RECEIVER FOR RECEIVING DATA IN A BROADCAST SYSTEM USING REDUNDANCY DATA

    公开(公告)号:US20180013516A1

    公开(公告)日:2018-01-11

    申请号:US15544346

    申请日:2016-01-25

    Abstract: A receiver for receiving data in a broadcast system includes a broadcast receiver configured to receive, via the broadcast system, a receiver input data stream including a plurality of channel symbols represented by constellation points in a constellation diagram. A demodulator demodulates the channel symbols into codewords and a decoder decodes the codewords into output data words. A redundancy unit selects or requests, if demodulation of a channel symbol and/or decoding of a codeword is erroneous or likely to fail, redundancy data for demodulation of future channel symbols and/or decoding of future codewords via a broadband system and a broadband receiver obtains the redundancy data via the broadband system. The demodulator and/or the decoder is configured to use the obtained redundancy data to demodulate the respective future channel symbols and to decode the respective future codewords, respectively.

    TRANSMITTER AND TRANSMISSION METHOD FOR TRANSMITTING PAYLOAD DATA AND EMERGENCY INFORMATION
    3.
    发明申请
    TRANSMITTER AND TRANSMISSION METHOD FOR TRANSMITTING PAYLOAD DATA AND EMERGENCY INFORMATION 审中-公开
    用于发送载荷数据和应急信息的发射机和传输方法

    公开(公告)号:US20160094895A1

    公开(公告)日:2016-03-31

    申请号:US14894131

    申请日:2014-06-03

    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。

    CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION
    4.
    发明申请
    CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION 有权
    使用非均匀协调的编码和调制设备

    公开(公告)号:US20160080192A1

    公开(公告)日:2016-03-17

    申请号:US14786371

    申请日:2014-04-29

    Abstract: A coding and modulation apparatus and method are presented. The apparatus (10) comprises an encoder (11) that encodes input data into cell words, and a modulator (12) that modulates said cell words into constellation values of a non-uniform constellation. The modulator (12) is configured to use, based on the total number M of constellation points of the constellation and the signal-to-noise ratio SNR in dB, a non-uniform constellation from a group of constellations comprising one or more constellations defined by a constellation position vector comprising a predetermined number of constellation positions, wherein in one or more constellation position vectors two or more constellation positions are identical resulting from a condensation of preliminary constellation positions optimized before.

    Abstract translation: 提出了一种编码和调制装置和方法。 装置(10)包括将输入数据编码成单元字的编码器(11)和将所述单元字调制成不均匀星座图的星座值的调制器(12)。 调制器(12)被配置为使用基于星座的星座点的总数M和以dB为单位的信噪比SNR,来自包括一个或多个星座的一组星座的不均匀星座被定义 通过包括预定数量的星座位置的星座位置矢量,其中在一个或多个星座位置矢量中,两个或更多个星座位置相同,这是由先前优化的初步星座位置的冷凝产生的。

    RECEIVER AND METHOD OF RECEIVING AND TRANSMITTER AND METHOD OF TRANSMITTING FOR OFDM SYMBOLS
    5.
    发明申请
    RECEIVER AND METHOD OF RECEIVING AND TRANSMITTER AND METHOD OF TRANSMITTING FOR OFDM SYMBOLS 有权
    接收机及其发送方法和发送OFDM符号的方法

    公开(公告)号:US20140146758A1

    公开(公告)日:2014-05-29

    申请号:US14052858

    申请日:2013-10-14

    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。

    TRANSMIT POWER ALLOCATION FOR ADAPTIVE MULTI-CARRIER MULTIPLEXING MIMO SYSTEMS

    公开(公告)号:US20160277076A1

    公开(公告)日:2016-09-22

    申请号:US15170082

    申请日:2016-06-01

    Abstract: The present invention relates to transmit power allocation in multi-carrier, multiplexing MIMO communication systems. The present invention especially relates to a MIMO communication device, a method of assigning transmit power to two or more communication channels and a software program product. A multiple-input-multiple-output, MIMO, communication device according to the present invention comprises a link controller adapted to assign transmit power to two or more transmission channels, each of said transmission channels having preassigned a portion of transmit power for each of a group of subcarriers, said link controller being further adapted to assign, for each subcarrier of said group of subcarriers, at least part of the preassigned transmit power portion of a transmission channel that is not used for transmitting information at the subcarrier, to one or more transmission channels that are used for transmitting information at the subcarrier.

    TRANSMISSION APPARATUS AND METHOD FOR TRANSMISSION OF DATA IN A MULTI-CARRIER BROADCAST SYSTEM
    9.
    发明申请
    TRANSMISSION APPARATUS AND METHOD FOR TRANSMISSION OF DATA IN A MULTI-CARRIER BROADCAST SYSTEM 审中-公开
    用于传输多载波广播系统中的数据的传输装置和方法

    公开(公告)号:US20160197663A1

    公开(公告)日:2016-07-07

    申请号:US14990587

    申请日:2016-01-07

    Abstract: A transmission apparatus and method, respectively, mapping payload data of mapping input data streams onto a mapping output data stream having a channel bandwidth for transmission in a multi-carrier broadcast system. To enable selection of robustness for transmission of data, the apparatus includes a frame forming mechanism mapping data blocks of at least two mapping input data streams onto frames of the mapping output data stream covering the channel bandwidth, each frame including a payload portion, the payload portion including plural data symbols and being segmented into data segments each covering a bandwidth portion of the channel bandwidth. The frame forming mechanism is configured to map the data blocks of the at least two mapping input data streams onto data symbols of the payload portion and includes a MIMO mode selector selecting a MIMO mode of the data blocks per data segment and/or per mapping input data stream.

    Abstract translation: 一种传输装置和方法,分别将输入数据流映射的有效载荷数据映射到具有用于在多载波广播系统中传输的信道带宽的映射输出数据流。 为了能够选择用于传输数据的鲁棒性,该装置包括一个帧形成机构,其将至少两个映射输入数据流的数据块映射到覆盖信道带宽的映射输出数据流的帧上,每个帧包括有效载荷部分,有效载荷 部分包括多个数据符号并被分割成数据段,每个数据段覆盖信道带宽的带宽部分。 帧形成机构被配置为将至少两个映射输入数据流的数据块映射到有效负载部分的数据符号上,并且包括MIMO模式选择器,每个数据段和/或每个映射输入选择数据块的MIMO模式 数据流。

    CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION
    10.
    发明申请
    CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION 审中-公开
    使用非均匀协调的编码和调制设备

    公开(公告)号:US20160156498A1

    公开(公告)日:2016-06-02

    申请号:US14901894

    申请日:2014-07-07

    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.

    Abstract translation: 提出了一种编码和调制装置和方法。 该装置包括将输入数据编码成单元字的编码器和将所述单元字调制成不均匀星座的星座值的调制器。 调制器被配置为基于星座的星座点的总数M和码率,使用来自一个或几个星座的不均匀星座,每个星座包括一个或多个星座。

Patent Agency Ranking