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    • 1. 发明公开
    • Pipelined architecture to decode parallel and serial concatenated codes
    • 管道建​​筑工程师和工程师代码
    • EP1175014A2
    • 2002-01-23
    • EP01123870.6
    • 2000-01-25
    • TRW Inc.
    • Smith, Ronald P.Saunders, Oliver W.
    • H03M13/29
    • H03M13/2987H03M13/2957
    • The present invention provides a method and apparatus (400) for iteratively decoding data which has been encoded with contatenated codes. The apparatus (400) includes pipelined and cascaded decoder processors (406, 430 and 436) connected to a multiple block memory device (402), through a multiplexing and data control block (404). A data decision element (437) is provided for generating decoded output data. The method includes receiving encoded data (802) while data already received is processed iteratively by decoder processors in a pipelined fashion. Decoder processors are designated to perform particular iterations (810) of an iterative decoding process which are performed simultaneously. Each of said decoder processors processes a subset of a total number of decoding iterations. As a decoder processor completes processing its designated iteration on a block of data, the decoder processor outputs decoding information (808) to the decoding processor designated to perform the subsequent iteration. Upon completion of all iterations for a block of data, the method includes generating output (814) consisting of the decoded data block. The method provides that once processing is complete on a data block, the memory block is made available (816) for the storing of new encoded input data.
    • 本发明提供了一种迭代地解码已经用连续编码编码的数据的方法和装置(400)。 装置(400)包括通过复用和数据控制块(404)连接到多块存储器装置(402)的流水线化和级联解码器处理器(406,430和436)。 提供用于产生解码输出数据的数据判定元件(437)。 该方法包括接收编码数据(802),而已经接收的数据被解码器处理器以流水线方式迭代地处理。 指定解码器处理器执行同时执行的迭代解码处理的特定迭代(810)。 每个解码器处理器处理总数解码迭代的子集。 当解码器处理器完成对数据块处理其指定的迭代时,解码器处理器将解码信息(808)输出到被指定进行后续迭代的解码处理器。 在完成数据块的所有迭代之后,该方法包括生成由解码的数据块组成的输出(814)。 该方法提供一旦处理在数据块上完成,存储块就可用于存储新的编码输入数据(816)。
    • 2. 发明公开
    • Enhanced satellite data terminal
    • 甜点Satellitendatenendgerät
    • EP1126634A2
    • 2001-08-22
    • EP00126594.1
    • 2000-12-13
    • TRW Inc.
    • Saunders, Oliver W.
    • H04B7/185
    • H04B7/18597
    • An enhanced satellite data terminal (104) for communicating satellite and network data includes a portable environmental casing (108) protecting wireless LAN circuitry (112) coupled to a wireless LAN antenna (110). The wireless LAN circuitry (112) is also coupled to satellite data terminal circuitry (114) (and associated satellite antenna (116)). The wireless LAN circuitry (112) and satellite data terminal circuitry (114) are integrated together in the portable environmental casing (108) as a single unit. The environmental casing (108) may, for example, be water-tight and may be comprised of plastic, fiberglass, or aluminum. Moreover, the enhanced satellite data terminal (104) may include a power source (130) coupled to the wireless LAN circuitry (112) and the satellite data terminal circuitry (114).
    • 用于传送卫星和网络数据的增强卫星数据终端(104)包括保护耦合到无线LAN天线(110)的无线LAN电路(112)的便携式环境外壳(108)。 无线LAN电路(112)还耦合到卫星数据终端电路(114)(和相关联的卫星天线(116))。 无线LAN电路(112)和卫星数据终端电路(114)作为单个单元集成在便携式环境外壳(108)中。 环境外壳(108)可以例如是水密的并且可以由塑料,玻璃纤维或铝构成。 此外,增强卫星数据终端(104)可以包括耦合到无线LAN电路(112)和卫星数据终端电路(114)的电源(130)。
    • 3. 发明公开
    • Error correction encoder for in-flight programmable spacecraft
    • Fehlerkorrekturkoderfürim-Flug-programmierbares Raumfahrzeug
    • EP1006680A2
    • 2000-06-07
    • EP99123158.0
    • 1999-11-22
    • TRW INC.
    • Saunders, Oliver W.
