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11. 发明授权

US11283522B2 System and method for powering re-generation and re-transmission of millimeter waves for building penetration 有权
公开(公告)号：US11283522B2
公开(公告)日：2022-03-22
申请号：US17028832
申请日：2020-09-22
申请人： NxGen Partners IP, LLC
发明人： Solyman Ashrafi
IPC分类号： H04B7/24 , H04B10/2575 , H04L27/36 , H04L25/03 , H04B10/516 , H04J14/00 , H04B10/54 , H04B10/532 , H04B10/2581 , H04L29/06 , H04L9/30 , H04L9/08 , H04B10/11 , H04L27/34 , H04B10/50 , H04W12/04 , H04L25/00
摘要： A system enabling signal penetration into a building comprising first circuitry, located on an exterior of the building, for transmitting and receiving signals at a first frequency that experience losses when penetrating into an interior of the building, converting the received signals at the first frequency into a first format that overcome losses caused by penetrating into the interior of the building over a wireless communications link and converting received signals in the first format into the signals in the first frequency. A first antenna associated with the first circuitry transmits the signals in the first format into the interior of the building via a wireless communications link and receives signals from the interior of the building in the first format via the wireless communications link. First power circuitry provides system power to each of the first circuitry and the first antenna responsive to a provided power signal. Second circuitry, located on the interior of the building and communicatively linked with the first circuitry via the wireless communications link, for receives and transmits the converted received signals in the first format that counteracts the losses caused by penetrating into the interior of the building from/to the first circuitry. A second antenna associated with the second circuitry transmits the signals in the first format to the exterior of the building via the wireless communications link and for receives signals from the exterior of the building in the first format via the wireless communications link. Second power circuitry provides system power to each of the second circuitry and the second antenna responsive to a generated power signal. First wireless power transmission circuitry located on the interior of the building generates a wireless power signal for transmission to the exterior of the building over a wireless power link responsive to the provided power signal. Second wireless power transmission circuitry located on the exterior of the building receives the wireless power signal over the wireless power link and generates the generated power signal responsive to the wireless power signal.

12. 发明申请

US20220085894A1 MODULATION FORMATS WITH FRACTIONAL SPECTRAL EFFICIENCY 有权
公开(公告)号：US20220085894A1
公开(公告)日：2022-03-17
申请号：US17018495
申请日：2020-09-11
申请人： Shahab OVEIS GHARAN , Michael Andrew REIMER , James St. Leger HARLEY
发明人： Shahab OVEIS GHARAN , Michael Andrew REIMER , James St. Leger HARLEY
IPC分类号： H04B10/61 , H04B10/516 , H04B10/532 , H04L27/34 , H04L27/36
摘要： A transmitter maps an N-bit sequence to a point selected from a four-dimensional (4D) constellation consisting of 2N points which form a subset of a Cartesian product of first and second two-dimensional (2D) constellations, the first constellation consisting of M1 points divided into first, second, and third points, and the second constellation consisting of M2 points divided into fourth, fifth, and sixth points, wherein M1, M2≥5, and wherein log2(M1×M2)>N. The subset includes any 4D point that is generated by combining any one of the M1 points and any one of the fourth points; includes any 4D point that is generated by combining any one of the first points and any one of M2 points; and excludes any 4D point that is generated by combining any third point and any sixth point. An optical signal representing the selected point is transmitted to a receiver.

13. 发明授权

US11277206B1 Modulation formats with fractional spectral efficiency 有权
$Modulation formats with fractional spectral efficiency$
公开(公告)号：US11277206B1
公开(公告)日：2022-03-15
申请号：US17018495
申请日：2020-09-11
申请人： Shahab Oveis Gharan , Michael Andrew Reimer , James St. Leger Harley
发明人： Shahab Oveis Gharan , Michael Andrew Reimer , James St. Leger Harley
IPC分类号： H04B10/00 , H04B10/61 , H04B10/516 , H04L27/36 , H04L27/34 , H04B10/532
摘要： A transmitter maps an N-bit sequence to a point selected from a four-dimensional (4D) constellation consisting of 2N points which form a subset of a Cartesian product of first and second two-dimensional (2D) constellations, the first constellation consisting of M1 points divided into first, second, and third points, and the second constellation consisting of M2 points divided into fourth, fifth, and sixth points, wherein M1, M2≥5, and wherein log2(M1×M2)>N. The subset includes any 4D point that is generated by combining any one of the M1 points and any one of the fourth points; includes any 4D point that is generated by combining any one of the first points and any one of M2 points; and excludes any 4D point that is generated by combining any third point and any sixth point. An optical signal representing the selected point is transmitted to a receiver.

