-
公开(公告)号：US10193736B2
公开(公告)日：2019-01-29
申请号：US15564993
申请日：2016-04-14
Applicant: Sony Corporation
Inventor： Daniel Schneider , Nabil Sven Loghin , Lothar Stadelmeier , Thomas Handte
Abstract: A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to a low density parity check code, LDPC, and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation, wherein said modulator is configured to use, based on the PHY mode, the total number M of constellation points of the constellation and the code rate, a particular non-uniform constellation.
-
公开(公告)号：US09843357B2
公开(公告)日：2017-12-12
申请号：US14880687
申请日：2015-10-12
Applicant: SONY CORPORATION
Inventor： Lothar Stadelmeier , Andreas Schwager , Daniel Schneider
CPC classification number: H04B3/54 , H04B3/32 , H04B3/46 , H04B2203/5425 , H04B2203/5466 , H04L1/0009 , H04L1/0618 , H04L5/0044
Abstract: A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method.
-
公开(公告)号：US20160261448A1
公开(公告)日：2016-09-08
申请号：US15155837
申请日：2016-05-16
Applicant: SONY CORPORATION
Inventor： Nabil MUHAMMAD , Lothar Stadelmeier , Joerg Robert
CPC classification number: H04L27/2628 , H04B1/04 , H04L5/001 , H04L27/2634 , H04L27/265 , H04L27/367 , H04L27/3872
Abstract: The present invention relates to OFDM generation apparatus and methods for generating OFDM transmission signals from OFDM symbols, each comprising a plurality of OFDM subcarriers, for transmission in a multi-carrier data transmission system. An embodiment of the proposed apparatus and method are adapted for using a selected mixing frequency for mixing said complex time-domain samples of said OFDM symbol from a baseband frequency up to a passband frequency by use of a mixing frequency to obtain said OFDM transmission signal, wherein the mixing frequency is selected such that common phase rotations of the OFDM subcarriers of said OFDM symbol with respect to adjacent OFDM symbols of said OFDM transmission signal are avoided or compensated after said mixing. Further embodiments for avoidance or compensation of such common phase rotations are provided.
-
公开(公告)号：US20150288553A1
公开(公告)日：2015-10-08
申请号：US14435556
申请日：2013-11-26
Applicant: SONY CORPORATION
Inventor： Junge Qi , Joerg Robert , Jan Zoellner , Lothar Stadelmeier , Nabil Loghin
CPC classification number: H04L27/2649 , H03M13/6306 , H03M13/6552 , H04H40/18 , H04L1/0046 , H04L1/007 , H04L1/0086 , H04L1/1819 , H04L1/1893 , H04L1/22 , H04L27/265
Abstract: A receiver for receiving data in a broadcast system includes a broadcast receiver that receives via the broadcast system a receiver input data stream including plural channel symbols represented by constellation points in a constellation diagram, a demodulator that demodulates the channel symbols into codewords, and a decoder that decodes the codewords into output data words. A redundancy calculator determines a required amount of redundancy data required for correct demodulation and decoding by use of the originally received channel symbol and additional redundancy data. A broadband request unit requests, if demodulation of a channel symbol and/or decoding of a codeword is erroneous or likely to fail, a required amount of redundancy data via a broadband system, that is received by a broadband receiver via said broadband system. The demodulator and/or the decoder is configured to use the redundancy data for demodulation and decoding, respectively.
Abstract translation: 用于在广播系统中接收数据的接收机包括广播接收机，其经由广播系统接收包括由星座图中的星座点表示的多个信道符号的接收机输入数据流，将信道符号解调为码字的解调器，以及解码器 将码字解码为输出数据字。 冗余计算器通过使用原始接收的信道符号和附加的冗余数据来确定正确解调和解码所需的冗余数据所需的量。 宽带请求单元如果通道符号的解调和/或码字的解码是错误的或可能失败，则通过宽带系统通过宽带接收机经由所述宽带系统接收所需的冗余数据量。 解调器和/或解码器分别被配置为使用冗余数据进行解调和解码。
-
15.发明授权Receiver and method of receiving and transmitter and method of transmitting for OFDM symbols 有权接收机和发射机的方法以及发送OFDM符号的方法公开(公告)号：US09143290B2
公开(公告)日：2015-09-22
申请号：US14052858
申请日：2013-10-14
Applicant: Sony Corporation
Inventor： Martin Lovell , Lothar Stadelmeier
CPC classification number: H04L5/0007 , H04L1/0041 , H04L1/0075 , H04L5/0039 , H04L5/0046 , H04L5/0064 , H04L5/0091 , H04L5/0094 , H04L12/6418 , H04L27/2602
Abstract: A receiver receives payload data transmitted on a downstream using Orthogonal Frequency Division Multiplexed (OFDM) symbols via a cable network. The receiver includes circuitry configured to receive a downstream signal representing the payload data modulated onto one or more OFDM symbols, and to demodulate the OFDM symbols of each frame to detect and to recover the payload data using the physical layer signalling data. One or more of the frames of the received signal includes a preamble of the frame providing the physical layer signalling data, and in a separate media access control (MAC) signal within the frame, upstream messages relating to the transmission of data from the receiver to the transmitter. Accordingly, an arrangement is provided for a cable network communications system in which a capacity for upstream signalling messages for communicating on the downstream can be adapted to a requirement of receivers connected to the network.
