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21. 发明申请

US20110237199A1 METHODS FOR CALIBRATING RADIO-FREQUENCY RECEIVERS USING CODE DIVISION MULTIPLE ACCESS TEST EQUIPMENT 有权
标题翻译：使用代码段多功能访问测试设备校准无线电频率接收机的方法
公开(公告)号：US20110237199A1
公开(公告)日：2011-09-29
申请号：US12732108
申请日：2010-03-25
申请人： Vishwanath Venkataraman , Justin Gregg , Wassim El-Hassan
发明人： Vishwanath Venkataraman , Justin Gregg , Wassim El-Hassan
IPC分类号： H04B17/00
CPC分类号： H04B17/327 , H04B17/24
摘要： Wireless test equipment may be used to perform over-the-air testing of user equipment. The user equipment may contain an antenna and a receiver. The wireless test equipment may contain a call box that performs network-level testing by sending and receiving protocol-compliant network messages. The call box may transmit a radio-frequency test signal at a predetermined power. The antenna in the user equipment may receive the radio-frequency test signal and may provide the received radio-frequency test signal to the input of the receiver. The call box may send a network message such as a code-division-multiple-access intercode handover command to the user equipment to direct the user equipment to measure the received radio-frequency test signal power at the input of the receiver. The measured power may be transmitted to the call box as part of a pilot measurement message indicator, using an intercode handover command, or using other network messages.
摘要翻译：无线测试设备可用于对用户设备进行空中测试。用户设备可以包含天线和接收机。无线测试设备可以包含通过发送和接收符合协议的网络消息来执行网络级测试的呼叫箱。呼叫箱可以以预定功率发送射频测试信号。用户设备中的天线可以接收射频测试信号，并且可以将接收到的射频测试信号提供给接收机的输入。呼叫箱可以向用户设备发送诸如码分多址交换码切换命令的网络消息，以引导用户设备在接收机的输入端测量所接收的射频测试信号功率。测量的功率可以作为导频测量消息指示符的一部分使用码间切换命令或使用其他网络消息来发送到呼叫箱。

22. 发明申请

US20110124364A1 WIRELESS TRANSMITTER CALIBRATION USING ABSOLUTE POWER REQUESTS 有权
标题翻译：使用绝对电源要求的无线发射机校准
公开(公告)号：US20110124364A1
公开(公告)日：2011-05-26
申请号：US12625534
申请日：2009-11-24
申请人： David A. Donovan , Justin Gregg
发明人： David A. Donovan , Justin Gregg
IPC分类号： H04B7/005
CPC分类号： H04B17/13
摘要： Test systems are provided for performing testing and calibration operations on wireless circuitry in electronic devices. The electronic devices may include cellular telephones and other portable electronic devices. Wireless circuitry in a device may include a radio-frequency transceiver that is controlled based on radio-frequency transceiver control signals. The wireless circuitry may also include power amplifier circuitry. The power amplifier circuitry may receive radio-frequency signals from the transceiver and may produce correspondingly amplified radio-frequency output signals for wireless transmission with an antenna. The power amplifier circuitry may be powered by a bias voltage. The test systems may provide the electronic device with a transmit power request that directs the electronic device to produce a desired output power. The test systems may measure the actual resulting power. After sufficient measurements have been made, the test systems may calibrate the transceiver and power amplifier settings.
摘要翻译：提供测试系统用于在电子设备中的无线电路上执行测试和校准操作。电子设备可以包括蜂窝电话和其他便携式电子设备。设备中的无线电路可以包括基于射频收发器控制信号来控制的射频收发器。无线电路还可以包括功率放大器电路。功率放大器电路可以从收发器接收射频信号，并且可以产生用于与天线的无线传输的相应地放大的射频输出信号。功率放大器电路可以由偏置电压供电。测试系统可以向电子设备提供引导电子设备产生期望的输出功率的发射功率请求。测试系统可以测量实际产生的功率。经过充分的测量，测试系统可以校准收发器和功率放大器设置。

