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1. 发明申请

WO2014097267A1 SINGLE CHANNEL FULL DUPLEX WIRELESS COMMUNICATION WITH ENHANCED BASEBAND PROCESSING 审中-公开
标题翻译：单通道全双工无线通信，具有增强的基带处理
公开(公告)号：WO2014097267A1
公开(公告)日：2014-06-26
申请号：PCT/IB2013/061232
申请日：2013-12-20
申请人： REDLINE COMMUNICATIONS INC.
发明人： SARCA, Octavian
IPC分类号： H04B1/56
CPC分类号： H04B1/56 , H04B1/0483 , H04B1/109
摘要： A single-channel full-duplex wireless communication system includes a baseband processor, a transmitter, a receiver. Part of the transmission signal from the transmitter leaks. The transmitter and the receiver utilize one channel, at the same time, to transmit and receive wireless signals with no separation between frequencies used for the transmitting and the receiving. The output of the receiver includes self-interference caused by the leakage from the transmission signal. The processor estimates a transfer function whose input includes the transmission signal fed to the input of the transmission path, and whose output is fed to an input of a secondary transmission path to produce an intermediate signal at an output of the secondary transmission path. A cancellation signal is generated based upon the intermediate signal and is subsequently combined with the received signal in the receiver's combining element to reduce the self-interference in the output signal from the receiver.
摘要翻译：单通道全双工无线通信系统包括基带处理器，发射机，接收机。来自变送器的传输信号的一部分泄漏。发射机和接收机同时利用一个信道来发射和接收无线信号，而无需在发射和接收之间使用的频率间隔。接收机的输出包括由传输信号的泄漏引起的自身干扰。处理器估计其输入包括馈送到传输路径的输入的传输信号并且其输出被馈送到二次传输路径的输入以在二次传输路径的输出处产生中间信号的传递函数。基于中间信号生成消除信号，并且随后与接收机组合元件中的接收信号组合以减少来自接收器的输出信号中的自干扰。

2. 发明申请

WO2013088393A1 SINGLE CHANNEL FULL DUPLEX WIRELESS COMMUNICATION 审中-公开
标题翻译：单通道全双工无线通信
公开(公告)号：WO2013088393A1
公开(公告)日：2013-06-20
申请号：PCT/IB2012/057298
申请日：2012-12-13
申请人： REDLINE COMMUNICATIONS INC.
发明人： SARCA, Octavian
IPC分类号： H04W16/14 , H04B7/00 , H04L5/14
CPC分类号： H04B1/525 , H04B1/40 , H04L5/14 , H04L5/1461 , H04W24/02 , H04W84/042
摘要： A single channel full duplex wireless communication system includes a processor, a transmitter, a receiver, a secondary transmission path, a combining element, a primary transmission feedback path and a secondary transmission feedback path. The transmitter transmits a transmission signal via a transmission path. The receiver receives a received signal via a reception path. The transmitter and the receiver utilize one channel to transmit and receive signals. The transmission signal causes self-interference. The processor estimates a first transfer function and feeds the secondary transmission path with the transmission signal adjusted by the first transfer function to reduce the transmission signal leaked to the reception path. The combining element combines the transmission signal with the adjusted secondary transmission path signal to remove the self-interference. The primary transmission feedback path output is modified by a second transfer function. The secondary transmission feedback path output is modified by a third transfer function.
摘要翻译：单通道全双工无线通信系统包括处理器，发射机，接收机，辅助传输路径，组合元件，主要传输反馈路径和次要传输反馈路径。发射机通过传输路径发送传输信号。接收机通过接收路径接收接收到的信号。发射机和接收机利用一个信道来发射和接收信号。传输信号引起自干扰。处理器估计第一传递函数并且将辅传输路径馈送到由第一传递函数调整的传输信号，以减少泄漏到接收路径的传输信号。组合单元将传输信号与调整的二次传输路径信号相结合，以消除自干扰。主传输反馈路径输出由第二传递函数修改。次传输反馈路径输出由第三传递函数修改。

