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1. 发明申请

US20120275356A1 Multi-Mode Wireless Communication Link 有权
标题翻译：多模式无线通信链路
公开(公告)号：US20120275356A1
公开(公告)日：2012-11-01
申请号：US13406190
申请日：2012-02-27
申请人： Ahikam Aharony , Ragfi Ravid , Jonathan Friedmann
发明人： Ahikam Aharony , Ragfi Ravid , Jonathan Friedmann
IPC分类号： H04W4/00
CPC分类号： H04B7/0871 , H04B7/0617 , H04B7/0619 , H04B7/0669 , H04B7/0689 , H04B7/0693 , H04B7/0697 , H04B7/0877 , H04B7/10
摘要： A communication system includes first and second transmitters, which are coupled to transmit respective first and second Radio Frequency (RF) signals carrying first and second data over a wireless communication channel. The transmitters are coupled to select an operational mode from a group of operational modes and to operate in the selected operational mode. The group of the operational modes includes at least two of a protection mode, wherein the second transmitter serves as backup to the first transmitter, a spatial multiplexing mode, in which the first data is different from the second data and the first and second transmitters transmit simultaneously, and a beam-forming mode, in which the first data is identical to the second data, the second RE signal includes a phase-shifted replica of the first RE signal, and the first and second transmitters transmit simultaneously.
摘要翻译：通信系统包括第一和第二发射机，其被耦合以通过无线通信信道发送携带第一和第二数据的相应的第一和第二射频（RF）信号。发射机被耦合以从一组操作模式中选择操作模式并且以所选择的操作模式操作。该组操作模式包括保护模式中的至少两个，其中第二发射机用作第一发射机的备份，空间复用模式，其中第一数据不同于第二数据，第一和第二发射机发送同时和波束形成模式，其中第一数据与第二数据相同，第二RE信号包括第一RE信号的相移副本，并且第一和第二发射机同时发射。

2. 发明申请

US20080088518A1 Antenna alignment method 有权
标题翻译：天线对准方法
公开(公告)号：US20080088518A1
公开(公告)日：2008-04-17
申请号：US11581643
申请日：2006-10-16
申请人： Dan Charash , Ahikam Aharony
发明人： Dan Charash , Ahikam Aharony
IPC分类号： H01Q3/00 , H04B1/06
CPC分类号： H01Q1/1257
摘要： A method for antenna alignment includes defining a first link budget for wireless communication between first and second communication systems via respective first and second antennas in a normal operational mode in which a main lobe of the first antenna points toward the second antenna. The first antenna is aligned to point to the second antenna responsively to an alignment indication provided by communicating between the first and second communication systems in an alignment operational mode having a second link budget greater than the first link budget.
摘要翻译：一种用于天线对准的方法包括：在第一天线的主瓣指向第二天线的正常操作模式中，经由相应的第一和第二天线，定义用于第一和第二通信系统之间的无线通信的第一链路预算。第一天线对准以指向第二天线，该对准指示是通过在第二链路预算大于第一链路预算的对准操作模式下在第一通信系统和第二通信系统之间进行通信而提供的。

3. 发明申请

US20170201368A1 Receiver Path Distortion Mitigation Using Adaptive Filter Feedback 审中-公开
公开(公告)号：US20170201368A1
公开(公告)日：2017-07-13
申请号：US14991930
申请日：2016-01-09
申请人： Weikun Hou , Ahikam Aharony
发明人： Weikun Hou , Ahikam Aharony
IPC分类号： H04L5/14 , H04B1/48
CPC分类号： H04L5/1461 , H04B1/48 , H04B2001/485 , H04L5/0048
摘要： A duplex communication system includes a duplexer for transmitting and receiving signals, a transmitter part connected to the duplexer, and a receiver part connected to the duplexer, the receiver part comprising an amplifier for amplifying a received signal to provide an amplified received signal and a demodulator for downconverting the amplified received signal, and a second-order intermodulation distortion (IMD2) compensation module for compensating for second-order intermodulation distortion. The system also includes an adaptive filtering module that obtains a transmitter reference signal, generates filter coefficients for the IMD2 compensation module and also adjusts a direct current (DC) bias of the demodulator based on the reference signal.

