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91. 发明授权

US07577214B2 OFDM signal receiver and receiving method 失效
标题翻译： OFDM信号接收机和接收方式
公开(公告)号：US07577214B2
公开(公告)日：2009-08-18
申请号：US11280335
申请日：2005-11-17
申请人： Yoshinori Abe
发明人： Yoshinori Abe
IPC分类号： H04K1/10
CPC分类号： H04L25/0222 , H04L5/0048 , H04L25/0228 , H04L27/2657 , H04L27/2675
摘要： A receiver having a frequency-deviation detector which includes: a storage for locating and storing the frequency-domain symbol-signal in a two-dimensional data area on a two-dimensional space corresponding to a carrier frequency and a symbol time; a calculator for calculating the transfer characteristic of a pilot signal; a Fourier transformer for performing two-dimensional Fourier transform on the calculated characteristic to locate the data group after the transform in a two-dimensional Fourier transform data area corresponding to a transmission delay time and path fluctuation frequency; and a calculation portion for calculating the frequency deviation based on the center-of-gravity value.
摘要翻译：一种具有频率偏差检测器的接收机，包括：存储器，用于在对应于载波频率和符号时间的二维空间上的二维数据区域中定位和存储频域符号信号; 用于计算导频信号的传送特性的计算器; 傅里叶变换器，用于对计算出的特征进行二维傅里叶变换，以在对应于传输延迟时间和路径波动频率的二维傅里叶变换数据区域中的变换之后定位数据组; 以及用于基于重心值计算频率偏差的计算部分。

92. 发明申请

US20090154547A1 SCATTERED PILOT CORRELATION IN DVB-H SYSTEMS 有权
标题翻译： DVB-H系统中的散射引导相关
公开(公告)号：US20090154547A1
公开(公告)日：2009-06-18
申请号：US11957716
申请日：2007-12-17
申请人： Nabil YOUSEF
发明人： Nabil YOUSEF
IPC分类号： H04L27/28 , H04N7/12 , H04N7/24
CPC分类号： H04N21/2383 , H04L5/0007 , H04L5/0048 , H04L25/0216 , H04L25/022 , H04L25/0222 , H04L25/0228 , H04N21/4263 , H04N21/4382
摘要： A method for correlating scattered pilot locations in a sequence of OFDM symbols in a multi-carrier transmission system, and includes mapping pilot locations comprising pilot symbols having predetermined known values, wherein the pilot symbols are positioned among data subcarriers in time and frequency dimensions consisting of received pilot symbols and having a predetermined position pattern in the time and frequency dimensions, wherein the predetermined position pattern comprises a finite number of sub-position patterns each corresponding to positions of the pilot symbols; estimating a Doppler spread in a frequency spectrum between the transmitter and the receiver in the multi-carrier transmission system; estimating a channel length of a set of channel paths received at the receiver; and the receiver automatically selecting one of a plurality of predetermined methods of correlating the scattered pilot locations in the sequence of OFDM symbols based only on the estimating processes.
摘要翻译：一种用于在多载波传输系统中的OFDM符号序列中的分散导频位置相关的方法，并且包括映射导频位置，包括具有预定已知值的导频符号，其中导频符号位于数据子载波中，时间和频率维度由接收的导频符号并且在时间和频率维度上具有预定的位置模式，其中预定位置模式包括每个对应于导频符号的位置的有限数量的子位置模式; 估计多载波传输系统中的发射机和接收机之间的频谱中的多普勒扩展; 估计在接收机处接收的一组信道路径的信道长度; 并且接收机根据估计过程自动选择使OFDM符号序列中的分散导频位置相关的多个预定方法之一。

93. 发明授权

US07548752B2 Feedback to support restrictive reuse 有权
标题翻译：支持限制性重用的反馈
公开(公告)号：US07548752B2
公开(公告)日：2009-06-16
申请号：US11020707
申请日：2004-12-22
申请人： Hemanth Sampath , Tingfang Ji
发明人： Hemanth Sampath , Tingfang Ji
IPC分类号： H04Q7/20
CPC分类号： H04W72/085 , H04L5/0048 , H04L5/0053 , H04L25/0204 , H04L25/0222 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： The scheduler in a base station needs CQI information from a terminal for all reuse sets every 5 ms. to decide on which re-use set to schedule a given terminal. For MIMO users, the problem is that the CQI cannot be reconstructed for all re-use sets, using the current design. Solution: (1) For Multiple Code Word MIMO users, a MIMO VCQI connection layer message enables the base station to reconstruct the MIMO-CQI for all reuse sets on a packet-by-packet basis. This will enable dynamic scheduling (RESTRICTIVE REUSE) gains. (2) For Single Code Word users, dynamic RESTRICTIVE REUSE can be obtained by changing the CQI reporting format, and also sending a MIMO-VCQI connection layer message. (3) For Single Code Word design, quasi-static scheduling gains can be obtained by sending a MIMO-VCQI connection layer message.
摘要翻译：基站中的调度器每5ms需要来自终端的CQI信息用于所有重用集合。决定哪个重用设置来安排一个给定的终端。对于MIMO用户，问题在于，使用当前设计，不能为所有重用集合重建CQI。解决方案：（1）对于多码字MIMO用户，MIMO VCQI连接层消息使得基站能够逐个分组地重建所有重用集合的MIMO-CQI。这将使动态调度（限制性重用）获益。（2）对于单码字用户，可以通过改变CQI报告格式，并发送MIMO-VCQI连接层消息来获得动态限制重用。（3）对于单码字设计，可以通过发送MIMO-VCQI连接层消息来获得准静态调度增益。

