公开(公告)号：EP2959539A1

公开(公告)日：2015-12-30

申请号：EP13875681.2

申请日：2013-02-25

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： TROJER, Elmar ,  BERG, Miguel ,  ERIKSSON, Per-Erik ,  LU,Chenguang ,  TIDBLAD, Olof V

IPC分类号： H01Q1/12

CPC分类号： H01Q1/1221 ,  H01Q1/007

摘要： The present invention relates to a small-cell antenna arrangement. The antenna arrangement comprises an antenna mounting unit and an active antenna element. The antenna mounting unit is arranged with fastening means from which the active antenna element is detachable. Further, the antenna mounting unit is arranged with a signalling interface via which signals are arranged to be transferred between the active antenna element and a remotely located base station with which the antenna arrangement communicates. Moreover, the antenna mounting unit is arranged with an interface via which the active antenna element is powered.

公开(公告)号：EP2870823A1

公开(公告)日：2015-05-13

申请号：EP12733109.8

申请日：2012-07-05

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： CHENGUANG, Lu ,  BERG, Miguel ,  BERGQVIST, Ralf ,  ERIKSSON, Per-Erik ,  ÖSTERLING, Jacob ,  TROJER, Elmar

IPC分类号： H04W88/08

CPC分类号： H04W72/085 ,  H04B1/0071 ,  H04B3/487 ,  H04W16/10 ,  H04W16/32 ,  H04W24/02 ,  H04W72/0453 ,  H04W84/045 ,  H04W88/085

摘要： A first network node of a cellular system is configured for communication with a second network node over a twisted pair wire. The first network node includes a receiver for receiving, over the twisted pair wire, an intermediate frequency signal from the second network node, which intermediate frequency signal has been converted from a high frequency signal having a frequency higher than the frequency of the intermediate frequency signal by the second network node, and a down-converter for converting the intermediate frequency signal to a low frequency signal having a frequency lower than the frequency of the intermediate frequency signal. The first network node also includes an up-converter for converting a received low frequency signal to an intermediate frequency signal having a frequency higher than the frequency of the low frequency signal.

公开(公告)号：EP2686966A1

公开(公告)日：2014-01-22

申请号：EP11861867.7

申请日：2011-03-18

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： FERTNER, Antoni ,  BERG, Miguel ,  CEDERHOLM, Daniel ,  ERICSON, Klas

IPC分类号： H04B3/30 ,  H04B15/02

CPC分类号： H04B3/46

摘要： Method and arrangement for supporting transmission over a Digital Subscriber Line (xDSL) in the presence of Repetitive Electrical Impulse Noise (REIN). The method involves obtaining a power spectrumof the measured Quiet Line Noise (QLN) for the xDSL,where it is assumed that the QLN comprises a REIN contribution. Aperiodicityis detectedin the QLN power spectrum,and the repetition interval of the periodicityis determined.The power spectrumof the REIN is then estimated, based on the repetition interval of said periodicity. Thus, information associated with the estimated REIN power spectrummay be provided for use by a communication unit, such that mitigation of potentially unfavorable influence/effects of the REIN on said transmission over the xDSL.

公开(公告)号：EP2936694A1

公开(公告)日：2015-10-28

申请号：EP12818659.0

申请日：2012-12-21

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： LU, Chenguang ,  ANDREASON, Tomas ,  BERG, Miguel ,  ERIKSSON, Per-Erik ,  TROJER, Elmar

IPC分类号： H04B3/32 ,  H04M3/18 ,  H04M3/34 ,  H04M11/06 ,  H04B3/46

CPC分类号： H04M3/2209 ,  H04B3/32 ,  H04B3/487 ,  H04M3/18 ,  H04M3/34 ,  H04M11/062

摘要： There is provided mitigation of disconnect events in a vectoring based digital subscriber line, DSL, system. A method performed by a digital subscriber line access multiplexer,DSLAM, comprises detecting a loss of signal or disconnect event of a line in a vectored group of DSL lines,the loss of signal or disconnect event causing a negative impact on the DSL system. The method further comprises detecting a change in at least one downstream, DS, crosstalk coefficient of at least one line in said vectored group of DSL lines. The method further comprises determining a magnitude of said change. The method further comprises determining where the loss of signal or disconnect event has occurred by processing precoding coefficients of the vectored group of DSL lines. The method further comprises determining,on basis of the determined magnitude and where the loss of signal or disconnect event has occurred, an action to be performed by the DSLAM so as to mitigate for said negative impact.

