-
公开(公告)号：USD633227S1
公开(公告)日：2011-02-22
申请号：US29366559
申请日：2010-07-27
-
公开(公告)号：US20110041044A1
公开(公告)日：2011-02-17
申请号：US12937366
申请日：2009-07-06
CPC分类号： H03M13/1154 , H03M13/116 , H03M13/13 , H03M13/235 , H03M13/616 , H03M13/617 , H03M13/6306 , H03M13/635 , H03M13/6356 , H03M13/6516 , H03M13/6527 , H04B3/542 , H04L1/0041 , H04L1/0058
摘要： An encoder and decoder using LDPC-CC (Low Density Parity Check-Convolutional Codes) is disclosed. The encoder exhibits encoding rates realized with a small circuit-scale and a high data reception quality. In the encoder (200), an encoding rate setting unit (250) sets an encoding rate (s−1)/s (s=z), and an information creating unit (210) sets information including from information Xs,i to information Xz−1,i to zero. A first information computing unit (220-1) receives information X1,i at time point i to compute the X1(D) term of formula (1). A second information computing unit (220-2) receives information X2,i at time point i to compute the X2(D) term of formula (1). A third information computing unit (220-3) receives information X3,i at time point i to compute the X3(D) term of formula (1). A parity computing unit (230) receives parity Pi−1 at time point i−1 to compute the P(D) of formula (1). The exclusive OR of the results of the computation is obtained as parity Pi at time i. Ax.
摘要翻译： 公开了一种使用LDPC-CC（低密度奇偶校验卷积码）的编码器和解码器。 编码器表现出具有小电路规模和高数据接收质量实现的编码速率。 在编码器（200）中，编码率设定部（250）设定编码率（s-1）/ s（s = z），信息生成部210将信息Xs，i， Xz-1，我为零。 第一信息计算单元（220-1）在时间点i接收信息X1，i，以计算公式（1）的X1（D）项。 第二信息计算单元（220-2）在时间点i接收信息X2，i，以计算公式（1）的X2（D）项。 第三信息计算单元（220-3）在时间点i接收信息X3，i，以计算公式（1）的X3（D）项。 奇偶校验计算单元（230）在时间点i-1处接收奇偶校验Pi-1以计算公式（1）的P（D）。 计算结果的异或获得为时间i的奇偶校验Pi。 斧头。
-
33.发明授权公开(公告)号：US07889130B2
公开(公告)日：2011-02-15
申请号：US11813642
申请日：2005-11-25
CPC分类号： H04B7/0413 , H04J15/00 , H04L1/06 , H04L1/1893 , H04L5/0044 , H04L5/0053 , H04L25/0204 , H04L27/2657
摘要： A multi-antenna transmitting apparatus wherein a relatively simple selection procedure can be used to reconcile the data transmission rate and the received data quality. When a transport signal, which is required to have a higher quality than other signals, is to be transmitted, a vector multiplexing part (105) reduces the number of transport beams (i.e., reduces the number of unique paths used for transmission), and further gives a higher priority to a unique vector belonging to a large unique value and uses that unique vector to vector multiplex the transport signal, thereby forming a transport beam (i.e., gives a higher priority to a signal, which is required to have a high quality, and transmits that signal by use of a unique path having a large path gain).
摘要翻译： 一种多天线发送装置，其中可以使用相对简单的选择过程来协调数据传输速率和接收的数据质量。 当要传送要求具有比其他信号更高质量的传输信号时，矢量复用部分（105）减少传输光束的数量（即，减少用于传输的唯一路径的数目），以及 进一步给予属于大的唯一值的唯一向量更高的优先权，并且使用该唯一向量来对传输信号进行矢量多路复用，从而形成传输波束（即，给信号提供更高的优先级，这要求具有高的信号 质量，并通过使用具有大路径增益的唯一路径发送该信号）。
-
公开(公告)号：USD629130S1
公开(公告)日：2010-12-14
申请号：US29363030
申请日：2010-06-03
-
35.发明申请公开(公告)号：US20100284488A1
公开(公告)日：2010-11-11
申请号：US12840024
申请日：2010-07-20
IPC分类号： H04L27/00
CPC分类号： H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要： A MIMO-OFDM transmission apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection.Pilot symbol mapping (1111) is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain.Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
摘要翻译： 提供了MIMO-OFDM发送装置，其允许频率偏移的高精度估计，传输路径波动的高精度估计和高精度同步/信号检测。 提供导频符号映射（1111），用于通过在从时域中的各个天线同时发送的OFDM信号中分配正交序列到对应的子载波来形成导频载波。 即使在多个信道（天线）中复用导频符号的情况下，也能够高精度地估计频率偏移/相位噪声。
-
36.发明授权公开(公告)号：US07826555B2
公开(公告)日：2010-11-02
申请号：US11577791
申请日：2006-08-24
CPC分类号： H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要： A MIMO-OFDM transmission apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection.Pilot symbol mapping (1111) is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain.Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
摘要翻译： 提供了MIMO-OFDM发送装置，其允许频率偏移的高精度估计，传输路径波动的高精度估计和高精度同步/信号检测。 提供导频符号映射（1111），用于通过在从时域中的各个天线同时发送的OFDM信号中分配正交序列到对应的子载波来形成导频载波。 即使在多个信道（天线）中复用导频符号的情况下，也能够高精度地估计频率偏移/相位噪声。
-
37.发明授权Communication method, and transmitting apparatus and receiving apparatus using that communication method 有权通信方法，以及使用该通信方法的发送装置和接收装置公开(公告)号：US07787432B2
公开(公告)日：2010-08-31
申请号：US12417284
申请日：2009-04-02
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/0417 , H04B7/0613 , H04B7/0837 , H04J11/00 , H04L5/0007 , H04L25/0204 , H04L25/0224 , H04L27/2647 , H04L27/2657 , H04L27/2662 , H04W72/0453
摘要： A transmission method for transmitting an orthogonal frequency division multiplexing signal. The method includes composing a plurality of carrier groups each including one or more subcarriers and assigning transmission data for a plurality of transmission destination terminals, to the plurality of carrier groups, on a basis of one carrier group for one transmission destination terminal basis. The method further includes selecting, for each of the carrier groups, one of a first frame configuration where the transmission data is transmitted using one modulated signal, and a second frame configuration where the transmission data is transmitted using a plurality of modulated signals and transmitting the assigned transmission data of the plurality of transmission destination terminals at a same time on a time axis.
