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公开(公告)号：US20170126258A1
公开(公告)日：2017-05-04
申请号：US15269805
申请日：2016-09-19
Applicant: Apple Inc.
Inventor： Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Wassim El-Hassan , Srinivasa Yasasvy Sateesh Bhamidipati , Hailong Yang
IPC: H04B1/04
CPC classification number: H04B1/04 , H04B1/0475 , H04B2001/0425 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/40
Abstract: An electronic device may include wireless communications circuitry that has first and second digital predistortion circuits. The first predistortion circuit receives a first signal at a first frequency while the second predistortion circuit receives a second signal at a second frequency. The first circuit may perform predistortion operations on the first signal using non-unity predistortion coefficients to generate a predistorted signal. The second circuit may apply unity predistortion coefficients to the second signal to generate an undistorted signal. An adder may combine the predistorted and undistorted signals to generate a combined signal that is amplified by amplifier circuitry. An antenna may transmit the amplified signal. By over-distorting the first signal with the first predistortion circuit while the second predistortion circuit does not distort the second signal, the circuitry may mitigate non-linearity in the amplifier while allowing for carrier aggregation operations to be performed with minimal power consumption.
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公开(公告)号：US20220407573A1
公开(公告)日：2022-12-22
申请号：US17351974
申请日：2021-06-18
Applicant: Apple Inc.
Inventor： Weiping Dou , Anthony Wang , Digvijay Arjunrao Jadhav , Eric Conor Merkley , Hailong Yang , Indranil S. Sen , Madhusudan Chaudhary , Pengkai Zhao , Prashant H. Vashi , Rajesh Ambati , Wen Zhao
Abstract: A method includes receiving an indication to transmit a first set of signals using a first standard (e.g., Long Term Evolution) via a first set of antennas of a radio frequency device and a second set of signals using a second standard (e.g., New Radio) via a second set of antennas. The method also includes transmitting the first set of signals via the first set of antennas using a first power based on positions of the first set and second set of antennas, exposure conditions of the first set and the second set of signals on a user, and/or priorities of the first and the second set of signals. Moreover, the method includes transmitting the second set of signals via the second set of antennas using a second power based on the positions of the antennas, the exposure conditions of the signals on the user, and/or priorities of the signals.
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公开(公告)号：US09634695B1
公开(公告)日：2017-04-25
申请号：US15269805
申请日：2016-09-19
Applicant: Apple Inc.
Inventor： Gurusubrahmaniyan Subrahmaniyan Radhakrishnan , Wassim El-Hassan , Srinivasa Yasasvy Sateesh Bhamidipati , Hailong Yang
CPC classification number: H04B1/04 , H04B1/0475 , H04B2001/0425 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/40
Abstract: An electronic device may include wireless communications circuitry that has first and second digital predistortion circuits. The first predistortion circuit receives a first signal at a first frequency while the second predistortion circuit receives a second signal at a second frequency. The first circuit may perform predistortion operations on the first signal using non-unity predistortion coefficients to generate a predistorted signal. The second circuit may apply unity predistortion coefficients to the second signal to generate an undistorted signal. An adder may combine the predistorted and undistorted signals to generate a combined signal that is amplified by amplifier circuitry. An antenna may transmit the amplified signal. By over-distorting the first signal with the first predistortion circuit while the second predistortion circuit does not distort the second signal, the circuitry may mitigate non-linearity in the amplifier while allowing for carrier aggregation operations to be performed with minimal power consumption.
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公开(公告)号：US20250047340A1
公开(公告)日：2025-02-06
申请号：US18919572
申请日：2024-10-18
Applicant: Apple Inc.
Inventor： Weiping Dou , Anthony Wang , Digvijay Arjunrao Jadhav , Hailong Yang , Eric Conor Merkley , Indranil S. Sen , Madhusudan Chaudhary , Pengkai Zhao , Prashant H. Vashi , Rajesh Ambati , Wen Zhao
IPC: H04B7/06 , H01Q21/28 , H04W52/28 , H04W72/044 , H04W72/566
Abstract: A method includes receiving an indication to transmit a first set of signals using a first standard (e.g., Long Term Evolution) via a first set of antennas of a radio frequency device and a second set of signals using a second standard (e.g., New Radio) via a second set of antennas. The method also includes transmitting the first set of signals via the first set of antennas using a first power based on positions of the first set and second set of antennas, exposure conditions of the first set and the second set of signals on a user, and/or priorities of the first and the second set of signals. Moreover, the method includes transmitting the second set of signals via the second set of antennas using a second power based on the positions of the antennas, the exposure conditions of the signals on the user, and/or priorities of the signals.
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Patent Agency Ranking
公开(公告)号：US12143179B2
公开(公告)日：2024-11-12
申请号：US17351974
申请日：2021-06-18
Applicant: Apple Inc.
