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公开(公告)号：US20120236880A1
公开(公告)日：2012-09-20
申请号：US13485248
申请日：2012-05-31
IPC分类号： H04J3/00
CPC分类号： H04L27/2626 , H04L5/0007 , H04L5/0044 , H04L5/005 , H04L5/0092 , H04L25/0226 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04L27/2666 , H04N5/4401 , H04N21/2383 , H04N21/4345 , H04N21/4383 , H04N21/4385
摘要： A transmitting apparatus for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least two preamble patterns adjacent to each other in the frequency direction and at least two data patterns, said transmitting apparatus comprising a pilot mapper configured to map the same sequence of pilot signals on frequency carriers of each of said at least two preamble patterns in a frame, each preamble pattern having the same length, a data mapper configured to map data on frequency carriers of said at least two data patterns in a frame a transformer configured to transform said preamble patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and a transmitter configured transmit said transmission signal.
摘要翻译： 一种用于在多载波系统中基于帧结构发送信号的发送装置，每个帧包括在频率方向上彼此相邻的至少两个前导码模式和至少两个数据模式，所述发送装置包括导频映射器 在帧中的所述至少两个前导码模式中的每一个的频率载波上映射相同的导频信号序列，每个前导码模式具有相同的长度;数据映射器，被配置为将所述至少两个数据模式的频率载波上的数据映射到 帧，其被配置为将所述前导码模式和所述数据模式从频域变换到时域，以便生成时域传输信号，并且发射机被配置为发送所述传输信号。
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公开(公告)号：US20090304023A1
公开(公告)日：2009-12-10
申请号：US12437161
申请日：2009-05-07
IPC分类号： H04J3/00
CPC分类号： H04L27/2626 , H04L5/0007 , H04L5/0044 , H04L5/005 , H04L5/0092 , H04L25/0226 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04L27/2666 , H04N5/4401 , H04N21/2383 , H04N21/4345 , H04N21/4383 , H04N21/4385
摘要： The present invention relates to a transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least two training patterns adjacent to each other in the frequency direction and at least two data patterns, said transmitting apparatus comprisingpilot mapping means (55) adapted to map the same sequence of pilot signals on frequency carriers of each of said at least two training patterns in a frame, each training pattern having the same length, data mapping means (58, 58′, 58″) adapted to map data on frequency carriers of said at least two data patterns in a frame, transforming means (60) adapted to transform said training patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said transmission signal.The present invention further relates to a corresponding transmitting method and a frame pattern for a multi carrier system.
摘要翻译： 本发明涉及一种用于在多载波系统中基于帧结构发送信号的发送装置（54），每个帧包括在频率方向上彼此相邻的至少两个训练模式和至少两个数据模式， 所述发送装置包括导频映射装置（55），其适于在帧中的所述至少两个训练模式中的每一个的频率载波上映射相同序列的导频信号，每个训练模式具有相同的长度，数据映射装置（58,58 ，58“），其适于将数据映射在帧中的所述至少两个数据模式的频率载波上;变换装置（60），适于将所述训练模式和所述数据模式从频域变换到时域，以便 生成时域发送信号，以及适于发送所述发送信号的发送单元（61）。 本发明还涉及用于多载波系统的相应的发送方法和帧模式。
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公开(公告)号：US20120269201A1
公开(公告)日：2012-10-25
申请号：US13470986
申请日：2012-05-14
IPC分类号： H04L12/56
CPC分类号： H04L5/005 , H04L5/0064 , H04L25/0226 , H04L27/2613 , H04L27/2655
摘要： A transmitting apparatus for transmitting signals in a multi carrier system on the basis of a frame structure, each frame including at least one signalling pattern and one or more data patterns, said transmitting apparatus including frame forming means for arranging first signalling data in the at least one signalling pattern in a frame, and adapted to arrange data in the one or more data patterns in a frame, whereby the data of the one or more data patterns are arranged in data frames, each data frame comprising second signalling data and content data, transforming means for transforming the at least one signalling pattern and the one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means for transmitting the time domain transmission signal.
