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21.发明授权公开(公告)号：US09379749B2
公开(公告)日：2016-06-28
申请号：US14704573
申请日：2015-05-05
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Chiewcharn Narathong , Rajagopalan Rangarajan , Dongling Pan , Yiwu Tang , Aleksandar Miodrag Tasic
CPC classification number: H04B1/1081 , H03B2202/044 , H03B2202/046 , H04B1/005 , H04B1/0475 , H04B1/0483 , H04B1/525 , H04B15/06 , H04B2001/0491
Abstract: Aspects of a wireless apparatus for configuring a plurality of VCOs are provided. The apparatus may be a UE. The UE receives a configuration for a plurality of carriers. Each carrier corresponds to a different LO frequency. In addition, the UE determines a VCO frequency for generating each LO frequency. Further, the UE assigns each determined VCO frequency to each of a plurality of VCO modules based on a distance between the VCO modules and each of the determined VCO frequencies. The plurality of VCO modules are of a set of VCO modules including at least three VCO modules.
Abstract translation: 提供了用于配置多个VCO的无线设备的方面。 该装置可以是UE。 UE接收多个载波的配置。 每个载波对应于不同的LO频率。 此外，UE确定用于产生每个LO频率的VCO频率。 此外，UE基于VCO模块之间的距离和所确定的VCO频率中的每一个来将每个确定的VCO频率分配给多个VCO模块中的每一个。 多个VCO模块是包括至少三个VCO模块的一组VCO模块。
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公开(公告)号：US20150056940A1
公开(公告)日：2015-02-26
申请号：US13974631
申请日：2013-08-23
Applicant: QUALCOMM Incorporated
Inventor： Rajagopalan Rangarajan , Chirag Dipak Patel
CPC classification number: H04B1/10 , H03F1/3205 , H03F1/565 , H03F3/19 , H03F3/601 , H03F2200/111 , H03F2200/246 , H03F2200/255 , H03F2200/294 , H03F2200/451 , H03F2200/495 , H03F2200/501 , H03F2200/543
Abstract: A circuit, a method and an apparatus, are described. A radio frequency (RF) signal received from a transmission line is provided to the source of a transistor in a common-gate amplification circuit. A series resonance connected to the source provides a low impedance path to ground for interfering RF components in the RF signal. The series resonance is tuned to provide a high impedance to a band of frequencies centered on a frequency of interest and to shunt interfering RF components outside the band of frequencies centered on the frequency of interest. The interfering RF components may include a harmonic of the frequency of interest.
Abstract translation: 描述了电路，方法和装置。 从传输线接收的射频（RF）信号被提供给共栅放大电路中的晶体管的源极。 连接到源极的串联谐振器为RF信号中的RF部件提供了一个低阻抗接地路径。 串联谐振被调谐以向以感兴趣的频率为中心的频率带提供高阻抗，并且在感兴趣的频率为中心的频率带之外分流干扰的RF分量。 干扰RF分量可以包括感兴趣频率的谐波。
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公开(公告)号：US12107673B2
公开(公告)日：2024-10-01
申请号：US17468281
申请日：2021-09-07
Applicant: QUALCOMM Incorporated
Inventor： Peter Shah , Ajay Devadatta Kanetkar , Siavash Ekbatani , Yuanning Yu , Shrenik Patel , Dongjiang Qiao , Rajagopalan Rangarajan
IPC: H04K3/00 , H04B17/318
CPC classification number: H04K3/22 , H04B17/318 , H04K3/45
Abstract: Certain aspects of the present disclosure generally relate to jamming detection for radio frequency (RF) front-end circuitry. For example, certain aspects provide an apparatus having a first counter configured to count a number of times that a power of a reception signal exceeds a first threshold. The apparatus also includes a second counter configured to count a number of measurements of the power of the reception signal. The apparatus further includes control logic having a first input coupled to an output of the first counter and having a second input coupled to an output of the second counter. The control logic is configured to determine an amount of jamming over a measurement window based on the number of times that the power of the reception signal exceeds the first threshold and on the number of measurements.
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公开(公告)号：US11283409B2
公开(公告)日：2022-03-22
申请号：US16557961
申请日：2019-08-30
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Xinmin Yu , Chirag Dipak Patel , Rajagopalan Rangarajan
Abstract: In certain aspects, a receiver includes first amplifiers, wherein each one of the first amplifiers comprises an input and an output. The receiver also includes second amplifiers, wherein each one of the second amplifiers comprises an input and an output, and the outputs of the second amplifiers are coupled to a combining node. The receiver also includes transmission lines, wherein each one of the transmission lines is coupled between the output of a respective one of the first amplifiers and the input of a respective one of the second amplifiers. The receiver further includes a load coupled to the combining node, and receiver elements, wherein each one of the receiver elements comprises an input and an output, and the output of each one of the receiver elements is coupled to the input of a respective one of the first amplifiers.
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公开(公告)号：US10439593B2
公开(公告)日：2019-10-08
申请号：US15712406
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Timothy Donald Gathman , Lai Kan Leung , Chirag Dipak Patel , Rajagopalan Rangarajan
Abstract: Certain aspects of the present disclosure relate to multi-band filter architectures and methods for filtering signals using the multi-band filter architectures. One example multi-band filter generally includes a transconductance-capacitance (gm-C) filter and a reconfigurable load impedance coupled to an output of the gm-C filter, the reconfigurable load impedance comprising a first gyrator circuit coupled to a second gyrator circuit.