Inventor： Weiping Dou , Anthony Wang , Digvijay Arjunrao Jadhav , Eric Conor Merkley , Hailong Yang , Indranil S. Sen , Madhusudan Chaudhary , Pengkai Zhao , Prashant H. Vashi , Rajesh Ambati , Wen Zhao
IPC: H04B7/06 , H01Q21/28 , H04W52/28 , H04W72/04 , H04W72/044 , H04W72/12 , H04W72/566
Abstract: A method includes receiving an indication to transmit a first set of signals using a first standard (e.g., Long Term Evolution) via a first set of antennas of a radio frequency device and a second set of signals using a second standard (e.g., New Radio) via a second set of antennas. The method also includes transmitting the first set of signals via the first set of antennas using a first power based on positions of the first set and second set of antennas, exposure conditions of the first set and the second set of signals on a user, and/or priorities of the first and the second set of signals. Moreover, the method includes transmitting the second set of signals via the second set of antennas using a second power based on the positions of the antennas, the exposure conditions of the signals on the user, and/or priorities of the signals.
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公开(公告)号：US20240291532A1
公开(公告)日：2024-08-29
申请号：US18114851
申请日：2023-02-27
Applicant: Apple Inc.
Inventor： Hailong Yang , Lijie Zhang , Kexin Ma , Peng Xiao
CPC classification number: H04B7/0608 , H04W52/367
Abstract: One or more antennas of an electronic device are selected to transmit wireless signals based at least in part on maximum transmitted power limits (MTPLs) associated with the antennas. The one or more antennas may also be selected based on signal characteristic values, efficiency values, or both signal characteristic values and efficiency values.
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公开(公告)号：US20230074893A1
公开(公告)日：2023-03-09
申请号：US17839684
申请日：2022-06-14
Applicant: Apple Inc.
Inventor： Lijie Zhang , Hailong Yang , Kexin Ma , Alex Yee Kit Ho , Feng Zhang, SR. , Bing Zhao , Ying Zhang , Zhiwei Wang , Qiang Miao
Abstract: An electronic device receives an indication of a number of physical resource blocks and subcarrier spacing of at least a portion of a transmission channel and determines a dynamic transmission bandwidth, or receives an indication of a modulation coding scheme of the transmission channel and determines a modulation order. The electronic device transmits, using a transmitter, a signal over at least the portion of the transmission channel based on the dynamic transmission bandwidth being less than or equal to a threshold bandwidth, or the modulation order not corresponding to an additional power backoff, using a first power based on a maximum output power capacity of the electronic device and a maximum power reduction. Otherwise, the electronic device transmits the signal over at least the portion of the transmission channel at a second power based on the maximum output power capacity, the maximum power reduction and the additional power backoff.
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公开(公告)号：US11218181B2
公开(公告)日：2022-01-04
申请号：US16356986
申请日：2019-03-18
Applicant: Apple Inc.
Inventor： Dongchang Yu , Ming Hu , Hailong Yang , Tarakkumar G. Dhanani , Vijay Gadde , Xueting Liu , Dikshit Garg , Neeraj D. Vaghela , Mohit Narang , Sharad Garg
Abstract: A wireless communication device (UE) may conduct wireless communications using one or more antennas according to multiple radio access technologies (RAT) associated with corresponding operating frequency bands. The UE may perform adaptive antenna tuning, for example, application-based antenna tuning for increasing the operating efficiency of the UE, which may improve user experience. The UE may periodically identify one or more applications running on the UE, the respective RATs that support the (running) applications, and which of the corresponding frequency bands are used by the (running) applications. The UE may determine the tuner device settings for tuning the one or more antenna(s) based on the (running) applications or the type and/or priority of the (running) applications, which RATs support the running applications, which of the corresponding frequency bands are used by the (running) applications, and operating conditions associated with the frequency bands used by the (running) applications.
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9.发明申请公开(公告)号：US20190296789A1
公开(公告)日：2019-09-26
申请号：US16356986
申请日：2019-03-18
Applicant: Apple Inc.
Inventor： Dongchang Yu , Ming Hu , Hailong Yang , Tarakkumar G. Dhanani , Vijay Gadde , Xueting Liu , Dikshit Garg , Neeraj D. Vaghela , Mohit Narang , Sharad Garg
Abstract: A wireless communication device (UE) may conduct wireless communications using one or more antennas according to multiple radio access technologies (RAT) associated with corresponding operating frequency bands. The UE may perform adaptive antenna tuning, for example, application-based antenna tuning for increasing the operating efficiency of the UE, which may improve user experience. The UE may periodically identify one or more applications running on the UE, the respective RATs that support the (running) applications, and which of the corresponding frequency bands are used by the (running) applications. The UE may determine the tuner device settings for tuning the one or more antenna(s) based on the (running) applications or the type and/or priority of the (running) applications, which RATs support the running applications, which of the corresponding frequency bands are used by the (running) applications, and operating conditions associated with the frequency bands used by the (running) applications.
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