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    RADIO FREQUENCY (RF) FRONT END HAVING MULTIPLE LOW NOISE AMPLIFIER MODULES
    34.
    发明公开
    RADIO FREQUENCY (RF) FRONT END HAVING MULTIPLE LOW NOISE AMPLIFIER MODULES 审中-公开
    FUNKFREQUENZ（RF）-FONTEND MIT MEHRERENGERÄUSCHARMENVERSTÄRKERMODULEN

    公开(公告)号：EP3143700A1

    公开(公告)日：2017-03-22

    申请号：EP15722426.2

    申请日：2015-05-08

    Applicant: Qualcomm Incorporated

    Inventor： PAN, Dongling ,  TASIC, Aleksandar Miodrag ,  RANGARAJAN, Rajagopalan ,  LEUNG, Lai Kan ,  NARATHONG, Chiewcharn ,  TANG, Yiwu

    IPC: H04B1/00

    CPC classification number: H04L27/063 ,  H04B1/005 ,  H04B1/10 ,  H04B7/26

    Abstract: A radio frequency (RF) front end having multiple low noise amplifiers modules is disclosed. In an exemplary embodiment, an apparatus includes at least one first stage amplifier configured to amplify received carrier signals to generate at least one first stage carrier group. Each first stage carrier group includes a respective portion of the carrier signals. The apparatus also includes second stage amplifiers configured to amplify the first stage carrier groups. Each second stage amplifier configured to amplify a respective first stage carrier group to generate two second stage output signals that may be output to different demodulation stages where each demodulation stage demodulates a selected carrier signal.

    Abstract translation: 公开了具有多个低噪声放大器模块的射频（RF）前端。 在示例性实施例中，装置包括至少一个第一级放大器，其被配置为放大接收到的载波信号以产生至少一个第一级载波组。 每个第一级载波组包括载波信号的相应部分。 该装置还包括被配置为放大第一级载波组的第二级放大器。 每个第二级放大器被配置为放大相应的第一级载波组以产生两个第二级输出信号，其可以被输出到不同的解调级，其中每个解调级解调所选择的载波信号。

    DYNAMIC SWITCHING OF LOCAL OSCILLATOR SIGNAL FREQUENCY FOR UP-CONVERSION AND DOWN-CONVERSION IN TIME DIVISION DUPLEX WIRELESS COMMUNICATION
    36.
    发明申请
    DYNAMIC SWITCHING OF LOCAL OSCILLATOR SIGNAL FREQUENCY FOR UP-CONVERSION AND DOWN-CONVERSION IN TIME DIVISION DUPLEX WIRELESS COMMUNICATION 审中-公开

    公开(公告)号：WO2021055137A1

    公开(公告)日：2021-03-25

    申请号：PCT/US2020/047311

    申请日：2020-08-21

    Applicant: QUALCOMM INCORPORATED

    Inventor： ASURI, Bhushan Shanti ,  TANG, Yiwu ,  PATEL, Shrenik

    IPC: H04B1/403

    Abstract: Wireless communication system may be configured to use different frequency bands for uplink communication and downlink communication. For example, a wireless system may use multiple frequency bands for downlink with carrier aggregation, and the wireless system may use only one frequency band for uplink. Up-conversion and down-conversion between baseband signals and RF signals, using a fixed frequency local oscillator signal may cause energy leak to an adjacent frequency band during transmission of signal and may result in interferences to other radio communication devices using the adjacent bands. To limit the amount of energy that leaks out of its assigned radio frequency bands, the UE may use local oscillator signals with different frequencies for up-conversion and down-conversion and may switch the frequencies of the local oscillator signals between reception of downlink signals and transmission of uplink signals.

