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1. 发明申请

WO2006017850A2 METHOD AND APPARATUS FOR REDUCING ANTENNA CORRELATION 审中-公开
标题翻译：降低天线相关性的方法和装置
公开(公告)号：WO2006017850A2
公开(公告)日：2006-02-16
申请号：PCT/US2005/028450
申请日：2005-08-11
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , OZLUTURK, Fatih , PIETRASKI, Philip, J.
发明人： OZLUTURK, Fatih , PIETRASKI, Philip, J.
IPC分类号： H04B1/02 , H04B1/04 , H04B7/02
CPC分类号： H04B7/10 , H01Q21/29 , H01Q25/00 , H04B7/04 , H04B7/0408 , H04B7/0617 , H04B7/0626 , H04B7/066 , H04B7/0691 , H04B7/0697
摘要： The present invention is related to a method and apparatus for reducing antenna correlation between multiple antennas. A transmitter generates at least two beams with a plurality of antennas. The generated beams are spatially separated to point away each other. Therefore, the transmitted signals travel through different channel conditions and arrive at a receiver mutually uncorrelated. The beams may be generated by antennas having different antenna pattern, or by an array antenna. The beams may be polarized differently. The schemes may be implemented on a subcarrier basis in an orthogonal frequency division multiplexing (OFDM) system. Trellis coded mapping may be utilized for adjacent symbols to be mapped to antennas with low correlation.
摘要翻译：本发明涉及减少多个天线之间的天线相关性的方法和装置。发射机产生具有多个天线的至少两个波束。所生成的光束在空间上分离以指向彼此。因此，所发送的信号通过不同的信道条件传播并且到达接收机相互不相关。波束可以由具有不同天线图案的天线或阵列天线产生。梁可以以不同的方式极化。这些方案可以在正交频分复用（OFDM）系统中的子载波基础上实现。网格编码映射可以用于相邻符号以被映射到具有低相关性的天线。

2. 发明申请

WO2006020434A2 METHOD AND APPARATUS FOR SUBCARRIER AND ANTENNA SELECTION IN MIMO-OFDM SYSTEM 审中-公开
标题翻译： MIMO-OFDM系统中SUBCARRIER和天线选择的方法与装置
公开(公告)号：WO2006020434A2
公开(公告)日：2006-02-23
申请号：PCT/US2005/027061
申请日：2005-07-29
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , OZLUTURK, Fatih , PIETRASKI, Philip, J. , BULTAN, Aykut
发明人： OZLUTURK, Fatih , PIETRASKI, Philip, J. , BULTAN, Aykut
IPC分类号： H04L1/02
CPC分类号： H04W52/262 , H04B7/046 , H04L1/0003 , H04L1/0009 , H04L5/0023 , H04L5/0025 , H04L5/0046 , H04L5/006 , H04L25/0206 , H04W52/42
摘要： A method and apparatus for radio resources control in a multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system are disclosed. Channel metric is calculated for each of a plurality of transmit antennas. Sub-carriers are allocated to each transmit antenna in accordance with the channel metric of each transmit antenna. Signals are transmitted using the allocated sub-carriers at each antenna. Adaptive modulation and coding and transmit power control of each sub-carrier may be further implemented in accordance with the channel metric. Power control may be implemented per antenna basis or per sub-carrier basis. In performing power control, a subset of transmit antennas may be selected and waterpouring may be applied only to the selected antennas. Waterpouring may be based on SNR instead of channel response.
摘要翻译：公开了一种用于多输入多输出（MIMO）正交频分复用（OFDM）通信系统中的无线资源控制的方法和装置。为多个发射天线中的每一个计算信道度量。根据每个发射天线的信道度量，将子载波分配给每个发射天线。在每个天线处使用分配的子载波来发送信号。可以根据信道度量进一步实现每个子载波的自适应调制和编码和发射功率控制。功率控制可以基于每个天线或每个子载波来实现。在执行功率控制时，可以选择发射天线的子集，并且可以仅对所选择的天线进行浇水。灌水可以基于SNR而不是通道响应。

