会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明申请
    • CROSSTALK CANCELLATION FOR MIMO TRANCEIVER
    • 用于MIMO跟踪器的CROSSTALK CANCELLATION
    • WO2010108772A1
    • 2010-09-30
    • PCT/EP2010/052830
    • 2010-03-05
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DENT, Paul
    • DENT, Paul
    • H04B7/04H04B7/00H01Q21/28H01Q1/24
    • H01Q21/28H01Q1/246H04B7/10H04B17/14
    • A multiple antenna system is described herein that mitigates the negative effects of mutually coupled antennas on the connected transmitters and/or receivers The antenna system comprises a directional coupler and two or more antennas The directional coupler comprises multiple communication ports that each connect to corresponding antenna ports The connection ports each connect to a different transmitter, receiver, or transceiver A transmission line connects each antenna port to an antenna The lengths of the transmission lines and the coupling factor of the directional coupler are selected to decouple the communication ports of the directional coupler More particularly, the coupling factor and the transmission line lengths are selected so that antenna crosstalk signals caused by mutual coupling between the antennas and the coupled signals produced by the directional coupler have the same magnitude but opposite phase at the communication ports of the directional coupler
    • 本文描述了减轻相连的发射机和/或接收机上相互耦合的天线的负面影响的多天线系统。天线系统包括定向耦合器和两个或多个天线。定向耦合器包括多个通信端口,每个通信端口连接到对应的天线端口 连接端口各自连接到不同的发射器,接收器或收发器A传输线将每个天线端口连接到天线。选择传输线的长度和定向耦合器的耦合因子以解耦定向耦合器的通信端口 特别地,选择耦合因子和传输线路长度,使得由天线之间的相互耦合和由定向耦合器产生的耦合信号引起的天线串扰信号在定向耦合器的通信端口具有相同的幅度但相反的相位
    • 15. 发明申请
    • SIGNAL WAVEFORM CONSTRUCTION FOR POSITION DETERMINATION BY SCRAMBLED CONICAL
    • 加扰锥形信号波形构造的位置确定
    • WO2009010548A2
    • 2009-01-22
    • PCT/EP2008/059351
    • 2008-07-17
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DENT, Paul
    • DENT, Paul
    • G01S1/42G01S3/56
    • G01S1/42G01S3/56
    • A method and apparatus for determining a mobile station's location using an antenna beam that traverses a scan pattern is described herein. In one embodiment, a device transmits/receives a signal as a position of a transmission/reception antenna beam traverses the scan pattern in a non-sequential order. A strength of the received signal is measured at a plurality of the beam positions. After reordering the signal strength measurements, the mobile station location relative to a nominal center of the beam is determined based on the reordered signal strength measurements. Another embodiment uses signals having different frequency components that are transmitted or received in beams executed in different scan patterns. In this embodiment, signal strength measurements associated with different frequency components are jointly processed to determine a combined correlation. The relative mobile station location is determined based on the combined correlation.
    • 这里描述了一种用于使用穿过扫描图案的天线射束来确定移动台的位置的方法和装置。 在一个实施例中,随着发射/接收天线射束的位置以非顺序的次序穿过扫描图案,装置发射/接收信号。 在多个波束位置测量接收信号的强度。 在重新排序信号强度测量值之后,基于重新排序的信号强度测量结果来确定移动台相对于光束的标称中心的位置。 另一实施例使用具有不同频率分量的信号,这些信号在以不同扫描模式执行的波束中发送或接收。 在该实施例中,联合处理与不同频率分量相关联的信号强度测量以确定组合相关。 相对移动台的位置是根据组合相关性确定的。
    • 16. 发明申请
    • OFDM SPECTRAL CONTROL
    • OFDM频谱控制
    • WO2010100076A1
    • 2010-09-10
    • PCT/EP2010/052423
    • 2010-02-25
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)DENT, PaulKHAYRALLAH, Ali S.
    • DENT, PaulKHAYRALLAH, Ali S.
    • H04L27/26H04L5/00H04L25/03
    • H04L27/2626H04L25/0202H04L25/0242H04L27/2634H04L27/2647
    • A method and apparatus for configuring a variable filter in an OFDM transmitter based on the number of subcarrier frequencies selected for the input data block is described herein. An exemplary OFDM transmitter comprises a control unit, OFDM modulator, and variable filter. The control unit selects the number of subcarriers for the input data block, and configures one or more filter properties for the variable filter based on the selected number of subcarriers. The modulator, which has a size greater than the selected number of subcarriers, pads an input data block generated for the selected number of subcarriers to generate an expanded data block having a size equal to the size of the modulator, and modulates the expanded data block to generate an OFDM signal. The filter, as configured by the control unit, filters the OFDM signal.
    • 这里描述了一种基于为输入数据块选择的子载波频率的数量来配置OFDM发射机中的可变滤波器的方法和装置。 示例性OFDM发射机包括控制单元,OFDM调制器和可变滤波器。 控制单元选择输入数据块的子载波数,并且基于所选择的子载波数量来配置可变滤波器的一个或多个滤波器特性。 具有大于所选择的子载波数量的调制器,对于所选择的子载波数量产生的输入数据块,以产生具有等于调制器大小的扩展数据块,并调制扩展数据块 以产生OFDM信号。 由控制单元配置的滤波器对OFDM信号进行滤波。