公开(公告)号：US20180167248A1

公开(公告)日：2018-06-14

申请号：US15879969

申请日：2018-01-25

Applicant: Sony Corporation

Inventor： Lachlan MICHAEL ,  Yuken GOTO ,  Tatsuki AMIMOTO

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053

Abstract: A method for signaling preamble structure parameters. The method includes generating a bootstrap symbol that signals a single 8-bit preamble structure value. The single 8-bit preamble structure value identifies four different preamble structure parameters of a preamble that follows the bootstrap symbol. The method further includes generating a transmission frame including the bootstrap symbol, the preamble, and a data payload, and outputting the transmission frame for transmission via a terrestrial broadcast. The single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

公开(公告)号：US20190028311A1

公开(公告)日：2019-01-24

申请号：US16066979

申请日：2017-02-03

Applicant: SONY CORPORATION

Inventor： Tatsuki AMIMOTO ,  Yuken GOTO ,  Lachian Bruce MICHAEL

IPC: H04L27/26 ,  H04L5/00

Abstract: The present technology relates to a data processing apparatus and a data processing method which can suppress the influence of multipath propagation and the Doppler shift.A data processing apparatus includes a processing unit which performs modulation processing on a physical layer frame including a preamble, which includes a modulation parameter, and one or more subframes, which include data, in which any modulation parameter can be set for each of the subframes, and the subframes are arranged in the physical layer frame collectively by subframe groups which are collections of the subframes with FFT sizes, which are same, when IFFT operation is performed on symbols included in the physical layer frame. The present technology can be applied to, for example, data transmission compliant to a broadcast standard such as ATSC 3.0.

公开(公告)号：US20190052494A1

公开(公告)日：2019-02-14

申请号：US16077659

申请日：2017-02-03

Applicant: SONY CORPORATION

Inventor： Tatsuki AMIMOTO ,  Yuken GOTO ,  Lachlan Bruce MICHAEL

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L27/26 ,  H04L5/0048 ,  H04W72/04 ,  H04W72/0446

Abstract: The present technology relates to a data processing apparatus and a data processing method which can enhance multipath propagation resistance. When performing modulation processing on a physical layer frame including a preamble, which includes a modulation parameter, and one or more subframes, which include data, the data processing apparatus can set any modulation parameter for each subframe, and the modulation parameter has a relationship of Tui/Dxi≥Tui+1/Dxi+1 in a case where an effective symbol length indicating a length of an effective symbol is Tui and an interval between pilot signals in a frequency direction is Dxi in an i-th (i is an integer equal to or greater than 0) subframe. The present technology can be applied to, for example, data transmission compliant to a broadcast standard such as ATSC 3.0.

公开(公告)号：US20180324499A1

公开(公告)日：2018-11-08

申请号：US15773809

申请日：2017-01-13

Applicant: SONY CORPORATION

Inventor： Tatsuki AMIMOTO ,  Lachlan Bruce MICHAEL

IPC: H04N21/61 ,  H04N21/236 ,  H04N21/434 ,  H04N21/2343

CPC classification number: H04N21/6112 ,  H04H20/95 ,  H04J3/00 ,  H04N21/2343 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/61 ,  H04N21/6162

Abstract: The present technique relates to a data processing apparatus and a data processing method each of which enables a burden imposed on processing on a reception side to be reduced.A data processing apparatus produces signaling containing a Null cell number exhibiting the number of Null cells of cells of a sub-frame included in a physical layer frame, and processes the signaling so as for the signaling to be contained in a preamble of the physical layer frame, thereby enabling a burden imposed on processing on a reception side to be reduced. The present technique, for example, can be applied to data transmission complying with the broadcasting standards such as ATSC3.0.

