公开(公告)号：US20180324078A1

公开(公告)日：2018-11-08

申请号：US16032366

申请日：2018-07-11

Applicant: Accedian Networks Inc.

Inventor： Stephane St-Laurent ,  Donald Stevenson

IPC: H04L12/26 ,  H04L1/24 ,  H04L12/46

CPC classification number: H04L43/50 ,  H04L1/243 ,  H04L12/4641 ,  H04L41/12 ,  H04L43/10 ,  H04L43/16

Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.

公开(公告)号：US20180279141A1

公开(公告)日：2018-09-27

申请号：US15927364

申请日：2018-03-21

Applicant: CONTINENTAL AUTOMOTIVE GMBH ,  Continental Teves AG & Co. oHG

Inventor： Christian Morhart ,  Marc Menzel

IPC: H04W24/06 ,  H04L1/24 ,  H04W4/40

CPC classification number: H04W24/06 ,  H04B17/17 ,  H04B17/318 ,  H04L1/241 ,  H04L1/243 ,  H04L1/244 ,  H04W4/40

Abstract: A method for testing a vehicle-to-X communication module by means of a diagnostic device as well as an associated vehicle-to-X communication module and an associated diagnostic device. During a test mode messages are exchanged between the vehicle-to-X communication module and the diagnostic device, and evaluated in order to detect errors.

公开(公告)号：US10045235B2

公开(公告)日：2018-08-07

申请号：US14872559

申请日：2015-10-01

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Leif Mattisson ,  Béla Rathonyi

IPC: H04L12/26 ,  H04W24/06 ,  H04L1/24 ,  H04W36/00 ,  H04W76/19 ,  H04W76/30 ,  H04L12/24

CPC classification number: H04W24/06 ,  H04L1/243 ,  H04L41/0866 ,  H04L41/12 ,  H04L43/50 ,  H04W36/00 ,  H04W36/0005 ,  H04W76/19 ,  H04W76/30

Abstract: Systems and methods for verifying compliance of a communication device with one or more requirement specifications is provided. In one exemplary embodiment, a method may be performed at a communication device for verifying compliance of the communication device with a requirement specification. Further, while a test loop is activated in the communication device, the method may include receiving, at a receiver of the communication device and on a downlink of a radio link, downlink data. In response to determining an occurrence of an event specific to verifying the compliance of the communication device with the requirement specification and used to control when the communication device transfers the received downlink data from the receiver to a transmitter of the communication device, the method may include transferring, from the receiver, to the transmitter, the received downlink data. Also, the method may include transmitting, from the transmitter on an uplink of the radio link, the received downlink data. The received downlink data transmitted on the uplink may be used to verify the compliance.

公开(公告)号：US20180076925A1

公开(公告)日：2018-03-15

申请号：US15260702

申请日：2016-09-09

Applicant: Viavi Solutions Inc.

Inventor： Andrew Neal

IPC: H04L1/00 ,  H04B10/50 ,  H04L1/24 ,  H03M13/15

CPC classification number: H04L1/0041 ,  H03M13/1515 ,  H04B10/40 ,  H04L1/0057 ,  H04L1/243 ,  H04L1/244

Abstract: A test instrument or host device can apply inverse transmitter and receiver functions to data transmitted or received by an electrical and optical transponder. The inverse transmitter and receiver functions are applied to counteract internal signal conversion processes of the transponder. Forward error correction and test pattern analysis may be performed on signals received from the transponder after the inverse receiver function is applied to the received signals.

公开(公告)号：US20160352474A1

公开(公告)日：2016-12-01

申请号：US15143299

申请日：2016-04-29

Applicant: Rambus Inc.

