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1. 发明公开

EP2007071A4 AN EMULATION TEST DEVICE AND METHOD 有权
标题翻译：仿真测试装置和方法
公开(公告)号：EP2007071A4
公开(公告)日：2009-04-15
申请号：EP07702175
申请日：2007-01-23
申请人： HUAWEI TECH CO LTD
发明人： ZHANG FUWANG , XU GUIJIN
IPC分类号： H04L12/26
CPC分类号： H04M3/304 , H04L43/50
摘要： An emulation test device includes a communication module and a test module. An emulation test method includes that the test device obtains the information of the test to be performed according to the test command received, and obtains the port type of DSLAM to be tested or the information of MODEM to be tested according to the information of the test to be performed; then the test device informs the grab wire device to connect the line to be tested with the test device, the xTU-C and xTU-R emulation test is performed according to the information of the test to be performed and the port type of DSLAM to be tested or the information of MODEM to be tested and the test result is reported, thereby not only the xTU-C emulation test but also the xTU-R emulation test for the subscriber end MODEM can be performed at the same site.

2. 发明公开

EP2387190A4 XDSL TIME SYNCHRONIZATION METHOD, APPARATUS AND SYSTEM 有权转让
标题翻译： XDLS-ZEITSYNCHRONISIERUNGSVERFAHREN，-VORRICHTUNG UND G UND＆8209; SYSTEM
公开(公告)号：EP2387190A4
公开(公告)日：2012-05-23
申请号：EP09838135
申请日：2009-11-18
申请人： HUAWEI TECH CO LTD
发明人： XU GUIJIN , LONG GUOZHU , XIAO RUIJIE , ZHAO ZHILEI , WU XUYONG , JIA YUCHEN
IPC分类号： H04L27/26 , H04J3/06 , H04L7/10 , H04M11/06
CPC分类号： H04L7/0041 , H04J3/0638 , H04M11/062

3. 发明公开

EP2006692A4 A SAMPLE CHANNEL SIGNAL CALIBRATING METHOD FOR IMPEDANCE TESTING AND AN IMPEDANCE TESTING METHOD 审中-公开
标题翻译：样品KANALSIGNALKALIBRATIONSVERFAHREN用于测试与阻抗阻抗测试程序
公开(公告)号：EP2006692A4
公开(公告)日：2009-04-29
申请号：EP07720245
申请日：2007-02-13
申请人： HUAWEI TECH CO LTD
发明人： LI FEI , XU GUIJIN
IPC分类号： G01R27/02 , H04B3/46
CPC分类号： H04B3/46 , G01R27/04
摘要： A sample channel signal calibrating method for impedance testing,includes: testing the voltage value of the same testing signal using at least two sampling channels, and take the obtained ratio value of voltages as a channel difference parameter of the sample channels; connecting a tested impedance to the voltage output terminal of the sample resistance of the signal source output channel, and testing the input voltages of an end of the sampling resistance respectively in the at least two sample channels to obtain respective voltage testing values; obtaining the ratio of each voltage testing value to the corresponding real voltage value based on the channel difference parameter and the voltage testing values. An impedance testing method is based on the calibrating method, and in this method,making the ratio substituted into the impedance calculating formula of the tested impedance to obtain the impedance value. In the present invention,the impedance testing result is calibrated by sampling channel difference parameter.

4. 发明授权

EP2966826B1 METHOD, APPARATUS, AND SYSTEM FOR TIME SYNCHRONIZATION OF XDSL 有权
公开(公告)号：EP2966826B1
公开(公告)日：2018-01-10
申请号：EP15178976
申请日：2009-11-18
申请人： HUAWEI TECH CO LTD
发明人： XU GUIJIN , LONG GUOZHU , XIAO RUIJIE , ZHAO ZHILEI , WU XUYONG , JIA YUCHEN
IPC分类号： H04L27/26 , H04J3/06 , H04L7/10 , H04M11/06
CPC分类号： H04L7/0041 , H04J3/0638 , H04M11/062
摘要： The present invention provides a method, an apparatus, and a system for time synchronization of an xDigital Subscriber Line (xDSL). The method includes: transmitting, by a customer premises equipment (CPE), a first symbol to a central office (CO) equipment, and obtaining time Ts2 indicating the moment that the first symbol is transmitted; receiving, by the CPE, a second symbol transmitted by the CO, and obtaining time Ts1 indicating the moment that the second symbol is received; obtaining, by the CPE obtains time Tm2 indicating the moment that the first symbol is received by the CO and time Tm1 indicating the moment that the second symbol is transmitted by the CO; the CPE calculates an offset between a clock of the CPE and a clock of the CO according to Ts1, Ts2, Tm1, Tm2 and a delay of the CPE; and the CPE adjusts the clock of the CPE according to the offset to achieve synchronization. According to the present invention, by adjusting the time of the clock of the CPE and the time of the clock of the CO, the offset between the clock of the CPE and the clock of the CO can be obtained accurately to effectively achieve time synchronization between the CPE and the CO.

