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    • 1. 发明申请
    • Millimeter wave communications link
    • US20050271125A1
    • 2005-12-08
    • US10859006
    • 2004-06-02
    • Richard ChedesterJohn LovbergPaul JohnsonEric Korevaar
    • Richard ChedesterJohn LovbergPaul JohnsonEric Korevaar
    • H04B1/38H04B1/40
    • H04B1/40
    • A high data rate free space communication link operating at millimeter wave frequency ranges. Links include two transceivers, the first transceiver transmitting at a first frequency range and receiving at a second frequency range and a second transceiver transmitting at the second frequency range and receiving at the first frequency range. Each of the two transceivers has a primary tunable oscillator providing a basic frequency signal that is precisely the same for both transceivers. Preferably the primary tunable oscillator in one of the transceivers, the slave oscillator, is slaved to the primary tunable oscillator, the master oscillator, in the other transceiver and the two transceivers are locked in frequency and phase. Also preferably the master oscillator is frequency controlled to maintain a constant number of wavelengths in the millimeter wave radio beams between the two transceivers, at least for periods of time permitting substantial data transmission without change in the number of wavelengths. In both transceivers a center frequency is generated by frequency multiplication and mixing of harmonics of the basic frequency signal generated by the transceiver's primary tunable oscillator. Preferred embodiments are designed to operate at frequencies above 60 GHz. In a particular preferred embodiment the center frequency for the first transceiver is about 73.5 GHz and the center frequency for the second transceiver is about 83.3 GHz. Embodiments of the present invention include automatic transmit power control, (preferably about 20 db of it, permitting operation at about 1 percent to 100 percent of maximum transmit power) for assuring adequate signal transmission in a wide variety of atmospheric conditions but not excessive power that might interfere with other links at the same frequencies. The narrow beam widths of these transceivers at about 0.5 degrees using a two-foot diameter antenna and the above transmit power control permit a large number of these transceivers to operate in the same region using the same frequencies.
    • 2. 发明申请
    • Mobile millimeter wave communication link
    • 移动毫米波通信链路
    • US20060178142A1
    • 2006-08-10
    • US11249787
    • 2005-10-12
    • John LovbergDavid LillyEric KorevaarRichard Chedester
    • John LovbergDavid LillyEric KorevaarRichard Chedester
    • H04Q7/20
    • H04B1/38H04B7/18504
    • A point-to-point, wireless, millimeter wave communications link between two stations at least one of which is a mobile station. A millimeter wave transmitter system operating at frequencies higher than 57 GHz with a tracking antenna producing a beam having a half-power beam width of about 2 degrees or less and a millimeter wave receiver also with a tracking antenna having a half-power beam width of about 2 degrees or less. In preferred embodiments each mobile station has a global position system (GPS) and a radio transmitter and both tracking antennas are pointed utilizing GPS information from the mobile station or stations. The GPS information preferably is transmitted via a low frequency, low data rate radio. Each millimeter wave unit is capable of transmitting and/or receiving, through the atmosphere, digital information to/from the other station at rates in excess of 155 million bits per second during normal weather conditions. In preferred embodiments actually built and tested by Applicants digital information has been transmitted at rates of 1.25 gigabits per second. Preferred communication links described here are millimeter wave links operating at frequencies of 71-73 GHz and 74-76 GHz mounted on simple two-axis gimbals. Pointing information of the required accuracy is provided by GPS receivers and standard radio links which send the GPS calculated positions to the millimeter wave systems at the opposite end of the link. In these embodiments there is no need for any complicated closed loop pointing information derived from received signal intensity or phase. On moving platforms locally generated inertial attitude information is combined with the GPS positions to control pointing of the gimbaled transceivers.