3. 发明申请

WO2008151061A1 CHANNEL CODING AND RATE MATCHING FOR LTE CONTROL CHANNELS 审中-公开
标题翻译： LTE控制信道的信道编码和速率匹配
公开(公告)号：WO2008151061A1
公开(公告)日：2008-12-11
申请号：PCT/US2008/065388
申请日：2008-05-30
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , SHIN, Sung-Hyuk , GRIECO, Donald, M. , SHAH, Nirav, B. , PIETRASKI, Philip, J. , OLESEN, Robert, L.
发明人： SHIN, Sung-Hyuk , GRIECO, Donald, M. , SHAH, Nirav, B. , PIETRASKI, Philip, J. , OLESEN, Robert, L.
IPC分类号： H04L1/00
CPC分类号： H04L1/0071 , H04L1/0043 , H04L1/0059 , H04L1/0067
摘要： A method and apparatus for channel coding and rate matching of the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH) is disclosed that uses convolutional encoding to code the control channels. Rate matching is performed using a circular buffer based rate matching algorithm. A rate matching module may contain a single interleaver or may alternatively comprise a plurality of sub-block interleavers. Interleaved coded bits may be stored in the circular buffer in an interlaced format, or output streams from separate sub-block interleavers may be stored contiguously. When a plurality of sub-block interleavers are used, different interleaving patterns may be used. Rate matching may use bit puncturing or repetition to match the rate of the available physical channel resource. Rate matched output bits may be interleaved using a channel interleaver.
摘要翻译：公开了用于物理上行链路控制信道（PUCCH）和物理下行链路控制信道（PDCCH）的信道编码和速率匹配的方法和装置，其使用卷积编码来对控制信道进行编码。使用基于循环缓冲器的速率匹配算法来执行速率匹配。速率匹配模块可以包含单个交织器，或者可以包括多个子块交织器。交错编码比特可以以隔行格式存储在循环缓冲器中，或者来自分离的子块交织器的输出流可以被连续地存储。当使用多个子块交织器时，可以使用不同的交织模式。速率匹配可以使用位删截或重复来匹配可用物理信道资源的速率。速率匹配输出位可以使用信道交织器进行交织。

4. 发明申请

WO2006101997A2 CHANNEL ESTIMATION ENHANCED LMS EQUALIZER 审中-公开
标题翻译：信道估计增强LMS均衡器
公开(公告)号：WO2006101997A2
公开(公告)日：2006-09-28
申请号：PCT/US2006/009556
申请日：2006-03-16
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J.
发明人： PIETRASKI, Philip, J.
IPC分类号： H03H7/40 , H03D1/04
CPC分类号： H03H21/0043 , H03H2021/0056 , H04L25/0226 , H04L25/03019 , H04L2025/03496 , H04L2025/03611
摘要： The present invention is related to an enhanced equalizer using channel estimation. A scaled version of a channel estimate is used as an expected average behavior of the product of a transmitted signal and a received signal to implement Griffith algorithm. The present invention also uses advance or prediction of a channel estimate to overcome the lag problem inherent in a least means square (LMS) algorithm in a time varying channel. Therefore, the present invention enables the use of a small step size while attaining the same tracking capability with a large step size. A channel estimate at some time in the future is used for updating equalizer filter tap coefficients. This may be performed with a prediction filter. Alternatively, a delay may be introduced in the input data to the filter tap coefficient generator, which makes a channel estimate look like a prediction to the filter tap coefficient generator.
摘要翻译：本发明涉及使用信道估计的增强均衡器。信道估计的缩放版本被用作发射信号和接收信号的乘积的预期平均行为以实现Griffith算法。本发明还使用信道估计的提前或预测来克服时变信道中最小均方（LMS）算法中固有的滞后问题。因此，本发明能够在以大的步长获得相同的跟踪能力的同时使用小的步长。将来某个时间的信道估计用于更新均衡器滤波器抽头系数。这可以用预测滤波器来执行。或者，可以将输入数据中的延迟引入到滤波器抽头系数发生器，这使得信道估计看起来像滤波器抽头系数发生器的预测。

