公开(公告)号：EP1760903B1

公开(公告)日：2008-12-10

申请号：EP05766865.9

申请日：2005-07-20

申请人： Huawei Technologies Co., Ltd.

发明人： YAN, Zhiguo ,  XIAO, Ruijie ,  ZHOU, Jun ,  YANG, Tao

IPC分类号： H04M3/30 ,  H04B1/74

CPC分类号： H04M3/304 ,  H04M11/062

摘要： The present invention discloses a wide band test grab wire unit, a wide band test grab wire board and a wide band test device. The said wide band test grab wire unit, comprises the first, second and third test end, signal separator (14), the first, second and third switch, and the first, second and third interface end; the said wide band test grab wire board, comprises at least two wide band test grab wire units and internal test bus groups, and the forth, fifth and sixth switch, the said internal test bus group comprises internal inter-test bus, internal extra-test bus and internal secondary test bus; the said wide band test device, comprises at least one wide band test grab wire board, the eighth and ninth switch, test control module, and the external inter-test bus and external extra-test bus, the said buses are connected with the said test control module; the said wide band test device in present invention has simple structure and low cost, and N+1 copy function can be implemented easily between the ends inside the board, the reliability of communication can be further increased.

公开(公告)号：EP1693985B1

公开(公告)日：2008-11-19

申请号：EP04789869.7

申请日：2004-10-25

申请人： Huawei Technologies Co., Ltd.

发明人： LIANG, Yong2Huawei Administration Building

IPC分类号： H04M3/30

CPC分类号： H04M3/304 ,  H04L12/2878 ,  H04L43/50

公开(公告)号：EP1982432A1

公开(公告)日：2008-10-22

申请号：EP06704611.0

申请日：2006-01-31

申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)

发明人： LINDQVIST, Fredrik ,  FERTNER, Antoni ,  BÖRJESSON, Per, Ola

IPC分类号： H04B3/46 ,  H04M3/30 ,  G01R31/08

CPC分类号： H04M3/306 ,  H04B3/46

摘要： The present invention relates to investigation of a transmission line with cable segments (Si, ..., SN) by loop topology identification. A measuring equipment is connected at a first measurement plane Pi and means (1;5) are provided for transmitting a probing signal into the cable, and for handling the reflected signal, calculating means (6) calculates the equivalent total input impedance, e.g. Z(1)in (f) . Calculating means are adapted to, for i=, ...,N, establishing the lengths of the cable segment Si , the distance di from a measurement plane PI to the subsequent one Pi.+1 Algorithm executing means (7) are adapted to use a model for calculating the characteristic impedance and the propagation constant of segment Si - based on unknown parameters represented as a respective vector θι (Si) to set up a criteria function Ji associated with said model and to, for each Si, apply Ji on the model, iteratively calculate the respective equivalent input impedance, of the respective Ji using the calculated characteristic impedance Zo(f, θι) of the preceding segment Si, the propagation constant Ϝ(f, θι) with an estimated length of the respective preceding segment Si and its equivalent input impedance and to transform the total input impedance of the subsequent plane Pi.+1 such that a loop topology identification is provided iteratively.

公开(公告)号：EP1926273A3

公开(公告)日：2008-08-27

申请号：EP07121656.8

申请日：2007-11-27

申请人： Huawei Technologies Co., Ltd.

发明人： J, Yuan c/o Huawei Technologies Co., Ltd. ,  Fang, Liming c/o Huawei Technologies Co., Ltd. ,  W, Yu

IPC分类号： H04L27/26 ,  H04M3/30

CPC分类号： H04L5/023 ,  H04B3/48 ,  H04B17/327 ,  H04L5/0005 ,  H04L5/0037 ,  H04L5/0064

摘要： A method for determining transmit power spectral density (PSD), includes: calculating time sharing parameters corresponding to transmission patterns for all users in each frequency band; and determining transmit PSD according to the transmission patterns and the time sharing parameters. A device for determining a transmit PSD including a calculation module and a PSD determining module is disclosed as well. Using the solution, the time for determining the transmit PSD can be saved.

摘要翻译： 一种确定发射功率谱密度（PSD）的方法，包括：计算与每个频带中所有用户的传输模式对应的时间共享参数; 并根据传输模式和时间共享参数确定传输PSD。 还公开了一种用于确定包括计算模块和PSD确定模块的发送PSD的设备。 使用该解决方案，可以保存确定传输PSD的时间。

公开(公告)号：EP1926273A2

公开(公告)日：2008-05-28

申请号：EP07121656.8

申请日：2007-11-27

申请人： Huawei Technologies Co., Ltd.

发明人： J, Yuan c/o Huawei Technologies Co., Ltd. ,  Fang, Liming c/o Huawei Technologies Co., Ltd. ,  W, Yu

IPC分类号： H04L27/26 ,  H04M3/30

CPC分类号： H04L5/023 ,  H04B3/48 ,  H04B17/327 ,  H04L5/0005 ,  H04L5/0037 ,  H04L5/0064

摘要： A method for determining transmit power spectral density (PSD), includes: calculating time sharing parameters corresponding to transmission patterns for all users in each frequency band; and determining transmit PSD according to the transmission patterns and the time sharing parameters. A device for determining a transmit PSD including a calculation module and a PSD determining module is disclosed as well. Using the solution, the time for determining the transmit PSD can be saved.

