公开(公告)号：US08903029B2

公开(公告)日：2014-12-02

申请号：US13398639

申请日：2012-02-16

申请人： Lee M. Savage ,  Ronak D. Shah

发明人： Lee M. Savage ,  Ronak D. Shah

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H03F3/189 ,  H03F2200/294 ,  H03G3/3036 ,  H04B1/1027

摘要： A method for minimizing unwanted signal harmonics from at least one signal in a channel received through a monobit receiver, comprising: conditioning (312) the channel, determining (318, 320) relative strength between two frequency components of a signal within the channel, and using that relative strength (322) to control (324) how the channel is conditioned. In other embodiments, a system for receiving signals in a channel and minimizing unwanted harmonics from those signals has a monobit receiver (104, 204), a channel conditioner (124, 228, 230), and a feedback driver (114, 118, 208, 216, 218, 224) determining relative strength (116, 122, 220, 222, 226) between two frequency components of a received signal and using that determination to control the channel conditioner in a way that urges the relative strength toward a desired value.

摘要翻译： 一种用于从通过单轨接收机接收的信道中的至少一个信号最小化不想要的信号谐波的方法，包括：调整（312）信道，确定信道内的信号的两个频率分量之间的相对强度，以及 使用相对强度（322）来控制（324）如何调节通道。 在其他实施例中，用于在信道中接收信号并使那些信号中的不需要的谐波最小化的系统具有单路接收机（104,204），信道调节器（124,228,230）和反馈驱动器（114,118,208） ，216,218,224）确定接收信号的两个频率分量之间的相对强度（116,122,220,222,226），并且使用该确定来控制信道调节器以将相对强度推向期望值的方式 。

公开(公告)号：US08855253B2

公开(公告)日：2014-10-07

申请号：US13488965

申请日：2012-06-05

申请人： Suresh Kalyanasundaram ,  Shirish Nagaraj ,  Raghavendra M. Ramakrishna

发明人： Suresh Kalyanasundaram ,  Shirish Nagaraj ,  Raghavendra M. Ramakrishna

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04L1/1829

摘要： Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.

摘要翻译： 公开了执行以下技术的装置，方法和程序产品：在包括第一和第二级的接收机中，每个级至少解码对应于用户设备的信息，其中第二级仅在第一级完成解码时执行解码， 一个失败，预测用户设备的第二阶段执行的解码是否完成通过或失败; 并且在第二阶段完成之前，向用户设备发送预测通过或失败的指示。

公开(公告)号：US08811198B2

公开(公告)日：2014-08-19

申请号：US12256234

申请日：2008-10-22

申请人： Naga Bhushan ,  Avneesh Agrawal

发明人： Naga Bhushan ,  Avneesh Agrawal

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04W4/00 ,  H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H04B1/10 ,  H04W40/00 ,  H04B15/00 ,  H04B1/00 ,  H04B1/04 ,  H04W72/08 ,  H04W84/04 ,  H04W72/04 ,  H04W88/04 ,  H04W52/40 ,  H04W52/14

CPC分类号： H04W72/082 ,  H04W52/146 ,  H04W52/40 ,  H04W72/0406 ,  H04W84/045 ,  H04W88/04

摘要： Systems and methodologies are described that facilitate employing interference-overload indications to generate pilot strength reports that can be leveraged to mitigate reverse link interference. An affected base station can send interference-overload indications when experiencing a strong interference/jamming scenario due to reverse link transmission by an offending access terminal. The offending access terminal can monitor interference-overload indications from the affected base station (e.g., although the affected base station can be excluded from an active set of the offending access terminal) and send a pilot strength report to a serving base station in response. The serving base station can receive the interference induced pilot strength report and command the offending access terminal not to transmit on certain channel resources (e.g., time, frequency, spatial, . . . ); thus, the affected base station can use these resources to schedule transmission(s) by access terminal(s) served thereby.

摘要翻译： 描述了系统和方法，其便于采用干扰过载指示来产生可用于减轻反向链路干扰的导频强度报告。 由于受到违规接入终端的反向链路传输，受影响的基站可能会在遇到强干扰/干扰情况时发送干扰过载指示。 违规接入终端可以监测来自受影响的基站的干扰过载指示（例如，尽管受影响的基站可以从有罪的接入终端集合中排除），并且响应地向服务基站发送导频强度报告。 服务基站可以接收干扰诱导的导频强度报告，并指令违规接入终端不在某些信道资源（例如，时间，频率，空间等）上进行发射; 因此，受影响的基站可以使用这些资源来调度由其服务的接入终端的传输。

公开(公告)号：US08724755B2

公开(公告)日：2014-05-13

申请号：US13237080

申请日：2011-09-20

申请人： Toshiyuki Nakanishi ,  Daisuke Takeda ,  Tatsuhisa Furukawa

发明人： Toshiyuki Nakanishi ,  Daisuke Takeda ,  Tatsuhisa Furukawa

IPC分类号： H03D1/06 ,  H03D11/04 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04L25/03114 ,  H04L25/0202

摘要： A receiving apparatus receives a digital modulation signal. The receiving apparatus has a receiving part for down-converting the digital modulation signal to a baseband signal and to obtain channel estimates, a channel estimation part for estimating a multi-path channel, a first replica generation part for generating a first replica, based on the channel estimates obtained by the channel estimation part, a first replica removal part for removing the first replica from a target frame in the baseband signal, a nulling part for forcefully nulling he baseband signal for at least a portion of the time period where an inter-frame interference occurs due to a delay wave having a delay time longer than the known signal, and a cyclic-addition part for performing cyclic-addition between a front side portion and a rear side portion in the target frame, including the portion nulled by the nulling part.

