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1. 发明申请

WO2010151847A1 DYNAMICALLY CHANGING A TRANSMITTER SAMPLING FREQUENCY FOR A DIGITAL-TO-ANALOG CONVERTER (DAC) TO REDUCE INTERFERENCE FROM DAC IMAGES 审中-公开
标题翻译：动态更改用于数字模拟转换器（DAC）的发射机采样频率，以减少DAC图像的干扰
公开(公告)号：WO2010151847A1
公开(公告)日：2010-12-29
申请号：PCT/US2010/040111
申请日：2010-06-26
申请人： QUALCOMM INCORPORATED , MARRA, Thomas D. , LAU, Soon-Seng , KANG, Inyup , MIRBAGHERI, Arash
发明人： MARRA, Thomas D. , LAU, Soon-Seng , KANG, Inyup , MIRBAGHERI, Arash
IPC分类号： H04B1/52 , H04B1/04 , H03M3/00
CPC分类号： H04B1/525 , H03M1/661 , H04B1/0475
摘要： A method for interference reduction is described. The method is implemented in a wireless device. It is determined that a page is going to be received via a secondary receiver. It is also determined that a digital-to-analog converter (DAC) image from a transmitter will cause interference with the secondary receiver when the page is received. A sampling frequency of the DAC for the transmitter is changed so that there are not any DAC images from the transmitter that will cause interference with the secondary receiver.
摘要翻译：描述了一种减少干扰的方法。该方法在无线设备中实现。确定将通过次级接收器接收页面。还确定，当接收到页面时，来自发射器的数模转换器（DAC）图像将引起与次级接收机的干扰。改变发射机的DAC的采样频率，使得没有来自发射机的任何DAC图像将导致与次要接收机的干扰。

2. 发明申请

WO2009158043A1 METHODS AND SYSTEMS FOR SPACE-TIME CODING SIGNAL DECODING USING MIMO DECODER 审中-公开
标题翻译：使用MIMO解码器的空时编码信号解码的方法和系统
公开(公告)号：WO2009158043A1
公开(公告)日：2009-12-30
申请号：PCT/US2009/031529
申请日：2009-01-21
申请人： QUALCOMM INCORPORATED , PARK, Jong Hyeon , BANISTER, Brian Clark , KANG, Inyup , KIM, Je Woo , HURT, James Y. , BREHLER, Matthias
发明人： PARK, Jong Hyeon , BANISTER, Brian Clark , KANG, Inyup , KIM, Je Woo , HURT, James Y. , BREHLER, Matthias
IPC分类号： H04L1/06
CPC分类号： H04L1/0631 , H04L1/0662
摘要： Space time coding (STC) may be applied at the transmitter adding redundant information in both space and time dimensions. At the receiver, the received STC signal may be decoded using a spatial multiplexing MIMO decoding, for example, based on either Minimum Mean Square Error (MMSE) or maximum-likelihood (ML) algorithms. A selective STC decoder may incorporate both the conventional maximum ratio combining (MRC) decoding scheme and a MIMO decoding scheme. One of the STC decoding schemes may be selected, for example, based on estimated channel conditions in order to achieve a trade-off between error rate performance and computational complexity. Components used for a non-selected scheme may be powered down.
摘要翻译：空间时间编码（STC）可以在发射机上应用于空间和时间维度上的冗余信息。在接收机处，可以使用例如基于最小均方误差（MMSE）或最大似然（ML）算法的空间复用MIMO解码来解码所接收的STC信号。选择性STC解码器可以并入常规的最大比合并（MRC）解码方案和MIMO解码方案。可以例如基于估计的信道条件来选择STC解码方案之一，以便实现错误率性能和计算复杂度之间的权衡。用于未选择方案的组件可能会关闭电源。

