专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2002099992A1 METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中取消导频干扰的方法和装置
公开(公告)号：WO2002099992A1
公开(公告)日：2002-12-12
申请号：PCT/US2002/018133
申请日：2002-06-06
申请人： QUALCOMM INCORPORATED
发明人： LEVIN, Jeffrey, A. , WILBORN, Thomas, B. , BUTLER, Brian, K. , BENDER, Paul, E.
IPC分类号： H04B1/707
CPC分类号： H04B1/7107 , H04B2201/70701
摘要： Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence to provide the estimated plot interference. The pilot interference estimates due to all interfering multipaths are combined to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.
摘要翻译：用于在无线（例如CDMA）通信系统中消除导频干扰的技术。在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道响应与扩展序列提供估计的图干扰。由于所有干扰多径导致的导频干扰估计被组合以导出总导频干扰，其从数据样本中减去以提供导频取消的数据样本。然后处理这些样本以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。

2. 发明申请

WO2004114714A1 INTER-FREQUENCY NEIGHBOR LIST SEARCHING 审中-公开
标题翻译：互频邻里列表搜索
公开(公告)号：WO2004114714A1
公开(公告)日：2004-12-29
申请号：PCT/US2004/018614
申请日：2004-06-10
申请人： QUALCOMM INCORPORATED , SHIU, Da-shan , WILBORN, Thomas, B. , RICK, Roland , NAGARAM, Srinivasa Rao , EMANI, Chalapathi Rao , GURUMOORTHY, Ramachandran , CHAO, Jesus , DOERFLER, Steven, J. , ANG, Peter , KUNISETTI, Srividya , GHO, Gwang-Hyun , BAILEY, Thomas
发明人： SHIU, Da-shan , WILBORN, Thomas, B. , RICK, Roland , NAGARAM, Srinivasa Rao , EMANI, Chalapathi Rao , GURUMOORTHY, Ramachandran , CHAO, Jesus , DOERFLER, Steven, J. , ANG, Peter , KUNISETTI, Srividya , GHO, Gwang-Hyun , BAILEY, Thomas
IPC分类号： H04Q7/38
CPC分类号： H04W36/0083 , H04B1/70754 , H04W36/14 , H04W88/06
摘要： Techniques for inter-frequency neighbor list searching are disclosed. Embodiments disclosed herein address the need for inter-frequency neighbor list searching. In one embodiment, a searcher (340) is deployed to search a PN space with a first set of search parameters and to return search results. A subset of those results are selected, along with a previously saved search result(355), to form a set of PN locations for a second search. The second search is performed on a window around each of the PN locations, using a second set of search parameters. The maximum peak from the second search is saved for use in future iterations. In one embodiment, the subset is selected as the highest energy level peaks from the first search. In one embodiment, if a maximum peak is deemed to correspond to a valid base station when the position of that maximum peak is within a pre-determined time offset from a previous maximum peak.
摘要翻译：公开了频间邻居列表搜索技术。本文公开的实施例解决了对频间邻居列表搜索的需要。在一个实施例中，部署搜索器（340）以用第一组搜索参数搜索PN空间并返回搜索结果。选择这些结果的子集以及先前保存的搜索结果（355），以形成用于第二搜索的一组PN位置。使用第二组搜索参数，在围绕每个PN位置的窗口上执行第二搜索。第二次搜索的最大峰值被保存以供将来的迭代使用。在一个实施例中，子集被选择为来自第一搜索的最高能级峰值。在一个实施例中，如果当该最大峰值的位置在与先前最大峰值的预定时间偏移之内时，认为最大峰值对应于有效基站。

