公开(公告)号：US09003253B2

公开(公告)日：2015-04-07

申请号：US13972280

申请日：2013-08-21

Applicant: Litepoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Guang Shi

IPC: G01R31/3183 ,  G01R31/319 ,  G01R31/317 ,  H04W24/06

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：US08842552B2

公开(公告)日：2014-09-23

申请号：US13716573

申请日：2012-12-17

Applicant: Litepoint Corporation

Inventor： Christian Volf Olgaard ,  Wing Hung Lee ,  Guang Shi ,  Sang Yui Hon

IPC: H04L12/26 ,  H04W24/02 ,  H04W74/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04W24/02 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/244 ,  H04L2001/0093 ,  H04W24/06 ,  H04W74/006

Abstract: Method and system for facilitating testing of multiple time-division-duplex (TDD) data packet signal transceivers. Replicas of a data packet signal are transmitted by a tester to multiple TDD devices under test (DUTs), where the replicated signal is either a null or TDD data packet signal. In one embodiment, replica null data packet signals are transmitted for a predetermined time interval sufficient for the DUTs to synchronize with the tester. In another embodiment, following successful and unsuccessful receptions of responsive signals from respective DUTs indicating successful reception of their respective replica TDD data packet signals and, therefore, synchronization with the tester, corresponding replica TDD data packet signals are provided with data packet signal characteristics causing such replica data packet signals to fail to conform or to conform, respectively, with a predetermined data packet signal standard. Following synchronization, test and responsive data packet signals can be exchanged between the tester and DUTs.

Abstract translation: 用于促进多时分双工（TDD）数据分组信号收发器测试的方法和系统。 数据分组信号的复制品由测试者发送到被测试的多个TDD设备（DUT），其中复制信号是空值或TDD数据分组信号。 在一个实施例中，复制空数据分组信号被发送预定时间间隔，足以使DUT与测试器同步。 在另一个实施例中，在成功地和不成功地接收来自相应DUT的响应信号之后，指示成功地接收到它们各自的副本TDD数据分组信号，并因此与测试者同步，相应的复制TDD数据分组信号被提供有导致这样的数据分组信号特征 复制数据分组信号分别不符合或符合预定的数据分组信号标准。 在同步之后，可以在测试仪和DUT之间交换测试和响应数据包信号。

公开(公告)号：US09485040B2

公开(公告)日：2016-11-01

申请号：US13959354

申请日：2013-08-05

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Guang Shi

IPC: H04B17/00 ,  H04B17/318 ,  H04B17/29

CPC classification number: H04B17/318 ,  H04B17/29

Abstract: A method for using a test data packet signal to test a data packet signal transceiver device under test (DUT) having an operating characteristic defined by a data packet error rate (PER) as a function of data packet signal power (PWR). The test data packet signal power is varied and a test PER is computed as a function of DUT response data packets and test data packets until a measured test PER or a computed test PER extrapolated from measured PERs is equal to a predetermined PER less than and greater than maximum and minimum PERs, respectively.

Abstract translation: 一种使用测试数据分组信号测试作为数据分组信号功率（PWR）的函数的由具有由数据分组差错率（PER）定义的操作特性的被测数据分组信号收发器设备（DUT）的方法。 测试数据分组信号功率是变化的，并且作为DUT响应数据分组和测试数据分组的函数计算测试PER，直到测量的测试PER或从测量的PER推出的计算测试PER等于小于或等于预定的PER 分别为最大和最小PER。

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：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：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。