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21. 发明申请

US20100239038A1 METHOD AND SYSTEM TO REDUCE PAPR IN SINGLE CARRIER AND SCBT COMMUNICATIONS SYSTEMS 有权
标题翻译：减少单载波和短波通信系统中PAPR的方法和系统
公开(公告)号：US20100239038A1
公开(公告)日：2010-09-23
申请号：US12441592
申请日：2007-09-21
申请人： Seyed-Alireza Seyedi-Esfahani
发明人： Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04L5/12
CPC分类号： H04L27/3483 , H04L27/2082 , H04L27/3411
摘要： The system (800), transmitter (600), receiver (700), and method of the present invention provide a technique to reduce the Peak to Average Power Ratio (PAPR) for the single carrier and single carrier block transmission (SCBT) modulations, especially when non-symmetric constellations (e.g. BPSK) are used. The constellation used for the modulation of each symbol, is rotated by a phase. Only the constellation is rotated, and the mapping of the bits into each constellation may or may not be similar. Further, in alternative embodiments the modulated bits are either encoded or not encoded. In a further alternative embodiment, a Trellis Coded Modulation (TCM) is used. Because the phase rotation is known a priori, or can be determined from a priori known information, it can easily be corrected at the receiver.
摘要翻译：本发明的系统（800），发射机（600），接收机（700）和方法提供了降低单载波和单载波块传输（SCBT）调制的峰均功率比（PAPR）的技术，特别是当使用非对称星座（例如BPSK）时。用于每个符号的调制的星座旋转相位。只有星座旋转，并且位到每个星座的映射可以是或者可能不相似。此外，在替代实施例中，调制比特被编码或不被编码。在另一替代实施例中，使用网格编码调制（TCM）。因为相位旋转是先验已知的，或者可以从先验已知信息确定，所以可以容易地在接收机处校正相位旋转。

22. 发明申请

US20100146363A1 METHOD AND SYSTEM OF SINGLE CARRIER BLOCK TRANSMISSION WITH PARALLEL ENCODING AND DECODING 有权
标题翻译：具有并行编码和解码的单载波块传输的方法和系统
公开(公告)号：US20100146363A1
公开(公告)日：2010-06-10
申请号：US12522967
申请日：2008-01-17
申请人： Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani , Richard Chen , Hong Zhai , Chun-Ting Chou
发明人： Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani , Richard Chen , Hong Zhai , Chun-Ting Chou
IPC分类号： H03M13/05 , H04K1/10 , G06F11/10 , H03M13/27
CPC分类号： H04L1/0071 , H04L1/0043 , H04L1/0052
摘要： A Single Carrier Block Transmission (SCBT) system employs an inherently parallel approach to error correction processing. At the transmission system (200), an incoming data stream is split (210) into P parallel data streams, each having a data rate equal to a fraction of the incoming data stream's data rate. The parallel data streams are then each separately encoded (220) in P parallel encoding processes (beneficially, using P parallel encoders (222)). The P separately encoded data streams are then merged (330), interleaved (320), and mapped (310) into a single stream of encoded symbols, which are transmitted to the receiver using an arbitrary modulation (240) and transmission scheme. At the receiver (255), the received data stream is de-interleaved (350) and split into P encoded data streams, which are then decoded (285) using P parallel decoders. Then, the decoded data streams are combined or multiplexed (295) into a single data stream.
摘要翻译：单载波块传输（SCBT）系统采用固有的并行方法进行纠错处理。在传输系统（200）处，输入数据流被分离（210）为P个并行数据流，每个数据流的数据速率等于输入数据流的数据速率的一小部分。然后，并行数据流在P个并行编码处理（有利地，使用P个并行编码器（222））中分别编码（220）。然后将P个分离编码的数据流合并（330），交织（320）和映射（310）到编码符号的单个流中，其使用任意调制（240）和传输方案发送到接收机。在接收机（255）处，对接收到的数据流进行解交织（350）并分割成P个编码数据流，然后使用P个并行解码器解码（285）。然后，解码的数据流被组合或多路复用（295）到单个数据流中。