3. 发明申请

WO2005036915A2 CELL SELECTION TECHNIQUES FOR FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS 审中-公开
标题翻译：用于频分多址系统的小区选择技术
公开(公告)号：WO2005036915A2
公开(公告)日：2005-04-21
申请号：PCT/US2004/033011
申请日：2004-10-08
申请人： QUALCOMM INCORPORATED , RICK, Roland , WILBORN, Thomas, B.
发明人： RICK, Roland , WILBORN, Thomas, B.
IPC分类号： H04Q7/38
CPC分类号： H04W48/20 , H04B17/318
摘要： This disclosure is directed to power estimation techniques for use by a subscriber unit of a frequency division multiple access (FDMA) system during the cell selection process. The power estimation techniques recognize that adjacent cells, i.e., adjacent in terms of frequency, often have slight overlap. Thus, the power from a signal associated with one cell can cause power to be detected in an adjacent cell, even if no signal is actually present in the adjacent cell. In accordance with this disclosure, techniques are described for identifying, reducing or eliminating the detection of false positives in such adjacent cells. By identifying, reducing or eliminating the detection of false positives, the cell selection process can be accelerated and additional processing of false positive signals in such adjacent cells can be avoided.
摘要翻译：本公开针对在小区选择过程期间由频分多址（FDMA）系统的订户单元使用的功率估计技术。功率估计技术认识到相邻小区，即在频率方面相邻，通常具有轻微的重叠。因此，即使没有信号实际存在于相邻小区中，来自与一个小区相关联的信号的功率也可以导致在相邻小区中检测到功率。根据本公开，描述了用于识别，减少或消除这种相邻小区中的误报的检测的技术。通过识别，减少或消除误报的检测，可以加速小区选择过程，并且可以避免在这样的相邻小区中对假正信号进行附加处理。

4. 发明申请

WO2002099991A1 METHOD AND APPARATUS FOR BANDWIDTH ESTIMATION 审中-公开
标题翻译：用于带宽估计的方法和装置
公开(公告)号：WO2002099991A1
公开(公告)日：2002-12-12
申请号：PCT/US2002/017818
申请日：2002-06-05
申请人： QUALCOMM INCORPORATED
发明人： PATEL, Shimman , WILBORN, Thomas, B.
IPC分类号： H04B1/707
CPC分类号： H04B1/7097 , H04B2201/70701
摘要： A computationally efficient method and apparatus for estimating the bandwidth of a received signal. In an exemplary implementation, signal power within several selectably narrow frequency bands, each centered about a selected frequency, are calculated using only a relatively small number of arithmetic operations. Applications include using the estimated bandwidth to estimate the relative velocity between the transmitter and receiver, and modifying receiver operation based on such estimate.
摘要翻译：一种用于估计接收信号的带宽的计算有效的方法和装置。在示例性实现中，每个以所选频率为中心的几个可选择窄的频带内的信号功率仅使用较少数量的算术运算来计算。应用包括使用估计的带宽来估计发射机和接收机之间的相对速度，以及基于这样的估计修改接收机操作。

5. 发明申请

WO2012135837A1 DYNAMIC IMAGE STABILIZATION FOR MOBILE/PORTABLE ELECTRONIC DEVICES 审中-公开
标题翻译：移动/便携式电子设备的动态图像稳定
公开(公告)号：WO2012135837A1
公开(公告)日：2012-10-04
申请号：PCT/US2012/031868
申请日：2012-04-02
申请人： QUALCOMM INCORPORATED , WILBORN, Thomas, B.
发明人： WILBORN, Thomas, B.
IPC分类号： G06T7/20 , H04N5/232
CPC分类号： H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N2007/145
摘要： Apparatus and methods for stabilizing an image displayed on a mobile device are presented. In some circumstances, the display on a mobile device moves with respect to the ground, which may result from vibrations in a moving vehicle. Embodiments use a sequence of images to determine a displacement of a stationary feature relative to the mobile device. This determined displacement may be a predicted displacement that estimates a displacement that probably will occur in the immediate future. Next, the displacement may be projected to a flat plane of the display. Finally, information presented on the display is moved in an opposite direction of the determined or projected displacement, thus compensating for the displacement and having the effect of stabilizing the image on the mobile device, such that the displayed image appears to be still in space even though the mobile device is vibrating or shaking relative to the Earth.
摘要翻译：呈现用于稳定在移动设备上显示的图像的装置和方法。在某些情况下，移动设备上的显示器相对于地面移动，这可能由移动车辆中的振动引起。实施例使用一系列图像来确定固定特征相对于移动设备的位移。该确定的位移可以是估计可能在不久的将来将发生的位移的预测位移。接下来，位移可以投影到显示器的平面。最后，呈现在显示器上的信息以确定的或投影位移的相反方向移动，从而补偿位移并且具有使移动设备上的图像稳定的效果，使得显示的图像看起来仍然在空间中尽管移动设备相对于地球振动或振动。

