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41. 发明申请

WO2014096752A2 FAULT IDENTIFICATION USING LINE ATTENUATIONS 审中-公开
标题翻译：使用线路衰减的故障识别
公开(公告)号：WO2014096752A2
公开(公告)日：2014-06-26
申请号：PCT/GB2013/000531
申请日：2013-12-06
申请人： BRITISH TELECOMMUNICATIONS PLC
发明人： BULL, Philip Martin , ROHLFING, David Michael , BENYON, Paul Robert
CPC分类号： H04B3/48 , H04M3/305 , H04M11/062
摘要： The present invention presents a method of identifying faults in a DSL line using upstream and downstream attenuation measurements, which can be obtained directly from the DSLAM or CPE, thus requiring no specialist test equipment nor disrupting service. A downstream over upstream attenuation ratio is calculated for a line, with calculations repeated over a population of lines. The distribution of ratios, as well as upper and lower thresholds, is determined based on the population. A line is identified as being potentially faulty if it has an attenuation ratio above the upper threshold or below the lower threshold. Specifically, an attenuation ratio below the lower threshold is identified as having a high resistance joint fault (caused by an imperfect connection or corrosion at a joint in at least one of the pairs of a line), and a ratio above the upper threshold as a shunt (caused by degradation of the insulation between the pairs of a line, and often coupled with water ingress).
摘要翻译：本发明提出了一种使用上行和下行衰减测量来识别DSL线路中的故障的方法，其可以直接从DSLAM或CPE获得，因此不需要专门的测试设备或中断服务。对于一条线，计算下游超过上游衰减比，计算重复在一条线上。比例的分布以及上限和下限是根据人口来确定的。如果一条线具有高于上阈值或低于下阈值的衰减比，则线被识别为可能有故障。具体地说，低于下阈值的衰减比被鉴定为具有高阻抗关节故障（由线对中的至少一对中的接头处的不完美连接或腐蚀引起）和高于上阈值的比率作为分流（由线对之间的绝缘的降解引起，并且经常与水入口耦合）。

42. 发明申请

WO2011119384A2 AUTOMATIC GAIN CONTROL CONFIGURATION FOR A WIDEBAND DISTRIBUTED ANTENNA SYSTEM 审中-公开
标题翻译：用于宽带分布式天线系统的自动增益控制配置
公开(公告)号：WO2011119384A2
公开(公告)日：2011-09-29
申请号：PCT/US2011/028590
申请日：2011-03-16
申请人： ADC TELECOMMUNICATIONS, INC. , STRATFORD, Scott , HART, David , HANSEN, David
发明人： STRATFORD, Scott , HART, David , HANSEN, David
IPC分类号： H04B7/04 , H04W88/08
CPC分类号： H04W52/52 , H04B1/40 , H04B3/48
摘要： One embodiment is directed to a distributed antenna system in which a setting for automatic gain control functionality in at least one unit included in the system (for example, in a hub unit or a remote unit) is determined by interpolating between two detected levels measured at that unit while the automatic gain control functionality is operating in two respective predetermined configurations and by interpolating between two target levels that are associated with the two respective predetermined configurations. In one example, the intersection of the two resulting interpolations is used to determine the setting for the automatic gain control functionality.
摘要翻译：一个实施例涉及一种分布式天线系统，其中通过内插在系统中包括的至少一个单元（例如，在集线器单元或远程单元中）的至少一个单元中的自动增益控制功能的设置，该单元同时自动增益控制功能在两个相应的预定配置中操作，并且通过在与两个相应的预定配置相关联的两个目标电平之间进行内插。在一个示例中，使用两个结果内插的交点来确定自动增益控制功能的设置。