摘要翻译： 一种用于确定发射功率谱密度（PSD）的方法，包括：计算与每个频带中所有用户的传输模式对应的时间共享参数; 以及根据传输模式和时间共享参数确定传输PSD。 还公开了一种用于确定包括计算模块和PSD确定模块的发送PSD的装置。 使用该解决方案，可以节省确定传输PSD的时间。

公开(公告)号：EP1850498A4

公开(公告)日：2008-03-26

申请号：EP06705736

申请日：2006-03-10

申请人： HUAWEI TECH CO LTD

发明人： ZHOU JUN

IPC分类号： H04B3/00 ,  H04L1/24 ,  H04L5/14 ,  H04L12/28 ,  H04L25/24 ,  H04L27/26 ,  H04M3/18 ,  H04M3/30 ,  H04M3/40 ,  H04M11/06 ,  H04M19/00

CPC分类号： H04L27/2626 ,  H04B3/06 ,  H04L5/1438 ,  H04W52/34

摘要： A method for extending signal transmission distance in ADSL, by promoting the downlink power spectral density of ADSL signal in the office end or the uplink power spectral density of ADSL signal in the user end or both of them; a system for extending signal transmission distance in ADSL, comprises: adjustment unit of power spectral density and sending unit. It enlarges the coverage of the ADSL signals, and promotes the power spectral density of downlink ADSL signals only in the office end, without any update in user end, therefore reduces the cost. Further, it extends the signal transmission distance in ADSL, by promoting the power spectral density on transmission control signal.

公开(公告)号：EP1202541B1

公开(公告)日：2008-01-16

申请号：EP01402704.9

申请日：2001-10-18

申请人： Alcatel Canada Inc.

发明人： Wallace, Donovan ,  Dickinson, Geoffrey ,  Jawanda, Kanwaljeet ,  Seelemann, Sven A. ,  Gillan, Robert

IPC分类号： H04M11/06 ,  H04M3/30

CPC分类号： H04Q1/10 ,  H04M3/303 ,  H04M2203/055 ,  H04Q1/028 ,  H04Q1/155 ,  H04Q1/20

公开(公告)号：EP1503556A3

公开(公告)日：2007-12-26

申请号：EP04011777.2

申请日：2004-05-18

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

发明人： Noma, Nobuhiko ,  Takagi, Genzo ,  Nagai, Motoyoshi ,  Araki, Mitsuhiro ,  Atsuta, Akira

IPC分类号： H04L27/26 ,  H04M3/30 ,  H04B3/46

CPC分类号： H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/1438 ,  H04L27/2626 ,  H04L27/2647

摘要： A processor of a transceiver estimates a communication distance to an opposing ADSL modem apparatus by detecting a reception level of a REVERB signal in accordance with the ITU-T regulated G.992.1 or G. 992.2. Based on the estimated communication distance, and by referring to a table showing attenuation of signal energy (stored in a RAM), the signal energy in a high frequency band (among the signal energy assigned to transmitting signals) is concentrated into a low frequency band during the communication.

公开(公告)号：EP1602225B1

公开(公告)日：2007-10-17

申请号：EP04712500.0

申请日：2004-02-19

申请人： ADC GMBH

发明人： FADLER, Georges ,  FRANZKE, Jörg

IPC分类号： H04M3/30 ,  H04Q1/14

CPC分类号： H04Q1/14 ,  H04M3/30 ,  H04Q1/145 ,  H04Q1/20 ,  H04Q2213/13003 ,  H04Q2213/13039 ,  H04Q2213/13076 ,  H04Q2213/13092 ,  H04Q2213/1316

摘要： The invention relates to a distributor (1) for use in telecommunications and data technology, whereby the distributor (1) comprises a system side and a subscriber side, which are each formed by at least one distributor connecting module (2, 3). The distributor connecting modules (2, 3) each have a routing side via which the electrical connections between the system side and the subscriber side can be changed. The distributor comprises an access matrix (15) via which the electrical connections between the system side and the subscriber side are established. The electrical connection is connected through by means of the access matrix (15) or, optionally, is connected to a test unit (16) via a test bus (17). The access matrix (15) is placed in the distributor connecting module (3, 2) of the subscriber side or of the system side. The invention also relates to a correspondingly adapted distributor connecting module (2, 3).

公开(公告)号：EP1808001A1

公开(公告)日：2007-07-18

申请号：EP05804036.1

申请日：2005-09-30

申请人： Teradyne, Inc.

发明人： AFZAL, Muhammad A. ,  WARNER, Roderick ,  ROSEN, Joseph S. ,  BAUER, Frank R.

IPC分类号： H04M3/30 ,  H04M3/28

CPC分类号： H04M3/306 ,  H04B3/46

摘要： A test system and method for performing DSL assessments of a telephone line along a prescribed test path is disclosed. The disclosed test system and method includes a loop diagnostic test unit adapted for testing said telephone line using narrow-band and mid-band frequency test signals; a test system controller and a test system server to provide the DSL assessments to a user via an appropriate interface. In addition, the disclosed analysis methods utilize primary line condition information, secondary line condition information, historical line information, together with real-time measurements and external data inputs to perform line imbalance analysis, fault identification analysis, trend analysis, and jurisdictional analysis all of which have relevance to quality, performance and assurance of DSL service through the telephone line.