3. 发明申请

WO2003017466A2 AN ADAPTIVE PRE-DISTORTION METHOD AND APPARATUS FOR DIGITAL RF TRANSMITTERS 审中-公开
标题翻译：适用于数字射频发射机的自适应预失真方法和装置
公开(公告)号：WO2003017466A2
公开(公告)日：2003-02-27
申请号：PCT/CA2002/001253
申请日：2002-08-13
申请人： REDLINE COMMUNICATIONS INC. , SARCA, Octavia, V.
发明人： SARCA, Octavia, V.
IPC分类号： H03F
CPC分类号： H03F1/3247
摘要： A method of and apparatus for adaptive pre-distortion of a digital base band signal include applying a pre-distortion to a digital base band signal and adapting the pre-distortion in dependence upon a comparison between a pre-distorted base band signal and a digital base band derived from an amplified radio frequency signal. Pre-distortion is applied to both the signal path and a feedback path used to derive the digital base band signal from the amplified radio frequency signal. In a first embodiment non-linear pre-distortion is applied to both paths. In a second embodiment non-linear and linear pre-distortion is applied to both paths. In a third embodiment an addition linear pre-distortion is applied to the feedback path.
摘要翻译：一种用于数字基带信号的自适应预失真的方法和装置包括将预失真应用于数字基带信号，并根据预失真的基带信号和数字基带信号之间的比较来适应预失真基带来自放大的射频信号。将预失真应用于信号路径和用于从放大的射频信号导出数字基带信号的反馈路径。在第一实施例中，将非线性预失真应用于两个路径。在第二实施例中，将非线性和线性预失真应用于两个路径。在第三实施例中，将加法线性预失真应用于反馈路径。

4. 发明申请

WO2003023983A1 METHOD AND APPARATUS FOR DIRECT DIGITAL TO RF CONVERSION USING PULSE SHAPING 审中-公开
标题翻译：使用脉冲形状的直接数字到RF转换的方法和装置
公开(公告)号：WO2003023983A1
公开(公告)日：2003-03-20
申请号：PCT/CA2002/001387
申请日：2002-09-12
申请人： REDLINE COMMUNICATIONS INC. , SARCA, Octavian, V.
发明人： SARCA, Octavian, V.
IPC分类号： H04B1/04
CPC分类号： H03D7/00 , H04B1/04 , H04B1/28
摘要： The invention described herein provides a method and apparatus that allows direct digital to IF/RF conversion using pulse-shaping. The method facilitates obtaining a flat or near flat output spectrum after digital to analog conversion with a minimal loss in signal energy. As opposed to pulse-shortening, where the DAC output pulse and consequently the energy per sample are reduced to a fraction a
摘要翻译：本文描述的本发明提供了允许使用脉冲整形直接进行数字到IF / RF转换的方法和装置。该方法有助于在数字到模拟转换之后以最小的信号能量损失获得平坦或接近平坦的输出频谱。与脉冲缩短相反，其中DAC输出脉冲和因此每个采样的能量减少到最大值的分数a <1，脉冲整形不会缩短DAC脉冲。对于每个采样，脉冲整形首先存储DAC传递的能量，然后在短时间内将存储的能量释放到输出。这样一来，即使对于非常小的值也没有信号能量损失。通过脉冲整形，输出脉冲的持续时间aT以类似于脉冲缩短的方式有助于光谱平坦度，但具有输出脉冲的形状对平坦光谱有显着贡献的附加益处。在使用两种类型的DAC的上下文中描述脉冲整形方法的两个实施例：一个具有电流输出，另一个具有电压输出。然后，针对单端电流输出DAC和差分电流输出DAC给出了脉冲整形实现的两个示例。