摘要翻译： 提供了一种基于矢量化的数字用户线DSL系统中的断开连接事件的缓解。 由数字用户线接入复用器DSLAM执行的方法包括检测DSL线路组中的线路的信号丢失或断开事件，信号丢失或断开事件对DSL系统造成负面影响。 该方法还包括检测DSL线路的所述向量组中的至少一行的至少一个下行DS串扰系数的变化。 该方法还包括确定所述变化的大小。 该方法还包括通过处理DSL线路的矢量组的预编码系数来确定信号丢失或断开事件的发生位置。 该方法还包括基于所确定的幅度和发生信号或断开事件的丢失的位置确定由DSLAM执行的动作，以减轻所述负面影响。

公开(公告)号：EP2795351A1

公开(公告)日：2014-10-29

申请号：EP12818662.4

申请日：2012-12-21

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： ERICSON, Klas ,  ALMEIDA, Henrik ,  BERG, Miguel ,  BÖRJESSON, Per Ola ,  FERTNER, Antoni ,  LINDQVIST, Fredrik

IPC分类号： G01R27/32 ,  G01R35/00 ,  H04B3/46 ,  H04M3/30

CPC分类号： H04B3/46 ,  G01R27/32 ,  G01R35/005 ,  H04M3/304 ,  H04M11/062

摘要： Method, arrangement and devices for calibration of a line driving device, such as a DSLAM, having a line port. The method comprises deriving of a first parameter vector, PVinf, for example Hinf. The parameter vector PVinf is derived by performing, at a first site, an echo measurement on the line driving device while the line porton said line driving device is open. The method further comprises calibrating the line driving device based on the first parameter vector PVinf and a second parameter vector PVref, which second parameter vector is based on information on echo measurements performed on at least one reference line driving device.

公开(公告)号：EP2258073A1

公开(公告)日：2010-12-08

申请号：EP09728675.1

申请日：2009-02-11

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： BERG, Miguel ,  ERIKSSON, Per-Erik ,  KÖLHI, Johan

IPC分类号： H04L12/10 ,  H04L12/28 ,  H04L12/18 ,  H04M11/06

CPC分类号： H04L47/29 ,  H04L12/10 ,  H04L12/12 ,  H04L12/185 ,  H04L12/1881 ,  H04L12/2874 ,  H04M11/062 ,  Y02D50/40 ,  Y02D50/44

摘要： The present invention relates to a method and an arrangement for the power management of a digital communication line such as a digital subscriber line DSL. A problem addressed by the invention is that the transitioning of the digital subscriber line from a low transmission power state to a high transmission power state can cause disturbance to adjacent lines. This problem is solved by the current invention by an access node AN that is arranged to step-wise increase the power state until the high transmission power state has been reached. The invention also comprises embodiments of monitoring and detecting traffic events that serve as triggers of the transitioning.

摘要翻译： 本发明涉及一种用于数字通信线路（如数字用户线路DSL）的电力管理的方法和装置。 本发明解决的一个问题是数字用户线从低发射功率状态转换到高发射功率状态可能导致对相邻线路的干扰。 本发明由接入节点AN解决，接入节点AN被布置成逐步增加功率状态直到达到高发射功率状态。 本发明还包括监视和检测用作转换触发器的交通事件的实施例。

公开(公告)号：EP2494700B1

公开(公告)日：2015-10-21

申请号：EP09799435.4

申请日：2009-12-17

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： BERG, Miguel ,  CEDERHOLM, Daniel

IPC分类号： H04B3/46 ,  H04B3/487

CPC分类号： H04B3/487

公开(公告)号：EP2504931A2

公开(公告)日：2012-10-03

申请号：EP10827228.7

申请日：2010-01-08

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： FERTNER, Antoni ,  BÖRJESSON, Per Ola ,  ERICSON, Klas ,  LINDQVIST, Fredrik ,  PAPPA, Ioanna ,  HÖST, Stefan ,  BERG, Miguel

IPC分类号： H04B3/46 ,  G01R31/02 ,  G01R31/08

CPC分类号： H04B3/466 ,  H04M3/26

摘要： The present invention relates to an arrangement for analyzing transmission line properties. Measurement data providing means (10) provide data of a first frequency dependent line property, line property calculation arrangement (20) with model handling means (21A), a Hubert transform handler (22) and line property determination means (23) calculate said first property based on model parameters, line resistance at 0 frequency, roc r cut-off frequency, v, line capacitance C∞r and line inductance ∑^. The line model handling means (21A) calculates the line inductance L(J) via a Hubert transform of Q(f/v)r relating line resistance R(J) to roc such as formula (I). The Hilbert transform values are calculated using a parameterized closed form expression for the Hubert transform or they are tabulated. The line property determination means (23; 23A) calculates the first property and criteria function application means (40) uses the measured first property and the calculated first property for model parameters to find optimized numerical model parameter values.

公开(公告)号：EP2494700A1

公开(公告)日：2012-09-05

申请号：EP09799435.4

申请日：2009-12-17

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： BERG, Miguel ,  CEDERHOLM, Daniel

IPC分类号： H04B3/46

CPC分类号： H04B3/487

摘要： An apparatus for estimating far-end crosstalk R
DS-FEXT, i (f
d ) or an end (C
1 -2) of a communication line (C1) furthest from a transceiver (10-1 ) to which the communication line (C
1 ) is connected. The apparatus is configured to: measure upstream noise R
US-
Noise (f
u ) at an upstream frequency (f
u ), the up¬ stream noise R
US-
Noise (f
u ) induced in the communication line (C1) due to the crosstalk; select a downstream frequency (fd) for which the far-end crosstalk R
DS-FEXT, i (f
d ) is to determined; and estimate the far-end crosstalk R
DS-FEXT, i (f
d ) ' as a function of the upstream Noise R
US-
Noise (f
u ), the up¬ stream frequency (f
u) and the downstream frequency (f
d) . An apparatus reversing upstream and downstream features, a system, a computer readable medium and related methods are also described.