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11.发明授权公开(公告)号：US08036694B2
公开(公告)日：2011-10-11
申请号：US11721795
申请日：2005-12-19
IPC分类号： H04B7/00
CPC分类号： H04W52/125 , H04W52/08 , H04W52/225 , H04W52/24 , H04W52/246
摘要： A method for generating a power control command in a transceiver in a wireless communication system, where the method comprises the steps of calculating, at the beginning of a predefined time period, a quality measure reference value, generating, repeatedly during the predefined time period, an estimated quality measure value of a signal received at the transceiver; generating a power control command in dependence of the estimated quality measure value and the quality measure reference value; and generating, a number of times during the predefined time period, a modified quality measure reference value from the quality measure reference value. The step of generating the power control command comprises comparing the estimated quality measure value with the modified quality measure reference value. A power control unit, comprising a quality measure estimator, a calculator, a first controller, a second controller and an inner loop element, is configured to implement the method.
摘要翻译： 一种用于在无线通信系统中的收发器中产生功率控制命令的方法，其中所述方法包括以下步骤：在预定时间段开始时，计算质量测量参考值，在预定时间段期间重复生成， 在收发机处接收的信号的估计质量测量值; 根据估计的质量测量值和质量测量参考值产生功率控制命令; 以及在所述预定义时间段内从所述质量测量参考值生成经修改的质量测量参考值的次数。 产生功率控制命令的步骤包括将估计质量测量值与修改的质量测量参考值进行比较。 包括质量测量估计器，计算器，第一控制器，第二控制器和内环元件的功率控制单元被配置为实现该方法。
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12.发明授权Time-error and frequency-error correction in a multi-carrier wireless communications system 有权多载波无线通信系统中的时间误差和频率误差校正公开(公告)号：US07991378B2
公开(公告)日：2011-08-02
申请号：US12198366
申请日：2008-08-26
IPC分类号： H04B1/16
CPC分类号： H04L27/0014
摘要： Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end circuits configured to receive first and second wireless communication signals transmitted via first and second radio-frequency carriers at distinct first and second radio frequencies, respectively, a control processor configured to designate a master carrier signal and a slave carrier signal from among the received wireless communication signals, and a frequency error estimation circuit configured to estimate a first receiver frequency error using the received master carrier signal. The control processor is further configured to calculate a second receiver frequency error from the first receiver frequency error, for use in compensating one or more receiver processes performed on the slave carrier signal.
摘要翻译： 公开了用于在不同射频同时接收多个载波信号的无线接收机中的自动频率控制的方法和装置。 示例性无线设备包括至少第一和第二无线电前端电路，其被配置为分别接收在不同的第一和第二无线电频率处经由第一和第二无线电频率载波发送的第一和第二无线通信信号，控制处理器被配置为指定 来自所接收的无线通信信号中的主载波信号和从载波信号;以及频率误差估计电路，被配置为使用所接收的主载波信号来估计第一接收机频率误差。 控制处理器还被配置为从第一接收机频率误差计算第二接收机频率误差，用于补偿对从属载波信号执行的一个或多个接收机处理。
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公开(公告)号：US20110096680A1
公开(公告)日：2011-04-28
申请号：US12723255
申请日：2010-03-12
CPC分类号： H04L25/022 , H04B17/26 , H04B17/309 , H04B17/364 , H04B17/373 , H04L25/0222 , H04L25/0232
摘要： In one aspect, a method and apparatus derive channel quality estimates for given subcarriers in an OFDM signal, based on reference signal (RS) or other known-signal measurements made for another set of subcarriers. In at least one embodiment, a wireless communication apparatus implements a method whereby it is configured for receiving reference information on the first set of subcarriers; generating the first channel quality estimates in the frequency domain, based on the received reference information; computing a power delay profile for the first set of subcarriers; and determining the second channel quality estimates either by extrapolating from the first channel quality estimates or as an average of the first channel quality estimates, depending on a delay spread of the power delay profile.
摘要翻译： 一方面，一种方法和装置基于参考信号（RS）或对另一组子载波进行的其他已知信号测量，在OFDM信号中导出给定子载波的信道质量估计。 在至少一个实施例中，无线通信装置实现一种方法，由此被配置为在第一组子载波上接收参考信息; 基于所接收的参考信息，生成频域中的第一信道质量估计; 计算第一组子载波的功率延迟分布; 以及通过根据所述功率延迟分布的延迟扩展，从所述第一信道质量估计外推或者作为所述第一信道质量估计的平均来确定所述第二信道质量估计。
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公开(公告)号：US07680176B2
公开(公告)日：2010-03-16
申请号：US11412543
申请日：2006-04-27
申请人： Bengt Lindoff , Bo Bernhardsson , Jonas Ohlsson
发明人： Bengt Lindoff , Bo Bernhardsson , Jonas Ohlsson
IPC分类号： H04B1/69
CPC分类号： H04B1/712 , H04B2201/7071 , H04B2201/709727
摘要： According to a method and apparatus taught herein, a Rake receiver circuit selectively operates with or without colored interference compensation, in dependence on current operating conditions. For example, in one embodiment the Rake receiver circuit comprises one or more processing circuits that are configured to generate Rake combining weights in a first mode of operation as first combining weights calculated from channel estimates corresponding to a set of Rake signal fingers. In a second mode, the processing circuit(s) generate the Rake combining weights as compensated combining weights obtained by compensating the first combining weights with second combining weights calculated from colored interference estimates corresponding to a set of Rake probing fingers.
