公开(公告)号：US10326540B2

公开(公告)日：2019-06-18

申请号：US15619856

申请日：2017-06-12

Applicant: LitePoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Qinghui Luo

IPC: H04B17/15 ,  H04L12/26 ,  G01R31/3183 ,  G01R31/319 ,  G01R31/317 ,  H04B17/10 ,  H04B17/29 ,  H04W24/06

Abstract: A method for coordinating testing of a wireless device under test (DUT) using non-link testing resources. Coordination between the tester and DUT is achieved by transmitting, from the tester to the DUT, predetermined numbers of data packets associated with predetermined tester identification data (e.g., MAC addresses identifying the tester transmitter). During test phases involving measurement and/or calibration of DUT transmit signals, the tester sends a number of data packets associated with one or more versions of tester identification data, in response to which the DUT performs internal operations (e.g., revising transmit power offsets). During later test phases involving validation of DUT performance, the tester sends another number of data packets associated with one or more versions of the tester identification data to inform the DUT that its testing has passed or failed, and/or is to be repeated.

公开(公告)号：US10298340B2

公开(公告)日：2019-05-21

申请号：US15535135

申请日：2016-12-22

Applicant: LitePoint Corporation ,  Christian Volf Olgaard ,  Ruizu Wang ,  Qing Jie Lu

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Qing Jie Lu

IPC: H04B17/318 ,  H04B17/21

Abstract: A method for improving accuracy of power measurements of low power radio frequency (RF) signals received by a RF signal receiver in which power measurement accuracy taken at a low resolution is compensated with use of multiple RF signal attenuations at a finer resolution. In accordance with exemplary embodiments, incremental RF signal attenuations are applied to the received RF signal. An average of the power measurements, including those with the applied signal attenuations, has a net measurement error less than that of a direct power measurement.

公开(公告)号：US10009126B2

公开(公告)日：2018-06-26

申请号：US14966761

申请日：2015-12-11

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Zhiyong Huang

IPC: H04B17/29 ,  H04L12/26 ,  H04B17/00

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：US09871601B2

公开(公告)日：2018-01-16

申请号：US14852821

申请日：2015-09-14

Applicant: LITEPOINT CORPORATION

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

IPC: H04W24/06 ,  H04B17/17 ,  H04B17/00 ,  H04W52/24

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.

公开(公告)号：US09825717B2

公开(公告)日：2017-11-21

申请号：US14794178

申请日：2015-07-08

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04B17/15 ,  H04B17/29 ,  H04L1/20

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.

公开(公告)号：US09497101B2

公开(公告)日：2016-11-15

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：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：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：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.