    • 两个站点之间的点到点,无线,毫米波通信链路,其中至少一个是移动站。 一个在高于57GHz频率工作的毫米波发射机系统,具有产生具有大约2度或更小的半功率波束宽度的波束的跟踪天线以及具有半波束宽度的跟踪天线的毫米波接收机 约2度以下。 在优选实施例中,每个移动站具有全球定位系统(GPS)和无线电发射机,并且利用来自移动站或站的GPS信息来指示两个跟踪天线。 GPS信息优选地经由低频,低数据速率无线电发送。 每个毫米波单元能够在正常天气条件下,以大于每秒155百万比特的速率向大气传送和/或从另一台站发送数字信息。 在由申请人实际构建和测试的优选实施例中,已经以1.25吉比特/秒的速率传送数字信息。 这里描述的优选通信链路是安装在简单的双轴万向台上的以71-73GHz和74-76GHz频率工作的毫米波链路。 所需精度的指向信息由GPS接收机和标准无线电链路提供,GPS接收机和链路的相对端发送GPS计算的位置到毫米波系统。 在这些实施例中,不需要从接收到的信号强度或相位导出的任何复杂的闭环指向信息。 在移动平台上,本地产生的惯性姿态信息与GPS位置相结合,以控制万向收发器的指向。
    • 3. 发明授权
    • Mobile millimeter wave communication link
    • 移动毫米波通信链路
    • US07680516B2
    • 2010-03-16
    • US11249787
    • 2005-10-12
    • John LovbergDavid LillyEric KorevaarRichard Chedester
    • John LovbergDavid LillyEric KorevaarRichard Chedester
    • H04M1/00
    • H04B1/38H04B7/18504
    • A point-to-point, wireless, millimeter wave communications link between two stations at least one of which is a mobile station. A millimeter wave transmitter system operating at frequencies higher than 57 GHz with a tracking antenna producing a beam having a half-power beam width of about 2 degrees or less and a millimeter wave receiver also with a tracking antenna having a half-power beam width of about 2 degrees or less. In preferred embodiments each mobile station has a global position system (GPS) and a radio transmitter and both tracking antennas are pointed utilizing GPS information from the mobile station or stations. The GPS information preferably is transmitted via a low frequency, low data rate radio. Each millimeter wave unit is capable of transmitting and/or receiving, through the atmosphere, digital information to/from the other station at rates in excess of 155 million bits per second during normal weather conditions. In preferred embodiments actually built and tested by Applicants digital information has been transmitted at rates of 1.25 gigabits per second. Preferred communication links described here are millimeter wave links operating at frequencies of 71-73 GHz and 74-76 GHz mounted on simple two-axis gimbals. Pointing information of the required accuracy is provided by GPS receivers and standard radio links which send the GPS calculated positions to the millimeter wave systems at the opposite end of the link. In these embodiments there is no need for any complicated closed loop pointing information derived from received signal intensity or phase. On moving platforms locally generated inertial attitude information is combined with the GPS positions to control pointing of the gimbaled transceivers.
    • 两个站点之间的点到点,无线,毫米波通信链路,其中至少一个是移动站。 一个在高于57GHz频率工作的毫米波发射机系统,具有产生具有大约2度或更小的半功率波束宽度的波束的跟踪天线以及具有半波束宽度的跟踪天线的毫米波接收机 约2度以下。 在优选实施例中,每个移动站具有全球定位系统(GPS)和无线电发射机,并且利用来自移动站或站的GPS信息来指示两个跟踪天线。 GPS信息优选地经由低频,低数据速率无线电发送。 每个毫米波单元能够在正常天气条件下,以大于每秒155百万比特的速率向大气传送和/或从另一台站发送数字信息。 在由申请人实际构建和测试的优选实施例中,已经以1.25吉比特/秒的速率传送数字信息。 这里描述的优选通信链路是安装在简单的双轴万向台上的以71-73GHz和74-76GHz频率工作的毫米波链路。 所需精度的指向信息由GPS接收机和标准无线电链路提供,GPS接收机和链路的相对端发送GPS计算的位置到毫米波系统。 在这些实施例中,不需要从接收到的信号强度或相位导出的任何复杂的闭环指向信息。 在移动平台上,本地产生的惯性姿态信息与GPS位置相结合,以控制万向收发器的指向。
    • 4. 发明申请
    • Wireless millimeter wave communication system with mobile base station
    • 无线毫米波通信系统与移动基站
    • US20060264210A1
    • 2006-11-23
    • US11452631
    • 2006-06-13
    • John LovbergPaul JohnsonEric Korevaar
    • John LovbergPaul JohnsonEric Korevaar
    • H04Q7/20
    • H04W92/20H04W84/005