5. 发明申请

WO2003023897A1 METHOD AND APPARATUS FOR BEAM STEERING IN A WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：无线通信系统中光束转向的方法与装置
公开(公告)号：WO2003023897A1
公开(公告)日：2003-03-20
申请号：PCT/CA2002/001388
申请日：2002-09-12
申请人： REDLINE COMMUNICATIONS INC. , MOLDOVEANU, Calin , SARCA, Octavian, V. , SELEA, Radu
发明人： MOLDOVEANU, Calin , SARCA, Octavian, V. , SELEA, Radu
IPC分类号： H01Q1/24
CPC分类号： H04W16/28 , H01Q1/246 , H01Q3/24 , H01Q3/40 , H01Q25/00
摘要： A method and apparatus is provided that allows M transceivers to transmit/receive using M2 N distinct beams using passive beam steering. This provides for the use of arbitrary narrow beams with a number of transceivers that is a fraction of the number of beams but ensures 360 ° coverage. In other words it permits significant improvements in the link budget with a minimal rise in the cost of the BS. The apparatus includes M distribution switches applied 2 N passive beam forming networks each coupled to M antennas. The method and apparatus are compatible with TDMA in the downlink and in the uplink.
摘要翻译：提供了一种方法和装置，其允许M个收发器使用无源波束转向使用M2 个不同的波束发射/接收。这提供了使用具有多个收发器的任意窄波束，其是波束数量的一部分，但是确保360°覆盖。换句话说，它允许链路预算的显着改进，而BS的成本最小。该装置包括施加2个N个无源波束形成网络的M个分配开关，每个耦合到M个天线。该方法和装置在下行链路和上行链路中与TDMA兼容。

6. 发明申请

WO2003017478A2 FEED FORWARD COMPENSATION CIRCUIT 审中-公开
标题翻译：进给前向补偿电路
公开(公告)号：WO2003017478A2
公开(公告)日：2003-02-27
申请号：PCT/CA2002/001254
申请日：2002-08-13
申请人： REDLINE COMMUNICATIONS INC. , MOLDOVEANU, Calin
发明人： MOLDOVEANU, Calin
IPC分类号： H03G3/00
CPC分类号： H03F1/3229
摘要： A feed forward compensation circuit for a radio frequency power amplifier includes a nulling loop and a compensation loop. The nulling loop includes active components that provide feedback to the amplitude and phase adjusters. This feedback compensates for component drift and ensures stable operation. In a preferred embodiment the active components include operational amplifiers that compare input and output signals to determine when adjustments are needed.
摘要翻译：用于射频功率放大器的前馈补偿电路包括零位回路和补偿回路。归零回路包括向幅度和相位调节器提供反馈的有源元件。该反馈补偿元件漂移，确保稳定运行。在优选实施例中，有源部件包括运算放大器，其比较输入和输出信号以确定何时需要调整。

7. 发明申请

WO2003024048A3 HIERARCHICAL MODULATION 审中-公开
公开(公告)号：WO2003024048A3
公开(公告)日：2003-03-20
申请号：PCT/CA2002/001389
申请日：2002-09-12
申请人： REDLINE COMMUNICATIONS INC. , SARCA, Octavian, V.
发明人： SARCA, Octavian, V.
IPC分类号： H04L27/34
摘要： A method of hierarchically modulating and demodulating data, whereby a number of distinct data streams are encoded in a single symbol stream and subsequently into a single RF signal. At reception, hierarchical demodulation extracts these distinct data streams from the same RF signal. Each data stream provides a different level of protection against noise and interference and the difference between data streams can be controlled using a single parameter.

8. 发明申请

WO2003017478A3 FEED FORWARD COMPENSATION CIRCUIT 审中-公开
公开(公告)号：WO2003017478A3
公开(公告)日：2003-02-27
申请号：PCT/CA2002/001254
申请日：2002-08-13
申请人： REDLINE COMMUNICATIONS INC. , MOLDOVEANU, Calin
发明人： MOLDOVEANU, Calin
IPC分类号： H03F1/32
摘要： A feed forward compensation circuit for a radio frequency power amplifier includes a nulling loop and a compensation loop. The nulling loop includes active components that provide feedback to the amplitude and phase adjusters. This feedback compensates for component drift and ensures stable operation. In a preferred embodiment the active components include operational amplifiers that compare input and output signals to determine when adjustments are needed.

