公开(公告)号：US20160072686A1

公开(公告)日：2016-03-10

申请号：US14476855

申请日：2014-09-04

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26

CPC classification number: H04L43/50

Abstract: System and method for capturing and enabling analysis of one or more test data packets from a radio frequency (RF) data packet signal transmitter device under test (DUT). Recently captured data packets from a received RF data packet signal are retained for analysis following confirmation that they contain potentially valid test data packets. Such confirmation is achieved by confirming that a data pattern defined by currently captured data packets differs from a data pattern defined by subsequently received data packets. Following such confirmation, a trigger signal initiates access and/or analysis of the captured data packets.

Abstract translation: 用于捕获和启用来自被测试的射频（RF）数据分组信号发射机设备（DUT）的一个或多个测试数据分组的系统和方法。 从接收到的RF数据分组信号中最近捕获的数据分组被保留用于分析，以确认它们包含潜在有效的测试数据分组。 这样的确认是通过确认由当前捕获的数据分组定义的数据模式与由随后接收的数据分组定义的数据模式不同而实现的。 在这样的确认之后，触发信号启动所捕获的数据分组的访问和/或分析。

公开(公告)号：US20160050569A1

公开(公告)日：2016-02-18

申请号：US14795390

申请日：2015-07-09

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Roman Schilter ,  Guang Shi

IPC: H04W24/02 ,  H04L29/06 ,  H04B7/04

CPC classification number: H04W24/02 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/084 ,  H04B7/086

Abstract: Method for testing implicit beamforming performance of a multiple-input multiple-output (MIMO) radio frequency (RF) data packet signal transceiver device under test (DUT). The data packet signals forming the sequential data packet signal transmissions used for beamforming are produced with a selectively varied phase difference and conveyed via internal RF signal paths to external transmit terminals. Combining these transmitted data packet signals produces a combined data packet signal in which a peak power occurs during which a particular phase difference is being induced between the sequential DUT data packet signal transmissions used for the beamforming. This phase difference corresponds to the difference in RF signal phase lengths between the internal RF signal paths of the DUT, and is thereby indicative of the amount of phase shift needed between the sequential DUT data packet signal transmissions used for the beamforming to enable optimal implicit beamforming performance.

Abstract translation: 用于测试多输入多输出（MIMO）射频（RF）数据分组信号收发器设备（DUT）的隐含波束成形性能的方法。 形成用于波束形成的顺序数据分组信号传输的数据分组信号通过选择性地变化的相位差产生，并经由内部RF信号路径传送到外部发送终端。 组合这些发送的数据分组信号产生组合的数据分组信号，其中发生峰值功率，在该峰值功率期间，在用于波束形成的连续的DUT数据分组信号传输之间正在感应出特定的相位差。 该相位差对应于DUT的内部RF信号路径之间的RF信号相位长度的差异，并且因此指示用于波束成形的顺序DUT数据分组信号传输之间所需的相移量，以实现最佳隐含波束成形 性能。

公开(公告)号：US09232419B2

公开(公告)日：2016-01-05

申请号：US14029905

申请日：2013-09-18

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04B17/00 ,  H04W24/06 ,  H04L12/26

CPC classification number: H04W24/06 ,  H04B17/00 ,  H04B17/0085 ,  H04B17/10

Abstract: System and method for using multiple data packet signal testers having narrower data packet signal bandwidths for testing multiple data packet signal transmitters having wider data packet signal bandwidths. Using multiple data packet signal testers with narrower receiver bandwidths to process respective portions of the wider bandwidth of the data packet signals produced by the devices under test (DUTs) enables use of lower cost, narrower-bandwidth test equipment to test wide-bandwidth signals.

Abstract translation: 用于使用具有较窄数据分组信号带宽的多个数据分组信号测试仪的系统和方法，用于测试具有较宽数据分组信号带宽的多个数据分组信号发射机。 使用具有较窄接收机带宽的多个数据分组信号测试仪来处理由被测器件（DUT）产生的数据分组信号的较宽带宽的各个部分，从而能够使用较低成本，较窄带宽的测试设备来测试宽带宽信号。

公开(公告)号：US20150304864A1

公开(公告)日：2015-10-22

申请号：US14256095

申请日：2014-04-18

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04W24/06

CPC classification number: H04B17/00 ,  H04B17/15

Abstract: Methods for testing multiple data packet signal transceiver devices under test (DUTs) with a shared tester. The DUTs transmit their data packet signals until predetermined numbers of data packets have been transmitted or predetermined time intervals expire, following which, each DUT awaits a synchronization request to begin transmitting data packets to the tester. Alternatively, the tester determines when its receiver is available for receiving data packets, following which, synchronization requests are sent to respective DUTs to initiate their transmissions of data packets to the tester. Further alternatively, power levels among data packets initially transmitted from the DUTs are monitored to determine when they are indicative of them having settled. As each DUT data packet signal power settles, a status signal indicating the settled nature of each DUT is provided to the tester which then begins receiving the respective DUT data packet signals, as they settle in power, for analysis.

