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1. 发明申请

WO2013016395A3 DETECTION AND MITIGATION OF INTERFERENCE IN A RECEIVER 审中-公开
公开(公告)号：WO2013016395A3
公开(公告)日：2013-01-31
申请号：PCT/US2012/048083
申请日：2012-07-25
申请人： SPREADTRUM COMMUNICATIONS USA INC. , HAUB, David , XU, Zhigang , MALONE, Jarrett
发明人： HAUB, David , XU, Zhigang , MALONE, Jarrett
IPC分类号： H04B1/10
摘要： A novel receiver architecture optimizes receiver performance in the presence of interference. In various embodiments, power estimation circuits are used with variable selectivity to determine the exact nature of the interference and to optimize the performance correspondingly. The variable selectivity is achieved using stages of filtering with progressively narrower bandwidths. Also, the actual method of optimizing the receiver performance is novel compared to the prior art in that the gain settings and the baseband filter order (stages to be used) will be optimized based on the nature of the interference as determined by the power detector measurements. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.

2. 发明申请

WO2014008233A1 DETECTION AND MITIGATION OF INTERFERENCE BASED ON INTERFERENCE LOCATION 审中-公开
标题翻译：基于干扰位置的干扰检测和缓解
公开(公告)号：WO2014008233A1
公开(公告)日：2014-01-09
申请号：PCT/US2013/049027
申请日：2013-07-02
申请人： SPREADTRUM COMMUNICATIONS USA, INC. , HAUB, David , XU, Zhigang , MALONE, Jarrett
发明人： HAUB, David , XU, Zhigang , MALONE, Jarrett
IPC分类号： H03D1/04
CPC分类号： H04B1/10 , H04B1/1036 , H04B1/123 , H04B17/24 , H04B17/318
摘要： Embodiments include a novel receiver architecture to optimize receiver performance in the presence of interference. In various embodiments, the presence of interference is detected, and the relative frequency location of the interference is detected. The relative frequency location specifies whether the frequency of the interference is high side (above the desired signal, i.e., at a higher frequency) or low side (below the desired signal). The receiver is configured based on the detected interference and relative location thereof. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.
摘要翻译：实施例包括用于在存在干扰的情况下优化接收机性能的新型接收器架构。在各种实施例中，检测到干扰的存在，并且检测干扰的相对频率位置。相对频率位置指定干扰的频率是高侧（高于所需信号，即在较高频率）还是低侧（低于期望信号）。基于检测到的干扰及其相对位置来配置接收机。对于在干扰可变的动态和变化环境中操作的诸如蜂窝电话的设备，实施例有利地提供根据干扰来修改接收机的操作状态的能力。

3. 发明申请

WO2013062960A1 DETECTION AND MITIGATION OF INTERFERENCE IN A MULTIMODE RECEIVER USING VARIABLE BANDWIDTH FILTER 审中-公开
标题翻译：使用可变带宽滤波器检测和减轻多模接收器中的干扰
公开(公告)号：WO2013062960A1
公开(公告)日：2013-05-02
申请号：PCT/US2012/061469
申请日：2012-10-23
申请人： SPREADTRUM COMMUNICATIONS USA INC. , HAUB, David , XU, Zhigang , MALONE, Jarrett
发明人： HAUB, David , XU, Zhigang , MALONE, Jarrett
IPC分类号： H04B1/06
CPC分类号： H04B1/10 , H04B1/1036 , H04B17/318
摘要： Embodiments include a novel receiver architecture to optimize receiver performance in the presence of interference. In various embodiments, power estimation circuits are used to determine the exact nature of the interference and to optimize the performance correspondingly. Variable selectivity of at least one power estimation circuit is achieved using a filter with variable bandwidth, with power measurements taken using different bandwidth settings. Also, the actual method of optimizing the receiver performance is novel compared to the prior art in that the gain settings and the baseband filter order (stages to be used) will be optimized based on the nature of the interference as determined by the power detector measurements. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.
摘要翻译：实施例包括用于在存在干扰的情况下优化接收机性能的新型接收器架构。在各种实施例中，使用功率估计电路来确定干扰的确切性质并相应地优化性能。使用具有可变带宽的滤波器实现至少一个功率估计电路的可变选择性，并且使用不同的带宽设置进行功率测量。此外，与现有技术相比，优化接收机性能的实际方法是新颖的，因为增益设置和基带滤波器顺序（待使用的级）将基于由功率检测器测量确定的干扰的性质来优化。对于在干扰可变的动态和变化环境中操作的诸如蜂窝电话的设备，实施例有利地提供根据干扰来修改接收机的操作状态的能力。

