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1. 发明授权

US09167281B2 Transport stream packet header compression 有权
标题翻译：传输流包头压缩
公开(公告)号：US09167281B2
公开(公告)日：2015-10-20
申请号：US13580214
申请日：2011-02-24
申请人： Mihail Petrov , Frank Herrmann , Tomohiro Kimura , Mikihiro Ouchi
发明人： Mihail Petrov , Frank Herrmann , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04N21/23 , H04N21/236 , H04L12/861 , H04N21/2389 , H04N21/4385 , H04N21/43 , H04L29/06
CPC分类号： H04N21/23608 , H04L49/9057 , H04L49/9094 , H04L69/04 , H04L69/22 , H04N21/2389 , H04N21/4344 , H04N21/4385 , H04N21/6112
摘要： A demultiplexer 630 routes only one or more transport stream packets with a single packet identifier value to each physical layer pipe. A header compression unit 620 replaces the packet identifier of the transport stream packet with a short packet identifier of one bit length indicating at least whether the transport stream packet is a NULL packet.
摘要翻译：解复用器630仅将具有单个分组标识符值的一个或多个传输流分组路由到每个物理层管道。报头压缩单元620用至少指示传输流分组是否为空分组的一比特长度的短分组标识来替换传输流分组的分组标识符。

2. 发明申请

US20120307842A1 TRANSPORT STREAM PACKET HEADER COMPRESSION 有权
标题翻译：运输流水包压头压缩
公开(公告)号：US20120307842A1
公开(公告)日：2012-12-06
申请号：US13580214
申请日：2011-02-24
申请人： Mihail Petrov , Frank Herrmann , Tomohiro Kimura , Mikihiro Ouchi
发明人： Mihail Petrov , Frank Herrmann , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04L12/56
CPC分类号： H04N21/23608 , H04L49/9057 , H04L49/9094 , H04L69/04 , H04L69/22 , H04N21/2389 , H04N21/4344 , H04N21/4385 , H04N21/6112
摘要： A demultiplexer 630 routes only one or more transport stream packets with a single packet identifier value to each physical layer pipe. A header compression unit 620 replaces the packet identifier of the transport stream packet with a short packet identifier of one bit length indicating at least whether the transport stream packet is a NULL packet.
摘要翻译：解复用器630仅将具有单个分组标识符值的一个或多个传输流分组路由到每个物理层管道。报头压缩单元620用至少指示传输流分组是否为空分组的一比特长度的短分组标识来替换传输流分组的分组标识符。

3. 发明授权

US08837613B2 Pilot patterns for OFDM systems with multiple antennas 有权
标题翻译：具有多个天线的OFDM系统的导频模式
公开(公告)号：US08837613B2
公开(公告)日：2014-09-16
申请号：US13255388
申请日：2011-01-13
申请人： Mihail Petrov , Tomohiro Kimura , Mikihiro Ouchi
发明人： Mihail Petrov , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/02 , H04L27/06 , H04L27/04 , H04L27/26 , H04L25/02
CPC分类号： H04L5/0048 , H04B7/02 , H04B7/0613 , H04L25/0224 , H04L27/2611 , H04L27/2613 , H04L27/2627 , H04L27/2649
摘要： The present invention relates to orthogonal frequency-division multiplexing (OFDM) communication systems with multiple transmit antennas receive antennas, and in particular to methods for inserting scattered pilots (SPs) into the transmit signals of such OFDM systems, for estimating channel properties on the basis of the scattered pilots, a multi-antenna OFDM transmitter, and an OFDM receiver. In this context, it is the particular approach of the present invention to keep the same SP pattern like in the single-transmitter case, to partition the pilots into as many subsets as there are transmitters (transmit antennas), and to interleave these subsets both in time and in frequency. In this manner, the granularity of pilots of the same subset is reduced. This offers increased flexibility in designing the scattered pilot patterns and greater accuracy of the estimated channel properties.
摘要翻译：本发明涉及具有多个发射天线的正交频分复用（OFDM）通信系统接收天线，特别涉及用于将散射导频（SP）插入到这种OFDM系统的发射信号中的方法，用于基于的分散导频，多天线OFDM发射机和OFDM接收机。在这种情况下，本发明的特定方法是在单发射机情况下保持相同的SP模式，以将导频划分成与发射机（发射天线）一样多的子集，并且将这些子集两者交织在时间和频率上。以这种方式，减少了相同子集的导频的粒度。这提供了设计分散导频模式和估计信道特性的更高精度的更大灵活性。