摘要翻译： 根据本文教导的方法和装置，Rake接收器电路根据当前的操作条件选择性地在有或没有有色干涉补偿的情况下操作。 例如，在一个实施例中，Rake接收机电路包括一个或多个处理电路，其被配置为以第一操作模式生成Rake组合权重作为从对应于一组Rake信号指的信道估计计算的第一组合权重。 在第二模式中，处理电路产生Rake组合权重作为通过用对应于一组耙探测手指的有色干涉估计计算的第二组合权重来补偿第一组合权重而获得的补偿组合权重。
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公开(公告)号：US07283791B2
公开(公告)日：2007-10-16
申请号：US10528736
申请日：2003-09-03
申请人： Johan Nilsson , Bo Bernhardsson
发明人： Johan Nilsson , Bo Bernhardsson
IPC分类号： H04B1/00
CPC分类号： H04W52/12 , H04W52/20 , H04W52/24 , H04W52/243
摘要： A telecommunications system for improving quality of service (QoS) to users via the implementation of an extended outer loop power control algorithm. A radio resource manager (RRM) operates to determine the number of channels allotted to users within a network at a certain time. The RRM implements the extended outer loop power control algorithm for each allotted channel, thus determining SIR reference values for each allotted channel the RRM ensures that the SIR reference value for any channel does not fall bellow a predetermined minimum value. The SIR reference value to be used for all channels in use is determined as the highest of all the calculated SIR reference values. The extended outer loop power control algorithm can be implemented at a mobile station level, base station level or radio network controller level.
摘要翻译： 一种用于通过实施扩展外环功率控制算法来改善用户服务质量（QoS）的电信系统。 无线电资源管理器（RRM）用于确定在特定时间内分配给网络中的用户的信道数量。 RRM为每个分配的信道实现扩展的外环功率控制算法，从而确定每个分配的信道的SIR参考值。 RRM确保任何通道的SIR参考值不会低于预定的最小值。 要用于所有使用的通道的SIR参考值被确定为所有计算的SIR参考值中的最高值。 扩展外环功率控制算法可以在移动台级，基站级或无线网络控制器级实现。
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16.发明授权Electronic devices having automatic frequency control systems and methods and computer program products for operating the same 有权具有自动频率控制系统和方法的电子设备以及用于操作该电子设备的计算机程序产品公开(公告)号：US07177602B2
公开(公告)日：2007-02-13
申请号：US10457913
申请日：2003-06-10
申请人： Mikael Ziren , Jonas Ohlsson , Tatjana Hrnjez , Elias Jonsson , Bo Bernhardsson
发明人： Mikael Ziren , Jonas Ohlsson , Tatjana Hrnjez , Elias Jonsson , Bo Bernhardsson
CPC分类号： H03J7/04 , H03J2200/02
摘要： An automatic frequency control (AFC) system in an electronic device is operated by using an AFC-algorithm component to determine a frequency error corresponding to a difference between a frequency of a signal output from a signal generator and a received signal frequency. The frequency error determined by the AFC-algorithm component is multiplied by a scaling factor, which is set to zero after an adjustment has been made to change a frequency of the signal output from the signal generator. The scaling factor is increased from zero to one over time. The scaled frequency error is used to determine whether to adjust the frequency of the signal output from the signal generator.
摘要翻译： 通过使用AFC算法组件来操作电子设备中的自动频率控制（AFC）系统，以确定与从信号发生器输出的信号的频率和接收到的信号频率之间的差异相对应的频率误差。 由AFC算法分量确定的频率误差乘以一个缩放因子，该比例因子在进行调整以改变从信号发生器输出的信号的频率之后被设置为零。 缩放因子随着时间的推移从零增加到一个。 缩放的频率误差用于确定是否调整从信号发生器输出的信号的频率。
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公开(公告)号：US08401128B2
公开(公告)日：2013-03-19
申请号：US10830387
申请日：2004-04-22
申请人： Bengt Lindoff , Bo Bernhardsson
发明人： Bengt Lindoff , Bo Bernhardsson
CPC分类号： H04L27/3809 , H04L27/00
摘要： A method and system are described for processing a received signal at a receiver in a communication system. The receiver includes a digital filter and automatic gain control means. Information indicating the frequency band of operation and the type of service of the received signal is received at the receiver from the communication system. The gain and filtering parameters of the receiver are set according to the received information. The received signal is processed at the receiver using the gain and filtering parameters. Optionally, a determination of whether the received signal contains adjacent channel interference above a predetermined allowable threshold may also be made and the determination may then be used in setting the gain and filtering parameters.
