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    • 4. 发明授权
    • Method and device for space division multiplexing of radio signals transmitted in cellular radio communications
    • 用于在蜂窝无线电通信中传输的无线电信号的空分复用的方法和装置
    • US06240098B1
    • 2001-05-29
    • US09011477
    • 1998-02-20
    • Joël ThibaultPascal ChevalierFrançois PiponJean-Jacques MonotGilbert Multedo
    • Joël ThibaultPascal ChevalierFrançois PiponJean-Jacques MonotGilbert Multedo
    • H04Q700
    • H04W88/08H04B7/04H04B7/0617H04B7/086
    • A method and apparatus for spatial multiplexing and demultiplexing of radio signals. A multichannel transmitter and receiver is integrated in a base station and coupled to an antenna array. Using digital radio signals containing previously known or non-Gaussian sequences and arranged in frames, the spatial information about each mobile unit is estimated on the basis of the signal received by the receiver for the reception and transmission frequencies. This is done by known sequences or by blind source separation methods. The respective paths of each mobile unit with the power above a predetermined threshold is isolated by spatial filtering in the presence of multiple channel paths in order to provide spatial demultiplexing. Simultaneously, the intended signal is transmitted in the direction of the main path of each mobile unit while protecting each mobile unit from signals transmitted in the direction of other mobile units by spatial filtering with cancelling constraints in order to provide spatial multiplexing.
    • 一种用于无线电信号的空间复用和解复用的方法和装置。 多通道发射机和接收机集成在基站中并耦合到天线阵列。 使用包含先前已知的或非高斯序列并且被布置在帧中的数字无线电信号,基于由接收机接收的用于接收和发送频率的信号来估计关于每个移动单元的空间信息。 这是通过已知的序列或通过盲源分离方法完成的。 具有高于预定阈值的功率的每个移动单元的相应路径在存在多个信道路径的情况下通过空间滤波来隔离,以便提供空间解复用。 同时,在每个移动单元的主路径的方向上发送预期信号,同时通过具有消除约束的空间滤波来保护每个移动单元不受其它移动单元的方向的信号的影响,以提供空间复用。
    • 5. 发明授权
    • Process for adjusting the transmission and reception chains of the paths by a base station of a system for radio communication between mobiles
    • 用于由移动台之间的无线电通信的系统的基站调整路径的发送和接收链的过程
    • US06205341B1
    • 2001-03-20
    • US08973758
    • 1997-12-23
    • Jean-Jacques MonotRobert BerrangerGilbert Multedo
    • Jean-Jacques MonotRobert BerrangerGilbert Multedo
    • H04B138
    • H04B7/04H04B17/11H04B17/21
    • A process which adjusts the transmission and reception chains of the paths formed by a base station of a system for radio communication between mobiles which after calibration of the antenna base adjusts the reception chains relating to each path by distributing a first specified adjustment signal synchronously over each of the reception chains and calculating an equalization filter which inverts the transfer functions related to each reception chain. The process next adjusts the transmission chains related to each path by distributing a second specified adjustment signal synchronously over each of the transmission chains, by extracting from each of the paths a part of a transmission signal before the transmission signal is sent to the antenna base so as to re-inject that part of the transmission signal into the reception chains, and by calculating an equalization filter which inverts the transfer functions related to each transmission chain. Finally, the process receives via the equalization filters previously calculated for the reception chains reception signals originating from the antenna base, or transmits via the equalization filters previously calculated for the transmission chains the transmission signals originating from the multipath transmission/reception device.
    • 调整由用于移动台之间的无线电通信的系统的基站形成的路径的发送和接收链的过程,其在天线基准校准之后通过在每个路径上同步地分配第一指定的调整信号来调整与每个路径相关的接收链 并计算均衡滤波器,该均衡滤波器反转与每个接收链相关的传递函数。 该过程接下来通过在每个发送链上同步地分配第二指定调整信号,通过在发送信号被发送到天线基底之前从发送信号的一部分中提取每个路径来调整与每个路径相关的发送链,从而 将发送信号的该部分重新注入到接收链中,并且通过计算反转与每个传输链相关的传递函数的均衡滤波器。 最后,该处理经由先前针对从天线基站发送的接收链接收信号计算的均衡滤波器接收,或者经由先前为传输链路计算的均衡滤波器发送来自多径发送/接收装置的发送信号。