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Patent Agency Ranking
26.发明授权公开(公告)号：US10250314B2
公开(公告)日：2019-04-02
申请号：US15638215
申请日：2017-06-29
Applicant: QUALCOMM Incorporated
Inventor： Lai Kan Leung , Chiewcharn Narathong , Rajagopalan Rangarajan , Dongling Pan , Yiwu Tang , Aleksandar Miodrag Tasic
IPC: H04B1/16 , H04B7/08 , H04L27/152 , H04B1/00
Abstract: Certain aspects of the present disclosure provide multi-way diversity receivers with multiple synthesizers. Such a multi-way diversity receiver may be implemented in a carrier aggregation (CA) transceiver. One example wireless reception diversity circuit generally includes three or more receive paths for processing received signals and two or more frequency synthesizing circuits configured to generate local oscillating signals to downconvert the received signals. Each of the frequency synthesizing circuits is shared by at most two of the receive paths, and each pair of the frequency synthesizing circuits may generate a pair of local oscillating signals having the same frequency.
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公开(公告)号：US10153934B1
公开(公告)日：2018-12-11
申请号：US15730040
申请日：2017-10-11
Applicant: QUALCOMM Incorporated
Inventor： Timothy Donald Gathman , Chirag Dipak Patel , Lai Kan Leung , Xinmin Yu , Rajagopalan Rangarajan
Abstract: In certain aspects, a circuit comprises a low noise amplifier (LNA) configured to receive a radio frequency (RF) signal, a first mixer coupled to the low noise amplifier (LNA), and a first trans-impedance filter coupled to the first mixer. The first trans-impedance filter comprises a tunable inductor and capacitor (LC) network configured to be a portion of a doubly terminated LC ladder filter and a trans-impedance amplifier (TIA) coupled to the tunable inductor and capacitor (LC) network. The circuit further comprises a second mixer coupled to the low noise amplifier (LNA) and a second trans-impedance filter coupled to the second mixer.
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公开(公告)号：US20180013600A1
公开(公告)日：2018-01-11
申请号：US15715006
申请日：2017-09-25
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Miodrag Tasic , Chiewcharn Narathong , Christian Holenstein , Dongling Pan , Yiwu Tang , Rajagopalan Rangarajan , Lai Kan Leung
IPC: H04L27/26 , H04L12/761 , H04B1/00 , H03F3/24 , H03F3/193 , H04L12/709 , H03F1/22
CPC classification number: H04L27/2653 , H03F1/223 , H03F3/193 , H03F3/245 , H04B1/0064 , H04L5/001 , H04L27/2647 , H04L45/16 , H04L45/245
Abstract: An apparatus includes a low noise amplifier (LNA) multiplexer configured to receive a plurality of radio frequency (RF) signals at a plurality of input terminals and to combine the plurality of RF signals into a combined RF signal that is output at an output terminal. The LNA multiplexer includes a plurality of input signal paths, and each input signal path is coupleable to a respective input terminal of the plurality of input terminals and is configured to receive a respective RF signal of the plurality of RF signals. The apparatus further includes an LNA demultiplexer configured to receive the combined RF signal at an input port coupled to the output terminal and to distribute the combined RF signal to a plurality of output ports, each output port of the plurality of output ports configured to output the combined RF signal to a respective downconverter of a plurality of downconverters.
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公开(公告)号：US09774485B2
公开(公告)日：2017-09-26
申请号：US14664492
申请日：2015-03-20
Applicant: QUALCOMM Incorporated
Inventor： Aleksandar Miodrag Tasic , Chiewcharn Narathong , Christian Holenstein , Dongling Pan , Yiwu Tang , Rajagopalan Rangarajan , Lai Kan Leung
IPC: H04L27/26 , H04L12/761 , H04L12/709 , H03F1/22 , H04B1/00 , H03F3/193 , H03F3/24
CPC classification number: H04L27/2653 , H03F1/223 , H03F3/193 , H03F3/245 , H04B1/0064 , H04L45/16 , H04L45/245
Abstract: Multiplex modules for use in carrier aggregation receivers are disclosed. In an exemplary embodiment, an apparatus includes an LNA multiplexer configured to receive a plurality of RF signals at a plurality of input terminals and to combine the RF signals into a combined RF signal that is output from an output terminal. The apparatus also includes an LNA demultiplexer configured to receive the combined RF signal at an input port that is connected to the output terminal and to distribute the combined RF signal to a plurality of output ports.
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公开(公告)号：US09615369B2
公开(公告)日：2017-04-04
申请号：US14644677
申请日：2015-03-11
Applicant: QUALCOMM Incorporated
Inventor： Rajagopalan Rangarajan , Chiewcharn Narathong , Lai Kan Leung , Dongling Pan , Aleksandar Miodrag Tasic , Yiwu Tang
IPC: H04W72/04 , H04L12/709 , H04W88/06 , H04B1/00 , H04B15/06
CPC classification number: H04W72/0453 , H04B1/005 , H04B15/06 , H04L45/245 , H04W88/06
Abstract: Methods and apparatus including: setting up a plurality of configurations for a plurality of local oscillator (LO) paths of a carrier aggregation (CA) transceiver operating with a plurality of bands; calculating and comparing frequencies for each LO path of the plurality of LO paths and at least one divider ratio of LO dividers for each band of the plurality of bands to identify frequency conflicts; and reconfiguring the LO dividers for the plurality of LO paths and the plurality of bands when the frequency conflicts are identified.
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