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公开(公告)号：US09197466B2
公开(公告)日：2015-11-24
申请号：US14058160
申请日：2013-10-18
Applicant: Broadcom Corporation
Inventor： Alireza Tarighat Mehrabani
IPC: H04L27/00
CPC classification number: H04L27/00 , H04L27/14 , H04L2027/0026 , H04L2027/0067
Abstract: A method of compensating carrier tone generation between duty cycles includes receiving a carrier frequency signal and a reference frequency signal, where the carrier frequency signal is mixed with a communication signal in a signal path. The method includes determining a first and second time differences between the carrier frequency signal and the reference frequency signal at respective clock edges of the reference frequency signal. The method includes converting the first time difference to a first corresponding phase value and the second time difference to a second corresponding phase value based on an operating frequency, and determining a phase difference between the first corresponding phase value and the second corresponding phase value. In turn, the method includes adjusting the communication signal with the phase difference independent of the signal path to maintain phase continuity in the signal path between the duty cycles.
Abstract translation: 在占空比之间补偿载波产生的方法包括接收载波频率信号和参考频率信号，其中载波频率信号与信号路径中的通信信号混合。 该方法包括在参考频率信号的各个时钟沿确定载波频率信号和参考频率信号之间的第一和第二时间差。 该方法包括基于工作频率将第一时间差转换为第一对应相位值和第二时间差到第二对应相位值，以及确定第一对应相位值和第二对应相位值之间的相位差。 反过来，该方法包括以独立于信号路径的相位差来调整通信信号，以维持占空比之间的信号路径中的相位连续性。
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2.发明授权公开(公告)号：US09197255B2
公开(公告)日：2015-11-24
申请号：US14032688
申请日：2013-09-20
Applicant: BROADCOM CORPORATION
Inventor： Mohsen Pourkhaatoun , Philippe Riondet , Alireza Tarighat Mehrabani , Vipin Kumar Aggarwal
CPC classification number: H04B1/0458 , H03F1/0238 , H03F1/34 , H03F3/195 , H03F3/24 , H03F3/245 , H04B2001/0416 , H04B2001/0433
Abstract: A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.
Abstract translation: RF发射机包括功率放大器，其产生用出站数据调制的发射信号，以经由天线部分传输到远程通信设备。 基于平均功率跟踪信号调整对功率放大器供电的电源电压。 测量来自天线部分的反射功率。 基于反射功率来调整平均功率跟踪信号以补偿天线部分的阻抗的变化并保持期望的线性度。
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公开(公告)号：US09041444B1
公开(公告)日：2015-05-26
申请号：US14109498
申请日：2013-12-17
Applicant: Broadcom Corporation
Inventor： Alireza Tarighat Mehrabani , Behzad Nourani
CPC classification number: H03L7/00 , H03L7/0805 , H03L7/1976
Abstract: Methods, systems, and apparatuses are described for compensating for an undesired fractional spur due to a PLL in a communication system. The communication system includes a time-to-digital converter (TDC) that is configured to execute in parallel to the PLL. The TDC is configured to determine a phase difference between a reference frequency and an output oscillation signal provided by the PLL. The phase difference is received by a processor to estimate particular characteristics of the undesired fractional spur, and the estimate of the characteristics is used to construct an estimate of the undesired fractional spur.
Abstract translation: 描述了用于补偿由通信系统中的PLL引起的不期望的分数杂散的方法，系统和装置。 通信系统包括被配置为与PLL并行执行的时间 - 数字转换器（TDC）。 TDC被配置为确定由PLL提供的参考频率和输出振荡信号之间的相位差。 相位差由处理器接收以估计不想要的分数支线的特定特性，并且使用特征的估计来构造不期望的分数支线的估计。
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公开(公告)号：US20140341318A1
公开(公告)日：2014-11-20
申请号：US13913327
申请日：2013-06-07
Applicant: Broadcom Corporation
Inventor： Mohsen Pourkhaatoun , Dmitriy Rozenblit , Masoud Kahrizi , Alireza Tarighat Mehrabani
IPC: H04B1/04
CPC classification number: H04B1/0475 , H04W52/0251 , H04W52/0258 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/166 , Y02D70/168 , Y02D70/23 , Y02D70/40
Abstract: Average Power Tracking (APT) is a technique that can be utilized for vary the supply voltage to a power amplifier (PA) on a timeslot basis in order to reduce power consumption of the PA. Systems and methods are provided for maximizing power savings associated with the PA by utilizing APT in a continuous and aggressive manner. Additionally, the systems and methods can further compensate for variations in temperature, frequency, antenna load, and peak to average power ratio (PAPR) without sacrificing the power savings.