94. 发明授权

US07548595B2 Apparatus and method for fading frequency estimation 有权
标题翻译：用于衰落频率估计的装置和方法
公开(公告)号：US07548595B2
公开(公告)日：2009-06-16
申请号：US10988411
申请日：2004-11-12
申请人： Tsuyoshi Shimomura , Dai Kimura , Tetsuhiro Futami , Morihiko Minowa
发明人： Tsuyoshi Shimomura , Dai Kimura , Tetsuhiro Futami , Morihiko Minowa
IPC分类号： H03K9/00
CPC分类号： H04L25/0202 , H04B2201/70701 , H04L25/0222
摘要： The invention relates to an apparatus and a method for estimating a fading frequency of incoming received waves in a receiving station of a radio communication system or radio transmission system. An object of the invention is to estimate a fading frequency efficiently and accurately without substantially complexing the configuration of the system. To this end, the invention provides an apparatus for estimating a fading frequency from a pilot signal in a reception signal, which includes a calculation unit for calculating a magnitude of a complex product of two symbols that are received at different instants, and an estimation unit for estimating a fading frequency according to the calculated magnitude of the complex product.
摘要翻译：本发明涉及一种用于估计无线电通信系统或无线电传输系统的接收站中的输入接收波的衰落频率的装置和方法。本发明的目的是有效且准确地估计衰落频率，而不会使系统的配置基本上复杂化。为此，本发明提供了一种用于从接收信号中的导频信号估计衰落频率的装置，其包括：用于计算在不同时刻接收的两个符号的复乘的幅度的计算单元和估计单元用于根据所计算的复数乘积的大小来估计衰落频率。

95. 发明申请

US20090088174A1 WIRELESS COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING WIRELESS COMMUNICATION APPARATUS 审中-公开
标题翻译：无线通信装置和无线通信装置的控制方法
公开(公告)号：US20090088174A1
公开(公告)日：2009-04-02
申请号：US12195547
申请日：2008-08-21
申请人： Shohei KIKUCHI , Yasuhiko Tanabe
发明人： Shohei KIKUCHI , Yasuhiko Tanabe
IPC分类号： H04Q7/20
CPC分类号： H04B7/0619 , H04L25/0204 , H04L25/0212 , H04L25/0222 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W72/0413 , H04W72/085
摘要： A wireless communication apparatus performs simultaneous communication with a plurality of communication terminals by using the same frequency band. The apparatus including: a reception unit that receives feedback information from each of the communication terminals; an acquisition unit that acquires a correlation value between the latest feedback information and the feedback information previously stored in a storage unit for each of the communication terminals; a measurement unit that measures a delay time relating to the feedback information; a generation unit that generates a reliability parameter representing degree of error that is allowed in the feedback information based on the correlation value and the delay time; and a selection unit that selects two or more of the communication terminals from among the plurality of the communication terminals based on the reliability parameter.
摘要翻译：无线通信装置通过使用相同的频带与多个通信终端进行同时通信。该装置包括：接收单元，其从每个通信终端接收反馈信息; 获取单元，其获取所述最新反馈信息和预先存储在每个通信终端的存储单元中的反馈信息之间的相关值; 测量单元，其测量与所述反馈信息相关的延迟时间; 生成单元，其基于所述相关值和所述延迟时间生成表示所述反馈信息中允许的误差的可靠性参数; 以及选择单元，其基于所述可靠性参数从所述多个通信终端中选择所述通信终端中的两个以上。

