公开(公告)号：US20150140941A1

公开(公告)日：2015-05-21

申请号：US14606940

申请日：2015-01-27

Applicant: Aviat U.S., Inc.

Inventor： Ying Shen ,  David Schafer

IPC: H04L1/22 ,  H04W56/00

CPC classification number: H04L1/22 ,  H04B1/74 ,  H04B7/0617 ,  H04B7/0697 ,  H04W56/003

Abstract: Various embodiments provide for systems and methods for wireless communications that implement transmitter protection schemes using spatial combining. The protection scheme implemented by some embodiments provides for a number of benefits, including without limitation: hitless protection; constant power monitoring for each wireless channel being utilized; extra gain to wireless signals transmitted; beam steering, beam hopping, and beam alignment capabilities; and varying levels of transmission path protection (e.g., 1+1 protection, or 1+N protection). Additionally, the features of some embodiments may be applied to a variety of wireless communications systems including, for example, microwave wireless systems, cellular phone systems and WiFi systems.

Abstract translation: 各种实施例提供了使用空间组合实现发射机保护方案的无线通信的系统和方法。 由一些实施例实现的保护方案提供了许多益处，包括但不限于：无效保护; 正在利用的每个无线信道的恒功率监测; 传输无线信号的额外增益; 光束转向，光束跳跃和光束对准能力; 和传输路径保护级别（例如，1 + 1保护或1 + N保护）。 另外，一些实施例的特征可以应用于各种无线通信系统，包括例如微波无线系统，蜂窝电话系统和WiFi系统。

公开(公告)号：US20150055547A1

公开(公告)日：2015-02-26

申请号：US14465714

申请日：2014-08-21

Applicant: Aviat U.S., Inc.

Inventor： Sergio Licardie ,  Rishipal Arya ,  Chun-Hao Chen

IPC: H04B7/155

CPC classification number: H04B7/15557 ,  H04B7/14 ,  H04B7/15 ,  H04B7/15507 ,  H04B7/1555 ,  H04B17/309 ,  H04W88/06

Abstract: In some embodiments, a first RF signal is received at a wireless repeater, a signal quality is determined based on the first RF signal, the signal quality is analyzed based on a parameter, an operation mode is auto selected based on analysis of the signal quality, and a second RF signal based on the first RF signal is generated for transmission according to the selected operation mode. Under one mode, a first RAC of the wireless may generate data based on a first IF signal downconverted from a first RF signal. Based on the data, a second RAC of the wireless repeater may generate a second IF signal, which can be used to generate a second RF signal for transmission. Under another mode, the first RAC may provide the IF signal to the second RAC, which provides the IF signal for generation of the second RF signal.

Abstract translation: 在一些实施例中，在无线中继器处接收第一RF信号，基于第一RF信号确定信号质量，基于参数分析信号质量，基于信号质量的分析自动选择操作模式 并且根据所选择的操作模式生成基于第一RF信号的第二RF信号进行传输。 在一种模式下，无线的第一RAC可以基于从第一RF信号下变频的第一IF信号生成数据。 基于该数据，无线中继器的第二RAC可以生成第二IF信号，其可以用于生成用于传输的第二RF信号。 在另一模式下，第一RAC可以向第二RAC提供IF信号，该第二RAC提供用于产生第二RF信号的IF信号。

公开(公告)号：US20140378047A1

公开(公告)日：2014-12-25

申请号：US14311232

申请日：2014-06-20

Applicant: Aviat U.S., Inc.

Inventor： Paul A. Kennard

IPC: H04B7/155

CPC classification number: H04B7/15535

Abstract: Various embodiments provide for systems, methods, or apparatuses that provide a fronthaul architecture that facilitates high fidelity and low latency communication between a radio processing unit, such as a baseband unit (BBU), which may be located a central office (CO), and a remote transceiver, which may comprise a remote radio head (RRH) or a remote radio unit (RRU), which may be located at remote cell site.

Abstract translation: 各种实施例提供了提供前端架构的系统，方法或装置，其有助于可位于中心局（CO）的无线电处理单元（例如基带单元（BBU））之间的高保真度和低等待时间通信，以及 远程收发器，其可以包括可以位于远程小区站点处的远程无线电头（RRH）或远程无线电单元（RRU）。

公开(公告)号：US20140269255A1

公开(公告)日：2014-09-18

申请号：US13956296

申请日：2013-07-31

Applicant: Aviat U.S., Inc.

