公开(公告)号：US09158642B2

公开(公告)日：2015-10-13

申请号：US13721210

申请日：2012-12-20

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Erdem Serkan Erdogan ,  Ruizu Wang ,  Guang Shi

IPC: G06F11/263 ,  G06F11/273 ,  H04L1/24 ,  G06F11/36 ,  H04L1/20

CPC classification number: G06F11/2733 ,  H04L1/203 ,  H04L1/24 ,  H04L1/244

Abstract: A method of testing, such as for a bit error rate (BER), of multiple data packet signal transceivers during which a tester and the data packet signal transceivers exchange sequences of test data packets and summary data packets. The tester provides the test data packets which contain respective pluralities of data bits with respective predetermined bit patterns. Responsive thereto, the data packet signal transceivers provide the summary data packets which contain respective summary data indicative of the number of data bits with the respective predetermined bit patterns that are correctly received by corresponding ones of the data packet signal transceivers.

Abstract translation: 一种在多个数据分组信号收发机（诸如测试器和数据分组信号收发器）交换测试数据分组和汇总数据分组的序列的诸如用于误码率（BER）的测试方法。 测试器提供包含相应多个数据位的测试数据分组，并具有相应的预定位模式。 响应于此，数据分组信号收发器提供汇总数据分组，其包含表示数据比特数目的相应摘要数据，其中相应的数据分组信号收发器正确地接收了相应的预定比特模式。

公开(公告)号：US09083647B2

公开(公告)日：2015-07-14

申请号：US14087584

申请日：2013-11-22

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04B17/00 ,  H04B3/46 ,  H04L12/26 ,  H04W24/08 ,  H04B17/29

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：US09078165B2

公开(公告)日：2015-07-07

申请号：US14565634

申请日：2014-12-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04B17/00 ,  G01R27/00 ,  G01R23/00 ,  H04W24/08 ,  H04B17/17 ,  H01Q3/26 ,  H04B3/462

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.

公开(公告)号：US08885483B2

公开(公告)日：2014-11-11

申请号：US13840276

申请日：2013-03-15

Applicant: Litepoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: G01R31/08 ,  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。

公开(公告)号：US08879659B1

公开(公告)日：2014-11-04

申请号：US14017012

申请日：2013-09-03

Applicant: Litepoint Corporation

Inventor： Christian Volf Olgaard

IPC: H04B7/02 ,  H04W24/08 ,  H04B7/04

CPC classification number: H04B17/14 ,  H04B7/0413

Abstract: A system and method for using a N×N multiple input, multiple output (MIMO) data packet signal transceiver for testing multiple data packet signal transceivers. In accordance with one exemplary embodiment, a N×N MIMO access point can be used for simultaneous testing of multiple single input, single output (SISO) data packet signal transceivers. Selective data packet signal corruption (e.g., in the form of data packet signal attenuation), allows for individual testing of the transmit signals from respective ones of the data packet signal transceivers.

Abstract translation: 一种用于测试多个数据分组信号收发器的N×N多输入多输出（MIMO）数据分组信号收发器的系统和方法。 根据一个示例性实施例，N×N个MIMO接入点可用于同时测试多个单输入单输出（SISO）数据分组信号收发器。 选择性数据分组信号损坏（例如，以数据分组信号衰减的形式）允许对来自相应数据分组信号收发器的发射信号进行单独测试。