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公开(公告)号：US5878093A
公开(公告)日：1999-03-02
申请号：US766081
申请日：1996-12-16
CPC分类号： H04B7/0857 , H04L1/06
摘要： In a communications system wherein a broadcast signal is received by a plurality of antennas each connected to a receiver, the resulting plurality of received signals are jointly subjected to automatic frequency correction (AFC) before interference rejection combining (IRC) or maximal ratio combining (MRC) processing to output an estimate of the broadcast signal. The joint automatic frequency correction processing involves computing and applying a frequency offset on a sample by sample basis to each of the received signals to output corresponding frequency corrected received signals for IRC or MRC processing.
摘要翻译： 在其中广播信号由连接到接收机的多个天线接收的通信系统中，所得到的多个接收信号在抗干扰组合（IRC）或最大比组合（MRC）之前共同进行自动频率校正（AFC） ）处理以输出广播信号的估计。 联合自动频率校正处理涉及对每个接收信号计算和采样样本的频偏，以输出相应的经频率校正的接收信号用于IRC或MRC处理。
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2.发明授权Method and apparatus for interference rejection with different beams, polarizations, and phase references 失效用不同光束，极化和相位参考的干扰抑制方法和装置
公开(公告)号：US6081566A
公开(公告)日：2000-06-27
申请号：US634719
申请日：1996-04-19
IPC分类号： H04L25/08 , H03M13/23 , H04B1/10 , H04B7/02 , H04B7/08 , H04B7/10 , H04B7/26 , H04J11/00 , H04L1/06 , H04L25/03 , H04L27/01 , H04W16/28 , H04L1/02
CPC分类号： H04B7/0854 , H04B7/0845 , H04B7/086 , H04B7/10 , H04L1/06 , H04L25/03331 , H04W16/28
摘要： A digital radio communication system includes processing to jointly mitigate the deleterious effects of fading, time dispersion and interference using interference rejection and diversity combining. The system employs a selection processor for preliminarily reducing the number of signals for interference rejection and diversity combining based on one or more criterion. The system accommodates signals from dual polarized antennas. In one particular embodiment, the system performs interference rejection and diversity combining by separating a received signal into its in-phase and quadrature components.
摘要翻译： 数字无线电通信系统包括使用干扰抑制和分集组合来共同减轻衰落，时间分散和干扰的有害影响的处理。 该系统采用选择处理器，用于基于一个或多个标准预先减少用于干扰抑制和分集组合的信号的数量。 该系统适应来自双极化天线的信号。 在一个具体实施例中，系统通过将接收的信号分离成其同相和正交分量来执行干扰抑制和分集组合。
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3.发明授权公开(公告)号：US06920191B2
公开(公告)日：2005-07-19
申请号：US09773889
申请日：2001-02-02
CPC分类号： H04L25/03006 , H04L25/0202 , H04L25/03993 , H04L2025/03617 , H04L2025/03624
摘要： A pulse-shape estimator calculates an impulse response for the transmit and receive pulse-shaping filters in a mobile wireless terminal. The pulse-shape estimator receives a training signal that has passed through the pulse-shaping filters and known training symbols. Based on the actual received signal containing the training symbols and the expected received signal, the pulse-shape estimator estimates the impulse response of the pulse-shaping filters. The calculated impulse response may be used to improve signal demodulation or to calculate the coefficients for a digital filter applied before demodulation to compensate for pulse-shape distortion.
摘要翻译： 脉冲形状估计器计算移动无线终端中的发射和接收脉冲整形滤波器的脉冲响应。 脉冲形状估计器接收通过脉冲整形滤波器和已知训练符号的训练信号。 基于包含训练符号和预期接收信号的实际接收信号，脉冲形状估计器估计脉冲整形滤波器的脉冲响应。 计算的脉冲响应可用于改善信号解调或计算在解调之前应用的数字滤波器的系数以补偿脉冲形状失真。
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4.发明申请Method and Apparatus for Generating Channel Quality Information for Wireless Communication 有权用于生成无线通信信道质量信息的方法和装置公开(公告)号：US20100183064A1
公开(公告)日：2010-07-22
申请号：US12750793
申请日：2010-03-31
IPC分类号： H04B17/00
CPC分类号： H04L1/0019 , H04B2201/709727 , H04L1/0002 , H04L1/0026 , H04L1/20 , H04L25/0202 , H04L25/0222 , H04L27/2647
摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.
摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。
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公开(公告)号：US07035359B2
公开(公告)日：2006-04-25
申请号：US09975636
申请日：2001-10-11
申请人： Karl James Molnar
发明人： Karl James Molnar
CPC分类号： H04L1/0001 , H04B1/7105 , H04L25/03305 , H04L2025/03535
摘要： Methods and systems are provided for processing a received signal including receiving the signal to provide a sequence of symbols associated with the received signal in respective ones of a plurality of symbol positions. A known block of the sequence of symbols containing known symbol values and an unknown block of the sequence of symbols containing unknown symbol values are identified. A desired demodulation type is determined for use in demodulating the unknown block based on the known symbol values. An interferer signal characteristic discontinuity location in the unknown block is detected. The unknown block is demodulated using a first selected demodulation type between the interferer signal characteristic discontinuity and the known block and a second selected demodulation type on another portion of the unknown block, the first selected demodulation type and the second selected demodulation type being selected based on the determined desired demodulation type for use in demodulating the unknown block and the detected interferer signal characteristic discontinuity.
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6.发明授权Apparatus for and method of adapting a radio receiver using control functions 有权使用控制功能适应无线电接收机的装置和方法公开(公告)号：US06832080B1
公开(公告)日：2004-12-14
申请号：US09660050
申请日：2000-09-12
IPC分类号： H04B110
CPC分类号： H04B1/0003 , H04B1/1027 , H04B1/7105 , H04B2201/7071 , H04L1/0001 , H04L25/03178 , H04L25/03305 , H04L25/03331
摘要： An adaptive radio receiver utilizes control functions derived from received signals in an interference-limited environment to decide whether to implement conventional single-user demodulation or joint demodulation. The decision to implement joint or conventional demodulation is based upon the values of estimates derived for Doppler spread, carrier-to-interference plus noise, dispersiveness and the likelihood of the presence of a dominant interferer.
摘要翻译： 自适应无线电接收机利用在受干扰限制的环境中从接收信号导出的控制功能来决定是否实施传统的单用户解调或联合解调。 实施联合或常规解调的决定基于针对多普勒扩展，载波干扰加噪声，分散性和存在显着干扰源的可能性的估计值。
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7.发明授权Method and apparatus for generating channel quality information for wireless communication 有权用于生成用于无线通信的信道质量信息的方法和装置公开(公告)号：US07773951B2
公开(公告)日：2010-08-10
申请号：US11438921
申请日：2006-05-23
CPC分类号： H04L1/0019 , H04B2201/709727 , H04L1/0002 , H04L1/0026 , H04L1/20 , H04L25/0202 , H04L25/0222 , H04L27/2647
摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.
摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。
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公开(公告)号：US07599702B2
公开(公告)日：2009-10-06
申请号：US10745051
申请日：2003-12-23
IPC分类号： H04W40/00
CPC分类号： H04W72/1231 , H04B2201/709727 , H04L1/20 , H04L5/0044 , H04L5/006 , H04W52/16 , H04W52/226 , H04W52/325 , H04W52/367
摘要： A base station schedules one of a plurality of mobile terminals based on an expected SIR of an effective traffic channel associated with a non-scheduled mobile terminal. The expected SIR is generated by computing the expected SIR of a hypothesized traffic channel with a pre-filter adapted to the non-scheduled mobile terminal that would result if the non-scheduled mobile terminal was scheduled. A base station then schedules transmissions to the plurality of mobile terminals based on the computed expected SIR. The expected SIR may be computed so as to compensate for mismatch between the hypothesized traffic channel and a pilot channel associated with the non-scheduled mobile terminal. Alternatively, the expected SIR may be directly computed based on an estimate of the pre-filter of the hypothesized traffic channel.
