公开(公告)号：US20170338994A1

公开(公告)日：2017-11-23

申请号：US15525764

申请日：2015-11-12

Applicant: SONY CORPORATION

Inventor： Samuel Asangbeng ATUNGSIRI

IPC: H04L27/26 ,  H04L5/00 ,  H03M13/27 ,  H04W56/00 ,  H04L27/156 ,  H04L27/00

CPC classification number: H04L27/2666 ,  H03M13/27 ,  H03M13/2707 ,  H03M13/2778 ,  H04B7/02 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0643 ,  H04L1/0668 ,  H04L5/0007 ,  H04L27/1566 ,  H04L27/2657 ,  H04L27/266 ,  H04L27/2672 ,  H04L27/2695 ,  H04L2027/0065 ,  H04W56/004

Abstract: A receiver detects a received signal, transmitted by a transmitter to carry payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in divided frames, each frame including a preamble including plural bootstrap OFDM symbols. A detector circuit detects, from the bootstrap OFDM symbols, a synchronization timing for converting a useful part of the bootstrap OFDM symbols into the frequency domain. A bootstrap processor detects an estimate of the channel transfer function from a first OFDM symbol, and a demodulator circuit recovers the signaling data from the bootstrap OFDM symbols using the estimate. The bootstrap processor includes an up-sampler configured to receive the bootstrap OFDM symbols, to form an up-sampled frequency domain version of the bootstrap OFDM symbol, and an output processor configured to identify a peak correlation result, to determine frequency offset of the received signal from a relative position of the peak correlation result in the frequency domain.

公开(公告)号：US20160142237A1

公开(公告)日：2016-05-19

申请号：US14897468

申请日：2014-06-24

Applicant: SONY CORPORATION

Inventor： Samuel Asangbeng ATUNGSIRI

IPC: H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2655 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2678 ,  H04L27/2685

Abstract: A transmitter transmitting payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols, including: a frame builder configured to receive the payload data and to receive signalling data to use in detecting and recovering the payload data at a receiver, and to form the payload data with the signalling data into frames for transmission; a modulator configured to modulate a first OFDM symbol with the signalling data and to modulate one or more second OFDM symbols with the payload data; a signature sequence processor circuit providing a signature sequence; a combiner circuit combining the signature sequence with the first OFDM symbol; a prefixing circuit prefixing a guard interval to the first OFDM symbol to form a preamble; and a transmission circuit transmitting the preamble and the one or more second OFDM symbols. The guard interval is formed from time domain samples of a part of the signature sequence.

Abstract translation: 一种使用正交频分复用（OFDM）符号发送有效载荷数据的发射机，包括：帧构造器，被配置为接收所述有效载荷数据并接收用于在接收机检测和恢复所述有效载荷数据的信令数据，以及形成所述有效载荷数据 将信令数据转换成帧以进行传输; 调制器，被配置为用所述信令数据调制第一OFDM符号并且用所述有效载荷数据调制一个或多个第二OFDM符号; 提供签名序列的签名序列处理器电路; 组合所述签名序列与所述第一OFDM符号的组合器电路; 前缀电路，其将保护间隔前缀到所述第一OFDM符号以形成前导码; 以及发送电路，发送所述前导码和所述一个或多个第二OFDM符号。 保护间隔由签名序列的一部分的时域采样形成。

公开(公告)号：US20160094895A1

公开(公告)日：2016-03-31

申请号：US14894131

申请日：2014-06-03

Applicant: SONY CORPORATION

Inventor： Lothar STADELMEIER ,  Makiko KAN ,  Nabil LOGHIN ,  Daniel SCHNEIDER ,  Jan ZOELLNER ,  Lachlan Bruce MICHAEL ,  Yuji SHINOHARA ,  Samuel Asangbeng ATUNGSIRI ,  Gholam Hosein ASJADI ,  Matthew Paul Athol TAYLOR

IPC: H04N21/81 ,  H04N21/435 ,  H04N21/236 ,  H04H20/59 ,  H04L27/34

Abstract: A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system includes a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.