6. 发明申请

WO2011106444A1 CODE BLOCK INTERFERENCE CANCELLATION 审中-公开
标题翻译：代码块干扰取消
公开(公告)号：WO2011106444A1
公开(公告)日：2011-09-01
申请号：PCT/US2011/025947
申请日：2011-02-23
申请人： QUALCOMM INCORPORATED , WILBORN, Thomas, B. , BHATTACHARJEE, Supratik
发明人： WILBORN, Thomas, B. , BHATTACHARJEE, Supratik
IPC分类号： H04J11/00 , H04B1/7107
CPC分类号： H04B1/7107 , H04J11/004
摘要： Certain aspects of the present disclosure propose an interference cancellation method based on the sub-blocks inside a block. For example, in the long term evolution (LTE) standard, the sub-blocks may be code blocks and the blocks may be transport block.
摘要翻译：本公开的某些方面提出了基于块内的子块的干扰消除方法。例如，在长期演进（LTE）标准中，子块可以是码块，并且块可以是传输块。

7. 发明申请

WO2004045238A1 METHOD, APPARATUS, AND SYSTEM FOR RECEIVING DATA ON A FIRST FREQUENCY BAND AND OBSERVING A SECOND FREQUENCY BAND 审中-公开
标题翻译：用于接收第一频带数据的方法，装置和系统，并观察第二频带
公开(公告)号：WO2004045238A1
公开(公告)日：2004-05-27
申请号：PCT/US2003/036084
申请日：2003-11-07
申请人： QUALCOMM, INCORPORATED
发明人： WILBORN, Thomas, B. , JOHN, Johnny, K.
IPC分类号： H04Q7/38
CPC分类号： H04B17/309
摘要： A method of signal reception according to one embodiment of the invention includes receiving a set of data values over a first frequency band during a first time slot (T110), and receiving another set of data values over the first frequency band during a second time slot which is after the first time slot (T130). Between the first and second time slots, the method includes sampling a signal received over a second frequency band and storing the samples (T120). Based on the samples, a received signal quality value is calculated (T140).
摘要翻译：根据本发明的一个实施例的信号接收方法包括在第一时隙（T110）期间在第一频带上接收一组数据值，以及在第二时隙期间在第一频带上接收另一组数据值在第一时隙（T130）之后。在第一和第二时隙之间，该方法包括对通过第二频带接收的信号进行采样并存储样本（T120）。基于样本，计算接收信号质量值（T140）。