    LOW POWER CURRENT RE-USING TRANSFORMER-BASED DUAL-BAND VOLTAGE CONTROLLED OSCILLATOR
    37.
    发明申请
    LOW POWER CURRENT RE-USING TRANSFORMER-BASED DUAL-BAND VOLTAGE CONTROLLED OSCILLATOR 审中-公开
    低功耗电流重新使用基于变压器的双电压控制振荡器

    公开(公告)号：WO2016204935A1

    公开(公告)日：2016-12-22

    申请号：PCT/US2016/033620

    申请日：2016-05-20

    Applicant: QUALCOMM INCORPORATED

    Inventor： FARAZIAN, Mohammad ,  MOSLEHI BAJESTAN, Masoud ,  TANG, Yiwu ,  PARK, Jong Min ,  RONG, Sujiang

    IPC: H03B5/12 ,  H03L7/099

    CPC classification number: H03B5/124 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0072 ,  H03L7/099

    Abstract: A dual-band voltage controlled oscillator (VCO) includes: a first oscillator circuit including a first inductor; a second oscillator circuit including a second inductor; a first mode switch configured to electrically connect or disconnect a first output terminal of the first oscillator circuit and a first output terminal of the second oscillator circuit; a second mode switch configured to electrically connect or disconnect a second output terminal of the first oscillator circuit and a second output terminal of the second oscillator circuit; a third mode switch configured to electrically connect or disconnect a first terminal of the first inductor and a first terminal of the second inductor; and a fourth mode switch configured to electrically connect or disconnect a second terminal of the first inductor and a second terminal of the second inductor.

    Abstract translation: 双频带压控振荡器（VCO）包括：第一振荡器电路，包括第一电感器; 包括第二电感器的第二振荡器电路; 第一模式开关，被配置为电连接或断开第一振荡电路的第一输出端和第二振荡电路的第一输出端; 第二模式开关，被配置为电连接或断开第一振荡电路的第二输出端和第二振荡电路的第二输出端; 第三模式开关，被配置为电连接或断开第一电感器的第一端子和第二电感器的第一端子; 以及第四模式开关，被配置为电连接或断开第一电感器的第二端子和第二电感器的第二端子。

    RADIO FREQUENCY (RF) FRONT END HAVING MULTIPLE LOW NOISE AMPLIFIER MODULES
    39.
    发明申请
    RADIO FREQUENCY (RF) FRONT END HAVING MULTIPLE LOW NOISE AMPLIFIER MODULES 审中-公开
    具有多个低噪声放大器模块的无线电频率（RF）前端

    公开(公告)号：WO2015175349A1

    公开(公告)日：2015-11-19

    申请号：PCT/US2015/029966

    申请日：2015-05-08

    Applicant: QUALCOMM INCORPORATED

    Inventor： PAN, Dongling ,  TASIC, Aleksandar Miodrag ,  RANGARAJAN, Rajagopalan ,  LEUNG, Lai Kan ,  NARATHONG, Chiewcharn ,  TANG, Yiwu

    IPC: H04B1/00

    CPC classification number: H04L27/063 ,  H04B1/005 ,  H04B1/10 ,  H04B7/26

    Abstract: A radio frequency (RF) front end having multiple low noise amplifiers modules is disclosed. In an exemplary embodiment, an apparatus includes at least one first stage amplifier configured to amplify received carrier signals to generate at least one first stage carrier group. Each first stage carrier group includes a respective portion of the carrier signals. The apparatus also includes second stage amplifiers configured to amplify the first stage carrier groups. Each second stage amplifier configured to amplify a respective first stage carrier group to generate two second stage output signals that may be output to different demodulation stages where each demodulation stage demodulates a selected carrier signal.

    Abstract translation: 公开了具有多个低噪声放大器模块的射频（RF）前端。 在示例性实施例中，装置包括至少一个第一级放大器，其配置成放大接收的载波信号以产生至少一个第一级载波组。 每个第一级载波组包括载波信号的相应部分。 该装置还包括配置成放大第一级载波组的第二级放大器。 每个第二级放大器被配置为放大相应的第一级载波组以产生两个第二级输出信号，其可以被输出到不同的解调级，其中每个解调级解调所选择的载波信号。

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