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    Method for recorvering a bit stream from a radio signal
    2.
    发明公开
    Method for recorvering a bit stream from a radio signal 有权
    Verfahren zurRückgewinnungeines Bitstroms aus einem Funksignal

    公开(公告)号：EP2061159A1

    公开(公告)日：2009-05-20

    申请号：EP07022385.4

    申请日：2007-11-19

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Fischer, Georg ,  Gunreben, Peter Christian ,  Obemosterer, Frank Gerhard Ernst

    IPC: H04B7/02

    CPC classification number: H04B7/022 ,  H04L69/04

    Abstract: The invention relates to a method for recovering a bit stream from a radio signal (2, 3, 4) received in a first receiving station (S1) and at least one further receiving station (S2, S3), the method comprising the steps of: in each of the receiving stations (S1 to S3), demodulating the received radio signal (2, 3, 4) to form a demodulated data stream (B, B', B"), transferring the at least one demodulated data stream (B', B") from the at least one further receiving station (S2, S3) to the first receiving station (S1), in the first receiving station (S1), generating a combined data stream from the demodulated data streams (B, B', B") of each of the receiving stations (S1 to S3), and performing a hard decision on the combined data stream for recovering the bit stream.

    Abstract translation: 本发明涉及一种从在第一接收站（S1）和至少一个另外的接收站（S2，S3）中接收的无线电信号（2,3,4）中恢复比特流的方法，所述方法包括以下步骤： ：在每个接收站（S1至S3）中，解调所接收的无线电信号（2,3,4）以形成解调数据流（B，B'，B“），传送至少一个解调数据流 B'，B“）从第一接收站（S1）中的至少一个另外的接收站（S2，S3）到第一接收站（S1），从解调数据流（B， B'，B“），并且对用于恢复比特流的组合数据流执行硬判决。

    Direct conversion receiver comprising DC offset reducing system and transmitter
    3.
    发明公开
    Direct conversion receiver comprising DC offset reducing system and transmitter 有权
    Dire ender ender ger ender ender ender ender ender ender ender ender ender ender ender ender ender

    公开(公告)号：EP1478097A1

    公开(公告)日：2004-11-17

    申请号：EP04252518.8

    申请日：2004-04-29

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Fischer, Georg ,  Ritter, Kai-Uwe

    IPC: H04B1/30

    CPC classification number: H04B1/30 ,  H03D3/008

    Abstract: In a telecommunications transmitter and receiver two IQ-mixers are operated in 180 degrees phase shift. In both the transmitter and receiver, an input signal is coupled to each IQ-mixer and the output signal of the mixers are combined so as to cancel unwanted error components in each individual output signal. In the transmitter, residual carrier signals are cancelled, and in the receiver, DC-offsets are cancelled. In both, the wanted signals are added, doubling the amplitude of the resultant output signal leading to four times more output power and improved dynamic range.

    Abstract translation: 在电信发射机和接收机中，两个IQ混合器在180度相移中工作。 在发射机和接收机中，输入信号耦合到每个IQ混频器，并且混合器的输出信号被组合以消除每个单独的输出信号中的不期望的误差分量。 在发射机中，残留载波信号被取消，在接收机中取消直流偏移。 在两者中，所需的信号被加入，使得所得输出信号的幅度加倍，导致输出功率的四倍和改善的动态范围。

    Fast power control in wireless communication network
    4.
    发明公开
    Fast power control in wireless communication network 有权
    Schnelle Sendeleistungsregelung in einem drahtlosen Kommunikationsnetz

    公开(公告)号：EP1296464A1

    公开(公告)日：2003-03-26

    申请号：EP01308075.9

    申请日：2001-09-24

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Fischer, Georg ,  Schodel, Markus

    IPC: H04B7/005

    CPC classification number: H04W52/225 ,  H04W52/10 ,  H04W52/24

    Abstract: The invention relates to the controlling of transmission power of a wireless communication network, and in particular to the controlling of transmission power in the downlink direction of a GSM-network. An object of the present invention is, to provide a new and improved approach, in particular for enhancing the spectral efficiency, by realizing a fast controlling of transmission power substantially independent of any upcoming addition to a standard relating to wireless communication networks to ensure a transmission power control that is immediately available and compatible to already existing mobile stations. The invention proposes for the controlling of the transmission power the steps of receiving at a base station an uplink signal transmitted by a user equipment, detecting at least one kind of information parameter from said uplink signal during definable time periods, comparing the information parameters detected during a respective time period with each other and periodically adjusting the downlink transmission power between said base station and said user equipment in dependence on the comparison for providing a fast power control loop between said base station and said user equipment to reduce varying fading effects.

    Abstract translation: 本发明涉及对无线通信网络的发送功率的控制，特别涉及对GSM网络的下行方向的发送功率的控制。 本发明的目的是提供一种新的和改进的方法，特别是通过实现基本上独立于与无线通信网络有关的标准的任何附加的快速控制传输功率来提高频谱效率，以确保传输 功率控制立即可用并与现有的移动台兼容。 本发明提出了对发射功率进行控制的步骤，即在基站接收由用户设备发送的上行链路信号，在可定义的时间周期期间从所述上行链路信号中检测至少一种信息参数，比较检测到的信息参数 相应的时间段，并且根据用于在所述基站和所述用户设备之间提供快速功率控制环路的比较，周期性地调整所述基站和所述用户设备之间的下行链路传输功率，以减少变化的衰落效应。

    Method and device for adapting transmission power levels in transmission systems
    5.
    发明公开
    Method and device for adapting transmission power levels in transmission systems 有权
    Verfahren und Vorrichtung zum Anpassen von Sendepegeln在Übertragungssystemen

    公开(公告)号：EP1202448A1

    公开(公告)日：2002-05-02

    申请号：EP00309322.6

    申请日：2000-10-23

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Fischer, Georg

    IPC: H03G3/00 ,  H03G3/30

    CPC classification number: H03G3/3047 ,  H03G3/001

    Abstract: The invention relates to a method and a device for ensuring, in an overall simplified and improved manner compared with the state of the art, in particular dynamic adaptation of transmission power levels in transmission systems with digitally processed transmission signals.
    For this purpose, the invention provides, in transmission systems, in which a digitally processed transmission signal (S M , S E ) is converted for transmission into an analog signal, for the transmission power range to be controlled through the provision of a D/A converter (2) with an output amplifier (2b) which has a controllably adjustable amplification (2c).

