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1. 发明申请

US20230102955A1 Transmission Setting Selection 有权
公开(公告)号：US20230102955A1
公开(公告)日：2023-03-30
申请号：US17485047
申请日：2021-09-24
申请人： Qualcomm Incorporated
发明人： Vladimir Aparin , Aidin Bassam , Nicholas Michael Carbone
IPC分类号： H04B1/04 , H04B1/62
摘要： 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.

2. 发明申请

US20220393707A1 DEVICE AND METHOD FOR WIRELESS TRANSMISSION 有权
公开(公告)号：US20220393707A1
公开(公告)日：2022-12-08
申请号：US17704134
申请日：2022-03-25
申请人： BESTECHNIC (SHANGHAI) CO., LTD.
发明人： Weifeng Tong , Liang Zhang , Zhiqi Wang
IPC分类号： H04B1/04 , H04B1/62
摘要： 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.

3. 发明授权

US11265029B2 Radio frequency communication systems with coexistence management based on digital observation data 有权
公开(公告)号：US11265029B2
公开(公告)日：2022-03-01
申请号：US16948977
申请日：2020-10-08
申请人： Skyworks Solutions, Inc.
发明人： Anand Raghavan
IPC分类号： H04B1/00 , H04B1/10 , H04B1/3827 , H04B1/04 , H04B1/62
摘要： 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.

4. 发明申请

US20220021406A1 Concept for an RF Frontend 有权
公开(公告)号：US20220021406A1
公开(公告)日：2022-01-20
申请号：US16928309
申请日：2020-07-14
申请人： Intel Corporation
发明人： Steffen TRAUTMANN , Alexander KAHL , Thomas NIEDERFRINIGER , Harald ENZINGER
IPC分类号： H04B1/04 , H04B1/62 , H04L5/14
摘要： 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.

5. 发明授权

US11190230B1 Wide bandwidth digital pre-distortion (DPD) in a remote unit(s) for a wireless communications system (WCS) 有权
公开(公告)号：US11190230B1
公开(公告)日：2021-11-30
申请号：US16887814
申请日：2020-05-29
申请人： Corning Research & Development Corporation
发明人： Yury Abramov , Roi Yosy Ziv
IPC分类号： H04B1/62 , H04B1/50 , H04B1/04 , H04W88/08
摘要： 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.

6. 发明申请

US20210367624A1 DIGITAL RADIO FREQUENCY TRANSMITTER AND WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME 有权
公开(公告)号：US20210367624A1
公开(公告)日：2021-11-25
申请号：US17196463
申请日：2021-03-09
申请人： Samsung Electronics Co., Ltd.
发明人： Youngsea CHO , Jiseon PAEK , Wan KIM , Daechul JEONG
IPC分类号： H04B1/00 , H04B1/62 , H04B1/16
摘要： 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.

7. 发明授权

US10938351B2 Envelope tracking system 有权
公开(公告)号：US10938351B2
公开(公告)日：2021-03-02
申请号：US16354234
申请日：2019-03-15
申请人： Qorvo US, Inc.
发明人： Nadim Khlat
IPC分类号： H04B1/62 , H03F1/02 , H03F3/24 , H03F3/68 , H03F1/30 , H04L27/26 , H03F3/45
摘要： 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.

8. 发明申请

US20200351836A1 Multiple Access in Wireless Telecommunications System For High-Mobility Applications 审中-公开
公开(公告)号：US20200351836A1
公开(公告)日：2020-11-05
申请号：US16946966
申请日：2020-07-13
申请人： Cohere Technologies, Inc.
发明人： Shlomo Rakib , Ron Hadani
IPC分类号： H04W72/04 , H04B1/62 , H04B1/04 , H04L23/02 , H04L25/03 , H04L27/26 , H04L5/00 , H04J11/00 , H04L27/04 , H04L1/00
摘要： A wireless telecommunications system that mitigates infrasymbol interference due to Doppler-shift and multipath and enables multiple access in one radio channel. Embodiments of the present invention are particularly advantageous for wireless telecommunications systems that operate in high-mobility environments, including high-speed trains and airplanes.

9. 发明授权

US10716095B2 Multiple access in wireless telecommunications system for high-mobility applications 有权
公开(公告)号：US10716095B2
公开(公告)日：2020-07-14
申请号：US16153577
申请日：2018-10-05
申请人： Cohere Technologies, Inc.
发明人： Shlomo Rakib , Ron Hadani
IPC分类号： H04W56/00 , H04W72/04 , H04B1/62 , H04B1/04 , H04L23/02 , H04L25/03 , H04L27/26 , H04L5/00 , H04J11/00 , H04L27/04 , H04L1/00 , H04B15/00 , H04L27/06
摘要： A wireless telecommunications system that mitigates infrasymbol interference due to Doppler-shift and multipath and enables multiple access in one radio channel. Embodiments of the present invention are particularly advantageous for wireless telecommunications systems that operate in high-mobility environments, including high-speed trains and airplanes.

10. 发明授权

US10587293B2 Method for improving signal to noise ratio in an uplink transmission 有权
公开(公告)号：US10587293B2
公开(公告)日：2020-03-10
申请号：US15767356
申请日：2017-07-25
申请人： Karthik Muralidhar
发明人： Karthik Muralidhar
IPC分类号： H04B1/04 , H04B1/10 , H04B1/62 , H04J11/00 , H04B17/336 , H04B1/7107 , H04B7/0456 , H04W72/12
摘要： A method for improving signal to noise ratio in an uplink transmission. The method includes determining a plurality of combinations of “N” possible users to be selected among “X” users that are transmitting signals to a base station comprising “n” number of antennas, where n>=N, wherein selected “N” users transmit on a same sub-carrier; computing signal to noise ratio (SNR) of the signals received from each of the users among the determined combination of “N” possible users; and selecting at least one combination among the plurality of combinations of “N” possible users, such that, a combined signal to noise ratio of the selected combination is maximum among all combinations.

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