23. 发明申请

US20110103235A1 WIRELESS LOCAL AREA NETWORK TEST SYSTEM WITH FORCED TRANSMIT RATES DURING PROTOCOL-BASED TESTING 有权
标题翻译：基于协议测试的无线局域网测试系统与强制发送速率
公开(公告)号：US20110103235A1
公开(公告)日：2011-05-05
申请号：US12913718
申请日：2010-10-27
申请人： Anh Luong , Justin Gregg
发明人： Anh Luong , Justin Gregg
IPC分类号： H04L12/26 , H04W84/02
CPC分类号： H04W24/06 , H04L43/024 , H04L43/16 , H04L43/18 , H04W84/12
摘要： A system for performing wireless local area network testing of wireless devices may include a wireless local area network tester and a device under test. The tester and device under test may communicate over a wireless link. To ensure that the tester accurately analyzes test data, a data rate table is used that specifies fixed data transmission rates to be used by the device under test under both high-quality link conditions and low-quality link conditions. This forces the device under test to transmit control packets at the same high data rate during packet loopback testing, regardless of link quality. When the captured control packets are analyzed at the tester, both low-link-quality data and high-link-quality data may be analyzed using a common test template, ensuring accurate results.
摘要翻译：用于执行无线设备的无线局域网测试的系统可以包括无线局域网测试器和被测设备。被测试器和被测设备可以通过无线链路进行通信。为了确保测试人员准确分析测试数据，使用了一个数据速率表，用于指定待测设备在高质量链路条件和低质量链路条件下使用的固定数据传输速率。无论链路质量如何，都会强制被测设备在分组环回测试期间以相同的高数据速率发送控制数据包。当测试者分析捕获的控制数据包时，可以使用通用测试模板分析低链路质量数据和高链路质量数据，确保准确的结果。

24. 发明授权

US08903326B2 Simultaneous downlink testing for multiple devices in radio-frequency test systems 有权
标题翻译：在射频测试系统中同时进行多个设备的下行链路测试
公开(公告)号：US08903326B2
公开(公告)日：2014-12-02
申请号：US13018348
申请日：2011-01-31
申请人： Justin Gregg , Adil Syed , Vishwanath Venkataraman
发明人： Justin Gregg , Adil Syed , Vishwanath Venkataraman
IPC分类号： H04B17/00 , H04W24/06 , H04L12/26
CPC分类号： H04W24/06 , H04L43/0882 , H04L43/50
摘要： A test station may include a test host, a signal generator, and a test chamber. Multiple devices under test (DUTs) may be placed in the test chamber during production testing. Radio-frequency signals may be conveyed from the signal generator to the multiple DUTs using a conducted arrangement through a radio-frequency signal splitter circuit or using a radiated arrangement through an antenna in the test chamber. The signal generator may broadcast initialization downlink signals. The multiple DUTs may synchronize with the initialing downlink signals. The signal generator may broadcast test downlink signals at a target output power level. The multiple DUTs may receive the test downlink signals and compute a corresponding downlink transmission performance level based on the received downlink signals. A given DUT is marked as a passing DUT if the downlink performance level is satisfactory. A given DUT may be retested if the downlink performance level fails design criteria.
摘要翻译：测试台可以包括测试主机，信号发生器和测试室。在生产测试期间，可以将多个待测设备（DUT）放置在测试室中。射频信号可以使用通过射频信号分离器电路的传导装置或使用通过测试室中的天线的辐射装置从信号发生器传送到多个DUT。信号发生器可以广播初始化下行链路信号。多个DUT可以与初始化下行链路信号同步。信号发生器可以以目标输出功率电平广播测试下行链路信号。多个DUT可以接收测试下行链路信号，并且基于所接收的下行链路信号来计算相应的下行链路传输性能等级。如果下行链路性能水平令人满意，给定的DUT被标记为通过DUT。如果下行链路性能级别失败设计标准，则可以重新测试给定的DUT。