摘要翻译： 接收装置接收数字调制信号。 接收装置具有接收部分，用于将数字调制信号下变频为基带信号并获得信道估计，用于估计多径信道的信道估计部分，用于生成第一副本的第一副本生成部分，基于 由信道估计部分获得的信道估计，用于从基带信号中的目标帧中去除第一副本的第一副本去除部分，用于在时间段的至少一部分强制将其基带信号强制归零的归零部分， 由于具有比已知信号更长的延迟时间的延迟波而发生帧干扰，以及用于在目标帧中的前侧部分和后侧部分之间执行循环加法的循环加法部分，包括被零 归零部分。

公开(公告)号：US08724741B2

公开(公告)日：2014-05-13

申请号：US12572680

申请日：2009-10-02

申请人： Gregory E. Bottomley ,  Yi-Pin Eric Wang

发明人： Gregory E. Bottomley ,  Yi-Pin Eric Wang

IPC分类号： H04L27/00 ,  H04L27/06 ,  H03D1/06

CPC分类号： H04B17/309 ,  H04B17/26 ,  H04L2025/03426

摘要： The quality of a received signal in a non-linear receiver is estimated using a coupling matrix G or Q that describes the interaction of symbols in the received signal with other symbols and/or how the impairment (noise and interference) interacts in the received signal. The coupling matrix is also useful for joint detection. The signal quality estimate may include, e.g., the minimum eigenvalue, and other functions, such as the determinant and trace of the coupling matrix. When G or Q varies with each block, as in CDMA systems employing longcode scrambling, a representative matrix can be used, such as a matrix of RMS values or average magnitudes of real and imaginary components. The signal quality estimate can be expressed as a bit error rate (BER).

摘要翻译： 使用描述接收信号中的符号与其他符号的相互作用和/或接收信号中的损害（噪声和干扰）如何相互作用的耦合矩阵G或Q来估计非线性接收机中的接收信号的质量 。 耦合矩阵对于联合检测也是有用的。 信号质量估计可以包括例如最小特征值和其他函数，诸如耦合矩阵的行列式和轨迹。 当G或Q随每个块变化时，如在使用长码扰码的CDMA系统中，可以使用代表性矩阵，例如RMS值矩阵或实部和虚部分量的平均幅度。 信号质量估计可以表示为误码率（BER）。

公开(公告)号：US08660224B2

公开(公告)日：2014-02-25

申请号：US13859582

申请日：2013-04-09

申请人： Broadcom Corporation

发明人： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter Van Rooyen ,  Pieter Roux

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04B7/0417 ,  H04B7/0697 ,  H04L1/0656 ,  H04L25/0204 ,  H04L25/0214 ,  H04L25/0244 ,  H04L25/025 ,  H04L25/03019 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03726 ,  H04L2025/03808

摘要： Certain aspects of the method may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas at a base station. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of spatially multiplexed communication signals. A plurality of pre-equalization weights may be generated based on the generated plurality of vectors of baseband combined channel estimates. The received plurality of spatially multiplexed communication signals may be modified based on the generated plurality of pre-equalization weights. At least a portion of the generated plurality of pre-equalization weights may be fed back to the base station for modifying subsequently transmitted spatially multiplexed communication signals which are transmitted from at least a portion of the plurality of transmit antennas at the base station.

摘要翻译： 该方法的某些方面可以包括在基站处从多个发射天线接收多个空间复用的通信信号。 可以基于所接收的多个空间复用通信信号的相位旋转来生成基带组合信道估计的多个向量。 可以基于所生成的多个基带组合信道估计向量来生成多个预均衡权重。 可以基于所生成的多个预均衡权重来修改所接收的多个空间复用的通信信号。 所生成的多个预均衡权重中的至少一部分可以反馈给基站，以便修改在基站处从多个发射天线的至少一部分发送的随后发送的空间复用的通信信号。

公开(公告)号：US08660222B2

公开(公告)日：2014-02-25

申请号：US13253073

申请日：2011-10-05

申请人： Kazuyuki Ozaki

发明人： Kazuyuki Ozaki

IPC分类号： H03D1/06

CPC分类号： H04L25/03821 ,  H04L1/206

摘要： A wireless reception device includes a determination section to determine, based on reception power of each of subcarriers of a multicarrier signal and a transfer function of each of the subcarriers, a value relating to an interference component between subcarriers, the interference component being from another subcarrier for each of the subcarriers, with respect to each of the subcarriers, and a removal section to remove the interference component from each of the subcarriers, based on the value relating to the interference component.