    • H04B7/185H04L1/00
    • H04L1/0041H04B7/18534
    • An error correction encoding system (20) is provided for use in an in-flight programmable spacecraft. The error correction encoding system (22) includes a first data routing switch (22) which receives an uncoded data stream and directs the uncoded data stream to either of a first encoding device (26) or a second encoding device (24). The first encoding device (26) receives the uncoded data stream from the first data routing switch (22) and applies a first encoding function. Alternatively, the second encoding device (24), having a plurality of programmable logic blocks, receives the uncoded data stream from the first data routing switch (22) and applies a second encoding function. A controller (30) is connected to the second encoding device (24) for configuring the plurality of programmable logic blocks to perform the second encoding function. Lastly, a second data routing switch (22) receives a coded data stream from either of the first encoding device (26) or the second encoding device (24) and outputs a coded data stream.
    • 提供了一种在飞行中可编程的航天器中使用的纠错编码系统(20)。 纠错编码系统(22)包括第一数据路由选择开关(22),其接收未编码的数据流,并将未编码的数据流引导到第一编码装置(26)或第二编码装置(24)中的任一个。 第一编码装置(26)从第一数据路由选择开关(22)接收未编码数据流并应用第一编码功能。 或者,具有多个可编程逻辑块的第二编码装置(24)从第一数据路由选择开关(22)接收未编码数据流并应用第二编码功能。 控制器(30)连接到第二编码装置(24),用于配置多个可编程逻辑块以执行第二编码功能。 最后,第二数据路由交换机(22)接收来自第一编码装置(26)或第二编码装置(24)的编码数据流,并输出编码数据流。
    • 5. 发明公开
    • Bulk filtering and demodulation of independent FDMA sources
    • Verfahren zum Filtrieren和Demodulieren vonunabhängigenFDMA Quellen
    • EP0924877A2
    • 1999-06-23
    • EP98123470.1
    • 1998-12-11
    • TRW Inc.
    • Develet, Jean A., Jr.Saunders, Oliver W.Perahia, Eldad (NMI)
    • H04B7/208
    • H04B7/208H04L5/023
    • A satellite communications technique is disclosed that synchronizes the reception of numerous OFDM uplink signals (108, 110) at a satellite (106) receiver and bulk processes them in the satellite (106). In operation, the satellite (106) receives an OFDM uplink signal (110) transmitted by a CPE (104). The satellite 106 then compares the reception timing of the symbols in the received OFDM uplink signal (110) with a satellite timing reference, and generates a timing correction. The satellite (106) provides a downlink symbol clock as inherent structure in a downlink beam to the CPE (104) and also transmits the timing correction in the downlink beam. The CPE (104) uses the downlink symbol clock in conjunction with the timing correction to generate an uplink clock. The CPE (104) then transmits data in the OFDM uplink signal (110) synchronously with the uplink clock. Each CPE (102, 104) may be synchronized in this manner. In addition, the satellite (106) may also periodically re-compare the reception timing of the OFDM uplink signals (108, 110) with the satellite timing reference to generate new timing corrections, if necessary, for the CPEs (102, 104).
    • 公开了一种卫星通信技术,其同步在卫星(106)接收机处的多个OFDM上行链路信号(108,110)的接收,并且在卫星(106)中批量处理它们。 在操作中,卫星(106)接收由CPE(104)发送的OFDM上行链路信号(110)。 然后,卫星106将接收到的OFDM上行链路信号(110)中的符号的接收定时与卫星定时基准进行比较,并生成定时校正。 卫星(106)提供下行链路符号时钟作为到CPE(104)的下行链路波束中的固有结构,并且还在下行链路波束中发送定时校正。 CPE(104)使用下行链路符号时钟与定时校正相结合来产生上行链路时钟。 然后,CPE(104)与上行链路时钟同步地在OFDM上行链路信号(110)中发送数据。 可以以这种方式同步每个CPE(102,104)。 此外,卫星(106)还可以周期性地重新比较OFDM上行链路信号(108,110)的接收定时与卫星定时参考,以便如果需要,为CPE(102,104)生成新的定时校正。
    • 6. 发明公开
    • Pipelined architecture to decode parallel and serial concatenated codes
    • 流水线结构,用于解码并行和串行级联码
    • EP1175014A3
    • 2003-09-17
    • EP01123870.6
    • 2000-01-25
    • TRW Inc.
    • Smith, Ronald P.Saunders, Oliver W.
    • H03M13/29
    • H03M13/2987H03M13/2957
    • The present invention provides a method and apparatus (400) for iteratively decoding data which has been encoded with contatenated codes. The apparatus (400) includes pipelined and cascaded decoder processors (406, 430 and 436) connected to a multiple block memory device (402), through a multiplexing and data control block (404). A data decision element (437) is provided for generating decoded output data. The method includes receiving encoded data (802) while data already received is processed iteratively by decoder processors in a pipelined fashion. Decoder processors are designated to perform particular iterations (810) of an iterative decoding process which are performed simultaneously. Each of said decoder processors processes a subset of a total number of decoding iterations. As a decoder processor completes processing its designated iteration on a block of data, the decoder processor outputs decoding information (808) to the decoding processor designated to perform the subsequent iteration. Upon completion of all iterations for a block of data, the method includes generating output (814) consisting of the decoded data block. The method provides that once processing is complete on a data block, the memory block is made available (816) for the storing of new encoded input data.