Abstract translation: 平均功率跟踪（APT）是一种技术，可以用于在时隙上改变功率放大器（PA）的电源电压，以降低PA的功耗。 提供了系统和方法，通过以连续和积极的方式利用APT来最大化与PA相关联的功率节省。 另外，系统和方法可以进一步补偿温度，频率，天线负载和峰值与平均功率比（PAPR）的变化，而不会牺牲功率节省。
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公开(公告)号：US09860760B2
公开(公告)日：2018-01-02
申请号：US14952871
申请日：2015-11-25
Applicant: BROADCOM CORPORATION
Inventor： Alireza Tarighat Mehrabani , Michael Boers , Masoud Kahrizi , Tirdad Sowlati , Bagher Afshar , Payam Torab Jahromi , Sean Timothy Nicolson , Brima Babatunde Ibrahim
CPC classification number: H04W16/28 , H04W88/085
Abstract: A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (RFICs) and at least one secondary RFIC. Each of the one or more primary RFICs is configured to receive an intermediate frequency (IF) signal from a baseband processor, upconvert the IF signal to a radio frequency (RF) signal, and transmit the RF signal to one or more secondary RFICs. The secondary RFICs under each of the one or more primary RFICs are configured to receive the RF signal from the corresponding primary RFIC, phase shift and amplify the RF signal, and transmit the RF signal via a plurality of antenna elements.
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Patent Agency Ranking
6.发明授权Configurable receiver architecture for carrier aggregation with multiple-input multiple-output 有权可配置的接收机架构，用于具有多输入多输出的载波聚合公开(公告)号：US09270303B2
公开(公告)日：2016-02-23
申请号：US14144043
申请日：2013-12-30
Applicant: Broadcom Corporation
Inventor： Masound Kahrizi , Alireza Tarighat Mehrabani
CPC classification number: H04B7/0413 , H04B1/0067 , H04B7/0689 , H04W88/06
Abstract: A wireless communication system and method that includes configurable Carrier Aggregation (CA) and/or Multiple-input Multiple-output (MIMO) operational modes. In CA, multiple carriers (i.e., channel bundling) are aggregated and jointly used for transmission to/from a single terminal. Downlink inter-band carrier aggregation increases the downlink data rates by routing two signals, received in different frequency bands, simultaneously to two active receivers in the RF transceiver. MIMO utilizes two additional receivers as diversity paths and the frequency generation can be shared between main and diversity path for each carriers.
Abstract translation: 一种包括可配置载波聚合（CA）和/或多输入多输出（MIMO）操作模式的无线通信系统和方法。 在CA中，多个载波（即信道绑定）被聚合并联合用于向/从单个终端传输。 下行链路带内载波聚合通过将在不同频带中接收的两个信号同时路由到RF收发器中的两个主动接收机来增加下行链路数据速率。 MIMO利用两个附加接收机作为分集路径，并且可以在每个载波的主路段和分集路径之间共享频率生成。
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公开(公告)号：US09154196B2
公开(公告)日：2015-10-06
申请号：US14041695
申请日：2013-09-30
Applicant: BROADCOM CORPORATION
Inventor： Ahmadreza Rofougaran , Alireza Tarighat Mehrabani , Maryam Rofougaran
CPC classification number: H04B7/0404 , H04B1/401 , H04B1/525
Abstract: A wireless communication device front end includes power amplifiers, low noise amplifiers, and a distributed antenna system. The distributed antenna system includes antennas and an antenna coupling circuit. The antenna coupling circuit receives an outbound signal of a first wireless communication from a power amplifier and sends first and second components of the outbound signal to first and second antennas. The antenna coupling circuit also receives an inbound signal of a second wireless communication from a third antenna and sends the inbound signal to a low noise amplifier. The third antenna is a distance from the first antenna and from the second antenna such that, in air, the outbound signal is attenuated at the third antenna.