23. 发明申请

US20100046450A1 COMMUNICATION DEVICE AND METHOD OF COMMUNICATION THAT BONDS COMMUNICATION CHANNELS TOGETHER 有权
标题翻译：通信设备和通信方式通信通信通信
公开(公告)号：US20100046450A1
公开(公告)日：2010-02-25
申请号：US12522935
申请日：2008-01-14
申请人： Seyed-Alireza Seyedi-Esfahani , Chun-Ting Chou
发明人： Seyed-Alireza Seyedi-Esfahani , Chun-Ting Chou
IPC分类号： H04W72/12
CPC分类号： H04W72/02 , H04W28/20
摘要： A wireless device (100) communicates in a wireless system by selecting a communication channel (202) for communication, identifying a control channel or control channels (204) designated for communication of control information for the selected communication channel, and listening for the control information (212) on the control channel to determine if the selected communication channel is bonded with any other communication channel. When control information is received via the control channel(s) indicating that the selected communication channel is bonded with at least one other communication channel, then the wireless device abstains from communication on the selected communication channel, or communicates in a narrowband mode. When control information is received via the control channel(s) indicating that the selected communication channel is not bonded with another communication channel, or when no control information is received via the control channel, then the wireless device communicates via the selected communication channel.
摘要翻译：无线设备（100）通过选择用于通信的通信信道（202），识别指定用于通信所选择的通信信道的控制信息的控制信道或控制信道（204）以及监听控制信息来在无线系统中进行通信（212），以确定所选择的通信信道是否与任何其他通信信道绑定。当经由指示所选择的通信信道与至少一个其他通信信道绑定的控制信道接收到控制信息时，无线设备在选择的通信信道上放弃通信，或以窄带模式进行通信。当经由指示所选择的通信信道未与另一通信信道绑定的控制信道接收到控制信息时，或者当经由控制信道未接收到控制信息时，无线设备经由所选择的通信信道进行通信。

24. 发明申请

US20100002792A1 SYSTEM, APPARATUS AND METHOD FOR INTERLEAVING DATA BITS OR SYMBOLS 审中-公开
标题翻译：用于交换数据位或符号的系统，装置和方法
公开(公告)号：US20100002792A1
公开(公告)日：2010-01-07
申请号：US12522942
申请日：2008-01-16
申请人： Seyed-Alireza Seyedi-Esfahani
发明人： Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04K1/10 , G06F12/00 , H03M13/17 , G06F11/10 , H03M13/23
CPC分类号： H03M13/2721 , H04L1/0071 , H04L5/0007
摘要： A data transmission system respectively encodes successive bits representing information to be transmitted. An interleaver receives the bits from the encoder and interleaves the bits. The interleaver includes a memory and a memory read write controller configured to write the bits to the memory in accordance with a diagonal write pattern and to read the bits from the memory in a diagonal read pattern. A symbol mapper receives the interleaved bits and maps the encoded interleaved bits into symbols using a transmission format.
摘要翻译：数据传输系统分别对表示要发送的信息的连续位进行编码。交织器从编码器接收比特并对比特进行交织。交织器包括存储器和存储器读取写入控制器，其被配置为根据对角线写入模式将位写入存储器，并以对角线读取模式从存储器读取位。符号映射器接收交织的比特，并使用传输格式将编码的交织比特映射成符号。

25. 发明授权

US08494087B2 Method and system to reduce PAPR in single carrier and SCBT communications systems 有权
标题翻译：降低单载波和SCBT通信系统PAPR的方法和系统
公开(公告)号：US08494087B2
公开(公告)日：2013-07-23
申请号：US12441592
申请日：2007-09-21
申请人： Seyed-Alireza Seyedi-Esfahani
发明人： Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04L27/36
CPC分类号： H04L27/3483 , H04L27/2082 , H04L27/3411
摘要： The system (800), transmitter (600), receiver (700), and method of the present invention provide a technique to reduce the Peak to Average Power Ratio (PAPR) for the single carrier and single carrier block transmission (SCBT) modulations, especially when non-symmetric constellations (e.g. BPSK) are used. The constellation used for the modulation of each symbol, is rotated by a phase. Only the constellation is rotated, and the mapping of the bits into each constellation may or may not be similar. Further, in alternative embodiments the modulated bits are either encoded or not encoded. In a further alternative embodiment, a Trellis Coded Modulation (TCM) is used. Because the phase rotation is known a priori, or can be determined from a priori known information, it can easily be corrected at the receiver.
摘要翻译：本发明的系统（800），发射机（600），接收机（700）和方法提供了降低单载波和单载波块传输（SCBT）调制的峰均功率比（PAPR）的技术，特别是当使用非对称星座（例如BPSK）时。用于每个符号的调制的星座旋转相位。只有星座旋转，并且位到每个星座的映射可以是或者可能不相似。此外，在替代实施例中，调制比特被编码或不被编码。在另一替代实施例中，使用网格编码调制（TCM）。因为相位旋转是先验已知的，或者可以从先验已知信息确定，所以可以容易地在接收机处校正相位旋转。

