公开(公告)号：US20150146802A1

公开(公告)日：2015-05-28

申请号：US14540519

申请日：2014-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong SHIN ,  Jinwoo KIM ,  Woosuk KO ,  Jaeho HWANG ,  Sungryong HONG

IPC: H04L1/00 ,  H04L1/06 ,  H04H20/71 ,  H04L27/26 ,  H04H20/59

CPC classification number: H04L27/2646 ,  H04H20/33 ,  H04H20/423 ,  H04H20/59 ,  H04L1/0042 ,  H04L1/0048 ,  H04L1/0057 ,  H04L1/0063 ,  H04L1/0064 ,  H04L1/0071 ,  H04L1/0083 ,  H04L1/009 ,  H04L1/0091 ,  H04L1/0625 ,  H04L1/0631 ,  H04L5/0007 ,  H04L27/2601

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, an encoder for encoding signaling data and information data about emergency, a frame builder for building at least one signal frame including the encoded service data, the encoded signaling data and the encoded information data about emergency, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.

Abstract translation: 公开了一种用于发送广播信号的方法和装置。 用于发送广播信号的装置，该装置包括用于对与多个数据传输路径中的每一个对应的服务数据进行编码的编码器，其中数据传输路径中的每一个承载至少一个服务组件，用于编码信令数据和信息数据的编码器 关于紧急情况的帧构建器，用于构建包括编码服务数据，编码信令数据和关于紧急的编码信息数据的至少一个信号帧的帧构建器，用于通过OFDM（正交频分复用）调制至少一个信号帧的调制器， 方案和用于发送携带至少一个调制信号帧的广播信号的发射机。

公开(公告)号：US09025689B2

公开(公告)日：2015-05-05

申请号：US13873081

申请日：2013-04-29

Applicant: STMicroelectronics S.r.l.

Inventor： Massimiliano Siti ,  Alessandro Tomasoni ,  Marco Ferrari ,  Sandro Bellini ,  Oscar Volpatti

IPC: H04L1/00 ,  H04B7/04 ,  H04L25/03 ,  H04L1/06

CPC classification number: H04L1/0055 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0064 ,  H04L1/0656 ,  H04L25/03171 ,  H04L25/03292 ,  H04L25/03331 ,  H04L25/03891 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: An embodiment of an arrangement detects sequences of digitally modulated symbols from multiple sources. The arrangement identifies a suitable set of candidate values for at least one transmitted sequence of symbols and determines for each candidate value a set of sequences of transmitted symbols. The arrangement estimates at least one further set of sequences of transmitted symbols, calculates a metric for each sequence of transmitted symbols, and selects the sequence that maximizes the metric. At the end, a-posteriori bit soft output information for the selected sequence is calculated from the metrics for said sequences. Generally, these calculations are based on the information coming from a channel-state-information matrix and a-priori information on the modulated symbols from a second module, such as a forward error-correction-code (ECC) decoder.

Abstract translation: 布置的实施例检测来自多个源的数字调制符号的序列。 该装置为至少一个发送的符号序列识别适当的一组候选值，并且为每个候选值确定一组发送符号的序列。 该装置估计至少一组另外的发送符号序列集合，计算发送符号的每个序列的度量，并选择使度量最大化的序列。 最后，从所述序列的度量计算所选序列的后验位软输出信息。 通常，这些计算基于来自信道状态信息矩阵的信息和来自第二模块（诸如前向纠错码（ECC））解码器的调制符号的先验信息。

公开(公告)号：US08923440B1

公开(公告)日：2014-12-30

申请号：US12284191

申请日：2008-09-19

Applicant: Ramanand Venkata ,  Binh Ton

Inventor： Ramanand Venkata ,  Binh Ton

IPC: H03K9/00 ,  H04L27/00

CPC classification number: H04L25/4908 ,  H04J3/0605 ,  H04J3/062 ,  H04J3/0685 ,  H04J3/07 ,  H04L1/0064

Abstract: Transmitter and receiver circuitry for 64b/66b encoding or other similar padded data signalling. The required transmitter clock circuitry is simplified by using one clock signal source as a basis for at least partly processing the data both before and after padding. Appropriate frequency multiplication and division factors are employed to make this possible. Similar techniques are used in receiver circuitry.