25. 发明授权

US08600309B2 Methods for dynamic calibration of over-the-air path loss in over-the-air radio-frequency test systems 有权
标题翻译：用于空中无线射频测试系统中空中路径损耗的动态校准方法
公开(公告)号：US08600309B2
公开(公告)日：2013-12-03
申请号：US12872711
申请日：2010-08-31
申请人： Thomas W. Chang , Justin Gregg
发明人： Thomas W. Chang , Justin Gregg
IPC分类号： H04B17/00
CPC分类号： H04B17/0085 , H04B17/21 , H04B17/24 , H04B17/309
摘要： Calibration equipment for calibrating multiple test stations in a test system is provided. Each test station may include a test unit, a test chamber with an over-the-air (OTA) antenna, and a radio-frequency (RF) cable that connects the test unit to the test chamber. Reference devices under test (DUTs) may be used to calibrate the OTA path loss of each test station at desired frequencies. Once calibrated, the test chambers may be used during production testing to test factory DUTs to determine whether a particular production DUT is a passing or failing DUT according to pass/fail criteria. A running average path loss value may be constantly updated based on path loss values measured using the reference DUTs and the passing production DUTs. Dynamically updating the path loss value using this statistical approach can properly track the behavior of each test station as operating conditions shift over time.
摘要翻译：提供了用于在测试系统中校准多个测试站的校准设备。每个测试站可以包括测试单元，具有空中（OTA）天线的测试室和将测试单元连接到测试室的射频（RF）电缆。被测参考设备（DUT）可用于校准每个测试站在所需频率下的OTA路径损耗。一旦校准，在生产测试期间可以使用测试室来测试工厂DUT，以根据通过/失败标准来确定特定生产DUT是否是通过或失败的DUT。可以基于使用参考DUT和经过的生产DUT测量的路径损耗值来不断更新运行平均路径损耗值。使用这种统计方法动态地更新路径损耗值可以随着时间的推移随着操作条件的变化而正确地跟踪每个测试站的行为。

26. 发明授权

US08583062B2 Methods for determining optimum power supply voltages for radio-frequency power amplifier circuitry 有权
标题翻译：确定射频功率放大器电路的最佳电源电压的方法
公开(公告)号：US08583062B2
公开(公告)日：2013-11-12
申请号：US12761219
申请日：2010-04-15
申请人： David A. Donovan , Justin Gregg , Vishwanath Venkataraman
发明人： David A. Donovan , Justin Gregg , Vishwanath Venkataraman
IPC分类号： H04B1/04
CPC分类号： H03F3/24 , H03F1/0216 , H03F3/189 , H03F2200/27 , H03F2200/451 , H03F2200/504
摘要： Electronic devices with wireless communications capabilities are provided. The electronic device may include storage and processing circuitry, power amplifier circuitry, power supply circuitry, etc. The storage and processing circuitry may direct the power amplifier circuitry to operate using a desired gain mode, in a particular radio channel, and at a given output power level. The power supply circuitry may bias the power amplifier circuitry with a power supply voltage. The performance of the power amplifier circuitry may be characterized by an adjacent channel leakage ratio (ACLR) margin. The power consumption of the power amplifier circuitry may be characterized by a current savings ratio. A cost function may be calculated by taking the product of the ACLR margin and current savings ratio. A minimum point for each cost function curve may be determined. It is desirable to bias the power amplifier circuitry with a supply voltage corresponding to the minimum point.
摘要翻译：提供具有无线通信功能的电子设备。电子设备可以包括存储和处理电路，功率放大器电路，电源电路等。存储和处理电路可以引导功率放大器电路在特定无线电信道中以及在给定输出处使用期望的增益模式进行操作能量等级。电源电路可以用功率电源电压来偏置功率放大器电路。功率放大器电路的性能可以由相邻的信道泄漏比（ACLR）裕度来表征。功率放大器电路的功耗可以通过电流节省率来表征。可以通过采用ACLR余量和当前节省比率的乘积来计算成本函数。可以确定每个成本函数曲线的最小点。期望用功率放大器电路对与最小点相对应的电源电压进行偏置。