摘要翻译： 一种用于在多载波系统中基于帧结构发送信号的发送装置，每个帧包括至少一个信令模式和一个或多个数据模式，所述发送装置包括帧形成装置，用于至少在第一信令数据 帧中的一个信令模式，并且适于在帧中的一个或多个数据模式中排列数据，由此将一个或多个数据模式的数据排列在数据帧中，每个数据帧包括第二信令数据和内容数据， 变换装置，用于将至少一个信令模式和一个或多个数据模式从频域变换到时域，以产生时域传输信号;以及发送装置，用于发送时域传输信号。
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公开(公告)号：US20100135316A1
公开(公告)日：2010-06-03
申请号：US12563772
申请日：2009-09-21
CPC分类号： H04L5/005 , H04L5/0064 , H04L25/0226 , H04L27/2613 , H04L27/2655
摘要： The present invention relates to a transmitting apparatus (82) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least one signalling pattern and one or more data patterns, said transmitting apparatus (82) comprising frame forming means (59) adapted to arrange first signalling data in said at least one signalling pattern in a frame, and adapted to arrange data in said one or more data patterns in a frame, whereby the data of said one or more data patterns are arranged in data frames, each data frame comprising second signalling data and content data, transforming means (60) adapted to transform said at least one signalling pattern and said one or more data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal.The present invention further relates to a corresponding transmitting method and frame structure, as well as a receiving apparatus and method and a system and a method for transmitting and receiving signals.
摘要翻译： 本发明涉及一种用于在多载波系统中基于帧结构发送信号的发送设备（82），每个帧包括至少一个信令模式和一个或多个数据模式，所述发送设备（82）包括帧 形成装置（59），其适于在帧中的所述至少一个信令模式中布置第一信令数据，并且适于在帧中的所述一个或多个数据模式中布置数据，由此布置所述一个或多个数据模式的数据 在数据帧中，包括第二信令数据和内容数据的每个数据帧，适于将所述至少一个信令模式和所述一个或多个数据模式从频域变换到时域的变换装置（60），以产生时间 域发送信号，以及适于发送所述时域发送信号的发送单元（61）。 本发明还涉及相应的发送方法和帧结构，以及用于发送和接收信号的接收装置和方法以及系统和方法。
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公开(公告)号：US20100034219A1
公开(公告)日：2010-02-11
申请号：US12436980
申请日：2009-05-07
IPC分类号： H04J4/00
CPC分类号： H04L27/2626 , H04L5/0007 , H04L5/0044 , H04L5/005 , H04L5/0092 , H04L25/0226 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04L27/2666 , H04N5/4401 , H04N21/2383 , H04N21/4345 , H04N21/4383 , H04N21/4385
摘要： A transmitting apparatus for transmitting signals in a multi carrier system on the basis of a frame structure, each frame including at least two signalling patterns adjacent to each other in the frequency direction and at least two data patterns, the transmitting apparatus including signalling mapping means to map signalling data on frequency carriers of each of the at least two signalling patterns in a frame, each signalling pattern having the same length, data mapping means to map data on frequency carriers of the at least two data patterns in a frame, transforming means to transform the signalling patterns and the data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means to transmit the transmission signal. A corresponding transmitting method and a frame pattern for a multi carrier system are also provided.