Abstract translation: 用于64b / 66b编码或其他类似填充数据信令的发射机和接收机电路。 通过使用一个时钟信号源作为在填充之前和之后至少部分地处理数据的基础来简化所需的发送器时钟电路。 采用适当的倍频和除数因子使其成为可能。 在接收机电路中使用类似的技术。

公开(公告)号：US20140256369A1

公开(公告)日：2014-09-11

申请号：US14201203

申请日：2014-03-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju JI ,  Yongjun KWAK ,  Younsun KIM ,  Sangmin RO ,  Juho LEE

IPC: H04W76/02

CPC classification number: H04W76/021 ,  H04L1/00 ,  H04L1/0064 ,  H04L2001/0093 ,  H04W8/005 ,  H04W48/14 ,  H04W56/0025 ,  H04W72/00 ,  H04W76/11 ,  H04W76/14 ,  H04W92/18

Abstract: A method for allowing terminals to exchange discovery or synchronization signals to determine their presences among each other within a service area of a base station is provided. The method includes collecting multicast identifiers of another terminal for use in multicast communication, receiving a multicast control channel for Device-to-Device (D2D) multicast communication, performing Cyclic Redundancy Check (CRC) on the received multicast control channel using the collected multicast identifiers, and receiving, when the CRC is successful, the D2D multicast according to the multicast control channel. The D2D communication method and apparatus is advantageous in that the D2D terminal is capable of transmitting the discovery or synchronization signal to discover the neighbor terminals without disturbing downlink or uplink communication between the base station and the terminal, wherein the base station configures the resource for D2D communication so as to support D2D communication without an inter-device interference.

Abstract translation: 提供了一种允许终端在基站的服务区域内交换发现或同步信号以确定其彼此之间的存在的方法。 该方法包括收集用于组播通信的另一终端的组播标识符，接收用于设备到设备（D2D）组播通信的组播控制信道，使用所收集的多播标识符对所接收的组播控制信道执行循环冗余校验（CRC） 并且当CRC成功时，根据组播控制信道接收D2D多播。 D2D通信方法和装置的优点在于，D2D终端能够发送发现或同步信号以发现相邻终端，而不干扰基站和终端之间的下行链路或上行链路通信，其中基站配置用于D2D的资源 通信，以支持D2D通信，而不受设备间干扰。

公开(公告)号：US08675693B2

公开(公告)日：2014-03-18

申请号：US12430629

申请日：2009-04-27

Applicant: Ravi Palanki ,  Hemanth Sampath

Inventor： Ravi Palanki ,  Hemanth Sampath

IPC: H04J99/00

CPC classification number: H04L1/005 ,  H04L1/0016 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0064 ,  H04L1/1812

Abstract: Techniques for transmitting and receiving data in a communication system are described. A receiver may iteratively decode a data packet and may obtain better performance with more decoding iterations. The receiver may select the number of decoding iterations based on at least one parameter (e.g., packet size) to tradeoff between decoder throughput and link performance. In one design, a transmitter may obtain a transport format selected based on the number of decoding iterations, process a data packet in accordance with the transport format, and send a transmission of the data packet to the receiver. The receiver may receive the transmission of the data packet and may perform decoding for the data packet for up to the selected number of decoding iterations. The transport format and/or CQI information may be determined based on an expected degradation in link performance due to the receiver performing the selected number of decoding iterations.