5. 发明公开

EP1819098A4 METHOD AND DEVICE FOR TESTING TRANSMISSION LOSS OF COMMUNICATION LINE 有权
标题翻译：方法和装置确定通信链路的传输损耗
公开(公告)号：EP1819098A4
公开(公告)日：2008-04-16
申请号：EP06805118
申请日：2006-10-31
申请人： HUAWEI TECH CO LTD
发明人： JIN ZHAOGUO , REN XIONGWEI , XU GUIJIN , HU QINGHU , JIA RONGHUA
IPC分类号： H04L12/28 , H04B3/48 , H04L25/02 , H04M3/30
CPC分类号： H04M3/306 , H04B3/48 , H04L25/022 , H04L27/2647 , H04L43/00 , H04L43/022 , H04L43/0847 , H04L43/10 , H04L43/50
摘要： A method for testing transmission loss of communication line, applied for modem data communications, comprises the steps of : the voltage signal of the handshake carrier signal, which is sent by the client modem, is sampled by the device for testing transmission loss of communication line at the network side; the transmission loss of the carrier channel corresponding to the modem is calculated based on the acquired sampling data; the transmission losses of the other channels are calculated by the transmission loss of the carrier channel. The device for testing the transmission loss of communication line is also provided. Thanks to the method and device of present invention, the double loops testing is realized, the result is exact, the method is simple, the cost is low, and easy to realize.
摘要翻译：本发明光盘宽松的通过调制解调器，包括应用到数据通信的通信线路测试的传输损耗的方法，以在由用户调制解调器发送局端握手载波信号的电压信号的样本; 计算载波信道对应于所述订户调制解调器gemäß到样品中的传输损耗; 计算所述通信线路gemäß到所述载波信道的传输损耗的其它信道的传输损耗。用于通信线路测试的传输损耗的装置gibt盘在本发明中游离缺失。通过本发明的游离缺失方法和装置，光盘实现DELT。测试结果准确，方法简单，成本低，实施简单。

6. 发明公开

EP1650900A4 A USER LINE TESTING SYSTEM, A WIDEBAND LINE CARD AND A WIDEBAND AND NARROWBAND COMMUNICATION SYSTEM 有权
标题翻译：用户连接测试系统，宽带接口卡和宽带和窄带通信系统
公开(公告)号：EP1650900A4
公开(公告)日：2006-12-20
申请号：EP04738386
申请日：2004-07-12
申请人： HUAWEI TECH CO LTD
发明人： HUANG MING , XU GUIJIN
IPC分类号： H04L12/26 , H04L12/28 , H04M3/00 , H04M3/30
CPC分类号： H04M3/306 , H04L12/2896 , H04L43/50 , H04M3/007 , H04M3/2209 , H04M3/304
摘要： The present invention provides two user line testing systems, three wideband and narrowband communication systems and a wideband line card. The user line testing systems of the present invention mount a test module in the central office wideband apparatus, so as to reduce the complexity and cost of the user line testing systems. The present invention provides a wideband line card by mounting the catching line relay on it, and designs the LPF card to the passive device to reduce the corresponding cost and reduce the complexity and its user’s cost of central office wideband apparatus with the card. Also, by using the user line testing systems and the wideband line card in three wideband and narrowband communication systems provided by the present invention, it reduces the complexity of the wideband and narrowband communication systems and its user’s cost. The third wideband and narrowband communication system of the present invention comprises the wideband line card without the catching line relay, and the wideband line card with the catching line relay, so it has preferable compatibility.
摘要翻译：本发明提供两个用户线路测试系统，三个宽带/窄带电信系统和宽带线路卡。在本发明的用户线测试系统中，测试模块被配置为在CO宽带设备，降低了复杂性和用户线路测试系统的成本。在由本发明所提供的宽带线路卡，线捕捉继电器在宽带线路卡配置，以便做了LPF卡可以被设计为被动装置，减少相应的成本，因此，使用这个宽带线路卡有助于降低的复杂性 CO宽带设备和其用户成本。在这三个宽带/窄带57电讯

