公开(公告)号：US20150139023A1

公开(公告)日：2015-05-21

申请号：US14082378

申请日：2013-11-18

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG

IPC: H04L12/26

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：US20170078031A1

公开(公告)日：2017-03-16

申请号：US14852814

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

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 via all available channels simultaneously, thereby ensuring that a properly working DUT will always transmit in response. 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交换，使得测试者同时通过所有可用信道发送，从而确保正常工作的DUT将始终发送响应。 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：US20150358839A1

公开(公告)日：2015-12-10

申请号：US14300358

申请日：2014-06-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG

IPC: H04W24/06

CPC classification number: H04W24/06 ,  H04B17/0085 ,  H04B17/29

Abstract: Method and system for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) by monitoring RF data packet signals between a tester and a DUT at a low network media layer, such as the physical (PHY) layer in accordance with the Open Systems Interconnection (OSI) reference model stack. By testing at a low layer, fewer signal conversions and data packet operations are required to perform various basic DUT tests, such as data packet throughput, DUT signal transmission performance, DUT packet type detection without packet decoding, validation of rate adaptation algorithms, and bit error rate (BER) testing.

Abstract translation: 通过在低网络媒体层（例如物理（PHY）层）上监测测试者和DUT之间的RF数据分组信号来测试被测试射频（RF）数据分组信号收发器设备（DUT）的方法和系统 与开放系统互连（OSI）参考模型堆栈。 通过在低层进行测试，需要更少的信号转换和数据包操作来执行各种基本DUT测试，例如数据包吞吐量，DUT信号传输性能，DUT分组类型检测，无需分组解码，速率适配算法验证和位 误码率（BER）测试。

公开(公告)号：US20140169182A1

公开(公告)日：2014-06-19

申请号：US13716369

申请日：2012-12-17

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG ,  Erdem Serkan ERDOGAN ,  Mathew PHILIP

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04L1/1867 ,  H04L1/241 ,  H04L43/50 ,  H04W24/06

Abstract: System and method for facilitating testing of multiple data packet signal transceivers involving data-packet-signal replication and one or more status signals indicating successful and unsuccessful receptions of confirmation signals. Based upon the one or more status signals, one or more control signals cause the replicated data packet signals to be distributed to the devices under test (DUTs) such that, following successful and unsuccessful receptions of confirmation signals, corresponding replicated data packet signals are caused to fail to conform in part or to conform, respectively, with a predetermined data packet signal standard.

Abstract translation: 涉及涉及数据分组信号复制的多个数据分组信号收发机的测试的系统和方法以及表示确认信号的成功和不成功接收的一个或多个状态信号。 基于一个或多个状态信号，一个或多个控制信号使得复制的数据分组信号被分配到被测设备（DUT），使得在成功和不成功接收到确认信号之后，引起相应的复制数据分组信号 分别不符合预定的数据分组信号标准。

公开(公告)号：US20230370172A1

公开(公告)日：2023-11-16

申请号：US17746230

申请日：2022-05-17

Applicant: LitePoint Corporation

Inventor： Chen CAO ,  Christian Volf OLGAARD ,  Ruizu WANG ,  Qingjie LU

IPC: H04B17/00

CPC classification number: H04B17/0085

Abstract: An example process determines a first error vector magnitude (EVM) of a signal output by a device under test (DUT). The process includes adding attenuation on a signal path between the DUT and a vector signal analyzer (VSA), where the attenuation is changeable: measuring, at the VSA, at least two second EVMs for different values of attenuation of the signal output by the DUT, where the at least two second EVMs are corrupted by noise from the VSA, and where each of the at least two second EVMs is based on two or more measurements; and determining the first EVM based on a linear relationship that is based on the first EVM, the at least two second EVMs, and a function based on the attenuation, where the first EVM is without at least some of the noise from the VSA.

公开(公告)号：US20170170916A1

公开(公告)日：2017-06-15

申请号：US14966761

申请日：2015-12-11

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf OLGAARD ,  Ruizu WANG ,  Zhiyong HUANG

IPC: H04B17/29

CPC classification number: H04B17/29 ,  H04B17/0085 ,  H04L43/50

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) with multiple RF signal transmitters and RF signal receivers capable of concurrent operations. Multiple successions of test data packets from a tester to respective RF signal receivers of the DUT and multiple successions of responsive DUT data packets from respective RF signal transmitters of the DUT to the tester are conveyed such that multiple RF signal transmissions, multiple RF signal receptions, or RF signal transmission and reception are performed at least partially concurrently.

公开(公告)号：US20140181601A1

公开(公告)日：2014-06-26

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: G06F11/07

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量的相应摘要数据，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：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：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。