26. 发明授权

US08369449B2 Method and system of diversity transmission of data employing M-point QAM modulation 有权
标题翻译：使用M点QAM调制的数据分集传输的方法和系统
公开(公告)号：US08369449B2
公开(公告)日：2013-02-05
申请号：US12067337
申请日：2006-09-19
申请人： Seyed-Alireza Seyedi-Esfahani
发明人： Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04L27/36 , H04L27/00 , H03K9/00
CPC分类号： H04L27/362 , H04L25/067 , H04L27/3416 , H04L27/38
摘要： A method (600) of communicating a plurality of data bits over L diversity channels uses a constellation set comprising a plurality (L) of M-point quadrature amplitude modulation (QAM) constellations corresponding to the L diversity channels. The constellations do not exhibit overlapping data points, and provide full diversity. The method includes mapping (650) k*L data bits to L QAM transmission symbols in the L QAM constellation sets, and transmitting (660) the L QAM symbols where M=2k*L. Each of each of the k*L data bits is directly mapped into all of the L QAM symbols of the QAM constellation set, and for all combinations of k*L bits, changing a value of one of k*L data bits changes all of the L symbols.
摘要翻译：通过L个分集信道传送多个数据位的方法（600）使用包括对应于L个分集信道的多个（L）个M点正交幅度调制（QAM）星座的星座集。星座不显示重叠的数据点，并提供完整的多样性。该方法包括在L QAM星座集中映射（650）k * L个数据比特到L QAM发送符号，并且发送（660）L = Q = Q * k * L数据位中的每一个直接映射到QAM星座集的所有L QAM符号中，并且对于k * L位的所有组合，改变k * L个数据位中的一个的值改变全部 L个符号。

27. 发明申请

US20100124294A1 COST-EFFECTIVE PREAMBLE STRUCTURE FOR HIGH-SPEED COMMUNICATION OF PACKETIZED SYSTEMS 有权
标题翻译：封装系统高速通信的成本有效的前沿结构
公开(公告)号：US20100124294A1
公开(公告)日：2010-05-20
申请号：US12441634
申请日：2007-09-27
申请人： Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani
发明人： Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04L27/28
CPC分类号： H04L27/2614 , H04L27/261 , H04L27/2615
摘要： The system (700), apparatus (600), and method of the present invention provide an hierarchical pseudo-circularly symmetric and full circularly symmetric training sequence structure (100) for high-speed communication system. The hieratical pseudo-circularly symmetric part (101) is preferably used for burst detection, coarse frequency and timing error estimation and AGC gain setting. The full circularly symmetric part (102) is preferably used for channel estimation, fine frequency error estimation. The resulting sequence has a very good peak-to-average power (PAPR) property, making it suitable for many applications. The bandwidth efficiency is also improved due to using symmetric sequences.
摘要翻译：本发明的系统（700），装置（600）和方法提供了一种用于高速通信系统的分级伪圆对称和全循环对称训练序列结构（100）。仿真圆形对称部分（101）优选用于突发检测，粗频率和定时误差估计以及AGC增益设置。完全圆对称部分（102）优选用于信道估计，精细频率误差估计。所得到的序列具有非常好的峰均功率（PAPR）特性，使其适用于许多应用。由于使用对称序列，带宽效率也得到改善。

28. 发明申请

US20100080167A1 HANDSHAKING METHOD AND APPARATUS FOR OFDM SYSTEMS WITH UNKNOWN SUB-CHANNEL AVAILABILITY 有权
标题翻译：具有未知的子通道可用性的OFDM系统的方法和装置
公开(公告)号：US20100080167A1
公开(公告)日：2010-04-01
申请号：US11993530
申请日：2006-06-27
申请人： Carlos Cordeiro , Seyed-Alireza Seyedi-Esfahani
发明人： Carlos Cordeiro , Seyed-Alireza Seyedi-Esfahani
IPC分类号： H04W40/00 , H04L27/28
CPC分类号： H04L5/0058 , H04L5/0007 , H04L5/0044 , H04L27/2613
摘要： A method and device for determining available communication sub-channels in an OFDM communication system is disclosed. The method comprises the steps of transmitting, on at least one first sub-channel (207), information (210) regarding sub-channels available for a first transmission of at least one first data packet (245), receiving, on at least one second sub-channel (250), information (225) regarding sub-channels available for a second transmission, determining at least one set of available sub-channels based on the information regarding the first and second transmissions (430). In one aspect of the invention, at least one set of the determined available sub-channels is further provided to a receiving system. The information is being provided in a separate transmission, or within a data packet, or within each subsequent data packet or in selected data packets.
摘要翻译：公开了一种用于在OFDM通信系统中确定可用通信子信道的方法和设备。该方法包括以下步骤：在至少一个第一子信道（207）上发送关于可用于第一传输至少一个第一数据分组（245）的子信道的信息（210），在至少一个第二子信道（250），关于可用于第二传输的子信道的信息（225），基于关于第一和第二传输的信息确定至少一组可用子信道（430）。在本发明的一个方面，进一步将至少一组确定的可用子信道提供给接收系统。该信息在单独的传输中，或在数据分组内，或在每个后续数据分组内或在选定的数据分组中提供。