Inventor： Jared Zerbe ,  Pak Shing Chau ,  William Franklin Stonecypher

IPC: H04L1/24 ,  H04B1/16 ,  H04B1/04

CPC classification number: H04L1/244 ,  G01R31/31703 ,  G01R31/31713 ,  G01R31/31716 ,  G01R31/31717 ,  G01R31/3183 ,  G01R31/31855 ,  G01R31/318577 ,  G01R31/3187 ,  G06F11/221 ,  G06F11/26 ,  G06F13/423 ,  G11C29/02 ,  G11C29/022 ,  G11C29/025 ,  G11C29/40 ,  H04B1/04 ,  H04B1/16 ,  H04B3/32 ,  H04B17/0085 ,  H04L1/0001 ,  H04L1/242 ,  H04L1/243 ,  H04L5/1438 ,  H04L25/03885

Abstract: A method and apparatus for evaluating and optimizing a signaling system is described. A pattern of test information is generated in a transmit circuit of the system and is transmitted to a receive circuit. A similar pattern of information is generated in the receive circuit and used as a reference. The receive circuit compares the patterns. Any differences between the patterns are observable. In one embodiment, a linear feedback shift register (LFSR) is implemented to produce patterns. An embodiment of the present disclosure may be practiced with various types of signaling systems, including those with single-ended signals and those with differential signals. An embodiment of the present disclosure may be applied to systems communicating a single bit of information on a single conductor at a given time and to systems communicating multiple bits of information on a single conductor simultaneously.

公开(公告)号：US20160084907A1

公开(公告)日：2016-03-24

申请号：US14960184

申请日：2015-12-04

Applicant: VIAVI SOLUTIONS DEUTSCHLAND GMBH

Inventor： Reiner SCHNIZLER ,  Paul BROOKS

IPC: G01R31/317 ,  G01R31/3177

CPC classification number: G01R31/31718 ,  G01R31/3177 ,  G01R31/319 ,  G01R31/31908 ,  G06F11/2733 ,  H04B10/0779 ,  H04L1/243 ,  H04L43/50

Abstract: A test device for testing a device under test (DUT) includes an integrated control interface adaptable for a plurality of different communication standards. The integrated control interface can be adapted to be compliant with the communication standard used by a DUT connected to the test device.

Abstract translation: 用于测试被测设备（DUT）的测试设备包括可适用于多个不同通信标准的综合控制接口。 集成控制接口可以适应于连接到测试设备的DUT使用的通信标准。

公开(公告)号：US09264188B2

公开(公告)日：2016-02-16

申请号：US14591210

申请日：2015-01-07

Applicant: Intel IP Corporation

Inventor： Andrea Camuffo

IPC: H04L1/24 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04L1/243 ,  H04L1/0003 ,  H04L1/206

Abstract: An apparatus for determining information on an amplitude error of a transmit signal includes at least one transmit path module, at least one feedback receive path module and at least one error determining module. The transmit path module generates a high frequency transmit signal based on a baseband transmit signal. The feedback receive path module generates a baseband feedback signal based on a high frequency feedback signal derived from the high frequency transmit signal. Further, the error determining module determines an error signal indicating information associated with an amplitude error of the high frequency transmit signal based on the baseband transmit signal and the baseband feedback signal. The error determining module comprises a feedback loop. This feedback loop of the error determining module comprises a feedback loop processing module. The feedback loop processing module generates a feedback loop output signal based on a feedback loop input signal and the baseband transmit signal.

Abstract translation: 用于确定关于发射信号的幅度误差的信息的装置包括至少一个发射路径模块，至少一个反馈接收路径模块和至少一个误差确定模块。 发送路径模块基于基带发送信号生成高频发送信号。 反馈接收路径模块基于从高频发送信号导出的高频反馈信号产生基带反馈信号。 此外，误差确定模块基于基带发射信号和基带反馈信号来确定指示与高频发射信号的幅度误差相关联的信息的误差信号。 误差判定模块包括反馈回路。 误差判定模块的反馈回路包括反馈回路处理模块。 反馈回路处理模块基于反馈回路输入信号和基带发送信号产生反馈回路输出信号。

公开(公告)号：US20160021672A1

公开(公告)日：2016-01-21

申请号：US14424616

申请日：2014-03-19

Applicant: NEC Corporation

Inventor： Thomas DELSOL ,  Yannick LAIR

IPC: H04W72/08 ,  H04L1/24 ,  H04W24/08 ,  H04W72/04 ,  H04L12/26 ,  H04W76/04

CPC classification number: H04W72/085 ,  H04L1/243 ,  H04L43/50 ,  H04W24/06 ,  H04W24/08 ,  H04W72/042 ,  H04W76/27 ,  H04W88/02

Abstract: A communications system is described in which a test device monitors operation of a communication device. The test device identifies each communication bearer associated with the communication device; determines a subset comprising at least one communication bearer to be used when performing the test and not comprising at least one other communication bearer; and initiates the test in which each communication bearer in the subset is used and each communication bearer not in said subset is not used.