摘要翻译： 一种用于在多载波系统中基于帧结构发送信号的发送装置，每个帧包括在频率方向上彼此相邻的至少两个信令模式和至少两个数据模式，所述发送装置包括信令映射装置， 在帧中的至少两个信令模式中的每一个的频率载波上映射信令数据，每个信令模式具有相同的长度，数据映射装置，用于将帧中的至少两个数据模式的频率载波上的数据进行映射，变换装置 将信令模式和数据模式从频域转换为时域，以便产生时域传输信号，以及发送装置来发送传输信号。 还提供了一种用于多载波系统的相应发送方法和帧模式。
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公开(公告)号：US20100310017A1
公开(公告)日：2010-12-09
申请号：US12782991
申请日：2010-05-19
IPC分类号： H04L27/06
CPC分类号： H04L1/0668 , H04L25/0204 , H04L25/0232 , H04L27/2601
摘要： A receiver is arranged to detect and recover data from Orthogonal Frequency Division Multiplexed (OFDM) symbols, which are transmitted as first and second versions to form a multiple input multiple output (MISO) system and which carry pairs of data symbols encoded to form Alamouti cells. The receiver includes a channel estimator and corrector, which is arranged to form an estimate of the data symbols, by generating an estimate of first and second channels via which the first and second versions of the OFDM symbols are received. The receiver includes a channel estimator and corrector comprising a pilot data extractor which is arranged to extract the pilot data from the OFDM symbols, a frequency dimension interpolator which is arranged to interpolate between the pilot data received from each of the OFDM symbols in the frequency domain to form sum pilot data and difference pilot data, a sum and difference decoder arranged to combine the sum and difference pilot data to form for each data symbol of the Alamouti pairs an estimate of a sample of the first channel and an estimate of the sample of the second channel, and an Alamouti decoder. The Alamouti decoder is arranged to receive the data bearing sub-carriers from the OFDM symbols and to estimate the data symbols by performing Alamouti decoding using the estimates of the samples for the first and second channels. As such a receiver for a MISO communication system is arranged to recover an estimate of the data symbols, which have been Alamouti-type encoded using frequency dimension interpolation only.
摘要翻译： 接收机被安排为检测和恢复来自正交频分复用（OFDM）符号的数据，这些符号作为第一和第二版本发送以形成多输入多输出（MISO）系统，并且携带编码为形成Alamouti信元的数据符号对 。 接收机包括信道估计器和校正器，其被布置为通过生成接收OFDM符号的第一和第二版本的第一和第二信道的估计来形成数据符号的估计。 所述接收机包括信道估计器和校正器，所述校正器包括导频数据提取器，所述导频数据提取器被配置为从所述OFDM符号中提取导频数据;频率维度插值器，被布置为在从所述频域中的每个OFDM符号接收的导频数据之间进行插值 以形成和导频数据和差分导频数据;和差分解码器，其被布置为组合所述和和导频数据，以形成所述Alamouti对的每个数据符号，所述第一信道的样本的估计和所述样本的估计 第二个通道和一个Alamouti解码器。 Alamouti解码器被布置为从OFDM符号接收携带数据的子载波，并且通过使用第一和第二信道的采样的估计执行Alamouti解码来估计数据符号。 由于MISO通信系统的这种接收机被设置为恢复已经使用频率维度插值的Alamouti型编码的数据符号的估计。
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公开(公告)号：US20110013732A1
公开(公告)日：2011-01-20
申请号：US12829907
申请日：2010-07-02
IPC分类号： H04L27/06
CPC分类号： H04L27/2659 , H04L27/2656 , H04L27/266 , H04L27/2662 , H04L27/2675 , H04L27/2678
摘要： A receiver for detecting and recovering data from Orthogonal Frequency Division Multiplexed (OFDM) symbols. The receiver comprises a demodulator, symbol synchronization unit, frequency transform processor, and coarse frequency offset detector. The demodulator generates sampled symbols. The symbol synchronisation unit has correlators, which receives the sampled symbols, and a correlation detection processor. Each correlator auto correlates each sampled symbol, and the correlation detection processor determines a start point of each symbol. The frequency transform processor receives the sampled symbols and performs a frequency transform on each symbol. The coarse frequency offset detector includes a pilot data filter, which includes taps corresponding to a value and spacing of the pilot pattern of the symbols and arranged to receive as an input the frequency domain symbols from the frequency transform processor, and a coarse frequency offset detect processor, which is arranged to detect a coarse frequency offset output from the pilot data filter.
摘要翻译： 一种用于从正交频分复用（OFDM）符号检测和恢复数据的接收机。 接收机包括解调器，符号同步单元，频率变换处理器和粗频偏移检测器。 解调器产生采样符号。 符号同步单元具有接收采样符号的相关器和相关检测处理器。 每个相关器自动关联每个采样符号，并且相关检测处理器确定每个符号的起始点。 频率变换处理器接收采样的符号并对每个符号进行频率变换。 粗频偏移检测器包括导频数据滤波器，其包括对应于符号的导频模式的值和间隔的抽头，并且被布置为从频率变换处理器接收频域符号作为输入，以及粗频率偏移检测 处理器，其被布置成检测从导频数据滤波器输出的粗频率偏移。
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