Abstract translation: 接收机通过有线网络使用正交频分复用（OFDM）符号在下游接收有效载荷数据。 接收机包括被配置为接收表示在一个或多个OFDM符号上调制的有效载荷数据的下行信号的电路，以及解调每个帧的OFDM符号以使用物理层信令数据来检测和恢复有效载荷数据。 接收信号的一个或多个帧包括提供物理层信令数据的帧的前导码，并且在该帧内的单独的媒体访问控制（MAC）信号中，与从接收机到数据的传输有关的上行消息 发射机。 因此，提供了一种用于有线网络通信系统的布置，其中用于在下游进行通信的上行信令消息的容量可以适应于连接到网络的接收机的需求。
-
Patent Agency Ranking
16.发明授权Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system 有权用于在电力线通信网络，发射机，接收机，电力线通信调制解调器和电力线通信系统中从发射机向接收机发送信号的方法公开(公告)号：US08817893B2
公开(公告)日：2014-08-26
申请号：US14098145
申请日：2013-12-05
Applicant: Sony Corporation
Inventor： Lothar Stadelmeier , Dietmar Schill , Andreas Schwager , Daniel Schneider
CPC classification number: H04L27/2601 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04B2203/5425 , H04L1/0693 , H04L5/0025 , H04L5/0058 , H04L5/0092 , H04L25/0248 , H04L27/2646 , H04L27/2647
Abstract: A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well.
Abstract translation: 一种用于通过信道将信号从发射机发送到电力线网络上的接收机的方法，其中所述信号在一组子载波上进行OFDM调制，其中确定OFDM子映射和本征波束形成编码矩阵 基于每个子载波的信道估计，生成分别描述所述OFDM tonemap和所述本征波束形成编码矩阵并且发送到发射机的tonemap反馈信号和本征波束形成反馈信号。 还描述了相应的接收机，发射机，电力线通信和电力线通信系统。
-
公开(公告)号：US10326635B2
公开(公告)日：2019-06-18
申请号：US16105666
申请日：2018-08-20
Applicant: SONY CORPORATION
Inventor： Nabil Loghin , Lothar Stadelmeier , Jan Zoellner , Yuji Shinohara
Abstract: A coding and modulation apparatus and method are presented. The apparatus comprises an encoder that encodes input data into cell words, and a modulator that modulates said cell words into constellation values of a non-uniform constellation. The modulator is configured to use, based on the total number M of constellation points of the constellation and the code rate, a non-uniform constellation from one or several groups of constellations each comprising one or more constellations.
-
公开(公告)号：US10298429B2
公开(公告)日：2019-05-21
申请号：US14033161
申请日：2013-09-20
Applicant: Sony Corporation
Inventor： Lothar Stadelmeier , Markus Zumkeller , Andreas Schwager , Stephen Tiedemann , Gralf Gaedeken
Abstract: A transmitting device, a receiving device, and a communication method for transmitting and receiving data modulated on frequency subcarriers of an OFDM communication system. An OFDM burst includes a preamble part and payload data part, whereby the preamble includes a section of pilot symbols mapped onto every n-th frequency subcarrier and signaling data mapped onto the frequency subcarriers between the frequency subcarriers with the pilot symbols. A first channel estimation on the basis of the received pilot symbols is performed, the result of which is used to reconstruct the entire section of the received preamble as a training pattern for an accurate channel estimation, which is used for a channel equalization of the received payload part.
-
19.发明申请公开(公告)号：US20190109753A1
公开(公告)日：2019-04-11
申请号：US16210328
申请日：2018-12-05
Applicant: Sony Corporation
Inventor： Daniel Schneider , Nabil Sven Loghin , Lothar Stadelmeier , Thomas Handte
Abstract: A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to a low density parity check code, LDPC, and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation, wherein said modulator is configured to use, based on the PHY mode, the total number M of constellation points of the constellation and the code rate, a particular non-uniform constellation.
-
公开(公告)号：US10177954B2
公开(公告)日：2019-01-08
申请号：US15556540
申请日：2016-03-16
Applicant: Sony Corporation
Inventor： Daniel Schneider , Nabil Loghin , Lothar Stadelmeier
Abstract: A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to a binary convolutional code, BCC, or a low density parity check code, LDPC, and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation, wherein said modulator is configured to use, based on the code used by the encoder, the total number M of constellation points of the constellation and the code rate.
-
-
-
-
-
-
-
-
-
Search Results
47
records
(took 0.029 seconds)
