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公开(公告)号：US20240364371A1
公开(公告)日：2024-10-31
申请号：US18765727
申请日：2024-07-08
发明人： Lui Lam
CPC分类号： H04B1/0458 , H03F3/189 , H03G3/3042 , H03F1/36
摘要： Apparatus and methods for power detection with enhanced dynamic range are provided. In certain embodiments, a front end system includes a power amplifier that amplifies a radio frequency (RF) input signal to generate an RF output signal, a directional coupler that generates a sensed RF signal based on sensing the RF output signal from the power amplifier, and a power detector that processes the sensed RF signal to generate a detection signal indicating an output power of the power amplifier. Additionally, the power detector includes two or more detection paths providing different amounts of gain to the sensed RF signal from the directional coupler.
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公开(公告)号：US20240363999A1
公开(公告)日：2024-10-31
申请号：US18767315
申请日：2024-07-09
申请人： Apple Inc.
发明人： Berke Cetinoneri , Samia El Amrani , Qishan Yu
CPC分类号： H01Q1/38 , H01Q1/2283 , H04B1/0458 , H04B1/1607 , H04B17/101
摘要： Techniques for implementing and/or operating a radio frequency system, which includes a logic board that outputs an analog electrical signal indicative of data to be wirelessly transmitted from the radio frequency system and a remote head. The remote head includes an antenna that generates an electromagnetic wave to facilitate wirelessly transmitting the data, an antenna integrated circuit implemented using a first semiconductor manufacturing technique, in which the antenna integrated circuit amplifies the analog electrical signal to generate a first amplified analog electrical signal, and a remote front-end integrated circuit coupled between the antenna integrated circuit and the antenna. The remote front-end integrated circuit is implemented using a second semiconductor manufacturing technique different from the first semiconductor manufacturing technique and amplifies the first amplified analog electrical signal based on a target output power of the antenna to generate a second amplified analog electrical signal indicative of the data.
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公开(公告)号：US20240356571A1
公开(公告)日：2024-10-24
申请号：US18641131
申请日：2024-04-19
申请人： Nextivity, Inc.
CPC分类号： H04B1/04 , H04W52/367 , H04B2001/0416
摘要： A wireless wide area network (WWAN) radio includes a first WWAN transceiver/MODEM configured to communicate over one or more WWANs, and a standard power port communicably coupled to the first WWAN transceiver/MODEM. The standard power port is configured as the donor path for a coupled port including a standard power port antenna and configured to transmit at a first maximum power level. The WWAN radio further includes a high-power port communicably coupled to the standard power port and configured to have a fixed gain value high power amplifier and a high power antenna, the high power port configured to transmit at a second maximum power level being greater than the first maximum power level.
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4.发明授权公开(公告)号：US12126480B2
公开(公告)日：2024-10-22
申请号：US18171702
申请日：2023-02-21
发明人： Ardalan Alizadeh , Sivadeep Reddy Kalavakuru , Matthew Aaron Silverman , Mohsen Jamalabdollahi , Fred Jay Anderson
CPC分类号： H04L27/2623 , H04B1/0475 , H04B2001/0408
摘要： Crest Factor Reduction (CFR) parameters are determined for a dual band Power Amplifier (PA). A first band of the dual band PA is associated with a first Multi-Link Operation (MLO) link and a second band of the dual band PA is associated with a second MLO link. Determining the CFR parameters comprises determining based on a configuration of the first MLO link and the second MLO link. A first portion of the CFR parameters is provided to a first crest factor reduction block. First portion of the CFR parameters comprises a first clipping threshold associated with the first band and first filter coefficients associated with the first band. A second portion of the CFR parameters is provided to a second crest factor reduction block. The second portion of the CFR parameters comprises a second clipping threshold associated with the second band and second filter coefficients associated with the second band.
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公开(公告)号：US20240348281A1
公开(公告)日：2024-10-17
申请号：US18754595
申请日：2024-06-26
发明人： David Richard Pehlke , Anand Raghavan , Poul Olesen , Werner Schelmbauer , Thorsten Tracht , Wolfgang Thomann , Amir Israel Rubin , Assi Jakoby , Ofer Benjamin
IPC分类号： H04B1/525 , H04B1/04 , H04B1/10 , H04B1/12 , H04B7/0413
CPC分类号： H04B1/525 , H04B1/0475 , H04B1/1027 , H04B1/123 , H04B7/0413
摘要： RF communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, a method of interference cancellation includes filtering a radio frequency (RF) transmit signal to generate a first RF feedback signal using a first filter of a front end system, filtering the RF transmit signal to generate a second RF feedback signal using a second filter of the front end system, processing the first RF feedback signal to generate a first digital interference cancellation signal using a first feedback receiver, processing the second RF feedback signal to generate a second digital interference cancellation signal using a second feedback receiver, and compensating an RF receive signal for interference based on the first digital interference cancellation signal and the second digital interference cancellation signal using a receiver.