Abstract translation: 用共享测试仪测试多个被测数据分组信号收发器设备（DUT）的方法。 DUT传送其数据分组信号，直到已经发送预定数量的数据分组或预定时间间隔到期，之后每个DUT等待同步请求开始向测试者发送数据分组。 或者，测试者确定其接收机何时可用于接收数据分组，随后将同步请求发送到相应的DUT以发起数据分组传输给测试者。 另外替代地，监视从DUT发送的数据分组中的功率电平，以确定它们何时指示它们已经结算。 当每个DUT数据分组信号功率稳定时，向测试者提供指示每个DUT的稳定性质的状态信号，然后测试器开始接收相应的DUT数据分组信号，因为它们定时处理，用于分析。

公开(公告)号：US09088521B2

公开(公告)日：2015-07-21

申请号：US13772422

申请日：2013-02-21

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L43/00

Abstract: A system and method for testing multiple data packet signal transceivers concurrently in which scalar and vector signal testing are separated. Concurrent testing of scalar signal characteristics of multiple data packet signals from the data packet signal transceivers can be performed while also performing testing of vector signal characteristics of portions of each of the multiple data packet signals, thereby requiring less test time for performing all desired signal tests.

Abstract translation: 用于同时测试多个数据分组信号收发器的系统和方法，其中标量和矢量信号测试被分离。 可以同时执行来自数据分组信号收发机的多个数据分组信号的标量信号特征的同时测试，同时还对多个数据分组信号中的每一个的部分的矢量信号特性进行测试，由此需要较少的测试时间来执行所有期望的信号测试 。

公开(公告)号：US20150138998A1

公开(公告)日：2015-05-21

申请号：US14084762

申请日：2013-11-20

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L43/0829

Abstract: A system and method for enabling testing a data link of a data packet signal transceiver device under test (DUT). A RX data packet signal originating from a reference device is conveyed for reception by a DUT, and a TX data packet signal originating from the DUT is conveyed for reception by the reference device. At least a portion of the RX data packet signal is conveyed with a signal attenuation and at least a portion of the TX data packet signal is conveyed with a different signal attenuation.

Abstract translation: 一种能够测试被测数据分组信号收发器设备（DUT）的数据链路的系统和方法。 来自参考设备的RX数据分组信号被传送以供DUT接收，并且从DUT发送的TX数据分组信号被传送以供参考设备接收。 RX数据分组信号的至少一部分以信号衰减传送，并且以不同的信号衰减传送TX数据分组信号的至少一部分。

公开(公告)号：US11855707B2

公开(公告)日：2023-12-26

申请号：US17352546

申请日：2021-06-21

Applicant: LitePoint Corporation

Inventor： Chen Cao ,  Christian Volf Olgaard ,  Ray Wang

IPC: H04B17/00 ,  G01R31/28

CPC classification number: H04B17/0085 ,  G01R31/2822

Abstract: System and method for measuring path loss of a conductive radio frequency (RF) signal path used in testing a RF data signal transceiver device under test (DUT) with a RF vector signal transceiver. A path loss measurement may be performed by initially leaving an open connection at the RF signal path end normally connected to the DUT during DUT testing. Sourcing the RF test signal with the RF vector signal transceiver at multiple test frequencies avoids need for additional testing with shorted and loaded connections at the RF signal path end.

公开(公告)号：US20220407610A1

公开(公告)日：2022-12-22

申请号：US17352546

申请日：2021-06-21

Applicant: LitePoint Corporation

Inventor： Chen Cao ,  Christian Volf Olgaard ,  Ray Wang

IPC: H04B17/00 ,  G01R31/28

Abstract: System and method for measuring path loss of a conductive radio frequency (RF) signal path used in testing a RF data signal transceiver device under test (DUT) with a RF vector signal transceiver. A path loss measurement may be performed by initially leaving an open connection at the RF signal path end normally connected to the DUT during DUT testing. Sourcing the RF test signal with the RF vector signal transceiver at multiple test frequencies avoids need for additional testing with shorted and loaded connections at the RF signal path end.

公开(公告)号：US20220132340A1

公开(公告)日：2022-04-28

申请号：US17078625

申请日：2020-10-23

Applicant: LitePoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Chen Cao

IPC: H04W24/08

Abstract: A system and method for using a wireless radio frequency (RF) data packet signaling link to enable non-link control of testing of a data packet signal transceiver device under test (DUT) in which a communication session between a tester and a DUT for purposes of testing the DUT may first be initiated by a separate, commonly available, and lower cost, communication device. Following its establishment, the tester may monitor the communication session, e.g., via wireless signal sniffing, to acquire and use associated device identification information to join the session and transmit trigger based test (TBT) data packets for initiating a test sequence within the DUT. Hence, use of a non-link capable tester to perform parametric testing of a DUT at the lowest network architecture layer, e.g., the physical (PHY) layer, may be enabled.

公开(公告)号：US10819616B2

公开(公告)日：2020-10-27

申请号：US16248453

申请日：2019-01-15

Applicant: LitePoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Kaiyun Cui

IPC: H04L12/26 ,  H04B17/318

Abstract: System and method for testing transmission and reception performance of a data packet signal transceiver device under test (DUT). Data packet signals transmitted by a tester with a tester transmit output power (TTOP) contain trigger frames that include data corresponding to a reported tester transmit power (RTTP) of the data packet signals, and a desired received signal strength (TRSS) of DUT data packet signals to be received by the tester. Based on received signal strength of the tester data packet signals reported by the DUT (DRSS), responsive DUT data packet signals having a DUT transmit output power of RTTP−DRSS+TRSS. Successive repetitions of such tester and DUT data packet signals for multiple combinations of values of the TTOP, RTTP and DRSS enable testing transmission and reception performance of the DUT, including determining minimum and maximum DUT transmission power levels, with minimal signal interactions between tester and DUT.