29. 发明申请

US20080310519A1 System, Apparatus, and Method for Single-Carrier Block Transmission with Adaptive Guard Interval 审中-公开
标题翻译：具有自适应保护间隔的单载波块传输的系统，装置和方法
公开(公告)号：US20080310519A1
公开(公告)日：2008-12-18
申请号：US12096626
申请日：2006-12-05
申请人： Seyed-Alireza Seyedi-Esfahani , Vasanth Gaddam , Dagnachew Birru
发明人： Seyed-Alireza Seyedi-Esfahani , Vasanth Gaddam , Dagnachew Birru
IPC分类号： H04B1/66
CPC分类号： H04L1/0006 , H04L1/0025 , H04L1/1671 , H04L27/2607
摘要： The system, apparatus and method of the present invention provides a single carrier block transmission with guard interval as a means of communications over multi-path channels that enables frequency domain equalization, and therefore, has many of the advantages of OFDM, but does not have some of the drawbacks such as high PAPR and the need for high resolution ADCs. While the use of guard intervals in single carrier communications enables low complexity detection of the signal, it reduces bandwidth efficiency. The present invention improves the bandwidth efficiency by adjusting the length of the guard interval adaptively. Also, by allowing both time-domain and frequency domain equalizations, besides improving bandwidth efficiency, the inventions allows for great flexibility in receiver design.
摘要翻译：本发明的系统，装置和方法提供了具有保护间隔的单载波块传输，作为能够进行频域均衡的多径信道上的通信手段，因此具有许多OFDM的优点，但是没有一些缺点，如高PAPR和高分辨率ADC的需要。虽然在单载波通信中使用保护间隔可以实现对信号的低复杂度检测，但可以降低带宽效率。本发明通过自适应地调整保护间隔的长度来提高带宽效率。此外，通过允许时域和频域均衡，除了提高带宽效率之外，本发明允许在接收机设计中具有极大的灵活性。

30. 发明申请

US20080299931A1 System, Apparatus, and Method for Multi-Band Ofdm Systems with Receiver Antenna Selection Per Sub-Band 有权
标题翻译：具有每子带接收天线选择的多频带系统的系统，装置和方法
公开(公告)号：US20080299931A1
公开(公告)日：2008-12-04
申请号：US12096982
申请日：2006-12-08
申请人： Jun Yang , Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani , Charles Razzell
发明人： Jun Yang , Dagnachew Birru , Seyed-Alireza Seyedi-Esfahani , Charles Razzell
IPC分类号： H04B7/08
CPC分类号： H04B7/0814 , H04B1/713 , H04L1/0606 , H04L1/0631 , H04L1/0668 , H04L27/2647
摘要： The present invention provides a system (300-400), apparatus (300-400), and method for an energy-based antenna selection technique in which the antenna that observes the largest SNR averaged over all carriers per sub-band (405) is selected for space-time coded MB-OFDM systems. Due to the frequency-selective nature of the system, different sub-band may have different channel gaining effect from the multi-path channels. We can perform energy-based antenna selection per sub-band, and the simulation results show that the proposed technique works not only for MB-OFDM UWB channels with shadowing, but also for the same channel without shadowing.
摘要翻译：本发明提供一种用于基于能量的天线选择技术的系统（300-400），装置（300-400）及其方法，其中观察每个子带（405）在所有载波上平均的最大SNR的天线是选择用于空时编码的MB-OFDM系统。由于系统的频率选择性，不同的子带可能具有来自多路径信道的不同信道增益效应。我们可以对每个子带进行基于能量的天线选择，仿真结果表明，该技术不仅可以用于具有阴影的MB-OFDM UWB信道，而且对于没有阴影的相同信道也是有效的。

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