公开(公告)号：US10666542B1

公开(公告)日：2020-05-26

申请号：US16248473

申请日：2019-01-15

Applicant: LitePoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04B17/21 ,  H04L12/26 ,  H04B17/318 ,  H04B17/29 ,  H04B17/19 ,  H04B17/15

Abstract: System and method of testing performance of a data packet signal transceiver (DUT). Multiple DUT signals, with each having a respective DUT transmit power (RDTPn) received by the tester and corresponding to one (IDTPn) of multiple intended DUT transmit powers, for n=1, . . . , m, with a power equal to a minimum IDTP, maximum IDTP, or intermediate IDTP therebetween. Following association of each RDTPn with its IDTPn, a tester signal is sent having a trigger frame and tester transmit output power (TTOP). The trigger frame includes data corresponding to a reported tester transmit power (RTTP), and a desired signal strength (TRSS) of a DUT data packet signal to be received by the tester. A return DUT signal having a RDTPn is received, from which an IDTPn corresponding to the RDTPn is determined and compared to RTTP-TTOP+TRSS. Successive repetitions of such tester and DUT signals and IDTPn comparisons for multiple combinations of values of the TTOP, RTTP and DRSS enable testing reception performance of the DUT, including extracting RSSI measurements, with minimal signal interactions between tester and DUT.

公开(公告)号：US10404609B2

公开(公告)日：2019-09-03

申请号：US15842407

申请日：2017-12-14

Applicant: LitePoint Corporation

Inventor： Chen Cao ,  Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26 ,  H04L12/841 ,  H04L12/825

Abstract: A method for testing a data packet signal transceiver device under test (DUT). Following initial signal communications with a DUT, timing of further transmissions by the DUT may be effectively controlled by transmitting congestive communication channel signals to cause the DUT to detect apparent communication channel activity and in response thereto delay its own signal transmissions.

公开(公告)号：US10084554B2

公开(公告)日：2018-09-25

申请号：US14202104

申请日：2014-03-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Guang Shi

IPC: H04B17/24 ,  H04B17/00

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.

公开(公告)号：US09749065B2

公开(公告)日：2017-08-29

申请号：US14852803

申请日：2015-09-14

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Ke Liu ,  Fei Peng

IPC: H04B17/00 ,  H04W24/06 ,  H04B17/17 ,  H04B17/14

CPC classification number: H04B17/17 ,  H04B17/0085 ,  H04B17/14 ,  H04W24/06 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including communicating via at least one of multiple available signal channels. Data packets exchanged between a tester and DUT as a normal part of a communication link initiation sequence are selectively exchanged and suppressed to enable testing of the DUT without requiring inclusion of special drivers within the DUT, special test software within the tester or establishment of a synchronized communication link between the tester and DUT. For example, in the case of a Bluetooth low energy transceiver, advertisement, scan request and scan response data packets can be used in such manner.

公开(公告)号：US20170078032A1

公开(公告)日：2017-03-16

申请号：US14852821

申请日：2015-09-14

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu Wang ,  Ke Liu ,  Fei PENG

IPC: H04B17/17 ,  H04W24/06

CPC classification number: H04B17/17 ,  H04B17/0085 ,  H04W52/242

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including communicating via each one of multiple available signal channels. Data packets exchanged between a tester and DUT as a normal part of a communication link initiation sequence are exchanged in such a manner that the tester transmits with varied signal power via all available channels simultaneously, thereby ensuring that a properly working DUT will transmit in response to reception of tester data packets having sufficient signal power. For example, in the case of a Bluetooth low energy transceiver, advertisement, scan request and scan response data packets can be used in such manner.

Abstract translation: 用于测试包括通过多个可用信号信道中的每一个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。 以测试者和DUT之间交换的作为通信链路发起序列的正常部分的数据分组以这样的方式进行交换，使得测试仪同时通过所有可用信道以变化的信号功率进行发送，从而确保适当工作的DUT将响应于 接收具有足够信号功率的测试仪数据分组。 例如，在蓝牙低能量收发机的情况下，可以以这种方式使用广告，扫描请求和扫描响应数据分组。

公开(公告)号：US09319298B2

公开(公告)日：2016-04-19

申请号：US14082378

申请日：2013-11-18

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26 ,  H04W24/06

CPC classification number: H04L43/50 ,  H04W24/06

Abstract: A system and method for testing one or more wireless data packet signal transceiver devices under test (DUTs). Incoming data packets from a DUT are monitored to discern between data packets transmitted as part of a DUT calibration cycle or initial data packets being transmitted as the DUT transmitter circuitry settles at its new settings (e.g., transmit signal frequency or power), and later data packets transmitted following completion of the DUT calibration cycle or settling of the DUT transmitter circuitry. Following identification of these later data packets, the tester is so notified and begins the test procedure, e.g., capturing the data packets for analysis. Meanwhile, the tester has been allowed to remain in active use for other test purposes during DUT calibration cycles and settling intervals, thereby increasing testing efficiency and reducing overall test time.

Abstract translation: 一种用于测试被测试的一个或多个无线数据分组信号收发器设备（DUT）的系统和方法。 监视来自DUT的传入数据分组，以便在作为DUT校准周期的一部分发送的数据分组或当DUT发射机电路以其新设置（例如，发射信号频率或功率）稳定时）发送的初始数据分组之间进行辨别，以及稍后的数据 在DUT校准周期完成之后发送的数据包或DUT发射机电路的稳定。 在识别这些稍后的数据分组之后，测试者被通知并开始测试过程，例如捕获用于分析的数据分组。 同时，在DUT校准周期和稳定间隔期间，测试仪被允许保持主动用于其他测试目的，从而提高测试效率并降低整体测试时间。

公开(公告)号：US09160647B2

公开(公告)日：2015-10-13

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：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：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。