摘要翻译： 描述了用于在通信系统中的接收机处理接收信号的方法和系统。 接收机包括数字滤波器和自动增益控制装置。 在通信系统的接收机处接收表示接收信号的工作频带和接收信号的种类的信息。 根据接收到的信息设置接收机的增益和滤波参数。 使用增益和滤波参数在接收机处理接收到的信号。 可选地，还可以做出接收信号是否包含高于预定允许阈值的相邻信道干扰的确定，然后可以将该确定用于设置增益和滤波参数。
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公开(公告)号：US20100311346A1
公开(公告)日：2010-12-09
申请号：US12682857
申请日：2008-08-27
申请人： Bengt Lindoff , Bo Bernhardsson , Johan Nilsson
发明人： Bengt Lindoff , Bo Bernhardsson , Johan Nilsson
IPC分类号： H04B17/00
CPC分类号： H04B1/1081 , H04J11/0073 , H04L25/0224 , H04L25/06 , H04L27/2655 , H04L27/2656
摘要： Methods and devices for detecting a symbol in a radio channel and for cell identification are disclosed. A signal is received from the radio channel and the signal is filtered by a filter being responsive to the symbol thereby establishing a first signal. A second signal dependent on the noise floor of the received signal is established—whereby a time interval expected to include multi-path components being excluded or suppressed. A third signal being the ratio between the first signal and the noise floor is established, and the presence of the symbol is detected by detecting a peak in the third signal.
摘要翻译： 公开了用于检测无线电信道中的符号和用于小区识别的方法和装置。 从无线电信道接收信号，并且信号被响应于符号的滤波器滤波，从而建立第一信号。 建立取决于接收信号的本底噪声的第二信号，由此排除或抑制预期包括多路径分量的时间间隔。 确定第一信号和噪声本底之间的比值的第三信号，并且通过检测第三信号中的峰值来检测符号的存在。
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19.发明授权公开(公告)号：US07583760B2
公开(公告)日：2009-09-01
申请号：US10535479
申请日：2003-10-09
申请人： Bo Bernhardsson , Bengt Lindoff , Peter Malm
发明人： Bo Bernhardsson , Bengt Lindoff , Peter Malm
CPC分类号： H04L1/0045 , H04L1/18 , H04L25/067 , H04L27/38
摘要： Method of, and arrangement and device for, decoding a communications signal in a digital communications system, where the communications signal is modulated according to a modulation scheme including amplitude information; generating a likelihood value for a received communications signal, decoding the communications signal based on at least the generated likelihood value, providing a reliability indication of the amplitude information conveyed by the received communications signal wherein the step of generating the likelihood value further comprises generating the likelihood value on the basis of the provided reliability indication of the amplitude information.
摘要翻译： 根据包括幅度信息的调制方式对通信信号进行调制的数字通信系统中对通信信号进行解码的方法和装置和装置; 生成接收到的通信信号的似然值，至少基于所生成的似然值对通信信号进行解码，提供由接收的通信信号传送的幅度信息的可靠性指示，其中生成似然值的步骤进一步包括产生似然值 基于所提供的幅度信息的可靠性指示值。
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20.发明申请公开(公告)号：US20080212654A1
公开(公告)日：2008-09-04
申请号：US11908935
申请日：2006-03-07
申请人： Johan Nilsson , Bo Bernhardsson , Bengt Lindoff
发明人： Johan Nilsson , Bo Bernhardsson , Bengt Lindoff
IPC分类号： H04B1/707
CPC分类号： H04J13/0048 , H04B1/7075 , H04B1/7077 , H04B2201/70701 , H04J13/18
摘要： Disclosed is a method of generating a detection signal for detecting energy in a spread-spectrum signal, comprising: de-spreading the spread-spectrum signal by applying a predetermined spreading code to obtain a sequence of de-spread signal symbols (202A-202D); accumulating a number of said signal symbols to obtain a single detection signal. The accumulation includes: obtaining a first and a second subset of said de-spread signal symbols, wherein the symbols of the first subset have values that are known to the receiver or at least known to be the same for all symbols of the first subset, and wherein the symbols of the second subset have unknown values; coherently accumulating the symbols of the first subset to obtain a first partial detection signal (203A, 203B, 203C); non-coherently accumulating the symbols of the second subset to obtain a second partial detection signal (204A, 204B, 204C); and combining the first and second partial detection signals to obtain the single detection signal (208).
摘要翻译： 公开了一种生成用于检测扩频信号中的能量的检测信号的方法，包括：通过施加预定的扩展码对扩展频谱信号进行解扩，以获得解扩信号符号序列（202A-202 D）; 累积多个所述信号符号以获得单个检测信号。 积累包括：获得所述去扩展信号符号的第一和第二子集，其中第一子集的符号具有接收器已知的或至少已知对于第一子集的所有符号是相同的值， 并且其中所述第二子集的符号具有未知值; 相干地累积第一子集的符号以获得第一部分检测信号（203A，203B，203C）; 非相干地累积第二子集的符号以获得第二部分检测信号（204A，204B，204C）; 以及组合所述第一和第二部分检测信号以获得所述单个检测信号（208）。
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