27. 发明授权

US08437793B2 Wireless transmitter calibration using absolute power requests 有权
标题翻译：使用绝对电源请求的无线发射机校准
公开(公告)号：US08437793B2
公开(公告)日：2013-05-07
申请号：US12625534
申请日：2009-11-24
申请人： David A. Donovan , Justin Gregg
发明人： David A. Donovan , Justin Gregg
IPC分类号： H04Q7/32
CPC分类号： H04B17/13
摘要： Test systems are provided for performing testing and calibration operations on wireless circuitry in electronic devices. The electronic devices may include cellular telephones and other portable electronic devices. Wireless circuitry in a device may include a radio-frequency transceiver that is controlled based on radio-frequency transceiver control signals. The wireless circuitry may also include power amplifier circuitry. The power amplifier circuitry may receive radio-frequency signals from the transceiver and may produce correspondingly amplified radio-frequency output signals for wireless transmission with an antenna. The power amplifier circuitry may be powered by a bias voltage. The test systems may provide the electronic device with a transmit power request that directs the electronic device to produce a desired output power. The test systems may measure the actual resulting power. After sufficient measurements have been made, the test systems may calibrate the transceiver and power amplifier settings.
摘要翻译：提供测试系统用于在电子设备中的无线电路上执行测试和校准操作。电子设备可以包括蜂窝电话和其他便携式电子设备。设备中的无线电路可以包括基于射频收发器控制信号来控制的射频收发器。无线电路还可以包括功率放大器电路。功率放大器电路可以从收发器接收射频信号，并且可以产生用于与天线的无线传输的相应地放大的射频输出信号。功率放大器电路可以由偏置电压供电。测试系统可以向电子设备提供引导电子设备产生期望的输出功率的发射功率请求。测试系统可以测量实际产生的功率。经过充分的测量，测试系统可以校准收发器和功率放大器设置。

28. 发明申请

US20120231744A1 SIMULTANEOUS DOWNLINK SENSITIVITY TESTING FOR MULTIPLE MODULATION SCHEMES IN A WIRELESS TEST SYSTEM 有权
标题翻译：无线测试系统中多个调制方案的同时下行灵敏度测试
公开(公告)号：US20120231744A1
公开(公告)日：2012-09-13
申请号：US13044844
申请日：2011-03-10
申请人： Justin Gregg , Adil Syed , Tomoki Takeya
发明人： Justin Gregg , Adil Syed , Tomoki Takeya
IPC分类号： H04B17/00
CPC分类号： H04B17/309 , H04B17/29 , H04W52/143
摘要： A test station may include a test host, a tester, and a test chamber. Multiple devices under test (DUTs) may be placed in the test chamber during device characterization operations. Radio-frequency signals may be conveyed from the tester to the multiple DUTs using a radiated arrangement through an antenna in the test chamber. The tester may broadcast downlink test signals in parallel to the multiple DUTs. The DUTs may simultaneously synchronize with the downlink test signals and measure radio-frequency performance levels while receiving the downlink test signals. The test host may direct the tester to gradually lower its output power level. The DUTs may be used to determine downlink sensitivity by monitoring the measured radio-frequency performance levels as the output power level of the tester is lowered. Simultaneously downlink sensitivity testing may be performed for multiple modulation schemes and data rates for any communications protocol.
摘要翻译：测试台可以包括测试主机，测试器和测试室。在设备表征操作期间，可以将多个被测设备（DUT）放置在测试室中。射频信号可以使用辐射布置通过测试室中的天线从测试仪传送到多个DUT。测试者可以并行地向多个DUT广播下行链路测试信号。 DUT可以同时与下行链路测试信号同步并且在接收下行链路测试信号的同时测量射频性能水平。测试主机可以指示测试仪逐渐降低其输出功率电平。当测试仪的输出功率电平降低时，DUT可以通过监测测量的射频性能水平来确定下行链路灵敏度。同时可以针对任何通信协议的多个调制方案和数据速率执行下行链路灵敏度测试。

