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公开(公告)号：US11984916B2
公开(公告)日：2024-05-14
申请号：US17485047
申请日：2021-09-24
Applicant: Qualcomm Incorporated
Inventor： Vladimir Aparin , Aidin Bassam , Nicholas Michael Carbone
CPC classification number: H04B1/04 , H04B1/62 , H04B2001/0416
Abstract: An apparatus is disclosed for transmission setting selection. In an example aspect, an apparatus includes a wireless interface device with a communication processor and a radio-frequency front-end. The communication processor is configured to provide a signal. The radio-frequency front-end is coupled to the communication processor and configured to accept the signal. The radio-frequency front-end includes an amplifier configured to amplify the signal based on one or more amplifier settings. The wireless interface device is configured to adjust the one or more amplifier settings responsive to an output power being changed with a gain being unchanged.
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公开(公告)号：US20230283318A1
公开(公告)日：2023-09-07
申请号：US17687119
申请日：2022-03-04
Applicant: QUALCOMM Incorporated
Inventor： Igor GUTMAN , Christian PIETSCH
CPC classification number: H04B1/62 , H04W52/18 , H04L1/0009 , H04B1/04 , H04B2001/0425
Abstract: Certain aspects of the present disclosure provide techniques for applying digital pre-distortion with frequency selectivity to a transmission signal. An example technique includes determining one or more target parameters of an input signal, the one or more target parameters being based on frequency of the input signal. The technique also includes applying digital pre-distortion with frequency selectivity to the input signal according to the one or more target parameters of the input signal to generate a resulting signal. The technique further includes processing the resulting signal to generate an analog signal for transmission and transmitting the analog signal.
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公开(公告)号：US11716113B2
公开(公告)日：2023-08-01
申请号：US17301613
申请日：2021-04-08
Applicant: QUALCOMM INCORPORATED
Inventor： Kiran Venugopal , Wooseok Nam , Sungwoo Park , Tianyang Bai , Tao Luo , Junyi Li
CPC classification number: H04B1/62 , H04L5/0048 , H04W24/08 , H04W72/23
Abstract: Wireless communication devices, systems, and methods related to mechanisms for transmitting and receiving reference signals in a high-speed train (HST) single frequency network (SFN). A base station (BS) determines a first frequency pre-compensation value for a reference signal transmitted via a first transmission and reception point (TRP) and a second frequency pre-compensation value for a reference signal via a second TRP. The BS notifies a user equipment (UE) of the first and second pre-compensation values through at least one of the TRPs. The BS applies the first pre-compensation value to the reference signal via the first TRP and the second pre-compensation value to the reference signal via the second TRP. The UE adjusts its tracking loop for the reference signal based on the pre-compensation values, reducing estimation and/or search overhead at the UE.
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公开(公告)号：US20230102955A1
公开(公告)日：2023-03-30
申请号：US17485047
申请日：2021-09-24
Applicant: Qualcomm Incorporated
Inventor： Vladimir Aparin , Aidin Bassam , Nicholas Michael Carbone
Abstract: An apparatus is disclosed for transmission setting selection. In an example aspect, an apparatus includes a wireless interface device with a communication processor and a radio-frequency front-end. The communication processor is configured to provide a signal. The radio-frequency front-end is coupled to the communication processor and configured to accept the signal. The radio-frequency front-end includes an amplifier configured to amplify the signal based on one or more amplifier settings. The wireless interface device is configured to adjust the one or more amplifier settings responsive to an output power being changed with a gain being unchanged.
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公开(公告)号：US20220393707A1
公开(公告)日：2022-12-08
申请号：US17704134
申请日：2022-03-25
Applicant: BESTECHNIC (SHANGHAI) CO., LTD.
Inventor： Weifeng Tong , Liang Zhang , Zhiqi Wang
Abstract: In certain aspects, a device for wireless transmission includes a transmission path, a feedback path, and a DPD control module. The transmission path includes a digital pre-distortion (DPD) conversion module configured to perform pre-distortion processing on an amplitude and a phase of a transmission signal based on a pre-distortion processing strategy. The transmission path further includes a power amplifier coupled to a downstream of the DPD conversion module and configured to amplify a power of the transmission signal. The feedback path is coupled to the transmission path at the downstream of the power amplifier and configured to generate a feedback signal. The feedback path includes a static gain compensation module configured to be activated during an initial time period of each frame to track and update a static gain for the feedback signal and configured to hold the static gain after the initial time period of each frame. The DPD control module is coupled to the feedback path and the DPD conversion module and configured to adjust the pre-distortion processing strategy based on an amplitude difference and a phase difference between the transmission signal and the feedback signal.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11265029B2
公开(公告)日：2022-03-01
申请号：US16948977
申请日：2020-10-08
Applicant: Skyworks Solutions, Inc.