4. 发明授权

US09231832B2 Automatically-reconfigurable tropospheric scatter communication link 有权
标题翻译：自动重构对流层散射通信链路
公开(公告)号：US09231832B2
公开(公告)日：2016-01-05
申请号：US14142853
申请日：2013-12-29
申请人： Ahikam Aharony
发明人： Ahikam Aharony
IPC分类号： H04W4/00 , H04L12/24 , H04B7/12
CPC分类号： H04L41/12 , H04B7/12 , H04B7/155 , H04L41/0813 , H04L41/0816 , H04L41/082
摘要： A communication system includes multiple communication nodes and a processor. The communication nodes are configured to communicate over a tropospheric scattering channel. The processor is configured to communicate with the communication nodes over a secondary communication network, different from the tropospheric scattering channel, so as to control communication of the communication nodes over the tropospheric scattering channel.
摘要翻译：通信系统包括多个通信节点和处理器。通信节点被配置为通过对流层散射信道进行通信。处理器被配置为通过次级通信网络与对流层散射信道不同的通信节点进行通信，以便控制对流层散射信道上的通信节点的通信。

5. 发明申请

US20150189651A1 AUTOMATICALLY-RECONFIGURABLE TROPOSPHERIC SCATTER COMMUNICATION LINK 审中-公开
标题翻译：自动可重新配置的TROPOSPHERIC散热器通信链路
公开(公告)号：US20150189651A1
公开(公告)日：2015-07-02
申请号：US14142853
申请日：2013-12-29
申请人： Ahikam Aharony
发明人： Ahikam Aharony
IPC分类号： H04W72/04 , H04L12/24
CPC分类号： H04L41/12 , H04B7/12 , H04B7/155 , H04L41/0813 , H04L41/0816 , H04L41/082
摘要： A communication system includes multiple communication nodes and a processor. The communication nodes are configured to communicate over a tropospheric scattering channel. The processor is configured to communicate with the communication nodes over a secondary communication network, different from the tropospheric scattering channel, so as to control communication of the communication nodes over the tropospheric scattering channel.
摘要翻译：通信系统包括多个通信节点和一个处理器。通信节点被配置为通过对流层散射信道进行通信。处理器被配置为通过次级通信网络与对流层散射信道不同的通信节点进行通信，以便控制对流层散射信道上的通信节点的通信。

6. 发明授权

US08204143B2 Beamforming in MIMO communication systems 有权
标题翻译： MIMO通信系统中的波束成形
公开(公告)号：US08204143B2
公开(公告)日：2012-06-19
申请号：US12355823
申请日：2009-01-19
申请人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
发明人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
IPC分类号： H04B7/02
CPC分类号： H04B7/063 , H04B7/0617 , H04B7/0857
摘要： A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
摘要翻译：通信终端包括第一和第二发射机，其被耦合以产生通过波束形成相位偏移相对于彼此相移的相应的第一和第二射频（RF）信号，并且将RF信号发送到远程通信终奌站。终端包括包括第一和第二接收机的接收子系统和相位校正单元。第一和第二接收机分别被耦合以从远程通信终端接收第三和第四RF信号。相位校正单元被耦合以响应于第三和第四RF信号产生用于校正波束形成相位偏移中的误差分量的相位校正。

7. 发明申请

US20080008257A1 Communication link control using iterative code metrics 有权
标题翻译：使用迭代代码度量的通信链路控制
公开(公告)号：US20080008257A1
公开(公告)日：2008-01-10
申请号：US11483078
申请日：2006-07-06
申请人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
发明人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
IPC分类号： H04L23/02
CPC分类号： H04L1/005 , H03M13/1102 , H03M13/2975 , H03M13/3753 , H03M13/6337 , H04L1/0003 , H04L1/0009 , H04L1/0052 , H04L1/0057 , H04L1/203
摘要： A method for communication includes receiving over a communication link data that has been encoded using a forward error correcting (FEC) code. The encoded data is decoded using an iterative decoding process, which produces metrics. A condition of the communication link is assessed responsively to the metrics.
摘要翻译：一种用于通信的方法包括：通过通信链路接收已经使用前向纠错（FEC）码进行编码的数据。使用迭代解码过程对编码数据进行解码，该过程产生度量。响应于度量来评估通信链路的状况。