    • 9. 发明公开
    • High efficiency signaling with selective coding and interleaving
    • 具有选择性编码和交织的高效率信令
    • EP1199828A2
    • 2002-04-24
    • EP01123271.7
    • 2001-10-04
    • TRW Inc.
    • Saunders, Oliver W.Berger, Harvey L.
    • H04L1/00H04B7/185
    • H04L1/0057H04B7/18515H04B7/18543H04L1/0009H04L1/0053H04L1/0059H04L1/0065H04L1/0066H04L1/0071H04L1/0072
    • A method is disclosed for efficiently transmitting large numbers of data channels through a satellite (24). The method uses a block encoder (28) that encodes the data channels with a block code to produce an encoded uplink data stream. A modulator (30) modulates the encoded uplink data stream. A transmit antenna (32) then sends the resultant modulated uplink data stream (34) to the satellite (24). The satellite uses a satellite demodulator (48) and a switch (50) to produce an internal data stream consisting of selected data channels in the uplink data stream (34). The internal data stream is fed into a convolutional encoder (52). The output of the convolutional encoder (52) is connected to a satellite modulator (54). The satellite transmit antenna (56) then sends the resultant modulated downlink data stream (58) to a receiver.
    • 公开了一种通过卫星(24)有效地传输大量数据信道的方法。 该方法使用块编码器(28),其使用块码对数据信道进行编码,以产生经编码的上行链路数据流。 调制器(30)调制编码的上行链路数据流。 然后,发射天线(32)将所得到的调制上行链路数据流(34)发送到卫星(24)。 卫星使用卫星解调器(48)和开关(50)来产生由上行链路数据流(34)中的选择的数据信道组成的内部数据流。 内部数据流被馈送到卷积编码器(52)。 卷积编码器(52)的输出连接到卫星调制器(54)。 卫星发射天线(56)然后将得到的调制下行链路数据流(58)发送到接收机。
    • 10. 发明公开
    • Burst and packet wireless transmission using product codes with iterative decoding
    • 通过用迭代解码产品代码分组和数据突发的无线传输
    • EP1117212A2
    • 2001-07-18
    • EP00127934.8
    • 2000-12-20
    • TRW Inc.
    • Berger, Harvey L.Saunders, Oliver W.
    • H04L12/56
    • H04Q11/0478H04L2012/5607H04L2012/5647H04L2012/5675
    • A communication subsystem (300) for transmitting error correction coded data in packets (200) includes an input buffer (302) storing unencoded data, a product coder (304) coupled to the input buffer, and a time division transmitter (306). The product coder (304) outputs product coded data packets (200) having a packet size, and the time division transmitter (306) transmits the product coded data packets (200) in a data section (109) of a frame (104). The data section (109) has a length substantially equal to an integer multiple of the packet size. The communication subsystem (300) may use a (s, t) x (n, m) product code specifically adapted to product code 53 byte ATM cells. A method for communicating error correction coded data in packets includes storing unencoded data in an input buffer (402), product coding the unencoded data (404), and outputting product coded data packets (406) having a packet size. The method also includes time division transmitting (408) the coded data packets in a data section (109) of a frame (104) where the data section length is substantially equal to an integer multiple of the packet size.
    • 对于在数据包(200)发送的纠错编码数据的通信子系统(300)包括在INPUTBUFFER(302)中存储未编码的数据,耦合到所述输入缓冲器中的编码器的产品(304),以及一个时分发送器(306)。 产物编码器(304)输出具有分组大小乘积编码的数据分组(200),以及时分发送器(306)发送在帧(104)的数据部(109)的产物编码的数据分组(200)。 数据部分(109)具有在所述数据包的大小的整数倍大致相等的长度。 通信子系统(300)可以使用(S,T)×(N,M)产品代码特别适于乘积码的53字节ATM信元。 一种用于在分组通信的纠错编码数据的方法包括在未编码在INPUTBUFFER(402)存储数据,产品编码未编码数据(404)和具有分组大小输出婷产物编码的数据分组(406)。 因此,该方法包括:时间分割传送(408)中的框架(104),其中该数据段长度是在分组大小的整数倍大致相等的数据段(109)的编码数据的数据包。