3. 发明申请

WO2007035550A1 FRACTIONALLY-SPACED EQUALIZERS FOR SPREAD SPECTRUM WIRELESS COMMUNICATION 审中-公开
标题翻译：用于传播光谱无线通信的均匀空间均衡器
公开(公告)号：WO2007035550A1
公开(公告)日：2007-03-29
申请号：PCT/US2006/036137
申请日：2006-09-15
申请人： QUALCOMM INCORPORATED , SUBRAHMANYA, Parvathanathan , KANG, Inyup , FEI, Jia , SUNDARESAN, Rajesh
发明人： SUBRAHMANYA, Parvathanathan , KANG, Inyup , FEI, Jia , SUNDARESAN, Rajesh
IPC分类号： H04B1/707 , H04B7/08 , H04L25/03
CPC分类号： H04B1/71057 , H04B7/0669 , H04B7/0673 , H04B7/0845 , H04L25/03044 , H04L25/03292 , H04L2025/03509
摘要： This disclosure describes equalization techniques for spread spectrum wireless communication. The techniques may involve estimating a channel impulse response, estimating channel variance, and selecting filter coefficients for an equalizer based on the estimated channel impulse response and the estimated channel variance. Moreover, in accordance with this disclosure, the channel variance estimation involves estimation of two or more co-variances for different received samples. Importantly, the equalizer is "fractionally spaced" which means that the equalizer defines fractional filtering coefficients (filter taps), unlike conventional equalizers that presume that filter coefficients are defined at integer chip spacing. The techniques can allow the equalizer to account for antenna diversity, such as receive diversity, transmit diversity, or possibly both.
摘要翻译：本公开描述了用于扩频无线通信的均衡技术。这些技术可以包括基于所估计的信道脉冲响应和所估计的信道方差估计信道脉冲响应，估计信道方差，以及为均衡器选择滤波器系数。此外，根据本公开，信道方差估计涉及对于不同接收样本的两个或多个协方差的估计。重要的是，均衡器是“分数间隔”的，这意味着均衡器定义分数滤波系数（滤波器抽头），不同于传统的均衡器，假设滤波器系数是以整数芯片间隔定义的。这些技术可以允许均衡器考虑天线分集，例如接收分集，发射分集，或者可能两者。

4. 发明申请

WO2006122101A3 REDUCED CELL ACQUISITION TIME 审中-公开
公开(公告)号：WO2006122101A3
公开(公告)日：2006-11-16
申请号：PCT/US2006/017879
申请日：2006-05-08
申请人： QUALCOMM INCORPORATED , KANG, Inyup
发明人： KANG, Inyup
IPC分类号： H04B1/707
摘要： A method and apparatus for reduced acquisition time are disclosed. In one embodiment, such as in a W-CDMA system, a receiver receives one or more signals from remote stations, each signal comprising a scrambling code associated with one of a plurality of code groups, each code group identified by a unique series of a synchronization codes. A searcher identifies a subset of first synchronization codes, and a processor selects one or more hypotheses in response to the received subset. The searcher may then perform searching for a scrambling code in accordance with the one or more hypotheses. The scrambling code search may be performed in parallel with continued synchronization code searching. Various other embodiments are also disclosed.

5. 发明申请

WO2005086358A1 EFFICIENT MULTI-SYMBOL DEINTERLEAVER 审中-公开
标题翻译：有效的多符号检测器
公开(公告)号：WO2005086358A1
公开(公告)日：2005-09-15
申请号：PCT/US2005/006635
申请日：2005-02-25
申请人： QUALCOMM INCORPORATED , PAN, Hanfang , KANG, Inyup , KRYSL, James
发明人： PAN, Hanfang , KANG, Inyup , KRYSL, James
IPC分类号： H03M13/27
CPC分类号： H03M13/2764 , H03M13/2703
摘要： Embodiments disclosed herein address the need in the art for an efficient multi-symbol deinterleaver. In one aspect, a plurality of memory banks are deployed to receive and simultaneously store a plurality of values, such as soft decision values determined from a modulation constellation, in accordance with a storing pattern. In another aspect, the storing pattern comprises a plurality of cycles, a selected subset of the plurality of memory banks and an address offset for use in determining the address for storing into the respective memory banks indicated for each cycle. In yet another aspect, the stored values may be accessed in order with a sequentially increasing index, such as an address. Various other aspects are also presented. These aspects have the benefit of allowing multiple symbol values to be deinterleaved in an efficient manner, thus meeting computation time constraints, and conserving power.
摘要翻译：本文公开的实施例解决了本领域对于有效的多符号解交织器的需要。在一个方面，多个存储体被部署以根据存储模式来接收并同时存储多个值，诸如从调制星座确定的软判决值。在另一方面，存储模式包括多个周期，多个存储体的选定子集和用于确定用于存储到为每个周期指示的相应存储体中的地址的地址偏移。在另一方面，可以按顺序增加的索引（诸如地址）按顺序访问所存储的值。还提出了各种其他方面。这些方面具有允许以有效的方式解码多个符号值的好处，从而满足计算时间限制并节省功率。