8. 发明申请

WO2012012248A1 ADAPTIVE QUANTIZATION OF DECISION METRICS IN A WIRELESS RECEIVER 审中-公开
标题翻译：无线接收机决策量度的自适应量化
公开(公告)号：WO2012012248A1
公开(公告)日：2012-01-26
申请号：PCT/US2011/043897
申请日：2011-07-13
申请人： QUALCOMM INCORPORATED , WILBORN, Thomas, B. , BANISTER, Brian, C. , YUN, Sungho , BHATTACHARJEE, Supratik , KANG, Inyup
发明人： WILBORN, Thomas, B. , BANISTER, Brian, C. , YUN, Sungho , BHATTACHARJEE, Supratik , KANG, Inyup
IPC分类号： H04L25/03 , H04L25/06
CPC分类号： H04L25/03184 , H04L25/067
摘要： A method for quantizing decision metrics (e.g., log likelihood ratios (LLRs)) for reduction of memory requirements in wireless communication is described. The method includes selecting a quantization algorithm. The quantization algorithm may be selected as a function of a characteristic of a decision metric representative of a transport block received over a communication channel, a characteristic of the transport block, or a condition of the communication channel. The method further includes quantizing the decision metric using the selected quantization algorithm to generate at least one quantized decision metric representative of the transport block. The method further includes storing the quantized decision metric and an indicia of the selected quantization algorithm to enable recovery of the decision metric representative of the transport block prior to decoding.
摘要翻译：描述了用于量化用于减少无线通信中的存储器要求的决策度量（例如，对数似然比（LLR））的方法。该方法包括选择量化算法。量化算法可以作为代表通过通信信道接收的传输块的决策度量，传输块的特性或通信信道的条件的特性的函数来选择。该方法还包括使用所选择的量化算法对决策度量进行量化，以生成表示传输块的至少一个量化决策度量。该方法还包括存储量化的决策度量和所选量化算法的标记，以使得能够在解码之前恢复表示传输块的决策度量。

9. 发明申请

WO2005022767A1 CELL SEARCH TIME REDUCTION USING KNOWN SCRAMBLING CODES 审中-公开
标题翻译：使用已知的SCRAMBLING代码进行细节搜索时间缩短
公开(公告)号：WO2005022767A1
公开(公告)日：2005-03-10
申请号：PCT/US2004/028059
申请日：2004-08-27
申请人： QUALCOMM INCORPORATED , AMERGA, Messay , WILBORN, Thomas, B. , SINGH, Gurdeep
发明人： AMERGA, Messay , WILBORN, Thomas, B. , SINGH, Gurdeep
IPC分类号： H04B1/707
CPC分类号： H04B1/70735 , H04B1/7083 , H04B2201/70702
摘要： Techniques for reducing search time using known scrambling code offsets are disclosed. In one embodiment, a plurality of search results is generated by correlating a received signal with a synchronization sequence. The plurality of search results is reduced by removing any results within a stored threshold. Further, the plurality of search result is reduced by removing those results already detected in a previous analysis.
摘要翻译：公开了使用已知的扰码偏移减少搜索时间的技术。在一个实施例中，通过将接收的信号与同步序列相关联来产生多个搜索结果。通过去除存储的阈值内的任何结果来减少多个搜索结果。此外，通过去除先前分析中已经检测到的那些结果来减少多个搜索结果。

10. 发明申请

WO2003041309A1 SLEW RATE LIMITED SIGNAL STRENGTH PREDICTION 审中-公开
标题翻译： SLEW RATE有限公司信号强度预测
公开(公告)号：WO2003041309A1
公开(公告)日：2003-05-15
申请号：PCT/US2002/035275
申请日：2002-11-01
申请人： QUALCOMM, INCORPORATED
发明人： WILBORN, Thomas, B. , GARDNER, William, R. , MOLLENKOPF, Steven, M.
IPC分类号： H04B17/00
CPC分类号： H04W52/223 , H04B17/318 , H04B17/373 , H04W52/24 , H04W52/44 , H04W52/52
摘要： A method, apparatus and computer program product for predicting received signal strength in a wireless mobile receiver. The invention bounds the range of allowed values for a next predicted signal. The bounded prediction compensates for erroneous values from multipath fading. The predicted signal strength is used to set the mobile receiver amplifier gain to the desired level.
摘要翻译：一种用于在无线移动接收机中预测接收信号强度的方法，装置和计算机程序产品。本发明限制下一个预测信号的允许值的范围。有界预测补偿来自多径衰落的错误值。预测信号强度用于将移动接收机放大器增益设置为所需的电平。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式