    • A communication system providing wireless communication among wireless users through a number of cellular base stations. At least one of the base stations is a mobile base station in which low and high speed wireless transceivers are mounted on a temporarily stationary mobile vehicle such as a truck trailer or a truck. The system includes at least one connecting station with a millimeter wave wireless transceiver in communication with a fiber optic or high-speed cable communication network. The transceiver is adapted to communicate at millimeter wave frequencies higher than 60 GHz with another millimeter wave transceiver at one of the cellular base stations. Each of the base stations serves a separate communication cell. Each base station is equipped with a low frequency wireless transceiver for communicating with the wireless users within the cell at a radio frequency lower than 6 GHz and a millimeter wave wireless transceiver operating at a millimeter wave frequency higher than 60 GHz for communicating with another millimeter wave transceiver at another base station or a millimeter wave transceiver at said at the connecting station. The base stations are also equipped with data transfer means for transferring data communicated through the low frequency wireless transceiver to the millimeter wave wireless transceiver and for transferring data communicated through the millimeter wave wireless transceiver to the low frequency wireless transceiver. In preferred embodiments the system is a part of a telephone system, an Internet system or a computer network.
    • 一种通过多个蜂窝基站在无线用户之间提供无线通信的通信系统。 至少一个基站是移动基站,其中低速和高速无线收发器安装在诸如卡车拖车或卡车的临时固定移动车辆上。 该系统包括至少一个具有与光纤或高速电缆通信网络通信的毫米波无线收发器的连接站。 收发器适于在高于60GHz的毫米波频率处与另一毫米波收发器在蜂窝基站之一进行通信。 每个基站服务于单独的通信小区。 每个基站配备有低频无线收发器,用于与小于6GHz射频的小区内的无线用户进行通信,毫米波无线收发器以高于60GHz的毫米波频率运行,用于与另一毫米波通信 收发器在另一个基站或毫米波收发器在所述连接站。 基站还配备有用于将通过低频无线收发器传送的数据传送到毫米波无线收发器并将通过毫米波无线收发器传送的数据传送到低频无线收发器的数据传送装置。 在优选实施例中,系统是电话系统,因特网系统或计算机网络的一部分。
    • 5. 发明授权
    • Millimeter wave communications system with a high performance modulator circuit
    • 毫米波通信系统具有高性能调制电路
    • US07065326B2
    • 2006-06-20
    • US10319058
    • 2002-12-12
    • John LovbergRichard ChedesterPaul JohnsonLouis Slaughter
    • John LovbergRichard ChedesterPaul JohnsonLouis Slaughter
    • H04B1/40H03C3/00
    • H04B10/1123H01Q1/125H01Q19/10H04B1/3805H04B1/52H04B7/0408H04B10/1149H04B10/40
    • A high data rate communication system operating at frequencies greater than 70 MHz and at data rates of about 1.25 Gbps or greater. Preferred embodiments include modulators with a resonant LC circuit including a diode which is back-biased for “off” (i.e., no transmit) and forward biased for “on” (or transmit). The modulator is a part of high performance transceivers for wireless, millimeter wave communications links. A preferred embodiment provides a communication link of more than eight miles which operates within the 71 to 76 GHz portion of the millimeter spectrum and provides data transmission rates of 1.25 Gbps with bit error rates of less than 10−10 . A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same spectrum. In a preferred embodiment the first and second spectral ranges are 71.8+/−0.63 GHz and 73.8+/−0.63 GHz and the half power beam width is about 0.2 degrees or less. Preferably, a backup transceiver set is provided which would take over the link in the event of very bad weather conditions. In other embodiments especially useful for mobile applications at least one of the transceivers include a GPS locator.