4. 发明申请

WO2014105273A1 METHOD AND APPARATUS FOR TRANSMITTER OPTIMIZATION BASED ON ALLOCATED TRANSMISSION BAND 审中-公开
标题翻译：基于分配传输带的发射机优化方法与装置
公开(公告)号：WO2014105273A1
公开(公告)日：2014-07-03
申请号：PCT/US2013/069434
申请日：2013-11-11
申请人： SPREADTRUM COMMUNICATIONS USA, INC.
发明人： HAUB, David
IPC分类号： H04B1/18 , H04L27/06
CPC分类号： H04B1/0475 , H04L5/00 , H04L5/0007 , H04L5/0064 , H04L5/0085 , H04W24/02 , H04W72/0453 , H04W72/082 , H04W88/10
摘要： First and second inputs are received. The first input indicates a frequency offset of a frequency band allocated for signal transmission. The said allocated band is a subband of a total band available for transmission. The second input indicates a bandwidth of the allocated band. One or more filters of a transmitter of a communications system are controlled to operate cumulatively in a lowpass filtering mode, wherein the highest frequency in a pass band in the lowpass filtering mode is less than the highest frequency of the total band available for transmission. A signal is filtered using the filter(s).
摘要翻译：接收第一和第二输入。第一输入指示分配用于信号传输的频带的频率偏移。所述分配的频带是可用于传输的总频带的子带。第二输入指示所分配频带的带宽。控制通信系统的发射器的一个或多个滤波器以低通滤波模式累积运行，其中低通滤波模式中的通带中的最高频率小于可用于传输的总频带的最高频率。使用滤波器对信号进行滤波。

5. 发明申请

WO2014088858A1 METHOD AND APPARATUS FOR SIGNAL SCANNING FOR MULTIMODE RECEIVER 审中-公开
标题翻译：多模接收机信号扫描的方法和装置
公开(公告)号：WO2014088858A1
公开(公告)日：2014-06-12
申请号：PCT/US2013/071584
申请日：2013-11-25
申请人： SPREADTRUM COMMUNICATIONS USA, INC.
发明人： HAUB, David , XU, Zhigang
IPC分类号： H04W48/16
CPC分类号： H04W48/16 , H04W88/06
摘要： In a signal processing method, an input signal is provided at an input to a receiver. A bandwidth of the receiver is controlled to a predetermined wideband setting. For band in a plurality of frequency bands, the input signal is processed at the receiver with a mixer, an amplifier, and a filter, to generate a first processed signal, and a power spectral density of the processed signal is generated over that frequency band, to provide a frequency domain signal for that frequency band. Based on the frequency domain signals corresponding to each frequency band in the plurality of frequency bands, a frequency domain representation of the processed signal is reconstructed over a reconstruction band having a bandwidth larger than the predetermined wideband setting. Based on the reconstructed frequency domain representation, a spectral component is identified corresponding to at least one cellular telephony access mode.
摘要翻译：在信号处理方法中，在接收机的输入处提供输入信号。接收机的带宽被控制到预定的宽带设置。对于多个频带中的频带，输入信号在接收机处用混频器，放大器和滤波器处理，以产生第一处理信号，并且在该频带上产生处理信号的功率谱密度，以提供该频带的频域信号。基于与多个频带中的每个频带相对应的频域信号，在具有大于预定宽带设置的带宽的重构频带上重构经处理信号的频域表示。基于重构的频域表示，对应于至少一个蜂窝电话接入模式来识别频谱分量。

6. 发明申请

WO2017176778A1 TRANSCEIVER SYSTEM SUPPORTING TRANSMITTER SELF CALIBRATION AND METHODS OF PERFORMING THE SAME 审中-公开
标题翻译：支持发射机自校准的收发机系统及其执行方法
公开(公告)号：WO2017176778A1
公开(公告)日：2017-10-12
申请号：PCT/US2017/025973
申请日：2017-04-04
申请人： SPREADTRUM COMMUNICATIONS USA INC.
发明人： HAUB, David , CHRISTENSEN, Lon , WANG, Zebin
IPC分类号： H04B7/00
CPC分类号： H04W52/245 , H04B10/293 , H04B10/2931 , H04B17/0085 , H04B17/14 , H04B17/318 , H04W52/00
摘要： A self-calibrating transceiver includes a transmitter chain, a receiver chain, a base band processor, and a calibration control state machine. The state machine is in electrical communication with the transmitter chain, the receiver chain, and the base band processor, and is configured for enabling the receiver chain and setting the receiver chain and the transmitter chain to corresponding frequencies. The state machine stores one or more transmitter power and power amplifier gain mode settings, and for each setting, sets the transmitter gain and power amplifier gain mode. The transmitter chain transmits a signal, the receiver chain receives the transmitted signal, and the baseband processor measures a received signal strength indicator (RSSI) of the received signal. The state machine further adjusts the transmitter output power based on the measured RSSI.
摘要翻译：自校准收发器包括发射器链，接收器链，基带处理器和校准控制状态机。状态机与发射机链，接收机链和基带处理器进行电通信，并被配置用于启用接收机链并将接收机链和发射机链设置为相应的频率。状态机存储一个或多个发射机功率和功率放大器增益模式设置，并为每个设置设置发射机增益和功率放大器增益模式。发射机链发射信号，接收机链接收发射信号，并且基带处理器测量接收信号的接收信号强度指示（RSSI）。状态机根据测量的RSSI进一步调整发射机输出功率。

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