5. 发明申请

WO2006062767A2 LOW COMPLEXITY ADAPTIVE CHANNEL ESTIMATION 审中-公开
标题翻译：低复杂自适应信道估计
公开(公告)号：WO2006062767A2
公开(公告)日：2006-06-15
申请号：PCT/US2005/043121
申请日：2005-11-30
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J.
发明人： PIETRASKI, Philip, J.
IPC分类号： G06F3/033
CPC分类号： H04L25/0228 , H04L25/0212
摘要： A channel estimation apparatus and method is provided for a wireless communication signal received from at least one relatively mobile wireless transmit/receive unit (WTRU). Predetermined filter coefficients having unique index values are stored in a memory device. An index generator matches estimation values of the mobile unit speed and SNR to a particular filter coefficient, and selects a corresponding index value, whereby the memory performs a look up function according to the index value and outputs a filter coefficient vector. The channel estimation of the wireless communication signal is taken from the output of the filter. Alternatively, a set of parallel filters which run continuously are used to produce several channel estimates, from which the final estimate is selected based on the associated lowest mean square error or highest SNR.
摘要翻译：提供了一种用于从至少一个相对移动的无线发射/接收单元（WTRU）接收的无线通信信号的信道估计装置和方法。具有唯一索引值的预定滤波器系数被存储在存储器件中。索引发生器将移动单元速度和SNR的估计值与特定的滤波器系数相匹配，并且选择相应的索引值，由此存储器根据索引值执行查找功能并输出滤波器系数向量。无线通信信号的信道估计取自滤波器的输出。或者，使用连续运行的一组并行滤波器来产生若干信道估计，基于相关联的最小均方误差或最高SNR，选择最终估计。

6. 发明申请

WO2006058219A3 EMBEDDING LOCATION INFORMATION IN CONTENT OBJECTS 审中-公开
公开(公告)号：WO2006058219A3
公开(公告)日：2006-06-01
申请号：PCT/US2005/042755
申请日：2005-11-23
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J.
发明人： PIETRASKI, Philip, J.
IPC分类号： G06F17/30
摘要： A method for embedding location information in a content object created on a content creation device begins by obtaining location information relating to the current location of the content creation device. The content object is created and the location information is embedded into the content object. A method for displaying location information in connection with a content object begins by selecting a content object to view. The embedded location information is extracted from the selected content object. The location information is interpreted to determine user-friendly location information. The user-friendly location information is displayed with the selected content object.

7. 发明申请

WO2008157638A2 MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) MODE OPTIMIZATION FOR LOW DATA RATES SERVICES 审中-公开
标题翻译：用于低数据速率服务的多输入多输出（MIMO）模式优化
公开(公告)号：WO2008157638A2
公开(公告)日：2008-12-24
申请号：PCT/US2008/067399
申请日：2008-06-18
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PELLETIER, Benoit , CAVE, Christopher, R. , MARINIER, Paul , ZEIRA, Eldad, M. , PIETRASKI, Philip, J.
发明人： PELLETIER, Benoit , CAVE, Christopher, R. , MARINIER, Paul , ZEIRA, Eldad, M. , PIETRASKI, Philip, J.
IPC分类号： H04L25/03
CPC分类号： H04L25/03343 , H04L2025/03426 , H04W28/06 , H04W48/08 , H04W52/0216 , Y02D70/1244 , Y02D70/1246 , Y02D70/142 , Y02D70/144 , Y02D70/23
摘要： A method and an apparatus are provided for efficient transmission of low-data-rate packet services in a multiple-input multiple-output (MIMO) mode of operations in the presence of high-data-rate packet services. Precoding weight information (PWI) is signaled implicitly to a wireless transmit receive unit (WTRU). A precoding weight vector is signaled in a high speed shared control channel less (HS-SCCH-less) transmission using a new HS-SCCH type P. This explicit PWI signaling approach transmits the PWI with minimum power overhead. The data carried in the HS-SCCH type P is encoded to minimize the required transmitted power. A channel type HS-SCCH type 2M is also described.
摘要翻译：提供了一种用于在存在高数据速率分组业务的情况下以多输入多输出（MIMO）操作模式有效传输低数据速率分组业务的方法和装置。预编码权重信息（PWI）被隐式地发送到无线发射接收单元（WTRU）。使用新的HS-SCCH类型P在低速共享控制信道（HS-SCCH-less）传输中用信号通知预编码权重向量。该显式PWI信令方法以最小功率开销传输PWI。 HS-SCCH类型P中承载的数据被编码以最小化所需的发射功率。还描述了类型为2M的信道类型HS-SCCH。