    • 高数据率通信系统,工作频率大于70 MHz,数据速率约为1.25 Gbps或更高。 优选实施例包括具有谐振LC电路的调制器,该谐振LC电路包括被反向偏置为“关”(即,不发送)并且被正向偏置用于“导通”(或发送)的二极管。 调制器是用于无线毫米波通信链路的高性能收发器的一部分。 优选实施例提供了在毫米频谱的71至76GHz部分内工作的八英里以上的通信链路,并提供1.25Gbps的数据传输速率,其误码率小于10〜 。 第一收发机以第一带宽传输并在上述频谱范围内以第二带宽接收。 第二收发器以第二带宽发送并以第一带宽进行接收。 收发器配备有提供足够小的光束发散的天线,以确保数据信道的有效的空间和方向分区,使得几乎无限数量的收发器将能够同时使用相同的频谱。 在优选实施例中,第一和第二光谱范围为71.8 +/- 0.63GHz和73.8 +/- 0.63GHz,半功率波束宽度为约0.2度或更小。 优选地,提供备用收发器组,其在天气条件恶劣的情况下接管链路。 在其他实施例中对于移动应用尤其有用,至少一个收发器包括GPS定位器。
    • 9. 发明授权
    • Cellular communication system with high speed content distribution
    • 具有高速内容分发的蜂窝通信系统
    • US08385977B2
    • 2013-02-26
    • US12080709
    • 2008-04-03
    • Robert A. FeinPrasanna AdhikariEric KorevaarJohn Lovberg
    • Robert A. FeinPrasanna AdhikariEric KorevaarJohn Lovberg
    • H04M1/00
    • H04B1/38H04B7/18504
    • A communication system and method that combines with direct high data rate links at least one content distribution networks with a number of base stations of at least one cellular communication networks. In preferred embodiments the high data rate direct communication links between the content distribution networks and the base stations include millimeter wave radio links and the cellular communication networks are provided with third or fourth generation communication equipment providing data rates in excess of 40 Mbps. In a preferred embodiment millimeter wave links operating at data rates in the range of about 1.25 Gbps or greater in frequency ranges of within the range of 71 GHz to 86 GHz provide communication channels between base stations and points of presence of the content distribution network.
    • 一种通信系统和方法,其与至少一个内容分发网络与至少一个蜂窝通信网络的多个基站的直接高数据速率链路相结合。 在优选实施例中,内容分配网络和基站之间的高数据速率直接通信链路包括毫米波无线电链路,蜂窝通信网络被提供有提供超过40Mbps的数据速率的第三或第四代通信设备。 在优选实施例中,在71GHz至86GHz范围内的频率范围内以大约1.25Gbps或更大的数据速率工作的毫米波链路提供基站之间的通信信道和内容分发网络的存在点。
    • 10. 发明申请
    • 10GbE E-band radio with 8PSK modulation
    • 具有8PSK调制功能的10GbE E波段无线电
    • US20160204823A1
    • 2016-07-14
    • US14998988
    • 2016-03-14
    • John LovbergRichard ChedesterVladimir Kolinko
    • John LovbergRichard ChedesterVladimir Kolinko
    • H04B1/40H04W72/04
    • H04B1/40H04L27/2039H04L27/2332H04W72/0453
    • A millimeter wave radio link in which the transceivers have most of its components fabricated on a single chip or chipset of a small number of semiconductor chips. The chip or chipsets when mass produced is expected to make the price of millimeter wave radios comparable to many of the lower-priced microwave radios available today from low-cost foreign suppliers. Preferred embodiments of the present invention operate in the range of about 3.5 Gbps to more than 10 Gbps. The transceivers of a preferred embodiment are designed to receive binary input data at an input data rate in 10.3125 Gbps and to transmit at a transmit data rate in of 10.3125 Gbps utilizing encoded three-bit data symbols on a millimeter carrier wave at E-Band frequencies.
    • 一种毫米波无线电链路,其中收发器的大部分组件制造在少量半导体芯片的单个芯片或芯片组上。 批量生产时的芯片或芯片组有望使毫米波无线电的价格与当今低成本的国外供应商提供的许多价格较低的微波无线电相当。 本发明的优选实施例在大约3.5Gbps到大于10Gbps的范围内操作。 优选实施例的收发机被设计为以10.3125Gbps的输入数据速率接收二进制输入数据,并以10.3125Gbps的发送数据速率利用在E波段频率上的毫米波载波上的编码的三位数据符号进行发送 。