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61.发明授权公开(公告)号：US08416810B2
公开(公告)日：2013-04-09
申请号：US12160872
申请日：2007-01-18
IPC分类号： H04J4/00
CPC分类号： H04J11/005 , H04L5/0007 , H04L5/005 , H04L25/03866 , H04L27/2602
摘要： Provided is a base station capable of giving a pilot appropriate for both of multicast data and unicast data which are frequency-multiplexed. In a pilot generation unit (105) of the base station, an insertion unit (1051) inserts a pilot (common pilot) common to a plurality of cells to generate an orthogonal pilot sequence (2). In accordance with the insertion process in the insertion unit (1051), an insertion unit (1052) inserts a sequence (common sequence) common to a plurality of cells to a unique scrambling sequence to generate a scrambling sequence. A scrambling unit (1053) performs a scrambling process for multiplying the orthogonal pilot sequence (2) by the scrambling sequence. This scrambling process generates, in a part of pilot sequences different for respective cells, a pilot sequence containing a pilot common to the cells.
摘要翻译： 提供了能够给出适合于频率复用的多播数据和单播数据两者的导频的基站。 在基站的导频生成单元（105）中，插入单元（1051）将多个小区公共的导频（公共导频）插入以生成正交导频序列（2）。 根据插入单元（1051）中的插入处理，插入单元（1052）将多个单元公共的序列（公共序列）插入到唯一的加扰序列以生成加扰序列。 加扰单元（1053）执行用于将正交导频序列（2）乘以加扰序列的加扰处理。 该加扰过程在不同于各个小区的导频序列的一部分中生成包含小区公共的导频的导频序列。
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公开(公告)号：US20130010858A1
公开(公告)日：2013-01-10
申请号：US13635531
申请日：2011-03-18
申请人： Takaaki Kishigami , Daichi Imamura , Isamu Yoshii
发明人： Takaaki Kishigami , Daichi Imamura , Isamu Yoshii
IPC分类号： H04N7/32
CPC分类号： H04N19/114 , H04N19/149 , H04N19/196
摘要： When controlling transmission channel parameters and video encoding parameters so as to be linked to each other in video transmission, the video quality on the receiving side is further improved. As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the predicted value of the PHY transmission rate is larger than a determined reference value and increasing the GOP size when the predicted value of the PHY transmission rate is equal to or less than the determined reference value.
摘要翻译： 当在视频传输中控制传输信道参数和视频编码参数以彼此链接时，接收侧的视频质量进一步提高。 作为控制视频编码单元中的视频编码的视频编码参数的参数控制单元以及与频道编码/调制单元中的纠错编码和调制相关的传输信道参数，以便彼此链接，交叉层速率控制单元 被提供。 当PHY传输速率的预测值大于所确定的参考值时，跨层速率控制单元通过减小GOP大小来根据传播变化执行GOP大小的可变控制，并且当PHY的预测值 传输速率等于或小于所确定的参考值。
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公开(公告)号：US20120320861A1
公开(公告)日：2012-12-20
申请号：US13581687
申请日：2011-02-25
申请人： Ryohei Kimura , Takaaki Kishigami , Isamu Yoshii , Daichi Imamura
发明人： Ryohei Kimura , Takaaki Kishigami , Isamu Yoshii , Daichi Imamura
IPC分类号： H04W72/04
CPC分类号： H04L5/0007 , H04L5/003 , H04L5/0032 , H04L5/0048
摘要： A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal includes an empty resource block detection section, which detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets whereto the predetermined number of resource blocks are allocated in the time direction and the frequency direction; and a data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets whereto resource including empty resource blocks are allocated, in the vicinity of pilot symbols that are disposed within the empty resource blocks. It is possible to effectively utilize the function of all the pilot symbols and improve error rate characteristics.
摘要翻译： 向通信终端发送不同大小的多个数据组的复用信号的无线通信装置包括：空资源块检测部，其检测不使用预定数量的数据组的空资源块; 从在时间方向和频率方向上分配预定数量的资源块的多个数据组中的资源块， 以及重新分配在分配在资源块中的一部分数据的数据再分配部分，所述资源块相对于分配有包括空资源块的资源的数据集，在布置在空资源块内的导频符号附近。 可以有效利用所有导频符号的功能，提高误码率特性。
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公开(公告)号：US20120287855A1
公开(公告)日：2012-11-15
申请号：US13521859
申请日：2011-01-26
申请人： Takaaki Kishigami , Isamu Yoshii
发明人： Takaaki Kishigami , Isamu Yoshii
IPC分类号： H04W4/00
CPC分类号： H04L1/0071 , H04L1/007
摘要： A high error correction capability is kept while reducing a processing delay in application of the ECC in a multi-radio. A wireless communication device for performing data transmission by using a plurality of radio systems RAT1 and RAT2 includes, in a GLL 100 that absorbs a difference in physical layer and MAC layer among RATs, an encoder 301 that encodes transmission data, a multiplexer 302 that distributes encoded data in correspondence with the RAT1 and the RAT2, interleavers 303 and 304 that interleave a plurality of coded data that has been encoded and multiplexed, and a resource controller 305 that sets an interleaving size for each interleaving processing in the interleavers 303 and 304 based on a transmission delay difference between the RAT1 and the RAT2.