Abstract translation: 描述了一种通信系统，其中测试设备监视通信设备的操作。 测试设备识别与通信设备相关联的每个通信承载; 确定包括在执行测试时要使用的至少一个通信承载的子集，并且不包括至少一个其他通信承载; 并且启动其中使用子集中的每个通信承载并且不使用不在所述子集中的每个通信承载的测试。

公开(公告)号：US09185586B2

公开(公告)日：2015-11-10

申请号：US13848749

申请日：2013-03-22

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Leif Mattison ,  Béla Rathonyi

IPC: H04W24/06 ,  H04L12/26 ,  H04W36/00 ,  H04L12/24

CPC classification number: H04W24/06 ,  H04L1/243 ,  H04L41/0866 ,  H04L41/12 ,  H04L43/50 ,  H04W36/00 ,  H04W36/0005 ,  H04W76/19 ,  H04W76/30

Abstract: A method for verifying compliance of a communication device with one or more requirement specifications is disclosed. The method comprises establishing a link between a test system and the communication device, wherein the establishing comprises configuring one or more bearers and one or more control channels; closing a test loop comprising the test system and the communication device, wherein the closing comprises activating a test loop function of the communication device; sending data in a downlink of the test loop from the test system to the communication device; receiving the data at the communication device; transferring at least some of the data to an uplink transmission arrangement of the communication device after a specific event has occurred; and verifying, at the test system, transmission in an uplink of the test loop from the communication device to the test system. Corresponding test system and test loop function arrangement are also disclosed.

Abstract translation: 公开了一种用于验证通信设备与一个或多个要求规范的符合性的方法。 该方法包括建立测试系统和通信设备之间的链路，其中建立包括配置一个或多个承载和一个或多个控制信道; 关闭包括所述测试系统和所述通信设备的测试回路，其中所述关闭包括激活所述通信设备的测试循环功能; 将测试循环的下行链路中的数据从测试系统发送到通信设备; 在通信设备处接收数据; 在特定事件发生之后将至少一些数据传送到通信设备的上行链路传输布置; 以及在所述测试系统处验证所述测试环路的上行链路中的从所述通信设备到所述测试系统的传输。 还公开了相应的测试系统和测试环路功能布置。

公开(公告)号：US09172498B2

公开(公告)日：2015-10-27

申请号：US13852643

申请日：2013-03-28

Applicant: Futurewei Technologies, Inc.

Inventor： Hiroshi Takatori ,  Kofi Anim-Appiah ,  Hang Yan

IPC: H04K1/02 ,  H04L1/00 ,  H04L1/20 ,  H04L1/24 ,  H04L25/03

CPC classification number: H04L1/0042 ,  H04B17/11 ,  H04B17/336 ,  H04L1/205 ,  H04L1/24 ,  H04L1/242 ,  H04L1/243 ,  H04L1/244 ,  H04L25/03343

Abstract: A transmitter comprising a noise signal generator, a summing element configured to generate a signal as a sum of an output of the noise signal generator and a transmit data signal, and a transmit driver configured to generate an output signal based on the sum. Also, a method of calibrating a signal-to-noise ratio (SNR) for a transmitter comprising transmitting a first signal comprising a data signal with no noise signal, capturing the first signal, transmitting a second signal comprising a noise signal, wherein both an amplitude and a phase of the noise signal have been adjusted by a gain and phase control element, capturing the second signal, and determining the SNR corresponding to the captured first signal and the captured second signal, wherein the transmitter transmits the second signal using a transmit driver.

Abstract translation: 一种发送器，包括噪声信号发生器，被配置为产生作为噪声信号发生器的输出和发送数据信号的和的信号的求和元件，以及配置成基于该和产生输出信号的发送驱动器。 此外，校准发射机的信噪比（SNR）的方法包括：发射包括没有噪声信号的数据信号的第一信号，捕获第一信号，发送包括噪声信号的第二信号，其中， 已经通过增益和相位控制元件调整噪声信号的幅度和相位，捕获第二信号，并且确定与所捕获的第一信号和所捕获的第二信号相对应的SNR，其中发射机使用传输 司机。