6. 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。

7. 发明申请

WO2011106651A2 APPARATUS AND METHODS FOR SAMPLING RATE CONVERSION FOR WIRELESS TRANSCEIVERS 审中-公开
标题翻译：用于无线收发器采样速率转换的装置和方法
公开(公告)号：WO2011106651A2
公开(公告)日：2011-09-01
申请号：PCT/US2011/026254
申请日：2011-02-25
申请人： QUALCOMM Incorporated , JI, Zhu , BANISTER, Brian Clarke , KANG, Inyup
发明人： JI, Zhu , BANISTER, Brian Clarke , KANG, Inyup
IPC分类号： H03H17/06
CPC分类号： H03H17/0294 , H03H17/0642
摘要： Disclosed are methods and apparatus for sampling rate conversion in a wireless transceiver. The methods and apparatus achieve agile setting of sampling rates or resampling by adaptively setting a sampling rate of a signal based on at least one performance requirement of the transceiver. In particular, the methods and apparatus perform sampling of an input signal at a first sampling rate to gain one or more input signal samples. The input signal samples are then filtered using parallel or polyphase filtering operating at a second sampling rate lower than the first sampling rate. The filtered samples are then interpolated at the second sampling rate to achieve resampling of the input signal. Polyphase filtering affords an effectively high input sampling rate for good spectrum image rejection, while allowing the second sampling rate to be effectively much lower than the first rate, thereby reducing the complexity of multiplier operations for interpolation.
摘要翻译：公开了用于在无线收发机中采样率转换的方法和装置。方法和装置通过基于收发器的至少一个性能要求自适应地设置信号的采样速率来实现对采样率或重采样的敏捷设置。特别地，方法和装置以第一采样率对输入信号进行采样，以获得一个或多个输入信号样本。然后使用低于第一采样率的第二采样率的并行或多相滤波来过滤输入信号样本。然后以第二采样率对经滤波的采样进行内插，以实现对输入信号的重新采样。多相滤波提供有效的高输入采样率，以获得良好的频谱图像抑制，同时允许第二采样率有效地远低于第一速率，从而降低了插值的乘法器运算的复杂度。

8. 发明申请

WO2011106264A3 MULTI-TERM DEMAPPING FOR MULTI-CHANNEL WIRELESS COMMUNICATION 审中-公开
标题翻译：多通道无线通信的多阶段解复用
公开(公告)号：WO2011106264A3
公开(公告)日：2011-09-01
申请号：PCT/US2011/025552
申请日：2011-02-18
申请人： QUALCOMM Incorporated , MCCLOUD, Michael, L. , BREHLER, Matthias , PARK, Ju Won , PARK, Jong Hyeon , KIM, Je Woo , KANG, Inyup , BANISTER, Brian, C.
发明人： MCCLOUD, Michael, L. , BREHLER, Matthias , PARK, Ju Won , PARK, Jong Hyeon , KIM, Je Woo , KANG, Inyup , BANISTER, Brian, C.
IPC分类号： H04L25/03
摘要： Providing for reduced complexity or improved accuracy in de-mapping received wireless data streams for multi-channel wireless communication is described herein. By way of example, a low-complexity likelihood algorithm can be employed to de-map data bits from the wireless data streams. In one particular example, the likelihood algorithm can approximate a received bit with a subset of received wireless symbols correlated the bit, reducing algorithm complexity. In other examples, a limited set of received wireless symbols can be employed for the subset, further reducing algorithm complexity. According to at least one other example, logarithmic terms of the algorithm can be approximated with non-logarithmic functions, such as a look-up table, series expansion, polynomial approximation, or the like. These approximations can enhance symbol de-mapping accuracy while maintaining or improving processing overhead for a wireless receiver.
摘要翻译：在此描述了针对用于多信道无线通信的接收到的无线数据流进行解映射时降低的复杂度或改进的准确度。举例来说，可以采用低复杂度似然算法来从无线数据流中解映射数据比特。在一个特定示例中，似然算法可以用接收到的与该位相关的无线符号的子集来近似接收的位，从而降低算法复杂度。在其他示例中，可以为该子集采用有限组的接收无线符号，从而进一步降低算法复杂度。根据至少一个其他示例，算法的对数项可以用诸如查找表，序列扩展，多项式近似等的非对数函数近似。这些近似值可以增强符号解映射的准确性，同时保持或改善无线接收器的处理开销。