摘要翻译： 基站基于与非调度移动终端相关联的有效业务信道的期望SIR来调度多个移动终端中的一个。 通过利用适配于非调度移动终端的预滤波器来计算假设的业务信道的预期SIR来产生预期的SIR，如果非调度移动终端被调度，则将产生。 基站然后基于所计算的预期SIR调度到多个移动终端的传输。 可以计算期望的SIR，以补偿假设业务信道与与非调度移动终端相关联的导频信道之间的失配。 或者，可以基于假设的业务信道的前置过滤器的估计来直接计算预期的SIR。
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9.发明授权Method and apparatus for facilitating signal discrimination in a wireless network by applying known frequency offsets 有权通过应用已知的频率偏移来促进无线网络中的信号鉴别的方法和装置公开(公告)号：US07327811B2
公开(公告)日：2008-02-05
申请号：US10249329
申请日：2003-04-01
申请人： Karl James Molnar
发明人： Karl James Molnar
IPC分类号： H04L27/06
CPC分类号： H04B7/0613 , H04B7/0837
摘要： Method and apparatus for demodulation in a system having known frequency offsets. First and second signals from two users occupy substantially the same bandwidth and use substantially the same carrier frequency, while the relative frequencies of the signals on different transmit antennas associated with a base station are adjusted to have known, specific frequency offsets. These known frequency offsets are used at the receiver to aid in estimating any known frequency errors and to demodulate the multiple transmitted signals. In addition to being useful for demodulation, known frequency offsets can be assigned to each of a plurality of base stations to facilitate identification of a particular base station. The approach can be used for any type of time domain multiple access (TDMA) system, including Global System for Mobile (GSM), or for code division multiple access (CDMA) systems.
摘要翻译： 具有已知频率偏移的系统中的解调方法和装置。 来自两个用户的第一和第二信号占据基本上相同的带宽并且使用基本相同的载波频率，而与基站相关联的不同发射天线上的信号的相对频率被调整为具有已知的特定频率偏移。 这些已知的频率偏移在接收机处被使用以帮助估计任何已知的频率误差并解调多个发送的信号。 除了可用于解调之外，已知的频率偏移可以分配给多个基站中的每一个，以便于识别特定的基站。 该方法可用于任何类型的时域多址（TDMA）系统，包括全球移动系统（GSM）或码分多址（CDMA）系统。
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10.发明申请公开(公告)号：US20070259671A1
公开(公告)日：2007-11-08
申请号：US11555294
申请日：2006-11-01
申请人： Jung-Fu Cheng , Stephen J. Grant , Dennis Hui , Karl James Molnar
发明人： Jung-Fu Cheng , Stephen J. Grant , Dennis Hui , Karl James Molnar
IPC分类号： H04Q7/20
CPC分类号： H04L1/0026 , H04L1/0016 , H04L1/20 , H04W48/08 , H04W72/0413 , H04W72/085
摘要： Channel Quality Indicator (CQI) tables are tailored to one or more cells of interest. Tailoring CQI tables to individual cells permits devices such as radio base stations to more reliably and accurately allocate radio resources to those cells since channel conditions vary from cell to cell. According to one embodiment, a table of CQI values is composed by analyzing information indicating channel quality in a cell of interest and generating at least one table of CQI values tailored to the cell of interest based on the information analyzed. The tailored CQI table may be deployed to another device for use in reporting channel quality information. The device may report channel quality by accessing the tailored CQI and identifying the range of CQI values that includes a channel quality estimate derived by the device. The device generates a channel quality information message based on the identified range of CQI values.
摘要翻译： 信道质量指示符（CQI）表针对感兴趣的一个或多个小区而定制。 由于信道条件因单元而异，所以将CQI表裁定到单个小区允许诸如无线电基站之类的设备更可靠地且准确地分配无线电资源给这些小区。 根据一个实施例，通过分析指示感兴趣的小区中的信道质量的信息并基于分析的信息生成针对感兴趣小区定制的CQI值的至少一个表格来组成CQI值表。 可以将定制的CQI表部署到用于报告信道质量信息的另一设备。 设备可以通过访问定制的CQI并且识别包括由设备导出的信道质量估计的CQI值的范围来报告信道质量。 该设备基于所识别的CQI值范围来生成信道质量信息消息。
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