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公开(公告)号：US11686852B2
公开(公告)日：2023-06-27
申请号：US17461580
申请日：2021-08-30
发明人： Belal Hamzeh , Peter Paul Smyth , Lin Cheng , Jim O'Connor , Eric Winkelman , Thomas H. Williams , Steve Arendt
CPC分类号： G01S19/21 , H04B7/18517 , H04B7/18519 , H04J11/0023 , H04J11/0066 , H04J11/0073 , H04J11/0076 , H04W16/14 , H04B7/0617
摘要： A communication system, includes a satellite receiver in operable communication with a central server, a cellular node configured to operate within a proximity of the satellite receiver, and at least one mobile communication device configured to communicate (i) with the cellular node, (ii) within the proximity of the satellite receiver, and (iii) using a transmission signal capable of causing interference to the satellite receiver. The satellite receiver is configured to detect a repeating portion of the transmission signal and determine a potential for interference from the at least one mobile communication device based on the detected repeating portion.
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公开(公告)号：US11316715B1
公开(公告)日：2022-04-26
申请号：US17382139
申请日：2021-07-21
IPC分类号： H04L25/02
摘要： A method for automatically identifying an impairment of a communication medium includes (1) obtaining a spectrum response of communication signals traveling through the communication medium, (2) converting the spectrum response from a frequency domain to a time domain, to generate an impulse response, and (3) identifying the impairment of the communication medium at least partially based on one or more characteristics of the impulse response.
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公开(公告)号：US20210399936A1
公开(公告)日：2021-12-23
申请号：US17409522
申请日：2021-08-23
IPC分类号： H04L27/26 , H04B1/7103 , H04L27/00 , H04L27/34
摘要： A method of modulating a series of input digital symbols of a first modulation scheme is provided. The method is implemented by a transmitter and includes receiving a sequential series of samples of the digital symbols in a first domain of the first modulation scheme. The first domain is one of the time domain and the frequency domain. The method further includes determining a dual of the first modulation scheme. The dual has a second modulation scheme in a second domain that is different from the first domain the second domain is the other of the time domain and the frequency domain. The method further includes applying a 90 degree rotational operation to the second modulation scheme to generate a rotational modulation format, modulating the series of digital symbols with the generated rotational modulation format, and outputting the modulated series of digital symbols to a receiver.
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公开(公告)号：US10951314B2
公开(公告)日：2021-03-16
申请号：US16729960
申请日：2019-12-30
发明人： Lin Cheng , Luis Alberto Campos , Jing Wang , Zhensheng Jia
摘要： A resource allocation method is provided for a non-orthogonal multiple access distribution of access network users communicatively coupled to a single transport medium. The method includes steps of allocating a first frequency and time domain resource to a first user and a second frequency and time domain resource to a second user of the access network users, obtaining channel information regarding a particular communication channel of the access network for which resources are allocated, grouping the first user with the second user based on an overlap of the first frequency and time domain resource with the second frequency and time domain resource, and assigning the first user to a different power allocation resource than the second user within the frequency and time domain overlap.
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公开(公告)号：US20200252124A1
公开(公告)日：2020-08-06
申请号：US16851620
申请日：2020-04-17
发明人： Peter Paul Smyth , Lin Cheng , Jim O'Connor , Eric Winkelman , Thomas H. Williams , Belal Hamzeh , Steve Arendt
IPC分类号： H04B7/185 , H04W52/24 , H04W16/14 , H04W16/20 , H04B7/0413 , H04B17/391
摘要： A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.
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公开(公告)号：US10680703B2
公开(公告)日：2020-06-09
申请号：US16264072
申请日：2019-01-31
发明人： Peter Paul Smyth , Lin Cheng , Jim O'Connor , Eric Winkelman , Thomas H. Williams , Belal Hamzeh , Steve Arendt
IPC分类号： H04B7/185 , H04B7/0413 , H04B7/06 , H04W16/20 , H04B17/391 , H04W16/14 , H04W52/24
摘要： A communication system includes an earth station configured to receive a downlink transmission from a satellite and transmit an uplink transmission to the satellite. The communication system further includes a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point. The server is configured to implement a measurement-based protection scheme with respect to at least one of the downlink transmission and the uplink transmission.