摘要翻译： 保持高纠错能力，同时减少在多无线电中应用ECC的处理延迟。 用于通过使用多个无线电系统RAT1和RAT2执行数据传输的无线通信设备包括：在吸收RAT中物理层和MAC层之间的差异的GLL 100中，编码传输数据的编码器301，分配 与RAT1和RAT2对应的编码数据，对交织器303和304进行交织的多个编码数据的交织器303和304以及基于交织器303和304中的每个交织处理设置交织大小的资源控制器305 关于RAT1和RAT2之间的传输延迟差异。
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公开(公告)号：US08160170B2
公开(公告)日：2012-04-17
申请号：US13036924
申请日：2011-02-28
CPC分类号： H04L27/34
摘要： The invention relates to methods for transmitting and receiving a data bit stream in a communication system using a 16-QAM constellation. Further, an apparatus for performing the methods is provided. To provide a modulation and coding scheme using a signal space expansion and 16-QAM which improves the bit-error rate in comparison to QPSK modulated signals and still provides the possibility to implement coders and decoders with low complexity the invention suggests the use a 16-QAM constellation with specially selected mapping rules together with repetition coding (signal space expansion) and interleaving of the data stream to be transmitted.
摘要翻译： 本发明涉及在使用16-QAM星座的通信系统中发送和接收数据比特流的方法。 此外，提供了一种用于执行该方法的装置。 为了提供使用信号空间扩展和16-QAM的调制和编码方案，其与QPSK调制信号相比提高了比特误码率，并且仍然提供实现低复杂度的编码器和解码器的可能性，本发明建议使用16- 具有特别选择的映射规则的QAM星座，以及要发送的数据流的重复编码（信号空间扩展）和交织。
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公开(公告)号：US20120051307A1
公开(公告)日：2012-03-01
申请号：US13266563
申请日：2010-05-07
申请人： Lei Huang , Isamu Yoshii
发明人： Lei Huang , Isamu Yoshii
IPC分类号： H04W72/04
CPC分类号： H04L5/0007 , H03M13/2728 , H03M13/2778 , H03M13/2957 , H04L5/0037
摘要： To improve the frequency diversity effect by preventing the related bits in the encoded data from being biased to the specified carrier in the case of performing the multicarrier operation. A modulated symbol sequence is segmented in a data segmentation section (116), and the segmented modulated symbol blocks are mapped on a plurality of carriers in a segment mapping section (120). The data segmentation section (116) groups each of K parts in the modulated symbol sequence into the same number of N groups, cyclically shifts the N groups for the respective parts of any (K−1) parts with shift amounts which differ among the parts, and substitutes the cyclically-shifted groups of the plurality of parts in the modulated symbol sequence with one another among the parts to segment the groups into a plurality of blocks.
摘要翻译： 在执行多载波操作的情况下，通过防止编码数据中的相关比特偏置到指定载波来提高频率分集效应。 调制符号序列在数据分割部分（116）中分段，并且分段调制符号块被映射在段映射部分（120）中的多个载波上。 数据分割部分（116）将调制符号序列中的K个部分中的每一个分组成相同数量的N个组，对任何（K-1）部分的各个部分的N个组进行循环移位，其中部分 并且将这些部分中的调制符号序列中的多个部分的循环移位组替换为将组分成多个块。
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公开(公告)号：US20120033752A1
公开(公告)日：2012-02-09
申请号：US13265595
申请日：2010-02-17
申请人： Isamu Yoshii , Takaaki Kishigami
发明人： Isamu Yoshii , Takaaki Kishigami
CPC分类号： H04B7/0413 , H03M13/258 , H03M13/27 , H03M13/296 , H03M13/3988 , H03M13/6544 , H04L1/006 , H04L1/0071 , H04L27/2601
摘要： To lessen a disparity in stream mapping of transmission data when modulation data are mapped into a plurality of streams and when the plurality of streams are transmitted and received. In a wireless communication device, a stream mapper (14) that performs mapping into a plurality of streams sequentially maps a modulation symbol sequence output from a modulator (13) into a plurality of streams for each block output from a channel interleaver (12) that performs channel interleaving, such as sub-block interleaving. On this occasion, a stream mapping method is changed in predetermined unit commensurate with a block size; for instance, at each position of a sub-block length where sub-block interleaving is performed or at each position of a half sub-block length.