摘要翻译： 无线接收装置包括：判定部，根据多载波信号的各子载波的接收功率和每个副载波的传递函数，确定与副载波之间的干扰成分有关的值，干扰成分来自另一副载波 基于与干扰分量相关的值，针对每个副载波，对于每个子载波，以及去除部分，以从每个子载波中去除干扰分量。

公开(公告)号：US08630378B2

公开(公告)日：2014-01-14

申请号：US11535848

申请日：2006-09-27

申请人： Brian Clarke Banister

发明人： Brian Clarke Banister

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04B1/7107

摘要： Techniques for performing interference cancellation in a wireless (e.g., CDMA) communication system are described. In one aspect, per-bin power estimates for multiple orthogonal bins are derived by estimating at least two components of these power estimates. The components may include, e.g., channel gain, noise and interference, and bin gain. Interference cancellation is performed based on the per-bin power estimates. In another aspect, interference cancellation is performed in multiple stages with fast tracking. A total power estimate and per-bin power estimates are derived for a first stage. A total power estimate is derived for a second stage. Per-bin power estimates are also derived for the second stage based on the total power estimates for the first and second stages and the per-bin power estimates for the first stage. Interference cancellation is performed for each stage based on the per-bin power estimates for that stage.

摘要翻译： 描述了在无线（例如CDMA）通信系统中执行干扰消除的技术。 在一个方面，通过估计这些功率估计的至少两个分量来导出多个正交区块的每箱功率估计。 这些组件可以包括例如信道增益，噪声和干扰以及信道增益。 基于每箱功率估计执行干扰消除。 在另一方面，通过快速跟踪在多个阶段执行干扰消除。 第一阶段得出总功率估计和每箱功率估计。 导出第二阶段的总功率估计。 基于第一阶段和第二阶段的总功率估计以及第一阶段的每个二进制数功率估计，也为第二阶段导出每斌功率估计。 基于该阶段的每箱功率估计，针对每个阶段执行干扰消除。

公开(公告)号：US08625725B2

公开(公告)日：2014-01-07

申请号：US13423585

申请日：2012-03-19

申请人： Ni Zeng ,  Dasong Lin

发明人： Ni Zeng ,  Dasong Lin

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/00 ,  H04L25/08

CPC分类号： H04L25/0292

摘要： A LIN receiver circuit includes filtering circuitry receiving an input signal and producing a filtered signal, a first comparator comparing the filtered signal to a threshold voltage, and a driver block producing the receiver output signal. The receiver circuit further includes an input comparator, signal-adjusting circuitry, and deglitching circuitry. The input comparator detects a low voltage on the input signal, and the signal-adjusting circuitry drives the filtered signal to a particular value to shorten the length of a glitch at the output of the first comparator. Meanwhile, the deglitching circuitry detects and removes the glitch to produce a deglitcher output signal. The deglitcher output signal is received by the driver block, which outputs the receiver output signal, wherein the receiver output signal contains no glitches, and is delayed by no more than 7.5 μs, thus providing immunity to ISO pulses.

摘要翻译： LIN接收器电路包括接收输入信号并产生滤波信号的滤波电路，将滤波后的信号与阈值电压进行比较的第一比较器和产生接收器输出信号的驱动器块。 接收器电路还包括输入比较器，信号调节电路和去角化电路。 输入比较器检测输入信号的低电压，并且信号调节电路将滤波后的信号驱动到特定值以缩短第一比较器输出端的毛刺长度。 同时，除冰电路检测并去除毛刺以产生脱色器输出信号。 输出信号由驱动器块接收，驱动器块输出接收器输出信号，其中接收器输出信号不含毛刺，延迟不大于7.5微米，从而提供对ISO脉冲的抗扰度。

公开(公告)号：US08611482B2

公开(公告)日：2013-12-17

申请号：US13073077

申请日：2011-03-28

申请人： Lizhi Zhong

发明人： Lizhi Zhong

IPC分类号： H03D1/06 ,  H03K5/01

CPC分类号： H04L25/03006 ,  H04L25/03057 ,  H04L25/03082 ,  H04L2025/03356

摘要： An apparatus comprising an inter symbol interference (ISI) cancellation circuit and a detector circuit. The inter symbol interference (ISI) cancellation circuit may be configured to minimize ISI at data sampling and crossing sampling points in a symbol interval of an input signal. The detector circuit may be configured to generate data samples and crossing samples at the data sampling and crossing sampling points in the symbol interval of the input signal.

摘要翻译： 一种包括符号间干扰（ISI）消除电路和检测器电路的装置。 符号间干扰（ISI）消除电路可以被配置为使数据采样时的ISI最小化并且在输入信号的符号间隔中交叉采样点。 检测器电路可以被配置为在输入信号的符号间隔中的数据采样和交叉采样点处产生数据采样并交叉采样。