Inventor： Anand Raghavan
IPC: H04B1/00 , H04B1/10 , H04B1/3827 , H04B1/04 , H04B1/62
Abstract: Radio frequency (RF) communication systems with coexistence management are provided herein. In certain embodiments, a method of coexistence management in a mobile device includes providing an RF receive signal from a first front end system to a first transceiver, generating an RF transmit signal and an RF observation signal using a second front end system, the RF observation signal generated based on observing the RF transmit signal, generating digital observation data based on the RF observation signal using a second transceiver, downconverting the RF receive signal to generate a baseband receive signal using the first transceiver, and compensating the baseband receive signal for RF signal leakage based on the digital observation data using the first transceiver.
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公开(公告)号：US20220021406A1
公开(公告)日：2022-01-20
申请号：US16928309
申请日：2020-07-14
Applicant: Intel Corporation
Inventor： Steffen TRAUTMANN , Alexander KAHL , Thomas NIEDERFRINIGER , Harald ENZINGER
Abstract: Examples relate to a concept for a Radio-Frequency (RF) frontend, and for a communication device comprising such an RF frontend. A radio-frequency frontend apparatus comprises a receive branch, comprising circuitry configured to obtain a received signal and a digital pre-distortion feedback signal from an external transceiver device. The radio-frequency frontend apparatus comprises power measurement circuitry configured to generate a first signal that represents a power of the received signal based on the received signal, and to generate a second signal that represents a power of an amplified signal based on the digital pre-distortion feedback signal, the amplified signal being a signal that is amplified by a power amplifier of the external transceiver device.
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公开(公告)号：US11190230B1
公开(公告)日：2021-11-30
申请号：US16887814
申请日：2020-05-29
Applicant: Corning Research & Development Corporation
Inventor： Yury Abramov , Roi Yosy Ziv
Abstract: Wide bandwidth digital pre-distortion (DPD) in a remote unit(s) for a wireless communications system (WCS) is disclosed. In embodiments disclosed herein, a remote unit(s) includes at least two transceiver circuits, each configured to process (e.g., perform DPD) a respective downlink digital communications signal corresponding to a portion of the carrier bandwidth. Each of the transceiver circuits is further configured to convert the respective downlink digital communications signal into a respective downlink RF communications signal. The respective downlink RF communications signals generated by the transceiver circuits are subsequently combined to form a downlink RF communications signal(s) associated with the carrier bandwidth. By employing multiple transceiver circuits in the remote unit(s) to each handle a portion of the carrier bandwidth, it may be possible to mitigate processing bandwidth limitations of the remote unit(s), thus making it possible to satisfy the regulatory and/or operational requirements for supporting wide bandwidth communications in the WCS.
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公开(公告)号：US20210367624A1
公开(公告)日：2021-11-25
申请号：US17196463
申请日：2021-03-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngsea CHO , Jiseon PAEK , Wan KIM , Daechul JEONG
Abstract: A digital radio frequency (RF) transmitter including processing circuitry configured to generate first through third pattern signals based on a pattern of an inphase (I)-quadrature (Q) binary data pair and a pattern of an inverted I-Q binary data pair, the first through third pattern signals having a same pattern and different phases, and a switched-capacitor digital-to-analog converter (SC-DAC) configured to remove an n-th harmonic component of an RF analog signal by amplifying the first through third pattern signals to have a certain magnitude ratio and synthesizing the amplified first through third pattern signals into the RF analog signal, where “n” is an integer of at least 3, may be provided.
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公开(公告)号：US10938351B2
公开(公告)日：2021-03-02
申请号：US16354234
申请日：2019-03-15
Applicant: Qorvo US, Inc.
Inventor： Nadim Khlat
Abstract: An envelope tracking system having delay compensation circuitry is disclosed. The envelope tracking system includes transmit circuitry configured to receive an input transmit signal, a gain control signal, and delay compensation values. The envelope tracking system is further configured to generate an envelope tracking signal based on the input transmit signal, the gain control signal, and the delay compensation values, and generate an output transmit signal based on the input transmit signal. The envelope tracking system also includes a power amplifier configured to generate an amplified transmit signal based on the output transmit signal and an operating voltage. The envelope tracking system further includes an envelope tracking integrated circuit configured to control the operating voltage based on the envelope tracking signal. The delay compensation circuitry is configured to generate the delay compensation values based on a peak-to-average ratio of a given modulation type and the gain control signal.
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