摘要翻译： 当调制数据映射到多个流中以及当多个流被发送和接收时，减少传输数据的流映射中的视差。 在无线通信设备中，执行到多个流的映射的流映射器（14）将从调制器（13）输出的调制符号序列顺序地映射到从信道交织器（12）输出的每个块的多个流中， 执行信道交织，例如子块交织。 在这种情况下，流映射方法以与块大小相称的预定单位改变; 例如，在执行子块交织的子块长度的每个位置处或在半个子块长度的每个位置处。
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公开(公告)号：US08077789B2
公开(公告)日：2011-12-13
申请号：US11911155
申请日：2005-04-28
IPC分类号： H04L5/12
CPC分类号： H04L27/18 , H04L1/0003 , H04L1/0013 , H04L1/0071 , H04L1/08 , H04L27/34 , Y02D50/10
摘要： A method and apparatus is disclosed, for digital data transmission using higher order modulation schemes, wherein a plurality of bits is mapped to bit positions of a symbol and the transmission has different error probabilities for at least two out of the bit positions. Bits are selected from a data stream of original bits for repetition and repeated. Repeated and unrepeated bits are mapped to modulation symbols, wherein the mapping of bits to bit positions depends on the error probabilities of the bit positions and on the selection result.
摘要翻译： 公开了一种用于使用更高阶调制方案的数字数据传输的方法和装置，其中多个比特映射到符号的比特位置，并且该传输对于位位置中的至少两个具有不同的误差概率。 从用于重复和重复的原始比特的数据流中选择比特。 重复和未中继比特被映射到调制符号，其中比特到比特位置的映射取决于比特位置的错误概率和选择结果。
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公开(公告)号：US20110255461A1
公开(公告)日：2011-10-20
申请号：US13141566
申请日：2009-12-22
申请人： Lei Huang , Isamu Yoshii , Koh Wei Chien
发明人： Lei Huang , Isamu Yoshii , Koh Wei Chien
CPC分类号： H04W72/1273 , H04L5/0007 , H04L5/0053 , H04L27/2602 , Y02D70/1262 , Y02D70/146
摘要： Disclosed are transmission apparatus and a method for sending control information in which the processing time and power consumption at the reception side are reduced by improving the efficiency of reception processing at the reception side. At a base station (100), a information generating unit (103) generates control information and an OFDM communication unit (104) transmits a frame including the control information. The control information (300) has a unicast region (320) and broadcast/multicast regions (310), and scheduling information units (330) comprising a single MS-ID, a plurality of information elements (IE) that are transmitted to each mobile station (200) corresponding to this MS-ID, and an IE number indicator, which is the number information of this plurality of IEs, are included in a group of scheduling information units arranged in the unicast region (320).
摘要翻译： 公开了发送装置和发送控制信息的方法，其中通过提高接收侧的接收处理的效率来减少接收侧的处理时间和功耗。 在基站（100），信息生成单元（103）生成控制信息，OFDM通信单元（104）发送包括控制信息的帧。 控制信息（300）具有单播区域（320）和广播/多播区域（310），以及包括单个MS-ID，多个信息元素（IE）的调度信息单元（330） 对应于该MS-ID的站（200）和作为该多个IE的号码信息的IE号码指示符被包括在布置在单播区域（320）中的调度信息单元组中。
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70.发明授权Method for using a symbol mapper using a symbol mapping scheme to generate modulation symbols according to a different symbol mapping scheme and a method for generating a symbol mapping scheme 有权使用符号映射方法使用符号映射方法以根据不同符号映射方案生成调制符号的方法和用于生成符号映射方案的方法公开(公告)号：US07961814B2
公开(公告)日：2011-06-14
申请号：US11993967
申请日：2005-06-29
IPC分类号： H04L27/36
CPC分类号： H04L27/34
摘要： The invention relates to method and apparatus for generating modulation symbols according to a second symbol mapping scheme by a symbol mapping unit being adapted to generate symbols according to a first symbol mapping scheme, wherein the first and second symbol mapping schemes define different mappings of data words of a stream to modulation symbols of a modulation scheme according to the respective symbol mapping scheme. Further, the invention relates to a method and apparatus for generating a mapping of data words to modulation symbols of a square 16 QAM constellation, the modulation symbols being representable by an inphase component and quadrature component. One aspect of the invention is the introduction of a bit sequence transformer unit transforming the data words to be mapped to modulation symbols prior to mapping thereby changing the Hamming distance properties of the mapping. Another aspect of the invention is the generation of a new AICO (Antipodal Inverted COnstellation) mapping scheme.
摘要翻译： 本发明涉及一种用于根据第二符号映射方案通过符号映射单元产生适应于根据第一符号映射方案生成符号的调制符号的方法和装置，其中第一和第二符号映射方案定义数据字的不同映射 根据相应的符号映射方案的调制方案的调制符号的流。 此外，本发明涉及一种用于产生数据字到方形16QAM星座的调制符号的映射的方法和装置，所述调制符号可由同相分量和正交分量表示。 本发明的一个方面是引入一个比特序列变换器单元，在映射之前将要映射到数据字的映射到调制符号变换，从而改变映射的汉明距离属性。 本发明的另一个方面是生成新的AICO（Antipodal Inverted COnstellation）映射方案。
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