Abstract translation: 用于在单载波或多载波广播系统中使用数据符号发送有效载荷数据和紧急信息的发射机包括调制器，其被配置为用信令数据调制一个或多个传输符号，以用于在接收机处检测和恢复有效载荷数据， 以用有效载荷数据来调制一个或多个传输符号。 紧急信息接收器接收携带实际紧急情况信息的紧急信息。 紧急信息嵌入器将紧急信息嵌入到一个或多个传输符号中，其中，如果不发送紧急信息，则通过使用用于承载信令数据和/或有效载荷数据的资源来在其接收之后的预定时间段内嵌入紧急信息。 发送单元发送发送符号。

公开(公告)号：US20160050097A1

公开(公告)日：2016-02-18

申请号：US14778922

申请日：2014-03-20

Applicant: SONY CORPORATION

Inventor： Samuel Asangbeng ATUNGSIRI

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2634 ,  H04L1/007 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/001 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2649 ,  H04L27/2655

Abstract: A transmitter transmitting payload data using OFDM symbols includes a frame builder configured to receive the payload data and to receive signalling data for use in detecting and recovering the payload data at a receiver, and to form the payload data and the signalling data into frames for transmission. A modulator can modulate a first OFDM symbol with the signalling data forming a first of the frames and modulate one or more second OFDM symbols with the payload data forming one or more other frames, and a transmission unit transmits the first and second OFDM symbols. The first OFDM symbol is combined before transmission with a signature sequence that can be configured to allow for detection of the first OFDM symbol at the receiver and decoding the signalling data before the one or more second OFDM symbols carrying the payload data and at lower signal to noise ratios.

Abstract translation: 使用OFDM符号发送有效载荷数据的发射机包括帧构造器，其被配置为接收有效载荷数据并接收用于在接收机处检测和恢复有效载荷数据的信令数据，并且将有效载荷数据和信令数据形成帧以用于传输 。 调制器可以利用形成第一帧的信令数据来调制第一OFDM符号，并且调制一个或多个第二OFDM符号，其中有效载荷数据形成一个或多个其他帧，并且传输单元发送第一和第二OFDM符号。 第一OFDM符号在传输之前与签名序列组合，签名序列可被配置为允许在接收机处检测第一OFDM符号，并且在携带有效载荷数据的一个或多个第二OFDM符号之前对信令数据进行解码，并且以较低的信号 噪声比。

公开(公告)号：US20160050095A1

公开(公告)日：2016-02-18

申请号：US14778909

申请日：2014-03-26

Applicant: SONY CORPORATION

Inventor： Samuel Asangbeng ATUNGSIRI ,  Jan ZOELLNER

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L27/2607 ,  H04L27/2627 ,  H04L27/2655 ,  H04L27/2678

Abstract: A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The transmitter comprises a frame builder configured to receive the payload data to be transmitted and to receive first signalling data for use in detecting and recovering the payload data at a receiver, and to form the payload data and the first signalling data into frames for transmission, the first signalling data forming a part of the frames with the payload data. A modulator is configured to modulate a first OFDM symbol with the first signalling data and to modulate one or more second OFDM symbols with the payload data. A signature sequence processor provides a signature sequence, a combiner combines the signature sequence with the first OFDM symbol, and a transmission unit transmits the first and second OFDM symbols. The signature sequence provided by the signature sequence processor comprises at least one of a first synchronisation sequence or a second message sequence, the first synchronisation sequence and/or the second message sequence being combined by the combiner with the first OFMD symbol. The first synchronisation sequence is provided for a receiver to detect and to recover the first signalling data from the first OFDM symbol and the second message sequence provides message information to the receiver. The message information may be used to convey a specific message to a user such as an emergency warning relating to a natural disaster such as an earthquake or a tsunami warning.

Abstract translation: 发射机使用正交频分复用（OFDM）符号发射有效载荷数据。 发射机包括：帧构造器，被配置为接收要发送的有效载荷数据，并且接收第一信令数据以用于在接收机处检测和恢复有效载荷数据，并且将有效载荷数据和第一信令数据形成为帧进行传输， 所述第一信令数据形成具有有效载荷数据的帧的一部分。 调制器被配置为用第一信令数据调制第一OFDM符号并且利用有效载荷数据来调制一个或多个第二OFDM符号。 签名序列处理器提供签名序列，组合器将签名序列与第一OFDM符号组合，传输单元发送第一和第二OFDM符号。 由签名序列处理器提供的签名序列包括第一同步序列或第二消息序列中的至少一个，第一同步序列和/或第二消息序列由组合器与第一OFMD符号组合。 提供第一同步序列用于接收机检测和恢复来自第一OFDM符号的第一信令数据，并且第二消息序列向接收器提供消息信息。 消息信息可以用于向用户传达特定消息，例如与诸如地震或海啸警报的自然灾害相关的紧急警告。