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7.发明申请公开(公告)号：US20190036598A1
公开(公告)日：2019-01-31
申请号：US16142407
申请日：2018-09-26
发明人： Peter Paul Smyth , Jim O'Connor , Lin Cheng , Eric Winkelman
IPC分类号： H04B7/185 , H04W72/04 , H04B17/318 , H04B17/345
CPC分类号： H04B7/18519 , H04B17/318 , H04B17/345 , H04W16/14 , H04W52/242 , H04W72/0453
摘要： A satellite communication system is provided. The satellite communication system includes an earth station, a server in operable communication with the earth station, a beacon detector in operable communication with the server, an access point configured to operate within a proximity of the earth station, and a beacon transmitter disposed within close proximity to the access point. The beacon transmitter is configured to transmit a beacon signal to one or more of the server and the beacon detector. The beacon signal uniquely identifies the access point.
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公开(公告)号：US20240085571A1
公开(公告)日：2024-03-14
申请号：US18214347
申请日：2023-06-26
发明人： Belal Hamzeh , Peter Paul Smyth , Lin Cheng , Jim O'Connor , Eric Winkelman , Thomas H. Williams , Steve Arendt
CPC分类号： G01S19/21 , H04B7/18517 , H04B7/18519 , H04J11/0023 , H04J11/0066 , H04J11/0073 , H04J11/0076 , H04W16/14 , H04B7/0617
摘要： A communication system, includes a satellite receiver in operable communication with a central server, a cellular node configured to operate within a proximity of the satellite receiver, and at least one mobile communication device configured to communicate (i) with the cellular node, (ii) within the proximity of the satellite receiver, and (iii) using a transmission signal capable of causing interference to the satellite receiver. The satellite receiver is configured to detect a repeating portion of the transmission signal and determine a potential for interference from the at least one mobile communication device based on the detected repeating portion.
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公开(公告)号：US11564020B1
公开(公告)日：2023-01-24
申请号：US17336110
申请日：2021-06-01
发明人： Mu Xu , Luis Alberto Campos , Zhensheng Jia , Lin Cheng
摘要： A radio frequency (RF) beam transmission component having optical inputs and electrical outputs may include a wavelength selective switch (WSS) that has a plurality of optical WSS outputs. Each optical WSS output may be configured to transmit one or more wavelengths of the incoming optical signals. The RF beam transmission component may include a plurality of photodetectors (PD), each photodetector having an optical PD input coupled to one or more of said plurality of optical WSS outputs and a corresponding electrical output of a plurality of PD electrical outputs. The RF beam transmission component may further include a lens that has a plurality of electrical inputs and each electrical input may be electrically coupled to at least one of the plurality of electrical PD outputs. The lens may further have a plurality of electrical lens output ports.
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公开(公告)号：US11533105B1
公开(公告)日：2022-12-20
申请号：US17336004
申请日：2021-06-01
IPC分类号： H04B10/07 , H04B10/071 , H04B3/48 , H04B10/077 , G01R31/08
摘要： A method is provided for calibrating a terminal device connected to a transmission line containing an impairment. The method includes steps of obtaining a sequence of frequency domain samples for a digital signal transmitted to the terminal device, determining a reflection coefficient from the obtained frequency domain sequence and a reflection signal arising from the impairment, converting the sequence of frequency domain samples and the frequency domain reflection signal into the time domain to generate a complex time domain sample sequence having a real I time component and an imaginary Q time component, correcting the time domain sample sequence into a corrected time sequence having a phase value of the Q component corresponding to a phase value of the I component, calculating a correcting spin coefficient from the corrected time sequence, and calibrating the terminal device with the correcting spin coefficient to mitigate a rotation of the reflection coefficient.
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