Abstract translation: 无线通信设备前端包括功率放大器，低噪声放大器和分布式天线系统。 分布式天线系统包括天线和天线耦合电路。 天线耦合电路从功率放大器接收第一无线通信的出站信号，并将出站信号的第一和第二分量发送到第一和第二天线。 天线耦合电路还从第三天线接收第二无线通信的入站信号，并将入站信号发送到低噪声放大器。 第三天线距离第一天线和第二天线的距离，使得在空中，出站信号在第三天线被衰减。
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公开(公告)号：US20150145568A1
公开(公告)日：2015-05-28
申请号：US14109498
申请日：2013-12-17
Applicant: Broadcom Corporation
Inventor： Alireza Tarighat Mehrabani , Behzad Nourani
IPC: H03L7/00
CPC classification number: H03L7/00 , H03L7/0805 , H03L7/1976
Abstract: Methods, systems, and apparatuses are described for compensating for an undesired fractional spur due to a PLL in a communication system. The communication system includes a time-to-digital converter (TDC) that is configured to execute in parallel to the PLL. The TDC is configured to determine a phase difference between a reference frequency and an output oscillation signal provided by the PLL. The phase difference is received by a processor to estimate particular characteristics of the undesired fractional spur, and the estimate of the characteristics is used to construct an estimate of the undesired fractional spur.
Abstract translation: 描述了用于补偿由通信系统中的PLL引起的不期望的分数杂散的方法，系统和装置。 通信系统包括被配置为与PLL并行执行的时间 - 数字转换器（TDC）。 TDC被配置为确定由PLL提供的参考频率和输出振荡信号之间的相位差。 相位差由处理器接收以估计不想要的分数支线的特定特性，并且使用特征的估计来构造不期望的分数支线的估计。
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公开(公告)号：US09900196B2
公开(公告)日：2018-02-20
申请号：US14952882
申请日：2015-11-25
Applicant: BROADCOM CORPORATION
CPC classification number: H04L27/18 , H04B7/0408 , H04B7/063 , H04W16/28 , H04W52/38 , H04W76/27 , H04W88/085
Abstract: A system implementing switching diversity in a scalable radio frequency communication system includes a primary radio frequency integrated circuit (RFIC), a first secondary RFIC, and a second secondary RFIC. The first secondary RFIC is configured to receive a radio frequency (RF) signal from a device via antenna elements based on a first beam setting, and transmit the RF signal to the primary RFIC. The primary RFIC is configured to receive the RF signal; downconvert the RF signal to an intermediate frequency (IF) signal; transmit the IF signal to a baseband processor; receive, from the baseband processor, a control signal including a second beam setting; and transmit the control signal to the second secondary RFIC. The second secondary RFIC is configured to receive the control signal from the first primary RFIC, and receive the first RF signal from the device via second antenna elements based on the second beam setting.
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公开(公告)号：US09843465B2
公开(公告)日：2017-12-12
申请号：US14952863
申请日：2015-11-25
Applicant: BROADCOM CORPORATION
CPC classification number: H04L27/18 , H04B7/0408 , H04B7/063 , H04W16/28 , H04W52/38 , H04W76/27 , H04W88/085
Abstract: A device implementing a distributed dynamic configuration of a scalable radio frequency communication system includes a primary radio frequency (RF) integrated circuit (RFIC) and at least one secondary RFIC. The primary RFIC includes at least one phase shifter, and the primary RFIC may be configured to apply a first phase shift to an RF signal using the at least one first phase shifter, and to transmit the RF signal to at least one secondary RFIC. The at least one secondary RFIC includes at least one second phase shifter, and the at least one secondary RFIC may be configured to apply a second phase shift to the RF signal using the at least one second phase shifter, and to transmit the RF signal via at least one antenna element. The first and second phase shifts may be received by the primary RFIC from a baseband processor.
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