9. 发明申请

WO2003017418A1 DISTRIBUTION SYSTEM FOR ANTENNA ARRAY 审中-公开
标题翻译：天线阵列分配系统
公开(公告)号：WO2003017418A1
公开(公告)日：2003-02-27
申请号：PCT/CA2002/001255
申请日：2002-08-13
申请人： REDLINE COMMUNICATIONS INC. , MOLDOVEANU, Calin
发明人： MOLDOVEANU, Calin
IPC分类号： H01Q1/24
CPC分类号： H01Q3/242 , H01Q1/246 , H01Q3/24 , H01Q3/26 , H01Q21/0006 , H01Q21/205 , H04B7/04
摘要： An antenna distribution system provides an effective way to deploy wireless access coverage in an evolving subscriber coverage area. The antenna distribution system includes multiple levels of inputs that are selectively connected to an antenna array to alter the radiation pattern of the antenna array as desired for a given subscriber distribution and topography scenario. An eight-antenna array has four levels of input. The first level has eight inputs each selectively coupled to the corresponding one of the eight antenna. The second level has four inputs, each selectively coupled to two adjacent antennas. The third level has two inputs, each selectively coupled to four adjacent antennas. The fourth level has one input selectively coupled to all eight antenna. Phase shifters coupled to each antenna apply appropriate phase compensation for the antennas to effect the desired radiation pattern when coupled using the second, third or fourth level inputs. In general for n levels of input N=2 n antennas are required, each antenna radiating a petal having an angle of 360 0 /2 n-k where k=O,1...n
摘要翻译：天线分配系统提供了在演进的用户覆盖区域中部署无线接入覆盖的有效方式。天线分配系统包括多个级别的输入，其被选择性地连接到天线阵列，以根据给定的用户分配和地形场景的期望来改变天线阵列的辐射图。八天线阵列有四个输入电平。第一级具有八个输入，每个输入选择性地耦合到八个天线中的相应一个天线。第二级具有四个输入，每个输入选择性地耦合到两个相邻的天线。第三级具有两个输入，每个输入选择性地耦合到四个相邻的天线。第四级具有选择性地耦合到所有八个天线的一个输入。耦合到每个天线的移相器对于天线施加适当的相位补偿，以在使用第二，第三或第四电平输入耦合时实现期望的辐射图。通常，对于n个输入电平N = 2 个天线，每个天线辐射具有360°/ 2 的角度的花瓣，其中k = 0,1 ... n

10. 发明申请

WO2003024042A1 METHOD AND APPARATUS FOR MULTIPLE RESOLUTION CARRIER OFFSET RECOVERY 审中-公开
标题翻译：用于多分辨率载波偏移恢复的方法和装置
公开(公告)号：WO2003024042A1
公开(公告)日：2003-03-20
申请号：PCT/CA2002/001390
申请日：2002-09-12
申请人： REDLINE COMMUNICATIONS INC. , SARCA, Octavian, V.
发明人： SARCA, Octavian, V.
IPC分类号： H04L27/00
CPC分类号： H04L27/0014 , H04L2027/0046 , H04L2027/0095
摘要： A carrier offset recovery method and apparatus are provided that use a dual sequence has a period N=2n that is less than a second sequence having a period M=2m. The apparatus includes an error corrector circuit that combines the range from one offset estimation with the precision of the other. To obtain a very large range for the carrier offset one can employ one or more additional stages. For example, one can use a sequence with a period of P=2p samples where P
摘要翻译：提供了使用双序列具有小于具有周期M = 2m的第二序列的周期N = 2n的载波偏移恢复方法和装置。该装置包括误差校正器电路，其组合来自一个偏移估计的范围与另一个的精度。为了获得载波偏移的非常大的范围，可以采用一个或多个附加级。例如，可以使用P = 2p个样本的序列，其中P

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