    Abstract translation: 本发明涉及一种与现有技术相比，以总体简化和改进的方式确保具有数字处理的传输信号的传输系统中的传输功率电平的动态适应的方法和设备。 为此，本发明在传输系统中提供了一种数字处理的传输信号（SM，SE）被转换为模拟信号以用于通过提供D / A转换器来控制的传输功率范围 （2）具有输出放大器（2b），其具有可控地调节的放大（2c）。

    Transmitter device having a modulation closed loop
    6.
    发明公开
    Transmitter device having a modulation closed loop 有权
    发送方einer geschlossenenRückkopplungzur调制

    公开(公告)号：EP1128626A1

    公开(公告)日：2001-08-29

    申请号：EP00301545.0

    申请日：2000-02-28

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Fischer, Georg ,  Riemann, Volker

    IPC: H04L27/36

    CPC classification number: H03C3/0991 ,  H03C3/08 ,  H03C3/0925 ,  H03C3/0941 ,  H03C3/0966 ,  H03C3/0983 ,  H04B2001/0491 ,  H04L27/2017

    Abstract: The invention relates, inter alia, to a transmitter device, in particular for a base transceiver station in a mobile radio system, which has a digital modulator (20) for making available a signal containing a phase information, and a modulation closed loop (30) having a digital phase comparator (50) operating at baseband whose first input is connected to the output of the digital modulator (20). In addition, a controllable oscillator (80) is provided for generating an RF transmission signal at a controllable transmission frequency, a device (35) which is assigned to the controllable oscillator (80) and has the purpose of converting the RF transmission signal into a baseband signal containing a phase information. The output of the converter device (35) is connected here to a second input of the digital phase comparator (50).
    A GSM transmitter which has such a modulation closed loop (30) exhibits, in terms of its out-band noise and interference characteristics, significantly improved properties in comparison with a GSM transmitter which does not include a modulation loop.

    Abstract translation: 本发明尤其涉及一种发射机设备，特别是涉及一种移动无线电系统中的基站收发信机，其具有用于提供包含相位信息的信号的数字调制器（20）和调制闭环（30 ）具有在基带处工作的数字相位比较器（50），其第一输入端连接到数字调制器（20）的输出端。 另外，提供了可控制的振荡器（80），用于以可控的传输频率产生RF传输信号，被分配给可控振荡器（80）的装置（35），并且其目的是将RF传输信号转换为 基带信号包含相位信息。 转换器装置（35）的输出端连接到数字相位比较器（50）的第二输入端。 与不包括调制环路的GSM发射机相比，具有这种调制闭环（30）的GSM发射机在其带外噪声和干扰特性方面表现出显着改善的特性。

    Controlling Q-factor of filters
    9.
    发明公开
    Controlling Q-factor of filters 有权
    Regelung derGüte（Q）von Filtern

    公开(公告)号：EP1675263A1

    公开(公告)日：2006-06-28

    申请号：EP04258102.5

    申请日：2004-12-23

    Applicant: LUCENT TECHNOLOGIES INC. ,  Lucent Technologies Network Systems GmbH

    Inventor： Eckl, Wolfgang ,  Fischer, Georg ,  Kaminski, Gerhard

    IPC: H03H11/12

    CPC classification number: H03H11/123

    Abstract: The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback (300) to provide a variable feedback in a filter (120a), varying the active feedback based on an input signal (310a) to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals. Using software (125), for example, a common signal path may be provided for the multiplicity of frequency band signals within a frequency agile radio of a base station by tuning the radio based on a variable feedback through realization of a negative parallel resistance (FDNR). Thus, tuneability of the Q-factor may provide frequency agile radios that include flexible or reconfigurable filters in a base station to serve different frequency bands without changing hardware. In this way, significant savings associated with frequency agility may be obtained.

    Abstract translation: 本发明提供一种用于控制滤波器的Q因子的方法和装置。 该方法包括稳定主动反馈（300）以在滤波器（120a）中提供可变反馈，基于到滤波器的输入信号（310a）改变有源反馈，并且在一个滤波器（120a）处产生用于滤波器的期望Q因子 第一频带，响应变量反馈。 该方法还包括基于输入信号的滤波器的信道带宽重新配置滤波器的中心频率和带宽，以响应于与第一频带不同的第二频带来调整滤波器的Q因子。 通过重新配置滤波器的中心频率和带宽，可以跨多个频带信号来控制滤波器的Q因子，例如灵活或可重构滤波器。 使用软件（125），例如，可以通过基于通过实现负并联电阻（FDNR）的可变反馈调谐无线电来为基站的频率捷变无线电中的多个频带信号提供公共信号路径 ）。 因此，Q因子的可调性可以提供在基站中包括灵活或可重新配置的滤波器的频率捷变无线电，以服务于不改变硬件的不同频带。 以这种方式，可以获得与频率捷变相关的显着节省。

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