TRANSMITTER AND METHOD OF TRANSMITTING PAYLOAD DATA, RECEIVER AND METHOD OF RECEIVING PAYLOAD DATA IN AN OFDM SYSTEM

    公开(公告)号:US20170324600A1

    公开(公告)日:2017-11-09

    申请号:US15657246

    申请日:2017-07-24

    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 OFDM 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.

    CODING AND MODULATION APPARATUS USING NON-UNIFORM CONSTELLATION
    2.
    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。

    RECEIVER FOR RECEIVING DATA IN A BROADCAST SYSTEM USING REDUNDANCY DATA

    公开(公告)号:US20190268093A1

    公开(公告)日:2019-08-29

    申请号:US16405452

    申请日:2019-05-07

    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 demodulates the channel symbols into codewords and a decoder decodes the codewords into output data words. A broadband receiver obtains redundancy data via a broadband system, the redundancy data for a channel symbol including one or more least robust bits of the channel symbol or a constellation subset identifier indicating a subset of constellation points including the constellation point representing the channel symbol. The demodulator and/or the decoder is configured to use the redundancy data to demodulate the respective channel symbol and to decode the respective codeword, respectively.

    TRANSMITTER AND RECEIVER USING CHANNEL BUNDLING

    公开(公告)号:US20170366381A1

    公开(公告)日:2017-12-21

    申请号:US15533113

    申请日:2015-12-08

    Abstract: A transmitter and a receiver for communicating data using at least two separate RF channels using channel bundling. The transmitter includes a data stream partitioner configured to partition a data stream of data to be communicated into two or more stream partitions, two or more modulators configured to each receive a stream partition and to generate modulated data from the received stream partition, and an interleaver configured to assign the modulated data generated by a modulator from a received stream partition to different RF channels for transmission.

    MIMO RECEIVING APPARATUS AND MIMO PREPROCESSING APPARATUS
    9.
    发明申请
    MIMO RECEIVING APPARATUS AND MIMO PREPROCESSING APPARATUS 有权
    MIMO接收设备和MIMO预处理设备

    公开(公告)号:US20160020835A1

    公开(公告)日:2016-01-21

    申请号:US14771721

    申请日:2014-02-26

    CPC classification number: H04B7/0413 H04L1/06 H04L5/0023 H04W72/0473

    Abstract: A MIMO receiving system includes a MIMO antenna apparatus that receives a MIMO transmission signal including at least two MIMO transmission signal streams, wherein the MIMO transmission signal includes one or more MIMO transmission channels and wherein a MIMO transmission channel carrying one or more services includes two MIMO receive signal components covering a same frequency channel and being included in different transmission signal streams. A MIMO preprocessing apparatus preprocesses the MIMO transmission signal and outputs a multiplex signal. One or more receiving apparatus receive the multiplex signal from the output signal path to use a service contained in the single multiplex signal and output a service data stream.

    Abstract translation: MIMO接收系统包括接收包括至少两个MIMO传输信号流的MIMO传输信号的MIMO天线装置,其中MIMO传输信号包括一个或多个MIMO传输信道,并且其中承载一个或多个业务的MIMO传输信道包括两个MIMO 接收覆盖相同频道并包含在不同传输信号流中的信号分量。 MIMO预处理装置对MIMO传输信号进行预处理并输出多路复用信号。 一个或多个接收装置从输出信号路径接收多路复用信号,以使用包含在单个多路复用信号中的服务并输出服务数据流。

    TRANSMISSION APPARATUS AND METHOD USING PRE-DISTORTION
    10.
    发明申请
    TRANSMISSION APPARATUS AND METHOD USING PRE-DISTORTION 有权
    传输装置和使用预失真的方法

    公开(公告)号:US20150244545A1

    公开(公告)日:2015-08-27

    申请号:US14711050

    申请日:2015-05-13

    Abstract: The present invention relates to a transmission apparatus and a corresponding transmission method for transmitting data within a multi-carrier transmission system comprising two or more transmission apparatuses that are configured to transmit the same data. To avoid destructive interferences a transmission apparatus (10) is proposed comprising a signal input (30) configured to receive multi-carrier signals (S(k)) carrying data to be transmitted, a distortion unit (32) configured to distort said multi-carrier signals (S(k)) by use of a distortion function (P(k)) including a phase parameter for differently modulating the phase of said multi-carrier signals (S(k)), wherein said distortion function (P(k)) is different from distortion functions used by other transmission apparatuses, whose coverage areas overlap with the coverage area of the present transmission apparatus, by using a phase parameter that is different from the phase parameter used by said other transmission apparatuses, and a transmission unit (34) configured to transmit said distorted multi-carrier signals as transmission signal (Tx(k)).

    Abstract translation: 本发明涉及一种在多载波传输系统内发送数据的发送装置和相应的发送方法,该多载波传输系统包括被配置为发送相同数据的两个或多个发送装置。 为了避免破坏性干扰,提出了一种发送装置(10),其包括被配置为接收承载要发送的数据的多载波信号(S(k))的信号输入(30),失真单元(32) 使用包括用于不同地调制所述多载波信号(S(k))的相位的相位参数的失真函数(P(k))的载波信号(S(k)),其中所述失真函数 ))不同于其覆盖区域与本发送装置的覆盖区域重叠的其他发送装置使用的失真函数,通过使用与所述其他发送装置使用的相位参数不同的相位参数,以及发送单元 (34),被配置为发送所述失真的多载波信号作为发送信号(Tx(k))。

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