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6.发明公开公开(公告)号：US20240348272A1
公开(公告)日：2024-10-17
申请号：US18634249
申请日：2024-04-12
发明人： Hyunsang KANG , Yohan MOON , Hyoseok NA , Juho VAN , Yongjun AN
CPC分类号： H04B1/04 , H03F1/0233 , H03F3/245 , H03F2200/105 , H03F2200/451
摘要： According to an embodiment, an electronic device may comprise: memory storing instructions, a first power amplifier (PA) selectively connected to at least one of a plurality of modulators through a first switch, a first modulator including a second switch connected between the first switch and a first capacitor and a third switch connected to an output end of a first buck converter and being among the plurality of modulators configured to selectively operate in an envelope tracking (ET) mode or an average power tracking (APT) mode, a second modulator including a fourth switch connected between the first switch and a second capacitor and a fifth switch connected to an output end of a second buck converter and being among the plurality of modulators configured to selectively operate in the ET mode or the APT mode, and at least one processor, comprising processing circuitry, operatively connected to the first PA, the first modulator, and the second modulator. The instructions, when executed by at least one processor, individually and/or collectively, may cause the electronic device to: control the first modulator to operate in the APT mode based on identifying a first event associated with network communication, control the first switch to connect the first PA to the first modulator and the second modulator; control the second switch, the third switch, and the fourth switch to turn on; and control the fifth switch to turn off based on the first modulator operating in the APT mode.
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公开(公告)号：US20240348270A1
公开(公告)日：2024-10-17
申请号：US18622212
申请日：2024-03-29
发明人： Yousung LEE , Hyoseok NA , Yohan MOON , Seonjun KIM , Dongil YANG
CPC分类号： H04B1/0078 , H01Q3/24 , H04B1/04 , H04B2001/0408
摘要： An electronic device is provided. The electronic device includes a power amplifier (PA). The electronic device includes a first switch. The electronic device includes a second switch. The electronic device includes a plurality of antennas including a first antenna and a second antenna. The electronic device includes first circuitry coupled with the first antenna. The electronic device includes second circuitry capable of being coupled with the second antenna according to control of the second switch. The electronic device includes a radio frequency integrated circuit (RFIC). The electronic device includes at least one processor.
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公开(公告)号：US20240348208A1
公开(公告)日：2024-10-17
申请号：US18752959
申请日：2024-06-25
发明人： Shinya HITOMI , Satoshi TANAKA , Hirotsugu MORI
CPC分类号： H03F1/0222 , H03F3/245 , H04B1/0475 , H03F2200/102 , H03F2200/105 , H03F2200/451 , H04B2001/0425
摘要： A circuit includes a power amplifier configured to amplify a first signal in a first channel and a second signal in a second channel under a condition that the first signal and the second signal are simultaneously transmitted. An envelope tracking mode is applied to the power amplifier under a condition that a frequency gap between the first channel and the second channel is less than a first threshold width, and an average power tracking mode is applied to the power amplifier under a condition that the frequency gap is at least the first threshold width.
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公开(公告)号：US12119851B2
公开(公告)日：2024-10-15
申请号：US17861378
申请日：2022-07-11
发明人： Chien-Wen Chen , Yi-Ching Liao
CPC分类号： H04B1/0475 , H03G3/3036 , H03G2201/103 , H04B2001/0416
摘要： A feed forward echo cancellation device includes a first impedance circuit, a second impedance circuit, and an echo cancellation current generator circuit. The first impedance circuit is configured to output a first current to a node in response to a transmission current. The second impedance circuit is configured to output a second current to a node in response to the transmission current. The echo cancellation current generator circuit is configured to drain an echo cancellation current from the node. The node is connected to an input terminal of a programmable gain amplifier circuit via a gain control circuit, and the gain control circuit is configured to set a gain of the programmable gain amplifier circuit.
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10.发明公开公开(公告)号：US20240340099A1
公开(公告)日：2024-10-10
申请号：US18617740
申请日：2024-03-27
发明人： Arne FISCHER-BUHNER
IPC分类号： H04B17/391 , H04B1/04 , H04B17/13
CPC分类号： H04B17/3913 , H04B1/04 , H04B17/13 , H04B2001/0433
摘要： Various example embodiments relate to mitigation of a non-linearity in a data communication chain. A method may include: obtaining a data communication signal including a plurality of complex-valued input samples; capturing, from the plurality of complex-valued input samples, a current sample and a set of delayed samples; generating a phase-normalized input signal based on normalizing phase of the current sample and the set of delayed samples by a normalization term, wherein the normalization term is common for the current sample and the set of delayed samples; providing the phase-normalized input signal to a neural network configured to mitigate non-linearity of a data communication chain and to output a complex-valued output sample for each of the plurality of complex-valued input samples; and denormalizing phase of the complex-valued output sample by a denormalization term configured to restore phase of the data communication signal.
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