Systems and methods of training antennas for two devices equipped with phased array antennas in a wireless network are disclosed. In one embodiment, the methods include transmitting a plurality of estimation training sequences from a transmit phased array antenna to a receive phased array antenna, wherein a length of at least one of the plurality of training sequences is adapted to a number of antenna elements at one of the transmit and receive phased array antennas. The methods further include transmitting data to the receive phased array antenna via the transmit phased array antenna tuned with a transmit beamforming vector (BV) selected based at least in part on the plurality of estimation training sequences.
摘要翻译：公开了在无线网络中配备有相控阵天线的两个设备的天线训练的系统和方法。在一个实施例中，所述方法包括将多个估计训练序列从发射相控阵列天线发送到接收相控阵列天线，其中所述多个训练序列中的至少一个训练序列的长度适合于一个天线元件的发射和接收相控阵天线。所述方法还包括经由通过至少部分地基于多个估计训练序列选择的发射波束形成向量（BV）调谐的发射相控阵列天线将数据发射到接收相控阵天线。

39. 发明申请

US20090016359A1 SYSTEM AND METHOD FOR PROCESSING HIGH DEFINITION VIDEO DATA TO BE TRANSMITTED OVER A WIRELESS MEDIUM 审中-公开
标题翻译：用于处理高分辨率视频数据的系统和方法将通过无线介质传输
公开(公告)号：US20090016359A1
公开(公告)日：2009-01-15
申请号：US11776506
申请日：2007-07-11
申请人： Huaning Niu , Pengfei Xia , Chiu Ngo
发明人： Huaning Niu , Pengfei Xia , Chiu Ngo
IPC分类号： H04L12/56
CPC分类号： H04L27/34 , G09G2370/16 , H04L1/0065 , H04N21/43637
摘要： A system and method for processing high definition video data to be transmitted over a wireless medium is disclosed. In one embodiment, the system includes i) at least one convolutional encoder configured to input a plurality of video data streams and output a plurality of encoded data streams, each of the plurality of encoded data streams comprises a plurality of data bits, ii) at least one multiplexer configured to multiplex the plurality of encoded data streams into a multiplexed data stream based on a multiplexing order, wherein the multiplexing order represents the number of data bits multiplexed together at one time and iii) a quadrature amplitude modulation (QAM) mapper configured to perform QAM mapping for the multiplexed data stream. At least one embodiment provides a simple, yet effective, solution using an s-group multiplexing instead of bit-by-bit multiplexing.
摘要翻译：公开了一种用于处理通过无线介质发送的高分辨率视频数据的系统和方法。在一个实施例中，该系统包括i）至少一个卷积编码器，其被配置为输入多个视频数据流并输出多个编码数据流，所述多个编码数据流中的每一个包括多个数据位，ii）至少一个多路复用器，被配置为基于多路复用顺序将多个编码数据流多路复用为多路复用数据流，其中复用顺序表示一次复用在一起的数据比特数，以及iii）正交幅度调制（QAM）映射器配置以执行复用数据流的QAM映射。至少一个实施例提供了使用s组多路复用而不是逐位复用的简单而有效的解决方案。

40. 发明申请

US20080232485A1 Method and system for improved power loading by steering and power loading the preamble in beamforming wireless communication systems 审中-公开
标题翻译：用于通过在波束形成无线通信系统中通过转向和功率加载前导码来改善功率负载的方法和系统
公开(公告)号：US20080232485A1
公开(公告)日：2008-09-25
申请号：US11726261
申请日：2007-03-21
申请人： Huaning Niu , Chiu Ngo
发明人： Huaning Niu , Chiu Ngo
IPC分类号： H04K1/10
CPC分类号： H04L1/0656 , H04B7/0417 , H04B7/0439 , H04B7/0443 , H04L1/0003 , H04L1/0009 , H04L1/0048 , H04L1/0631 , H04L5/0023
摘要： A power-loading process for wireless communications is provided. The power-loading process includes parsing data into multiple spatial data streams, beam-steering the spatial data streams and a preamble with both a power loading level and channel eigenvalues, for transmission over a plurality of transmission antennas at a wireless transmitter. The process further includes receiving the transmission streams via receive antennas at a wireless receiver and estimating each equivalent channel based on the received preamble to obtain the CSI. The obtained CSI includes the transmitter power loading information for the receiver. The receiver utilizes the power loading information in the obtained CSI, eliminating the need for the detecting power loading from pilot tones at the receiver.
摘要翻译：提供了一种用于无线通信的功率加载过程。功率加载过程包括将数据解析成多个空间数据流，对空间数据流进行波束导向和具有功率负载水平和信道特征值的前同步码，用于在无线发射机上的多个发射天线上传输。该过程进一步包括经由无线接收器处的接收天线接收传输流，并且基于所接收的前导码估计每个等效信道以获得CSI。所获得的CSI包括用于接收机的发射机功率负载信息。接收机利用所获得的CSI中的功率负载信息，消除了在接收机处从导频音调检测功率负载的需要。

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