4. 发明申请

US20110317785A1 PILOT PATTERNS FOR OFDM SYSTEMS WITH MULTIPLE ANTENNAS 有权
标题翻译：具有多个天线的OFDM系统的引导模式
公开(公告)号：US20110317785A1
公开(公告)日：2011-12-29
申请号：US13255388
申请日：2011-01-13
申请人： Mihail Petrov , Tomohiro Kimura , Mikihiro Ouchi
发明人： Mihail Petrov , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/02 , H04L27/06 , H04L27/04
CPC分类号： H04L5/0048 , H04B7/02 , H04B7/0613 , H04L25/0224 , H04L27/2611 , H04L27/2613 , H04L27/2627 , H04L27/2649
摘要： The present invention relates to orthogonal frequency-division multiplexing (OFDM) communication systems with multiple transmit antennas receive antennas, and in particular to methods for inserting scattered pilots (SPs) into the transmit signals of such OFDM systems, for estimating channel properties on the basis of the scattered pilots, a multi-antenna OFDM transmitter, and an OFDM receiver. In this context, it is the particular approach of the present invention to keep the same SP pattern like in the single-transmitter case, to partition the pilots into as many subsets as there are transmitters (transmit antennas), and to interleave these subsets both in time and in frequency. In this manner, the granularity of pilots of the same subset is reduced. This offers increased flexibility in designing the scattered pilot patterns and greater accuracy of the estimated channel properties.
摘要翻译：本发明涉及具有多个发射天线的正交频分复用（OFDM）通信系统接收天线，特别涉及用于将散射导频（SP）插入到这种OFDM系统的发射信号中的方法，用于基于的分散导频，多天线OFDM发射机和OFDM接收机。在这种情况下，本发明的特定方法是在单发射机情况下保持相同的SP模式，以将导频划分成与发射机（发射天线）一样多的子集，并且将这些子集两者交织在时间和频率上。以这种方式，减少了相同子集的导频的粒度。这提供了设计分散导频模式和估计信道特性的更高精度的更大灵活性。

5. 发明授权

US09287946B2 Precoding method, and transmitting device 有权
标题翻译：预编码方法和发送装置
公开(公告)号：US09287946B2
公开(公告)日：2016-03-15
申请号：US13810783
申请日：2011-12-01
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04L25/03 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/06 , H04B7/0606 , H04B7/0689 , H04L25/03898
摘要： Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a precoding weight by a baseband signal after a first mapping and a baseband signal after a second mapping and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
摘要翻译：公开了一种用于同时发送相同频率的第一调制信号和第二调制信号的传输方案。根据传输方案，预编码权重乘法单元在第一映射之后将预编码权重乘以基带信号和在第二映射之后将基带信号相乘，并输出第一调制信号和第二调制信号。在预编码权重乘法单元中，规则地跳跃预编码权重。

6. 发明授权

US09112568B2 Transmission device, transmission method, receiving device and receiving method 有权
标题翻译：传输设备，传输方式，接收设备和接收方式
公开(公告)号：US09112568B2
公开(公告)日：2015-08-18
申请号：US14128296
申请日：2012-06-21
申请人： Mikihiro Ouchi , Yutaka Murakami , Tomohiro Kimura
发明人： Mikihiro Ouchi , Yutaka Murakami , Tomohiro Kimura
IPC分类号： H04B7/02 , H04B7/10 , H04B7/06 , H04W52/18 , H04B10/532
CPC分类号： H04B7/10 , H04B7/0689 , H04B10/532 , H04W52/18 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/168 , Y02D70/442 , Y02D70/444
摘要： A transmission device transmits by performing SISO using a first polarization and by performing MISO and MIMO using the first (V) polarization and a second (H) polarization. For SISO communication, transmission is performed using an antenna having the first (V) polarization. For MISO and MIMO communication, transmission is performed using the antenna having the first (V) polarization and an antenna having the second (H) polarization. Accordingly, a reception device equipped only with a system for the antenna having the first (V) polarization is able to continue receiving the transmit data by SISO.
摘要翻译：传输设备通过使用第一偏振执行SISO并且通过使用第一（V）偏振和第二（H）偏振来执行MISO和MIMO来发送。对于SISO通信，使用具有第一（V）极化的天线进行发送。对于MISO和MIMO通信，使用具有第一（V）极化的天线和具有第二（H）极化的天线来执行传输。因此，仅配备具有第一（V）极化的天线的系统的接收装置能够通过SISO继续接收发送数据。