29. 发明申请

US20120123723A1 METHODS FOR MITIGATING INTERACTIONS AMONG WIRELESS DEVICES IN A WIRELESS TEST SYSTEM 审中-公开
标题翻译：用于在无线测试系统中的无线设备中减轻交互的方法
公开(公告)号：US20120123723A1
公开(公告)日：2012-05-17
申请号：US13019250
申请日：2011-02-01
申请人： Wassim El-Hassan , Vishwanath Venkataraman , Justin Gregg
发明人： Wassim El-Hassan , Vishwanath Venkataraman , Justin Gregg
IPC分类号： G06F19/00
CPC分类号： H04W24/08 , H04B17/0085 , H04B17/327 , H04L43/50
摘要： A test station may include a test host, a test unit, and a test chamber. Multiple devices under test (DUTs) may be placed in the test chamber during wireless testing. Radio-frequency signals may be conveyed between the test unit and the multiple DUTs using a conducted arrangement through a splitter-combiner circuit or using a radiated arrangement through a test antenna in the test chamber. The multiple DUTs may be synced to the test unit one DUT at a time (in series) or in parallel. The test host may direct the test unit to broadcast downlink signals at a given channel. The test host my direct a selected DUT to transmit uplink signals at the given channel or at a selected channel that is different from the given channel. The test unit may be used to perform desired measurement on the uplink signals transmitted from the selected DUT.
摘要翻译：测试台可以包括测试主机，测试单元和测试室。在无线测试期间，可以将多个被测设备（DUT）放置在测试室中。射频信号可以在测试单元和多个DUT之间使用通过分路器组合器电路的传导布置或者通过测试室中的测试天线的辐射布置来传送。多个DUT可以一次（串联）或并联同步到测试单元一个DUT。测试主机可以指示测试单元在给定信道上广播下行链路信号。测试主机我直接选择一个DUT，以在给定的信道或不同于给定信道的选定信道上传输上行链路信号。测试单元可用于对从所选DUT发送的上行链路信号执行所需的测量。

30. 发明申请

US20120122406A1 SIMULTANEOUS DOWNLINK TESTING FOR MULTIPLE DEVICES IN RADIO-FREQUENCY TEST SYSTEMS 有权
标题翻译：无线电频率测试系统中多个设备的同时下载测试
公开(公告)号：US20120122406A1
公开(公告)日：2012-05-17
申请号：US13018348
申请日：2011-01-31
申请人： Justin Gregg , Adil Syed , Vishwanath Venkataraman
发明人： Justin Gregg , Adil Syed , Vishwanath Venkataraman
IPC分类号： H04W24/00
CPC分类号： H04W24/06 , H04L43/0882 , H04L43/50
摘要： A test station may include a test host, a signal generator, and a test chamber. Multiple devices under test (DUTs) may be placed in the test chamber during production testing. Radio-frequency signals may be conveyed from the signal generator to the multiple DUTs using a conducted arrangement through a radio-frequency signal splitter circuit or using a radiated arrangement through an antenna in the test chamber. The signal generator may broadcast initialization downlink signals. The multiple DUTs may synchronize with the initialing downlink signals. The signal generator may broadcast test downlink signals at a target output power level. The multiple DUTs may receive the test downlink signals and compute a corresponding downlink transmission performance level based on the received downlink signals. A given DUT is marked as a passing DUT if the downlink performance level is satisfactory. A given DUT may be retested if the downlink performance level fails design criteria.
摘要翻译：测试台可以包括测试主机，信号发生器和测试室。在生产测试期间，可以将多个待测设备（DUT）放置在测试室中。射频信号可以使用通过射频信号分离器电路的传导装置或使用通过测试室中的天线的辐射装置从信号发生器传送到多个DUT。信号发生器可以广播初始化下行链路信号。多个DUT可以与初始化下行链路信号同步。信号发生器可以以目标输出功率电平广播测试下行链路信号。多个DUT可以接收测试下行链路信号，并且基于所接收的下行链路信号来计算相应的下行链路传输性能等级。如果下行链路性能水平令人满意，给定的DUT被标记为通过DUT。如果下行链路性能级别失败设计标准，则可以重新测试给定的DUT。

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