Inventor： Chaoming Zeng ,  Sergio Licardie

IPC: H04W24/04

CPC classification number: H04L45/245 ,  H04B7/10 ,  H04L1/00 ,  H04L12/4633 ,  H04L45/66 ,  H04L47/41 ,  H04L69/14 ,  H04L69/323 ,  H04L2212/00 ,  H04W24/04 ,  H04W76/15

Abstract: A first layer one link aggregation master comprises a first port coupled to receive customer traffic; a first channel; a second channel; an aggregation engine coupled to the first and second channels; a first switch circuit coupled to the first port and to the first channel, and configured to communicate the customer traffic from the first port over the first channel to the aggregation engine, the aggregation engine including a splitter circuit configured to use layer one information to segment at least a portion of the customer traffic into a first virtual container and a second virtual container, the aggregation engine further including an encapsulation circuit configured to encapsulate the second virtual container using Ethernet standards for transport over the second channel; a radio access card configured to generate an air frame based on the first virtual container for wireless transmission over a first wireless link of a link aggregation group to the receiver; and a second switch circuit coupled to the second channel, and configured to communicate the Ethernet-encapsulated second virtual container over an Ethernet cable to a slave for wireless transmission over a second wireless link of the link aggregation group to the receiver.

公开(公告)号：US20140226706A1

公开(公告)日：2014-08-14

申请号：US14231199

申请日：2014-03-31

Applicant: Aviat U.S., Inc.

Inventor： Tjo San Jao ,  Richard Bourdeau

IPC: H04B7/08

CPC classification number: H04B7/0814 ,  H04B7/0882 ,  H04B7/0888 ,  H04B17/309 ,  H04L1/0045 ,  H04L1/04 ,  H04L1/06 ,  H04L1/22 ,  H04L27/34

Abstract: In various embodiments, a first and second complex multiplier may be configured to receive an input signal and provide a baseband I component signal and a baseband Q component signal, respectively. A first and second filter may be configured to filter the baseband I component signal and the baseband Q component signal, respectively. An equalizer may be configured to equalize the filtered baseband I component signal and the filtered baseband Q component signal. A carrier recovery portion may be configured to generate a reference signal based on the equalized filtered baseband I component signal and the equalized filtered baseband Q component signal. A first and second multilevel comparator may be configured to receive the equalized filtered baseband I component signal from the carrier recovery portion and provide an output I and receive the equalized filtered baseband Q component signal and provide an output Q signal for further modulation.

Abstract translation: 在各种实施例中，第一和第二复数乘法器可被配置为分别接收输入信号并提供基带I分量信号和基带Q分量信号。 第一和第二滤波器可以被配置为分别对基带I分量信号和基带Q分量信号进行滤波。 均衡器可以被配置为对滤波的基带I分量信号和滤波的基带Q分量信号进行均衡。 载波恢复部分可以被配置为基于经均衡的滤波的基带I分量信号和均衡滤波的基带Q分量信号来产生参考信号。 第一和第二多电平比较器可以被配置为从载波恢复部分接收经均衡的滤波后的基带I分量信号，并且提供输出I并且接收均衡的滤波的基带Q分量信号并提供用于进一步调制的输出Q信号。

公开(公告)号：US20140191808A1

公开(公告)日：2014-07-10

申请号：US14184282

申请日：2014-02-19

Applicant: AVIAT U.S., INC.

Inventor： Frank Matsumoto ,  Youming Qin ,  Andres Goytia ,  Cuong Nguyen

IPC: H03F3/21

CPC classification number: H03F3/21 ,  H03F1/0272 ,  H03F1/3247 ,  H03F3/19 ,  H03F3/245

Abstract: Various embodiments described herein provide systems and methods for improved performance for power amplifiers, particularly GaN power amplifiers. According to some embodiments, a power amplifier (e.g., GaN power amplifier) utilizes an adaptive closed-loop control of the drain current of the power amplifier to achieve improved performance for the power amplifier. Additionally, for some embodiments, use of the adaptive closed-loop control of the drain current of the power amplifier depends on the power region in which the power amplifier is operating (e.g., depends on the radio frequency power region).

Abstract translation: 本文描述的各种实施例提供用于功率放大器，特别是GaN功率放大器的改进性能的系统和方法。 根据一些实施例，功率放大器（例如，GaN功率放大器）利用功率放大器的漏极电流的自适应闭环控制来实现功率放大器的改进的性能。 此外，对于一些实施例，功率放大器的漏极电流的自适应闭环控制的使用取决于功率放大器正在工作的功率区域（例如，取决于射频功率区域）。

公开(公告)号：US20140071809A1

公开(公告)日：2014-03-13

申请号：US14084484

申请日：2013-11-19

Applicant: Aviat U.S., Inc.

Inventor： Thanh H. Nguyen ,  Andrey A. Kochetkov

IPC: H04W24/04

CPC classification number: H04L45/28 ,  H04B1/74 ,  H04L1/0026 ,  H04L1/0036 ,  H04L1/22 ,  H04W24/04

Abstract: A system and method for protecting a received data stream. Active receivers and standby receivers are provided, each adaptable to receive a data stream on a traffic channel. Plural data processing units are operatively in communication with the receivers. At least one of the plural DPUs provides a switching signal to the receivers to switch the state of the active receiver to standby and the state of the standby receiver to active as a function of a quality measurement of the received data stream via the traffic channel.