7. 发明授权

US09054757B2 Signal generating method and signal generating apparatus 有权
标题翻译：信号产生方法和信号发生装置
公开(公告)号：US09054757B2
公开(公告)日：2015-06-09
申请号：US14241130
申请日：2012-09-06
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04L5/00
CPC分类号： H04B7/0469 , H04B1/0057 , H04B7/0417 , H04B7/0426 , H04B7/0456 , H04B7/0465 , H04L5/00 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L25/0222 , H04L27/20 , H04L27/34 , H04L27/36
摘要： A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved.
摘要翻译：用于以相同频率同时发射第一调制信号和第二调制信号的传输方法包括使用固定预编码矩阵对两个信号执行预编码，并定期改变至少一个信号的相位。在该方法中，以相同频率和同一时间从多个天线发送的多个信号之间的功率比与在相同频率和相同频率下从多个天线发送的多个导频信号之间的功率比不同同时，提高了接收装置的信道估计精度。

8. 发明授权

US09008225B2 Pre-coding method and pre-coding device 有权
标题翻译：预编码方式和预编码装置
公开(公告)号：US09008225B2
公开(公告)日：2015-04-14
申请号：US14111334
申请日：2012-04-18
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04L1/00 , H04L1/06 , H04L1/20
CPC分类号： H04B7/0465 , H04B1/713 , H04B7/0456 , H04B7/0469 , H04B7/0615 , H04L1/0009 , H04L1/005 , H04L1/0643 , H04L1/20
摘要： Disclosed is a precoding method comprising the steps of: generating a first coded block and a second coded block with use of a predetermined error correction block coding scheme; generating a first precoded signal z1 and a second precoded signal z2 by performing a precoding process, which corresponds to a matrix selected from among the N matrices F[i], on a first baseband signal s1 generated from the first coded block and a second baseband signal s2 generated from the second coded block, respectively; the first precoded signal z1 and the second precoded signal z2 satisfying (z1, z2)T=F[i](s1, s2)T; and changing both of or one of a power of the first precoded signal z1 and a power of the second precoded signal z2, such that an average power of the first precoded signal z1 is less than an average power of the second precoded signal z2.
摘要翻译：公开了一种预编码方法，包括以下步骤：利用预定的纠错块编码方案产生第一编码块和第二编码块; 通过对从第一编码块产生的第一基带信号s1和第二编码块产生第一基带信号s1，执行对应于从N个矩阵F [i]中选择的矩阵的预编码处理，生成第一预编码信号z1和第二预编码信号z2 分别从第二编码块产生的信号s2; 第一预编码信号z1和第二预编码信号z2满足（z1，z2）T = F [i]（s1，s2）T; 并且改变第一预编码信号z1的功率和第二预编码信号z2的功率中的两者或一者，使得第一预编码信号z1的平均功率小于第二预编码信号z2的平均功率。

9. 发明授权

US08971439B2 Precoding method, precoding device 有权
标题翻译：预编码方法，预编码装置
公开(公告)号：US08971439B2
公开(公告)日：2015-03-03
申请号：US13985707
申请日：2012-02-17
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/02 , H04B7/04 , H04L25/03
CPC分类号： H04B7/0456 , H04B7/0413 , H04B7/0469 , H04B7/0617 , H04L25/03171 , H04L25/03942 , H04L25/03949 , H04L27/18 , H04L27/2626 , H04L27/34
摘要： Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.
摘要翻译：公开了一种用于从多个基带信号生成同时以相同频带发送的多个预编码信号的预编码方法。根据预编码方法，从定义通过在矩阵之间跳跃对多个基带信号执行的预编码处理的矩阵中选择一个矩阵。与通过使用预定的纠错块编码方案生成的第一编码块和第二编码块相关的第一基带信号和第二基带信号满足给定条件。

10. 发明授权

US08867482B2 Signal generation method and signal generation device 有权
公开(公告)号：US08867482B2
公开(公告)日：2014-10-21
申请号：US13811044
申请日：2011-11-29
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04W4/00 , H04B7/06 , H04L25/06 , H04L25/03 , H04B7/04 , H04L5/00 , H04L25/02
CPC分类号： H04B7/0456 , G06F11/10 , H04B7/0413 , H04B7/0482 , H04B7/0669 , H04B7/0682 , H04B7/0697 , H04L1/0058 , H04L5/005 , H04L25/0224 , H04L25/03898 , H04L25/067 , H04L27/2627 , H04L27/2649 , H04W72/044
摘要： A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

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