43. 发明申请

WO2006092730A1 DSL SYSTEM ESTIMATION INCLUDING KNOWN DSL LINE SCANNING AND BAD SPLICE DETECTION CAPABILITY 审中-公开
标题翻译： DSL系统估计，包括已知的DSL线扫描和边缘检测能力
公开(公告)号：WO2006092730A1
公开(公告)日：2006-09-08
申请号：PCT/IB2006/000496
申请日：2006-02-28
申请人： ADAPTIVE SIGNAL AND SPECTRUM ALIGNMENT, INC. , RHEE, Wonjong , BRADY, Mark, H. , CIOFFI, John, M.
发明人： RHEE, Wonjong , BRADY, Mark, H. , CIOFFI, John, M.
IPC分类号： H04M3/30
CPC分类号： H04M3/306 , H04B3/48 , H04L12/2856 , H04L12/2874 , H04L41/0853 , H04L41/0856 , H04L41/12 , H04L41/142 , H04L43/045 , H04L43/08 , H04L43/0847 , H04L43/0888 , H04L43/0894 , H04L43/106 , H04M3/085 , H04M3/2209 , H04M3/30 , H04M3/304 , H04M11/062
摘要： Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol, users and/or the like. The operational data collected from the system can include performancecharacterizing operational data that typically is available in an ADSL system via elementmanagement-system protocols. Generated estimates and/or approximations can be used in evaluating system performance and directly or indirectly dictating/requiring changes or recommending improvements in operation by transmitters and/or other parts of the communication system. Data and/or other information may be collected using "internal" means or may be obtained from system elements and components via email and/or other "external" means. The likelihood of a model's accuracy can be based on various data, infbrmation and/or indicators of system performance, such as observed normal operational data, test data and/or prompted operational data that shows operating performance based on stimulation signals. One example of such prompted data uses frequency carrier masks to approximate the Hlog of a given channel, including information regarding bridged taps, attenuation, etc. Scanning, wherein a number of line profiles are used in connection with DSL loops having known configurations, can be used to generate a database or library of loop configuration information. One or more of the line profiles can be used with an unknown DSL loop to generate operational data from the unknown DSL loop that is compared to the loop configuration information in the database, allowing identification of loop configuration information pertaining to the unknown DSL loop. The unknown DSL loop operational data also can be used to determine whether one or more bad splices are present on the unknown DSL loop and, in some cases, the approximate or exact bad splice(s) location(s).
摘要翻译：诸如DSL系统的通信系统配置的估计基于从网元管理系统，协议，用户等收集的操作数据。从系统收集的操作数据可以包括通过元件管理系统协议在ADSL系统中通常可用的操作数据的性能。生成的估计和/或近似可以用于评估系统性能，并且直接或间接地指示/要求改变或者通过发射机和/或通信系统的其它部分来推荐改进操作。可以使用“内部”手段收集数据和/或其他信息，或者可以通过电子邮件和/或其他“外部”手段从系统元件和组件获得。模型的准确性的可能性可以基于系统性能的各种数据，信息和/或指示符，例如观察到的正常操作数据，测试数据和/或显示基于刺激信号的操作性能的提示操作数据。这种提示数据的一个示例使用频率载波掩模来近似给定信道的Hlog，包括关于桥接抽头，衰减等的信息。其中与已知配置的DSL环路结合使用多个线路简档的扫描可以是用于生成一个数据库或库的循环配置信息。一个或多个线路配置文件可以与未知的DSL环路一起使用，以从未知的DSL环路生成与数据库中的环路配置信息进行比较的操作数据，从而允许识别与未知DSL环路有关的环路配置信息。未知的DSL环路操作数据还可以用于确定未知DSL环路上是否存在一个或多个坏接头，并且在某些情况下，确定是否存在近似或确切的坏接头位置。