96. 发明申请

US20090028102A1 RESOURCE ASSIGNMENT METHOD FOR COMMUNICATION SYSTEM ADAPTED FOR CHANGE OF CHANNEL 有权
标题翻译：适用于通道更改的通信系统的资源分配方法
公开(公告)号：US20090028102A1
公开(公告)日：2009-01-29
申请号：US11908465
申请日：2006-03-31
申请人： Yoshikazu Kakura
发明人： Yoshikazu Kakura
IPC分类号： H04W40/02
CPC分类号： H04L25/0222 , H04B17/382 , H04L5/0007 , H04L5/0039 , H04L5/0044 , H04L5/0048 , H04L5/006 , H04L5/0085 , H04L25/0226 , H04L25/0232 , H04W72/06
摘要： A resource assignment method for a communication system provides a method to realize an estimate of channel with high accuracy for terminals which change channels rapidly. A resource assignment unit (102), supplied with channel information ISCL1 to NSCIN, determines assignment of resources to a first to a Nth terminals and outputs a resource assignment information SRA. A multiplex signal generating unit (103), supplied with the resource assignment information SRA, outputs a transmission signal STX. A resource selector (104), supplied with the channel information 1SCI1 to NSCIN and the relative position information SRP, determines the assignment of resources to the first to Nth terminals and outputs the resource assignment information SRA. A resource position generating unit (105), supplied with the resource assignment information SRA, calculates a relative position of an empty resource with respect to a multiplex position of a pilot signal and outputs the relative position information SRP.
摘要翻译：一种用于通信系统的资源分配方法提供了一种快速改变信道的终端实现高精度信道估计的方法。提供有信道信息ISCL1至NSCIN的资源分配单元（102）确定向第一至第N终端的资源分配，并输出资源分配信息SRA。提供有资源分配信息SRA的复用信号生成单元（103）输出发送信号STX。提供有信道信息1SCI1至NSCIN的资源选择器（104）和相对位置信息SRP确定向第一至第N终端的资源分配，并输出资源分配信息SRA。提供有资源分配信息SRA的资源位置生成单元（105）计算空资源相对于导频信号的复用位置的相对位置，并输出相对位置信息SRP。

97. 发明申请

US20080192853A1 METHOD AND SYSTEM FOR RATE REDUCTION PRE-CODING MATRICES 有权
标题翻译：用于降低速率预编码矩阵的方法和系统
公开(公告)号：US20080192853A1
公开(公告)日：2008-08-14
申请号：US11847683
申请日：2007-08-30
申请人： Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
发明人： Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
IPC分类号： H04L5/12
CPC分类号： H04L25/03343 , H04L25/0204 , H04L25/0222 , H04L25/0248 , H04L2025/03426 , H04L2025/03808
摘要： Aspects of a method and system for a delta quantizer for rate reduction pre-coding matrices may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook and generating a pre-coding matrix based on at least the channel state information. The channel state information may be a matrix V and one or more associated singular values. The matrix V may be generated using Singular Value Decomposition (SVD) or Geometric Mean Decomposition (GMD). One or more columns of the matrix V may be selected based on the one or more associated singular values and may be combined to enable the generation of the pre-coding matrix. The codebook may comprise one or more unitary matrices. An index of an element of the codebook, onto which the change in channel state information is quantized, may be transmitted from a receiver to a transmitter.
摘要翻译：用于速率降低预编码矩阵的delta量化器的方法和系统的方面可以包括将MIMO预编码系统中的信道状态信息的变化量化到码本上，并且至少基于信道状态生成预编码矩阵信息。信道状态信息可以是矩阵V和一个或多个相关联的奇异值。矩阵V可以使用奇异值分解（SVD）或几何平均分解（GMD）来生成。可以基于一个或多个相关联的奇异值来选择矩阵V的一个或多个列，并且可以组合以使得能够生成预编码矩阵。码本可以包括一个或多个酉矩阵。信道状态信息的变化被量化的码本的元素的索引可以从接收器发送到发送器。

98. 发明申请

US20080165839A1 Method and System for Dynamic Adaptation and Communicating Differences in Frequency - Time Dependent Systems 有权
标题翻译：频率 - 时间依赖系统动态适应与通信差异的方法与系统
公开(公告)号：US20080165839A1
公开(公告)日：2008-07-10
申请号：US11848418
申请日：2007-08-31
申请人： Uri Landau , Mark Kent , Vinko Erceg
发明人： Uri Landau , Mark Kent , Vinko Erceg
IPC分类号： H04L1/02
CPC分类号： H04B7/0417 , H04B7/0632 , H04L25/0204 , H04L25/0222 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Aspects of a method and system for dynamic adaptation and communicating differences in frequency-time dependent systems may include generating a time difference weighting factor and a frequency difference weighting factor, based on at least channel estimates. A time-frequency difference may be computed by forming a weighted sum comprising a time difference and a frequency difference, where forming the weighted sum uses at least the time difference weighting factor and the frequency weighting factor. A channel quality indicator (CQI) feedback message may be generated, comprising the time-frequency difference. The time difference weighting factor and/or the frequency difference weighting factor may be generated adaptively at a base station or a mobile terminal. The time difference and/or the frequency difference may be generated from estimated Signal-to-Noise-Ratios (SNRs) associated with the channel estimates. The SNRs may be based on at least the output of an MMSE receiver.
摘要翻译：基于频率时间的系统的用于动态适应和通信差异的方法和系统的方面可以包括至少基于信道估计来产生时差加权因子和频差加权因子。可以通过形成包括时差和频率差的加权和来计算时间差，其中形成加权和至少使用时差加权因子和频率加权因子。可以生成包括时间 - 频率差的信道质量指示符（CQI）反馈消息。可以在基站或移动终端上自适应地生成时差加权因子和/或频差加权因子。时间差和/或频率差可以从与信道估计相关联的估计的信噪比（SNR）产生。 SNR可以至少基于MMSE接收机的输出。

