公开(公告)号：US20170012716A1

公开(公告)日：2017-01-12

申请号：US14794178

申请日：2015-07-08

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG

IPC: H04B17/15 ,  H04B17/29

CPC classification number: H04B17/15 ,  H04B17/29 ,  H04L1/20

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including detecting transitions between RF data packet signal transmission and reception by the DUT, detecting transitions between different RF data packet signal transmission operations by the DUT, and detecting transitions between different RF data packet signal reception operations by the DUT.

Abstract translation: 用于测试被测试的射频（RF）数据分组信号收发器设备（DUT）的方法，包括检测DUT的RF数据分组信号发送和接收之间的转换，检测被DUT的不同RF数据分组信号传输操作之间的转换，以及检测 DUT之间的不同RF数据包信号接收操作之间的转换。

公开(公告)号：US20150256274A1

公开(公告)日：2015-09-10

申请号：US14202104

申请日：2014-03-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG ,  Guang SHI

IPC: H04B17/15

CPC classification number: H04B17/24 ,  H04B17/0085

Abstract: System and method for controlling test flow of a radio frequency (RF) signal transceiver device under test (DUT) by inducing an interrupt via an internal signal interface or an external signal interface (with one example of the latter being a baseband signal interface for conveying audio signals). With exemplary embodiments, one or more DUT control signals are provided to or otherwise initiated within the DUT by inducing an interrupt, including inducement via use of the signal interface. With further exemplary embodiments, one or more test control signals are also provided to RF circuitry that responds by transmitting one or more RF receive signals for the DUT and receives from the DUT one or more RF transmit signals related to the one or more DUT control signals.

Abstract translation: 通过内部信号接口或外部信号接口引起中断来控制待测射频（RF）信号收发器设备的测试流程的系统和方法（其中一个例子是用于传送的基带信号接口 音频信号）。 利用示例性实施例，通过引起中断（包括通过使用信号接口的诱导）来向DUT中提供一个或多个DUT控制信号或以其他方式启动DUT。 利用另外的示例性实施例，还向RF电路提供一个或多个测试控制信号，RF电路通过发送用于DUT的一个或多个RF接收信号进行响应，并从DUT接收与一个或多个DUT控制信号相关的一个或多个RF发射信号 。

公开(公告)号：US20150149839A1

公开(公告)日：2015-05-28

申请号：US14087584

申请日：2013-11-22

Applicant: Litepoint Corporation

Inventor： Christian Volf OLGAARD

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04B17/0085 ,  H04B17/29 ,  H04B17/345 ,  H04W24/08

Abstract: A system and method for testing multiple wireless data packet signal transceiver devices under test (DUTs) with dynamic signal interference compensation. Transmit data packets originating from other DUTs are monitored during receive signal testing of a selected DUT for concurrent occurrences of transmit and receive data packets. From this, it can be determined whether a failure to receive a responsive data packet, such as an acknowledgement, from the selected DUT is likely due to interference from a transmit data packet from another DUT being at least substantially concurrent with the receive data packet to which the selected DUT was expected to respond. If so, one or more receive data packets can be added to the receive signal sequence to extend the test and determine an accurate packet error rate (PER) without requiring a repeat of the full test.

Abstract translation: 一种用于测试具有动态信号干扰补偿的被测试多个无线数据分组信号收发器设备（DUT）的系统和方法。 在选择的DUT的接收信号测试期间，监测来自其他DUT的发送数据分组，用于并发发生和接收数据分组。 由此可以确定是否由于来自另一个DUT的发送数据分组的干扰至少与接收数据分组基本上并发而导致从所选择的DUT接收到响应数据分组（例如确认）的故障是否可能是由于来自 所选DUT被期望响应。 如果是这样，则可以将一个或多个接收数据分组添加到接收信号序列以扩展测试并确定准确的分组错误率（PER），而不需要重复全面测试。

公开(公告)号：US20150093998A1

公开(公告)日：2015-04-02

申请号：US14565634

申请日：2014-12-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H01Q3/267 ,  H04B3/462 ,  H04B17/0085 ,  H04B17/17

Abstract: System and method for confirming radio frequency (RF) signal connections with multiple devices under test (DUTs) tested concurrently using replicas of a RF test signal. Cabled signal connections between the signal source and the DUTs are monitored by sensing levels of outgoing and related reflection RF signals. These signal levels are compared against similar signal levels when the outgoing RF signals are provided to reference impedances. Alternatively, the cabled signal connections have lengths of known signal wavelengths and the RF test signal frequency is swept such that minimum and maximum time delays between the outgoing and reflection RF signals go through minimum and maximum signal cycles with a difference of at least one full cycle. The reflection RF signal magnitude and phase are monitored, from which peak and valley signal level differences and phase changes are identified to determine return loss and phase changes indicative of DUT connection.