8. 发明申请

WO2008042255A2 METHOD AND APPARATUS FOR ENCODING CHANNEL QUALITY INDICATOR AND PRECODING CONTROL INFORMATION BITS 审中-公开
标题翻译：编码信道质量指示器和预编程控制信息位的方法和设备
公开(公告)号：WO2008042255A2
公开(公告)日：2008-04-10
申请号：PCT/US2007/020924
申请日：2007-09-28
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , ZEIRA, Eldad , REZNIK, Alexander , YANG, Rui , PIETRASKI, Philip, J. , YANG, Yongwen
发明人： ZEIRA, Eldad , REZNIK, Alexander , YANG, Rui , PIETRASKI, Philip, J. , YANG, Yongwen
IPC分类号： H04L25/03
CPC分类号： H04B7/0456 , G06F11/006 , H04B7/0417 , H04B7/0632 , H04B7/0634 , H04B7/0636 , H04B7/0639 , H04B7/0652 , H04L1/0026 , H04L1/0057 , H04L1/007 , H04L1/0073 , H04L1/06 , H04L1/1671 , H04L65/601 , H04L69/40 , H04L2025/03802 , H04L2209/34
摘要： A method and apparatus for encoding channel quality indicator (CQI) and precoding control information (PCI) bits are disclosed. Each of input bits, such as CQI bits and/or PCI bits, has a particular significance. The input bits are encoded with a linear block coding. The input bits are provided with an unequal error protection based on the significance of each input bit. The input bits may be duplicated based on the significance of each input bit and equal protection coding may be performed. A generator matrix for the encoding may be generated by elementary operation of conventional basis sequences to provide more protection to a most significant bit (MSB).
摘要翻译：公开了一种用于编码信道质量指示符（CQI）和预编码控制信息（PCI）比特的方法和装置。输入比特中的每一个比如CQI比特和/或PCI比特具有特殊意义。输入比特用线性块编码进行编码。基于每个输入位的重要性，输入位具有不等差错保护。输入比特可以基于每个输入比特的重要性而被复制，并且可以执行相等的保护编码。用于编码的生成矩阵可以通过传统基本序列的基本操作来生成，以为最高有效位（MSB）提供更多保护。

9. 发明申请

WO2007109040A3 METHOD AND APPARATUS FOR SWITCHING OPERATING MODES OF A RECEIVER 审中-公开
公开(公告)号：WO2007109040A3
公开(公告)日：2007-09-27
申请号：PCT/US2007/006395
申请日：2007-03-14
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J.
发明人： PIETRASKI, Philip, J.
IPC分类号： H04L25/03
摘要： In a wireless communication system, a method and apparatus switches operating modes of a receiver receiving data and operating in a first mode. The method comprises determining whether a criteria is met to switch the operating mode of the receiver. The operating mode of the receiver is switched from the first mode to a second mode if the criteria is met.

10. 发明申请

WO2006052404A2 METHOD AND APPARATUS FOR ESTIMATING THE STEP-SIZE OF AN ADAPTIVE EQUALIZER 审中-公开
标题翻译：用于估计自适应均衡器的步长的方法和装置
公开(公告)号：WO2006052404A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/037602
申请日：2005-10-20
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J. , BELURI, Mihaela , DEMIR, Alpaslan
发明人： PIETRASKI, Philip, J. , BELURI, Mihaela , DEMIR, Alpaslan
IPC分类号： H03D1/04 , H03K5/159
CPC分类号： H04L25/03019 , H04B2201/70701 , H04L2025/03687
摘要： A step-size estimator for controlling the step-size of an adaptive equalizer incorporated in a transceiver, (e.g., a wireless transmit/receive unit (WTRU)). The step-size estimator updates at least one adaptive equalizer tap used by the adaptive equalizer based on an apparent speed of a channel established between the transceiver and another transceiver. The step-size estimator includes a speed estimator, a signal-to-noise ratio (SNR) averager and a step-size mapping unit. The speed estimator is used to estimate the apparent speed of the channel, (i.e., the observed and/or measured rate of change of the channel impulse response). The SNR averager generates a common pilot channel (CPICH) SNR estimate. The step-size mapping unit uses the speed estimate and the CPICH SNR estimate to generate a step-size parameter, μ , and a filter taps leakage factor parameter, α , used by the adaptive equalizer to update the filter tap coefficient.
摘要翻译：用于控制结合在收发器（例如，无线发射/接收单元（WTRU））中的自适应均衡器的步长的步长估计器。步长估计器基于在收发器和另一收发器之间建立的通道的视在速度来更新由自适应均衡器使用的至少一个自适应均衡器抽头。步长估计器包括速度估计器，信噪比（SNR）平均器和步长映射单元。速度估计器用于估计信道的视在速度（即，观测和/或测量的信道脉冲响应的变化速率）。 SNR平均器生成公共导频信道（CPICH）SNR估计。步进大小映射单元使用速度估计和CPICH SNR估计来生成步长大小参数μ和由自适应均衡器使用的滤波器抽头泄漏因子参数a，以更新滤波器抽头系数。

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