8. 发明授权

US10396826B2 Software defined network with selectable low latency or high throughput mode 有权
公开(公告)号：US10396826B2
公开(公告)日：2019-08-27
申请号：US15478798
申请日：2017-04-04
申请人： Ahikam Aharony
发明人： Ahikam Aharony
IPC分类号： H03M13/37 , H03M13/00 , H03M13/09 , H03M13/11 , H04L1/00 , H03M13/29
摘要： Encoding and decoding systems are provided for reduced latency at the decoder. In the encode error detection codewords are produced from source bits. The error detection codewords are then encoded with a systematic error correction encoder to produce a set of parity bits. All of the systematic code source bits and at least some of the parity bits are mapped to modulation symbols for transmission. In the decoder, two signal processings are performed in parallel, one based on soft bit decisions and the other based on hard bit decisions. The soft bit decisions are processed using a systematic error correction decoder. The hard bit decisions are processed by re-encoding error detection codewords to produce parity bits. If the produced parity bits match received parity bits, then the hard bit decisions are reliable and are output without waiting for the result of the systematic error correction decoder.

9. 发明授权

US10135661B2 Phase noise estimation and cancellation 有权
公开(公告)号：US10135661B2
公开(公告)日：2018-11-20
申请号：US15423108
申请日：2017-02-02
申请人： Hoda Shahmohammadian , Ahikam Aharony
发明人： Hoda Shahmohammadian , Ahikam Aharony
IPC分类号： H04L27/26 , H04L5/00 , H04L27/34 , H04L25/02 , H04L1/00
摘要： Phase noise estimation and cancellation as disclosed herein may allow cost-efficient increase of capacity in communications by enabling very high QAM levels. The proposed solution is potentially applicable to any single carrier applications where phase noise is a limiting factor and a required order of modulation is very high. For example, disclosed embodiments may enable high QAM levels for microwave backhauls despite severe phase noise sensitivity. One embodiment involves a pilot-aided and BCJR-based sequential search algorithm that accurately estimates and subtracts fast-varying phase noise symbol-by-symbol. Residual BER performance is evaluated under the most challenging phase noise scenarios. FPGA emulation results show detection and removal of a significant amount of phase noise and zero BER performance even for complex 1K-QAM and above.

10. 发明授权

US09948407B2 Method and apparatus for beamforming calibration in point to multipoint communication systems 有权
公开(公告)号：US09948407B2
公开(公告)日：2018-04-17
申请号：US15167160
申请日：2016-05-27
申请人： Taiwen Tang , Ahikam Aharony
发明人： Taiwen Tang , Ahikam Aharony
IPC分类号： H04B17/00 , H04B17/12 , H04B7/06 , H04B17/14 , H01Q3/26
CPC分类号： H04B17/12 , H01Q3/267 , H04B7/0617 , H04B17/14
摘要： Methods and apparatus for calibrating an antenna array are provided. A limited number of antenna elements of the array are operated to broadcast a signal. The signal carries information relevant to operation of a communication network, for receipt by other devices. By using one or a limited number of antenna elements, a radiation pattern covering a wide area is achieved. Concurrently, transmission of the broadcast signal is monitored using another one or more antenna elements of the array, operating in a receive mode. The monitored signal is used in an antenna array calibration operation. The procedure is repeated for various different transmitting and receiving antenna elements, resulting in a sequence of broadcasts using different parts of the array. The calibration results can be used to correct for operating errors such as phase shifter errors. The corrected phase shifters can then be used for beamforming during another phase of communication.

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