44. 发明申请

WO2005078951A1 COMMUNICATION CHANNEL CAPACITY ESTIMATION 审中-公开
标题翻译：通信渠道能力估算
公开(公告)号：WO2005078951A1
公开(公告)日：2005-08-25
申请号：PCT/US2005/004015
申请日：2005-02-11
申请人： AWARE, INC. , LING, Zheng , LUND, Michael, A.
发明人： LING, Zheng , LUND, Michael, A.
IPC分类号： H04B3/46
CPC分类号： H04B3/46 , H04B3/48 , H04L1/243
摘要： Prediction of a channel capacity is accomplished based on a TDR echo without explicitly estimating the topology of the line. The prediction is based on obtaining a measured TDR echo, determining a theoretical TDR echo for a plurality of loop lengths, estimating the equivalent TDR length based on an optimization, updating the equivalent TDR length and utilizing the updated TDR length to predict one or more of the upstream and downstream data rates.
摘要翻译：信道容量的预测是基于TDR回波完成的，而不明确地估计线路的拓扑。该预测基于获得测量的TDR回波，确定多个环路长度的理论TDR回波，基于优化估计等效TDR长度，更新等效TDR长度并利用更新的TDR长度预测一个或多个上下游数据速率。

45. 发明申请

WO01067729A1 TECHNIQUE FOR ESTIMATION OF A SUBSCRIBER LINE INSERTION LOSS 审中-公开
标题翻译：用户估价订户插入损失的技术
公开(公告)号：WO01067729A1
公开(公告)日：2001-09-13
申请号：PCT/GB2001/000936
申请日：2001-03-05
IPC分类号： H04B3/48 , H04M3/30
CPC分类号： H04M3/306 , H04B3/48 , H04M3/2209 , H04M3/30
摘要： A method and apparatus for pre-qualifying lines with respect to estimating the insertion loss of the line is presented. End-to-end insertion loss at high frequencies is estimated from measurements made at low frequencies through the voice switch at the central office at a telephone company. An AC voltage waveform is applied to the telephone line being tested. Real and imaginary components of the resultant waveform are measured. These measurements are captured and used to estimate the insertion loss of the telephone line at frequencies in the range of 40 kHz to 300 kHz.
摘要翻译：提出了一种用于对线的插入损耗估计进行预先排列的方法和装置。通过电话公司中心局的语音切换在低频率下进行测量，估计高频端对端插入损耗。交流电压波形被施加到被测试的电话线上。测量所得波形的实部和虚部。这些测量被捕获并用于估计在40kHz至300kHz范围内的频率处的电话线的插入损耗。

46. 发明申请

WO00030272A2 METHOD AND DEVICE FOR PRECISE MEASUREMENT OF RETURN LOSS OVER A WIDE DYNAMIC RANGE 审中-公开
标题翻译：用于精确测量宽动态范围内的返回损失的方法和装置
公开(公告)号：WO00030272A2
公开(公告)日：2000-05-25
申请号：PCT/DK1999/000632
申请日：1999-11-15
IPC分类号： H04B3/48 , H04W24/00 , H04W84/04 , H04W88/08 , H04B3/00
CPC分类号： H04B3/48 , H04W24/00 , H04W84/042 , H04W88/08
摘要： The invention describes a method and an apparatus for extending the dynamic range when measuring return loss on antennas, e.g. on base stations for cellular phone. The invention has only one common variable attenuation/gain element (102) and one common detector (103). This one branch is time multiplexed between FWD (21) and REV (11) sensing part of the directional coupler (DC) by switch means (101). The output of the common detector (103) is time multiplexed to storing means (14, 24) by switch means (104). FWD DC-value (23) is compared to reference value (71) in regulation means (72) and control signal (73) is lead to common variable gain/attenuation means (102). Switch control (105) operate the multiplex switches (101 and 104). Calculating means (31) calculate return loss from FWD and REV DC-values (23 and 13). Only one common branch for both FWD and REV signals is used. This one branch has exactly the same attenuation/gain, frequency characteristic and temperature profile for REV signal as for FWD signal. In principle infinity dynamic range can be obtained.
摘要翻译：本发明描述了一种在天线测量回波损耗时扩展动态范围的方法和装置，例如，在手机基站上。本发明仅具有一个共同的可变衰减/增益元件（102）和一个公共检测器（103）。该分支在FWD（21）和REV（11）之间通过开关装置（101）对定向耦合器（DC）的一部分进行时间复用。公共检测器（103）的输出通过开关装置（104）被时间复用到存储装置（14,24）。将FWD DC值（23）与调节装置（72）中的参考值（71）进行比较，并且控制信号（73）导致公共可变增益/衰减装置（102）。开关控制（105）操作多路复用开关（101和104）。计算装置（31）计算FWD和REV DC值（23和13）的回波损耗。仅使用FWD和REV信号的一个公共分支。该分支具有与FWD信号完全相同的REV信号的衰减/增益，频率特性和温度分布。原则上可以获得无穷大的动态范围。