Abstract translation: 描述在通信系统中发送和接收数据的技术。 接收机可以迭代地解码数据分组，并且可以通过更多的解码迭代获得更好的性能。 接收机可以基于至少一个参数（例如，分组大小）来选择解码迭代次数以在解码器吞吐量和链路性能之间进行权衡。 在一种设计中，发射机可以获得基于解码迭代次数选择的传输格式，根据传输格式处理数据分组，并将数据分组的传输发送到接收机。 接收机可以接收数据分组的传输，并且可以对数据分组执行多达解码迭代次数的解码。 传输格式和/或CQI信息可以基于由于接收机执行选定数量的解码迭代而导致的链路性能的预期劣化来确定。

公开(公告)号：US07971129B2

公开(公告)日：2011-06-28

申请号：US11747191

申请日：2007-05-10

Applicant: Mark Watson ,  Michael G. Luby

Inventor： Mark Watson ,  Michael G. Luby

IPC: H03M13/00

CPC classification number: H03M13/03 ,  H04L1/0052 ,  H04L1/0064

Abstract: A method of encoding data for transmissions from a source to a destination over a communications channel is provided. The method operates on an ordered set of source symbols and may generate zero or more redundant symbols from the source symbols, wherein data is encoded in a first step according to a simple FEC code and in a second step, data is encoded according to a second FEC code, more complex than the first FEC code. The first FEC code and/or the second FEC code might comprise coding known in the art. These steps result in two groups of encoded data in such a way that a low-complexity receiver may make use of one of the groups of encoded data while higher complexity receivers may make use of both groups of encoded data.

Abstract translation: 提供了一种通过通信信道对从源到目的地的传输的数据进行编码的方法。 该方法对有序的一组源符号进行操作，并且可以从源符号生成零个或多个冗余符号，其中根据简单FEC码在第一步骤中对数据进行编码，并且在第二步骤中，根据第二步对数据进行编码 FEC码，比第一个FEC码更复杂。 第一FEC码和/或第二FEC码可以包括本领域已知的编码。 这些步骤产生两组编码数据，使得低复杂度的接收机可以利用编码数据组之一，而较高复杂度的接收机可以利用两组编码数据。

公开(公告)号：US20090271688A1

公开(公告)日：2009-10-29

申请号：US12430719

申请日：2009-04-27

Applicant: Jing Jiang ,  Fuyun Ling ,  Thomas Sun ,  Tao Tian ,  Raghuraman Krishnamoorthi

Inventor： Jing Jiang ,  Fuyun Ling ,  Thomas Sun ,  Tao Tian ,  Raghuraman Krishnamoorthi

IPC: H03M13/15 ,  G06F11/10

CPC classification number: H03M13/112 ,  H03M13/1111 ,  H03M13/1117 ,  H03M13/1191 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/19 ,  H03M13/23 ,  H03M13/2966 ,  H03M13/658 ,  H04L1/005 ,  H04L1/0064

Abstract: Received communication signals may be decoded according to a combined, iterative inner code-outer code decoding technique. The inner code decoding is based on information produced by the outer code decoding.

Abstract translation: 接收到的通信信号可以根据组合的迭代内码外码解码技术进行解码。 内码解码是基于由外码解码产生的信息。

公开(公告)号：US20090217138A1

公开(公告)日：2009-08-27

申请号：US12426513

申请日：2009-04-20

Applicant: Azzedine Touzni ,  Ravikiran Rajagopal

Inventor： Azzedine Touzni ,  Ravikiran Rajagopal

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H04L1/0051 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2915 ,  H03M13/2918 ,  H03M13/293 ,  H03M13/2948 ,  H03M13/2957 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6541 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0065 ,  H04L1/0068

Abstract: A receiver employs iterative decoding of packet data, where the packet data represents a data frame encoded with at least two logical dimensions. A logical dimension refers to a layer, or sub-layer, of a layered network architecture. Consequently, a first logical dimension of encoding might refer to error detection in a packet frame at the data link layer, while a second logical dimension of coding might refer to error detection/correction encoding at a physical layer. For example, a data frame might be divided into several packets, each with a corresponding cyclic redundancy check (CRC) value as coding in the first logical dimension, which are then transmitted with a convolutional code as coding in the second logical dimension. The receiver performs iterative decoding in the first and second logical dimensions until either i) all errors are identified and corrected or ii) another type of stopping condition is met.