99. 发明申请

US20080159458A1 Apparatus And Method For Adaptive Wireless Channel Estimation 有权
标题翻译：自适应无线信道估计的装置和方法
公开(公告)号：US20080159458A1
公开(公告)日：2008-07-03
申请号：US11684585
申请日：2007-03-09
申请人： Yong-Hua Cheng , Yi-Hung Lu , Chia-Ling Liu
发明人： Yong-Hua Cheng , Yi-Hung Lu , Chia-Ling Liu
IPC分类号： H04L7/00
CPC分类号： H04L25/0232 , H04L25/0222 , H04L25/025 , H04L25/03019 , H04L27/2647 , H04L2025/03414
摘要： Disclosed is an apparatus and method for adaptive wireless channel estimation. Once a packet is received, this invention analyzes channel interference index for a moving vehicle, and computes a first recursive parameter, a second recursive parameter and an interpolation number. Based on the first recursive parameter and the interpolation number, partial channel information is calculated for further channel estimation by using an interpolation. The parameter of an equalizer is also immediately updated. Cooperating with a decision feedback scheme and based on the second recursive parameter, channel tracking is performed. In order to achieve the adaptive channel estimation for wireless access on the time-variant vehicle environment, the parameter for the algorithm for performing the channel estimation is adjusted.
摘要翻译：公开了一种用于自适应无线信道估计的装置和方法。一旦接收到分组，本发明分析了移动车辆的信道干扰指数，并且计算第一递归参数，第二递归参数和插值数。基于第一递归参数和插值数，通过使用插值计算出用于进一步信道估计的部分信道信息。均衡器的参数也会立即更新。与决策反馈方案协同工作，并根据第二递归参数进行信道跟踪。为了实现对时变车辆环境中的无线接入的自适应信道估计，调整用于执行信道估计的算法的参数。

100. 发明申请

US20080095185A1 METHOD AND APPARATUS FOR SENDING A CHANNEL QUALITY INDICATION VIA A SHARED CHANNEL 有权
标题翻译：用于通过共享信道发送信道质量指示的方法和装置
公开(公告)号：US20080095185A1
公开(公告)日：2008-04-24
申请号：US11877553
申请日：2007-10-23
申请人： Rocco DiGirolamo , Christopher Cave , Paul Marinier , Sudheer Grandhi , Vincent Roy
发明人： Rocco DiGirolamo , Christopher Cave , Paul Marinier , Sudheer Grandhi , Vincent Roy
IPC分类号： H04J15/00
CPC分类号： H04L5/0057 , H04B17/24 , H04B17/309 , H04L1/0026 , H04L1/1829 , H04L5/0055 , H04L25/0212 , H04L25/0222 , H04L69/323 , H04L2025/03802 , H04W24/08 , H04W24/10 , H04W72/0406 , H04W72/042 , H04W72/085 , H04W74/0866
摘要： A method and apparatus for sending a channel quality indication (CQI) via a shared channel while a wireless transmit/receive unit (WTRU) is in a Cell_FACH state without having a dedicated channel allocated for the WTRU are disclosed. A WTRU performs a measurement of at least one parameter and generates a CQI based on the measurement. The WTRU then transmits the CQI via a random access channel (RACH). The CQI may be transmitted using an RACH preamble. A plurality of signature sequences may be divided into a plurality of groups. The WTRU may select one group based on the CQI and randomly select a signature sequence among signature sequences in the selected group for transmitting the RACH preamble. The CQI may be appended to the RACH preamble. The CQI may be transmitted via a control part or a data part of the RACH message.
摘要翻译：公开了一种在无线发射/接收单元（WTRU）处于Cell_FACH状态而不具有分配给WTRU的专用信道的情况下经由共享信道发送信道质量指示（CQI）的方法和装置。 WTRU执行至少一个参数的测量，并且基于该测量生成CQI。然后，WTRU经由随机接入信道（RACH）发送CQI。可以使用RACH前导码来发送CQI。多个签名序列可以被分成多个组。 WTRU可以基于CQI选择一个组，并且在所选择的组中的签名序列之间随机选择签名序列以发送RACH前导码。 CQI可以附加到RACH前导码。可以经由RACH消息的控制部分或数据部分来发送CQI。

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