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    MAIN UNIT AND DISTRIBUTED ANTENNA SYSTEM COMPRISING SAME
    4.
    发明公开
    MAIN UNIT AND DISTRIBUTED ANTENNA SYSTEM COMPRISING SAME 审中-公开

    公开(公告)号：EP3396911A1

    公开(公告)日：2018-10-31

    申请号：EP16881878.9

    申请日：2016-03-28

    申请人： Solid, Inc.

    发明人： KIM, Do Yoon ,  KIM, Hyoung Ho ,  SEO, Kwang Nam

    IPC分类号： H04L25/02 ,  H04L25/10 ,  H04L25/20

    CPC分类号： H04W40/22 ,  H04B3/36 ,  H04B7/155 ,  H04L25/02 ,  H04L25/10 ,  H04L25/20 ,  H04W56/001 ,  H04W88/08

    摘要： There is provided a main unit and a distributed antenna system including the same. The main unit for constituting a distributed antenna system that receives a base station signal from at least one base station, transmits the base station signal to at least one user terminal, and includes a plurality of main units, the main unit includes: a first receiver for receiving a first group of base station signals; a second receiver for receiving a second group of base station signals from another main unit; a signal combiner for combining the first and second groups of base station signals; and a delay compensator for compensating for time delay corresponding to a path between the main unit and the other main unit with respect to the first group of base station signals before combining the first and second groups of base station signals.

    APPARATUS AND METHOD FOR COMPENSATING FOR CLIPPING POWER LOSSES
    5.
    发明公开
    APPARATUS AND METHOD FOR COMPENSATING FOR CLIPPING POWER LOSSES 有权
    DEVICE AND METHOD FOR补偿裁剪功率损耗

    公开(公告)号：EP2406926A4

    公开(公告)日：2017-03-01

    申请号：EP09841309

    申请日：2009-03-09

    申请人： ZTE WISTRON TELECOM AB

    发明人： PEROULAS JAMES ,  LIAO QUN

    IPC分类号： H04L25/10

    CPC分类号： H04L27/2623

    摘要： An apparatus and method for compensating for transmit power losses that are caused by the addition of a clipping or crest factor reduction module in the TX path of a communications system. The method includes applying a gain to a signal input into the crest factor reduction module, so that a power of a signal output from the crest factor reduction module is equal to a power of a signal output from a baseband signal generation module in the TX chain. The apparatus and method have the benefit that the peaks of the signal to be transmitted will be consistent over a wide range of TX power values.

    METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER A WIRE PAIR HAVING ACTIVITY DETECTION CAPABILITY
    7.
    发明公开
    METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER A WIRE PAIR HAVING ACTIVITY DETECTION CAPABILITY 失效
    方法和设备用于传输信号的支持下的收购活动的资格线对

    公开(公告)号：EP0801859A4

    公开(公告)日：2001-04-04

    申请号：EP95944735

    申请日：1995-12-28

    申请人： MAXIM INTEGRATED PRODUCTS

    发明人： ALLEN CHARLES M

    IPC分类号： H04L12/40 ,  H04L25/02 ,  H04L25/06 ,  H03K3/013 ,  H03K5/22 ,  H04L12/407 ,  H04L25/10

    CPC分类号： H04L25/028 ,  H04L25/0272 ,  H04L25/0292

    摘要： A method and apparatus for transmitting and receiving information over a network (20) that allows the detection of data transmission activity over a wire pair (50, 52, 100, 102) on the network. Within a computer system or other network device (10, 12, 14, 60, 90) a driver-receiver circuit (62, 66, 104, 105) along with an activity detector circuit (72-82, 115-120) are coupled to the wire pair such that when the wire pair is inactive, an Inactive signal (82, 112) is asserted, and the activity detector circuit will notify the network device that the network is not currently transmitting data. The activity detector includes a first voltage comparator (72, 114) coupled to a first differential threshold voltage generator (76, 118) and a second voltage comparator (74, 116) coupled to a second differential threshold voltage generator (78, 120). The absolute value of voltages generated by both differential threshold voltage generators is less than the minimum voltage levels required for a valid signal to be placed on the wire pair. The outputs of the first and second voltage comparators are coupled to an AND gate (80, 119) such that when the voltage differential across the wire pair is not sufficiently high to be a valid logic 1 or a valid logic 0, an Inactive signal (82, 112) is asserted. The Inactive signal, which indicates that the network is not currently transmitting data, is detected by the network device in which the driver-receiver circuit is incorporated.

    METHOD AND SYSTEM FOR COMPENSATING FOR PHASE VARIATIONS INTERMITTENTLY INTRODUCED INTO COMMUNICATION SIGNALS BY ENABLING OR DISABLING AN AMPLIFIER
    9.
    发明公开
    METHOD AND SYSTEM FOR COMPENSATING FOR PHASE VARIATIONS INTERMITTENTLY INTRODUCED INTO COMMUNICATION SIGNALS BY ENABLING OR DISABLING AN AMPLIFIER 审中-公开
    系统及方法往往进口通过释放或锁定放大器通信信号相位波动的补偿

    公开(公告)号：EP1636955A2

    公开(公告)日：2006-03-22

    申请号：EP04785744.6

    申请日：2004-05-05

    申请人： INTERDIGITAL TECHNOLOGY CORPORATION

    发明人： DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    IPC分类号： H04L25/66 ,  H04L25/10

    CPC分类号： H03G3/3052

    摘要： A communication system including an amplifier (105), a receiver (110), an analog to digital converter (ADC 115) and an insertion phase variation compensation module (120). The amplifier receives a communication signal (150). If the amplifier is enabled, the amplifier amplifies the communication signal and outputs the amplified communication signal to the receiver. If the amplifier is disabled, the amplifier passes the communication signal to the receiver without amplifying it. The receiver outputs an analog complex signal to the ADC. The ADC outputs a digital complex signal to the insertion phase variation compensation module which counteracts the effects of a phase offset intermittently introduced into the communication signal when the amplifier is enabled or disabled.