Abstract translation: 一种用于保护接收的数据流的系统和方法。 提供了主动接收器和备用接收器，每个接收器和备用接收器适于在业务信道上接收数据流。 多个数据处理单元可操作地与接收器通信。 多个DPU中的至少一个向接收器提供切换信号，以将有源接收机的状态切换到待机状态，并且备用接收机的状态作为经由业务信道对接收到的数据流的质量测量的函数进行激活。

公开(公告)号：US08630600B1

公开(公告)日：2014-01-14

申请号：US13627996

申请日：2012-09-26

Applicant: Aviat U.S., Inc.

Inventor： Emerick Vann ,  Yen-Fang Chao ,  Youming Qin ,  Roland Matian

IPC: H04B17/00

CPC classification number: H04L1/206 ,  H03C3/406 ,  H03D3/009 ,  H03D7/168 ,  H04B1/0014 ,  H04B1/10 ,  H04B1/16 ,  H04B1/28 ,  H04B1/30 ,  H04L1/0036 ,  H04L1/203 ,  H04L1/208 ,  H04L27/38 ,  H04L27/3854

Abstract: Various embodiments provide for systems and methods for signal conversion of one modulated signal to another modulated signal using demodulation and then re-modulation. According to some embodiments, a signal receiving system may comprise an I/Q demodulator that demodulates a first modulated signal to an in-phase (“I”) signal and a quadrature (“Q”) signal, an I/Q signal adjustor that adaptively adjusts the Q signal to increase the signal-to-noise ratio (SNR) of a transitory signal that is based on a second modulated signal, and an I/Q modulator that modulates the I signal and the adjusted Q signal to the second modulated signal. To increase the SNR, the Q signal may be adjusted based on a calculated error determined for the transitory signal during demodulation by a demodulator downstream from the I/Q modulator.

Abstract translation: 各种实施例提供了用于使用解调然后再调制将一个调制信号信号转换到另一调制信号的系统和方法。 根据一些实施例，信号接收系统可以包括将第一调制信号解调为同相（“I”）信号和正交（“Q”）信号的I / Q解调器，I / Q信号调节器， 自适应地调整Q信号以增加基于第二调制信号的瞬态信号的信噪比（SNR），以及将I信号和经调整的Q信号调制为第二调制信号的I / Q调制器 信号。 为了增加SNR，可以基于在由I / Q调制器下游的解调器解调期间为瞬态信号确定的计算误差来调整Q信号。

公开(公告)号：US20130094554A1

公开(公告)日：2013-04-18

申请号：US13654294

申请日：2012-10-17

Applicant: Aviat U.S., Inc.

Inventor： Paul A. Kennard

IPC: H04B7/12 ,  H04W88/02

CPC classification number: H04J1/20 ,  H04B7/0613 ,  H04B7/0805 ,  H04B7/0817 ,  H04B7/10 ,  H04J11/0063 ,  H04J2011/0009 ,  H04L27/0002 ,  H04W88/085

Abstract: An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The antenna may be configured to receive first and second diversity receive signals. The antenna is further configured to transmit first and second diversity transmit signals. The first signal path may have a frequency converter configured to downconvert the first diversity receive signal to an intermediate frequency and to upconvert the first diversity transmit signal to a radio frequency. The second signal path may have a frequency converter configured to downconvert the second diversity receive signal to an intermediate frequency and to upconvert the second diversity transmit signal to the radio frequency. The N-plexer may be configured to provide the first and second diversity receive signals to a cable and to provide from the cable the first and second diversity transmit signals to the first signal path and the second signal path, respectively.

Abstract translation: 示例性系统包括至少一个天线，第一和第二信号路径以及N-plexer。 天线可以被配置为接收第一和第二分集接收信号。 天线还被配置为发送第一和第二分集发射信号。 第一信号路径可以具有频率转换器，其被配置为将第一分集接收信号下变频到中频，并将第一分集发射信号上变频到射频。 第二信号路径可以具有频率转换器，其被配置为将第二分集接收信号下变频到中频，并将第二分集发射信号上变频到射频。 N-plexer可以被配置为向电缆提供第一和第二分集接收信号，并且从电缆将第一和第二分集发射信号分别提供给第一信号路径和第二信号路径。

公开(公告)号：US12212449B2

公开(公告)日：2025-01-28

申请号：US18415364

申请日：2024-01-17

Applicant: Aviat U.S., Inc.

Inventor： Alain Hourtane ,  Sergio Licardie ,  Chaoming Zeng

IPC: H04L41/0604 ,  H03M13/09 ,  H04L1/00 ,  H04L12/42 ,  H04L41/0654 ,  H04L41/0663 ,  H04L45/00 ,  H04L45/28 ,  H04W24/04

Abstract: Rapid failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet transport channel standards. Thus, resilient wireless packet communications is provided using a hardware-assisted rapid transport channel failure detection algorithm and a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, this is provided in combination with their existing protocols, such as rapid spanning tree and link aggregation protocols, respectively.