公开(公告)号：US20170026152A1

公开(公告)日：2017-01-26

申请号：US15209117

申请日：2016-07-13

Applicant: Sony Corporation

Inventor： Samuel Asangbeng ATUNGSIRI ,  Hidetoshi KAWAUCHI ,  Tatsuki AMIMOTO ,  Yuken GOTO

IPC: H04L5/00 ,  H04L27/22 ,  H04J13/00

CPC classification number: H04L5/0007 ,  H04J13/0062 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/22 ,  H04L27/2613 ,  H04L27/2649 ,  H04L27/2666 ,  H04W72/042 ,  H04W76/10

Abstract: A receiver for detecting and recovering payload data from a received signal, the receiver comprising: a radio frequency demodulation circuit configured to detect and to recover the received signal, the received signal having been formed and transmitted by a transmitter relative to which the receiver is moving at a speed less than or equal to a predetermined maximum speed, the received signal having been formed and transmitted by the transmitter to carry the payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in one or more of a plurality of time divided frames, each frame including a preamble including a plurality of bootstrap OFDM symbols, one or more of the bootstrap OFDM symbols of the preamble carrying a signature sequence, and each of the one or more of the bootstrap OFDM symbols carrying a signature sequence carrying signalling data represented as a relative cyclic shift of the bootstrap OFDM symbol, wherein the signature sequence carried by each of the one or more of the bootstrap OFDM symbols comprises a combination of a Zadoff-chu sequence and a pseudorandom-noise sequence, a detector circuit configured to detect and to convert a useful part of the bootstrap OFDM symbols into the frequency domain, a bootstrap processor configured to detect the signalling data from the one or more of the bootstrap OFDM symbols in the frequency domain, and a demodulator circuit configured to recover the payload data from the payload OFDM symbols using the signalling data, wherein the bootstrap processor comprises: a divider configured to divide a first bootstrap OFDM symbol in the frequency domain by a second bootstrap OFDM symbol in the frequency domain, the first and second bootstrap OFDM symbols being adjacent OFDM bootstrap symbols in the received signal, and one of the first and second bootstrap OFDM symbols being a subject bootstrap OFDM symbol which is one of the bootstrap OFDM symbols carrying signalling data; a divider and multiplier unit configured to divide the output of the divider by the pseudorandom-noise sequence of the signature sequence of the first bootstrap OFDM symbol and multiply the output of the divider by the pseudorandom-noise sequence of the signature sequence of the second bootstrap OFDM symbol; a phase change estimator configured to detect an average change in phase between adjacent sub-carriers of the subject bootstrap OFDM symbol on the basis of the output of the divider and multiplier unit, and a signalling data detector configured to identify the signalling data of the subject bootstrap OFDM symbol based on the detected average change in phase which is representative of the cyclic shift applied to the subject bootstrap OFDM symbol.

公开(公告)号：US20160373221A1

公开(公告)日：2016-12-22

申请号：US14746541

申请日：2015-06-22

Applicant: Sony Corporation

Inventor： Lachlan MICHAEL ,  Yuken GOTO ,  Tatsuki AMIMOTO

IPC: H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053

Abstract: A transmission apparatus and transmitting method for signaling parameters of a preamble, and a reception apparatus and receiving method for decoding the preamble. The transmitting method includes generating, using processing circuitry of a transmission apparatus, a bootstrap symbol based on the parameters of the preamble. The bootstrap symbol is prefixed to a frame that includes the preamble using the circuitry. The bootstrap symbol is selected from a plurality of patterns. Further, the plurality of patterns represent at least a subset of predetermined combinations of the parameters of the preamble including an FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

Abstract translation: 用于发送前同步码参数的发送装置和发送方法，以及用于解码前同步码的接收装置和接收方法。 发送方法包括基于前导码的参数来生成使用发送装置的处理电路的引导符号。 引导符号前缀到包含使用电路的前同步码的帧。 从多个图案中选择引导符号。 此外，多个模式至少表示包括FFT（快速傅立叶变换）大小，保护间隔，SPP（分散导频模式）的频域位移分量和L1（频率域）的前导码的参数的预定组合的子集 模式。