Abstract translation: 接收机使用分组数据的迭代解码，其中分组数据表示以至少两个逻辑维度编码的数据帧。 逻辑维度是指分层网络架构的层或子层。 因此，编码的第一逻辑维度可以指在数据链路层的分组帧中的错误检测，而编码的第二逻辑维度可以指在物理层处的错误检测/校正编码。 例如，数据帧可以被划分成几个分组，每个分组具有作为第一逻辑维度中的编码的对应的循环冗余校验（CRC）值，然后以卷积码作为编码在第二逻辑维度中发送。 接收机在第一和第二逻辑维度中执行迭代解码，直到i）识别和校正所有错误或者ii）满足另一种类型的停止条件。

公开(公告)号：US20090161786A1

公开(公告)日：2009-06-25

申请号：US12145834

申请日：2008-06-25

Applicant: Takao NAKAGAWA ,  Tetsuya YANO ,  Kazuhisa OBUCHI

Inventor： Takao NAKAGAWA ,  Tetsuya YANO ,  Kazuhisa OBUCHI

IPC: H04L25/34

CPC classification number: H04L27/34 ,  H03M13/256 ,  H03M13/258 ,  H03M13/2957 ,  H03M13/2966 ,  H03M13/356 ,  H04L1/0041 ,  H04L1/006 ,  H04L1/0064 ,  H04L2001/0098

Abstract: A transmitter for use in digital radio communications systems includes: a bit corrector controls bit arrangement in such a manner that a code having high significance, out of multiple codes obtained by coding, is allocated with high priority to a bit having a tendency that the likelihood enlarges at the time of symbol decision on a receiver; a multi-level modulator allocates the code to the multiple bits in accordance with a predetermined symbol arrangement; and a symbol arrangement controller controls the symbol arrangement from equal distance arrangement to another arrangement in accordance with a ratio of the codes different in significance. To control symbol arrangement increases the effect of bit correction and improves an error rate on the receiver.

Abstract translation: 用于数字无线电通信系统的发射机包括：比特校正器以这样的方式控制比特排列，使得通过编码获得的多个码中具有高重要性的代码被高度优先地分配给具有趋势的比特 在接收者的符号决定时放大; 多级调制器根据预定的符号排列将码分配给多个比特; 并且符号排列控制器根据重要性不同的代码的比例，将符号排列从相等的距离布置控制到另一个排列。 为了控制符号排列，增加了位校正的效果，提高了接收机的误码率。

公开(公告)号：US20080115035A1

公开(公告)日：2008-05-15

申请号：US11598806

申请日：2006-11-14

Applicant: Jun Lee ,  Jihoon Park ,  Jaekyun Moon

Inventor： Jun Lee ,  Jihoon Park ,  Jaekyun Moon

IPC: H03M13/15 ,  G06F11/10 ,  H03M13/41

CPC classification number: G11B20/10009 ,  G11B20/10055 ,  G11B20/1833 ,  G11B2020/1836 ,  G11B2020/1863 ,  H03M13/41 ,  H04L1/0054 ,  H04L1/0064

Abstract: In an error correction method, a codeword is transmitted through a noisy communication channel and detected by a receiving device. An error detection code is then applied to the detected codeword to generate a syndrome. Where the syndrome is not all zero, the codeword is determined to contain some error. Accordingly, the method computes a set of potential error start positions for a plurality of error events based on a syndrome value corresponding to the syndrome. Next, a confidence value is computed for each of the plurality of error events at each of the potential error start positions in the refined set, and finally, a most likely error event in the detected codeword is corrected based on an error event and corresponding potential error start position having the highest confidence value.

Abstract translation: 在纠错方法中，通过噪声通信信道发送码字，并由接收装置进行检测。 然后将错误检测码应用于检测到的码字以产生综合征。 在不完全为零的情况下，确定码字包含一些错误。 因此，该方法基于与该综合征对应的综合征值计算多个错误事件的潜在错误开始位置的集合。 接下来，针对精细集合中的每个潜在错误开始位置处的多个错误事件中的每一个计算置信度值，最后，基于错误事件和相应的电位来校正检测到的码字中最可能的错误事件 误差开始位置具有最高的置信度值。