9. 发明申请

WO2009003115A1 CONCURRENT MULTIPLE-DIMENSION WORD-ADDRESSABLE MEMORY ARCHITECTURE 审中-公开
标题翻译：同时存在多个字节的可寻址存储器架构
公开(公告)号：WO2009003115A1
公开(公告)日：2008-12-31
申请号：PCT/US2008/068388
申请日：2008-06-26
申请人： QUALCOMM INCORPORATED , CHEN, Chih-Tung , KANG, Inyup , CHAIYAKUL, Viraphol
发明人： CHEN, Chih-Tung , KANG, Inyup , CHAIYAKUL, Viraphol
IPC分类号： G11C8/16 , G06F12/02
CPC分类号： G11C8/10 , G06F12/0207 , G11C8/16 , H03M13/2707 , H03M13/2764
摘要： An N-dimension addressable memory is disclosed. The memory includes an Ndimension array of bit cells and logic configured to address each bit cell using NDimension Addressing (NDA), where N is at least two and the array of bit cells is addressable by N orthogonal address spaces. Each bit cell of the N-dimension addressable memory includes a bit storage element, N word lines, and N bit lines.
摘要翻译：公开了一种N维可寻址存储器。存储器包括位单元的Ndimension阵列和配置为使用维度寻址（NDA）寻址每个位单元的逻辑，其中N至少为2，并且位单元阵列可由N个正交地址空间寻址。 N维可寻址存储器的每个位单元包括位存储元件，N个字线和N个位线。

10. 发明申请

WO2008064262A2 IMPROVED FREQUENCY CHANGER CIRCUITS 审中-公开
标题翻译：改进的变频器电路
公开(公告)号：WO2008064262A2
公开(公告)日：2008-05-29
申请号：PCT/US2007/085296
申请日：2007-11-20
申请人： QUALCOMM INCORPORATED , FILIPOVIC, Daniel, F. , KANG, Inyup
发明人： FILIPOVIC, Daniel, F. , KANG, Inyup
CPC分类号： H04B15/00 , H04B1/109
摘要： In accordance with one aspect of the disclosure, apparatus are provided. A filter is provided to receive from an antenna a receive signal of a given type and a low noise amplifier is provided to amplify the received signal. A translator down translates the receive signal carried at a radio frequency to be carried at an intermediate frequency. An I/Q channel separator is provided to separate the receive signal carried at the intermediate frequency into an analog in-phase (I) signal in an I channel and an analog quadrature-phase (Q) in a Q channel. An analog-to-digital (A/D) converter is provided to respectively convert the I signal and the Q signal to digital domain representations of the I signal and the Q signal. An intermodulation (IM) distortion avoider is provided to avoid IM distortion in the receive signal. The IM distortion avoider includes a carrier frequency exchanger to exchange an IM carrier frequency of IM distortion contained in the receive signal with a carrier frequency of the receive signal.
摘要翻译：根据本公开的一个方面，提供了一种装置。提供滤波器以从天线接收给定类型的接收信号，并且提供低噪声放大器来放大接收到的信号。翻译器将在射频下携带的接收信号转换为中频。提供I / Q信道分离器以将在中频处承载的接收信号分离成I信道中的模拟同相（I）信号和Q信道中的模拟正交相位（Q）。提供模数（A / D）转换器以分别将I信号和Q信号转换为I信号和Q信号的数字域表示。提供互调（IM）失真避免器以避免接收信号中的IM失真。 IM失真避免器包括载波频率交换器，以将接收信号中包含的IM失真的IM载波频率与接收信号的载波频率进行交换。

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