7. 发明公开

EP2506640A4 CLOCK SYNCHRONIZATION METHOD, CUSTOMER PREMISES EQUIPMENT AND CLOCK SYNCHRONIZATION SYSTEM 有权
标题翻译：科特迪瓦广播电台
公开(公告)号：EP2506640A4
公开(公告)日：2013-01-23
申请号：EP11780226
申请日：2011-05-16
申请人： HUAWEI TECH CO LTD
发明人： XU GUIJIN , FENG RUZHOU , LONG GUOZHU , LIU JIANHUA
IPC分类号： H04W56/00 , H04J3/06
CPC分类号： H04J3/0638 , H04M11/062
摘要： A clock synchronization method, customer premises equipment and a clock synchronization system are provided. The clock synchronization method includes: reading, by customer premises equipment, a first time stamp when receiving a first specific position of a first DMT signal sent by central office equipment; reading a second time stamp when sending a second specific position of a second DMT signal; receiving a third time stamp and a fourth time stamp that are sent by the central office equipment through a data information channel, wherein the third time stamp is read when the central office equipment sends the first specific position of the first DMT signal, and the fourth time stamp is read when the central office equipment receives the second specific position of the second DMT signal; and adjusting a clock of the customer premises equipment according to the first time stamp, the second time stamp, the third time stamp and the fourth time stamp, so that the clock of the customer premises equipment is synchronized with a clock of the central office equipment. The method, the equipment and the system improve precision of clock synchronization and meet a high-precision requirement of an XDSL system on the clock synchronization.
摘要翻译：提供时钟同步方法，客户端设备和时钟同步系统。时钟同步方法包括：当接收到由中心局设备发送的第一DMT信号的第一特定位置时，由客户驻地设备读取第一时间戳; 当发送第二DMT信号的第二特定位置时读取第二时间戳; 接收由中心局设备通过数据信息信道发送的第三时间戳和第四时间戳，其中当中心局设备发送第一DMT信号的第一特定位置时，读取第三时间戳，并且第四时间戳当中心局设备接收到第二DMT信号的第二特定位置时，读取时间戳; 以及根据第一时间戳，第二时间戳，第三时间戳和第四时间戳调整客户驻地设备的时钟，使得客户驻地设备的时钟与中心局设备的时钟同步。该方法，设备和系统提高了时钟同步精度，满足了XDSL系统在时钟同步上的高精度要求。

8. 发明公开

EP2515591A4 METHOD, APPARATUS AND SYSTEM FOR CLOCK SYNCHRONIZATION 有权
标题翻译：方法，装置和系统时钟同步
公开(公告)号：EP2515591A4
公开(公告)日：2013-01-16
申请号：EP11758809
申请日：2011-03-24
申请人： HUAWEI TECH CO LTD
发明人： XU GUIJIN , LONG GUOZHU , FENG RUZHOU
IPC分类号： H04W56/00 , H04J3/06
CPC分类号： H04L7/0012 , H04J3/0638 , H04J3/065
摘要： A clock synchronization method, apparatus, and system are provided according to the embodiments of the present invention. The method includes: receiving time information TM1 transmitted by a central office side, in which the time information TM1 is obtained by the central office side by reading a local clock of the central office side when transmission data at a first designated location starts to be transferred, and the local clock of the central office side is synchronous with the Global Positioning System GPS or the Building Integrated Timing Supply BITS; judging whether transmission data at a second designated location starts to be received, if yes, reading a local clock of the Customer Premise Equipment side to obtain time information TS1; and synchronizing clock frequencies of the central office side and the Customer Premise Equipment side according to the time information TM1 and the time information TS1. Therefore, a network reference clock is not used as a working clock to perform the clock synchronization of a DSL system, and therefore the reliability of a DSL link may be independent from the reliability of the network reference clock.

9. 发明公开

EP2099157A4 APPARATUS AND METHOD FOR DETECTING BRIDGED STATE OF SUBSCRIBER LINE 审中-公开
标题翻译： DEVICE AND METHOD FOR桥式状态的检测的用户连接
公开(公告)号：EP2099157A4
公开(公告)日：2010-01-06
申请号：EP07764214
申请日：2007-07-12
申请人： HUAWEI TECH CO LTD
发明人： JIN ZHAOGUO , JIN LONGBAO , XU GUIJIN , TIAN YUZHOU
IPC分类号： H04L12/26
CPC分类号： H04M11/062 , G01R31/11

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