Abstract translation: 使用RF测试信号的副本同时测试的多个待测器件（DUT）确定射频（RF）信号连接的系统和方法。 通过感测输出和相关反射RF信号的电平来监测信号源和DUT之间的电缆信号连接。 当将输出RF信号提供给参考阻抗时，将这些信号电平与类似的信号电平进行比较。 或者，电缆信号连接具有已知信号波长的长度，并且扫描RF测试信号频率，使得出射和反射RF信号之间的最小和最大时间延迟经过最小和最大信号周期，其中至少一个全周期 。 监测反射RF信号幅度和相位，从中识别峰谷信号电平差和相位变化，以确定指示DUT连接的回波损耗和相位变化。

公开(公告)号：US20150067417A1

公开(公告)日：2015-03-05

申请号：US14017077

申请日：2013-09-03

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04W24/06 ,  H04W88/06

Abstract: A method of using tester data packet signals and control instructions for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) capable of communicating using multiple radio access technologies (RATs) having one or more mutually distinct signal characteristics. During mutually alternating time intervals, selected ones of which are substantially contemporaneous, tester data packet signals and control instructions are used for concurrent testing and configuration for testing, respectively, of multiple RATs of the DUT.

Abstract translation: 一种使用测试器数据分组信号和控制指令来测试能够使用具有一个或多个相互不同的信号特性的多个无线电接入技术（RAT）进行通信的被测试射频（RF）数据分组信号收发器设备（DUT）的方法。 在相互交替的时间间隔期间，选定的时间间隔基本上同时进行，测试器数据分组信号和控制指令被用于分别测试DUT的多个RAT的并行测试和配置。

公开(公告)号：US20150058691A1

公开(公告)日：2015-02-26

申请号：US13972280

申请日：2013-08-21

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG ,  Guang SHI

IPC: G01R31/319

CPC classification number: G01R31/319 ,  G01R31/31725 ,  G01R31/318371 ,  H04L43/50 ,  H04W24/06

Abstract: A method for testing a data packet signal transceiver device under test (DUT) that minimizes time lost due to waiting for respective power levels of data packets transmitted by the DUT to settle at the desired nominal value for transmit signal testing. In accordance with exemplary embodiments, signals transmitted by the DUT during receive signal testing, e.g., as acknowledgement data packets, are transmitted at the nominal value for transmit signal testing, thereby allowing sufficient time for individual data packet signal power levels to settle and remain consistent at the nominal value by the time receive signal testing is completed and transmit signal testing is to begin.

Abstract translation: 一种用于测试被测试的数据分组信号收发器设备（DUT）的方法，其最小化由于等待由DUT发送的数据分组的相应功率电平以达到期望的标称值以用于发射信号测试的时间损失。 根据示例性实施例，在接收信号测试期间由DUT发送的信号（例如作为确认数据分组）以用于发射信号测试的标称值被发送，从而允许足够的时间来使各个数据分组信号功率电平稳定并保持一致 在标准值下，接收信号测试完成，发射信号测试即将开始。

公开(公告)号：US20140269365A1

公开(公告)日：2014-09-18

申请号：US13840276

申请日：2013-03-15

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG

IPC: H04L12/26

CPC classification number: H04L43/50 ,  G01R31/3025

Abstract: A system and method for testing signal reception by a data packet signal transceiver. By monitoring signals provided to and returning from a device under test (DUT), e.g., stimulus and response signals, respectively, it can be determined whether and when the DUT has received a faulty data packet or received a valid data packet in a faulty manner. When such events occur, appropriate control signals are provided for instructing the test signal reception and analysis subsystem (e.g., a vector signal analyzer) to capture and retain for analysis such faulty data packet or valid data packet received in a faulty manner. This enables the data packet reception test results to identify the number of data packets correctly received within the prescribed time interval and identify which data packet reception faults are due to reception of a faulty data packet or reception of a valid data packet in a faulty manner.

Abstract translation: 用于通过数据分组信号收发器测试信号接收的系统和方法。 通过分别监视提供给被测器件（DUT）和从被测器件返回的信号（例如，激励和响应信号），可以确定DUT是否以及何时以故障方式接收到故障数据分组或接收到有效的数据分组 。 当发生这种事件时，提供适当的控制信号用于指示测试信号接收和分析子系统（例如，矢量信号分析器）捕获并保留用于分析以故障方式接收的这种故障数据分组或有效数据分组。 这使得数据分组接收测试结果能够识别在规定的时间间隔内正确接收的数据分组的数量，并且以错误的方式识别哪个数据分组接收故障是由于接收到有故障的数据分组或接收有效的数据分组。