摘要翻译： 一种发送正交频分复用信号的发送方法。 该方法包括：基于一个发送目的地终端的一个载波组，构成多个载波组，每个载波组包括一个或多个子载波，并为多个发送目的地终端分配发送数据给多个载波组。 该方法还包括为每个载波组选择使用一个调制信号发送发送数据的第一帧配置中的一个，以及使用多个调制信号发送发送数据的第二帧配置，并且发送 在时间轴上同时分配多个发送目的地终端的发送数据。
-
公开(公告)号：US20100205511A1
公开(公告)日：2010-08-12
申请号：US12679740
申请日：2008-09-26
CPC分类号： H03M13/1154 , H03M13/1102 , H03M13/118 , H03M13/23 , H03M13/235 , H03M13/6362 , H04L1/0041
摘要： A low-density parity check convolution code (LDPC-CC) is made, and a signal sequence is sent after subjected to an error-correcting encodement using the low-density parity check convolution code. In this case, a low-density parity check code of a time-variant period (3g) is created by linear operations of first to 3g-th (letter g designates a positive integer) parity check polynomials and input data.
摘要翻译： 进行低密度奇偶校验卷积码（LDPC-CC），并且在使用低密度奇偶校验卷积码进行纠错编码之后发送信号序列。 在这种情况下，通过第一至第3g（字母g表示正整数）奇偶校验多项式和输入数据的线性运算，创建时变周期（3g）的低密度奇偶校验码。
-
39.发明申请公开(公告)号：US20100177845A1
公开(公告)日：2010-07-15
申请号：US12666270
申请日：2008-06-24
IPC分类号： H04L27/00
CPC分类号： H04B7/0697 , H04L1/005 , H04L1/0057 , H04L1/0071 , H04L1/06
摘要： Provided is a multi-antenna transmission device which can improve the reception quality when performing a repeated detection using a software value at the reception device side in a spatial multiplex MIMO system. A transmission device (1600) includes M (M is an integer not smaller than 2) transmission units (1601—1 to 1601_M) which interleave and map each of encoded data of M systems and transmit them. Each of the M transmission units (1601—1 to 1601_M) has: N (N is an integer not smaller than 2) interleavers (504A1 to 504AN (504X1 to 504XN)) which interleave the encoded data obtained from the same transmission data, by using different interleave patterns; and N antennas (510A1 to 510AN (510X1 to 510XN)) which transmit the signals obtained BY the respective interleavers.
摘要翻译： 提供了一种多天线发送装置，其可以在空间复用MIMO系统中使用接收装置侧的软件值进行重复检测时，提高接收质量。 传输设备（1600）包括M（M是不小于2的整数）传输单元（1601-1至1601_M），其传输和映射M个系统的每个编码数据并发送它们。 每个M个传输单元（1601-1至1601_M）具有：N（N是不小于2的整数）交织器（504A1至504AN（504X1至504XN）），其将从相同传输数据获得的编码数据进行交织，由 使用不同的交错模式; 以及N个天线（510A1〜510AN（510X1〜510XN）），其发送由各交织器获得的信号。
-
公开(公告)号：US20100128815A1
公开(公告)日：2010-05-27
申请号：US12694089
申请日：2010-01-26
IPC分类号： H04L27/00
CPC分类号： H04L1/06 , H04B7/0413 , H04B7/0854 , H04L1/0054 , H04L1/006 , H04L1/007 , H04L25/03305 , H04L25/03324 , H04L25/03891 , H04L25/061 , H04L27/3488 , H04L27/38 , H04L2025/03611 , H04N19/39
摘要： A partial bit demodulation section that demodulates partial bits among a plurality of bits that form 1 symbol of each modulated signal using a detection method different from likelihood detection, signal point reduction sections that reduce the number of candidate signal points using demodulated partial bits, and a likelihood detection section obtains received digital signals by performing likelihood detection based on the Euclidian distances between the reduced candidate signal points and a reception point, are provided. By this, only some bits which are unlikely to be erroneous are found by the partial bit demodulation section, and other bits can be found by the likelihood detection section, enabling bit error rate performances to be effectively improved with a comparatively small computational complexity.
摘要翻译： 一种部分比特解调部分，其使用不同于似然检测的检测方法来解调形成每个调制信号的1个符号的多个比特中的部分比特，使用解调的部分比特减少候选信号点的数量的信号点减少部分，以及 提供了通过基于缩小的候选信号点与接收点之间的欧几里德距离进行似然度检测来获得接收到的数字信号的方法。 由此，部分比特解调部分仅发现一些不太可能出错的比特，可以通过似然度检测部分找到其他的比特，从而能够以比较小的计算复杂度有效地提高误码率性能。
-
-
-
-
-
-
-
-
-
搜索结果
326 条记录 (耗时 0.038 秒)