47. 发明申请

WO98048525A2 AN ARRANGEMENT IN A SUBSCRIBER LINE INTERFACE CIRCUIT 审中-公开
标题翻译：订户线接口电路中的布置
公开(公告)号：WO98048525A2
公开(公告)日：1998-10-29
申请号：PCT/SE1998/000722
申请日：1998-04-21
IPC分类号： G01R15/14 , G01R19/252 , H03K3/0231 , H04B3/46 , H04B3/48
CPC分类号： G01R19/252 , H04B3/48
摘要： In a subscriber line interface circuit connected to a telephone line having a high potential wire and a low potential wire, an arrangement for generating a signal for determining the line voltage comprises means (7, 10, 11) for alternately charging a capacitor (6), by means of a first DC current, to a first voltage, and discharging the capacitor (6), by means of a second DC current, to a second voltage. Hereby, a sawtooth wave having an amplitude corresponding to the difference between the first and second voltages is produced. This sawtooth wave is converted to a pulse train related to the line voltage, from which the line voltage can be determined.
摘要翻译：在连接到具有高电位线和低电位线的电话线的用户线接口电路中，用于产生用于确定线路电压的信号的装置包括用于交替地对电容器（6）充电的装置（7,10,11）通过第一直流电流转换成第一电压，并且通过第二直流电流将电容器（6）放电到第二电压。因此，产生具有对应于第一和第二电压之间的差的振幅的锯齿波。该锯齿波被转换为与线路电压相关的脉冲串，从该电压可以确定线路电压。

48. 发明申请

WO9423366A3 POWER LINE COMMUNICATIONS ANALYZER 审中-公开
标题翻译：电力线通信分析仪
公开(公告)号：WO9423366A3
公开(公告)日：1995-08-17
申请号：PCT/US9402065
申请日：1994-02-23
申请人： ECHELON CORP
发明人： STEWART J MARCUS , RILEY GLEN M , SUTTERLIN PHILIP H , ANDRUS MARIE E , HURLBUT AMY O , TORMEY MILTON T
IPC分类号： G01R31/28 , G01R31/42 , G06F11/09
CPC分类号： H04B3/546 , G01R31/42 , H04B3/48 , H04B3/542 , H04B2203/5408 , H04B2203/5454 , H04B2203/5458
摘要： A power line communications analyzer (PLCA) (210, 820) providing a signal strength metering system and selectable signal attenuation functions and a means for adjusting the transmitting unit's attenuation and measuring error rate without the need for a user to be present at both the sending and receiving locations under test is disclosed. Each PLCA is coupled to a power line communication network via an electrical outlet and power lines. In actual operation, one of the PLCAs acts as a data transmitter (120, 122) and the other PLCA acts as a data receiver (121, 123). The mode of operation of the PLCA comprises control logic (310) that receives command inputs from a keypad (342), generates data packets for transmission on the power line communication network, receives and analyzes data packets received from the power line communication network, detects the power line signal and/or noise level and drives the LED display (344) accordingly, and displays packet transmission information on an LCD display (340).

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