14. 发明授权

US11223424B2 Fibre-based communication 有权
公开(公告)号：US11223424B2
公开(公告)日：2022-01-11
申请号：US17267315
申请日：2018-08-10
申请人： Nokia Technologies Oy
发明人： David Bitauld
IPC分类号： H04B10/532 , H04B10/079 , H04B10/548 , H04B10/85
摘要： In accordance with an example embodiment of the present invention, there is provided an apparatus (160) comprising two inputs configured to receive two optical signals from two fibres (155, 157) from two respective optical transmitters, a beam splitter configured to convert the optical signals into dual rail form, the apparatus being configured to cause the optical signals to interfere with each other, a plurality of single photon detectors configured to measure the dual rail form optical signals, and at least one processing core configured to obtain compensation adjustment information concerning the two fibres and to inform the optical transmitters of the compensation adjustment information.

15. 发明申请

US20210399807A1 METHODS AND APPARATUS SUPPORTING NON-PERSISTENT COMMUNICATIONS 有权
公开(公告)号：US20210399807A1
公开(公告)日：2021-12-23
申请号：US16908558
申请日：2020-06-22
申请人： Raytheon Company
发明人： Benjamin P. Dolgin , Andrew M. Kowalevicz , Gary M. Graceffo
IPC分类号： H04B10/532 , G02B6/27 , H04B10/50 , H04B10/572 , H04B10/61
摘要： An optical transmitter (and methods of transmitting and receiving) includes a delay and modulation circuit configured to receive at least one optical beam and a first data signal (persistent data) and generate at least two or more modulated optical beams having the first data encoded therein. One of the modulated optical beams is a time-delayed or time-shifted version of another one of the modulated optical beams, and both beams are directed toward a target. The amount or time delay between the first and second optical beams can be modulated according to a second data signal (non-persistent data) to encode the second data therein. An optical receiver is configured to detect the two modulated optical beams and recover the first data. Because changes in the amount or time delays between the first and second optical beams results in a positional change in the location of the combined centroid of the received beams at a detector of the receiver, the second data can be recovered by detecting the positional changes.

16. 发明授权

US11177889B2 Out-of-band communication channel for sub-carrier-based optical communication systems 有权
公开(公告)号：US11177889B2
公开(公告)日：2021-11-16
申请号：US16578179
申请日：2019-09-20
申请人： Infinera Corporation
发明人： Amir Jafari , Steven J. Hand , Mohamed Osman
IPC分类号： H04B10/00 , H04B10/61 , H04B10/40 , H04J14/02 , H04B10/54 , H04B10/548 , H04B10/50 , G02B6/293 , H04B10/532 , H01S3/067
摘要： Techniques are described for implementing an out-of-band communication channel used to exchange control channel information in sub-carrier-based optical communication systems. In an example implementation, an optical communication system includes a primary transceiver, a component, and secondary transceivers. The primary transceiver is operable to supply first optical subcarriers to an optical communication path, the first optical subcarriers being amplitude modulated at a first frequency to carry first control information and amplitude modulated at a second frequency to carry second control information. The component is operable to be coupled to the optical communication path and includes circuitry operable to detect the first control information. The secondary transceivers are coupled to a terminal end of the optical communication path. At least one of the secondary transceivers is operable to detect the second control information and block the first control information.

17. 发明申请

US20210344426A1 FIBRE-BASED COMMUNICATION 有权
公开(公告)号：US20210344426A1
公开(公告)日：2021-11-04
申请号：US17267315
申请日：2018-08-10
申请人： Nokia Technologies Oy
发明人： David Bitauld
IPC分类号： H04B10/532 , H04B10/85 , H04B10/548 , H04B10/079
摘要： In accordance with an example embodiment of the present invention, there is provided an apparatus (160) comprising two inputs configured to receive two optical signals from two fibres (155, 157) from two respective optical transmitters, a beam splitter configured to convert the optical signals into dual rail form, the apparatus being configured to cause the optical signals to interfere with each other, a plurality of single photon detectors configured to measure the dual rail form optical signals, and at least one processing core configured to obtain compensation adjustment information concerning the two fibres and to inform the optical transmitters of the compensation adjustment information.

18. 发明申请

US20210336703A1 FIBER COMMUNICATION SYSTEMS AND METHODS 有权
公开(公告)号：US20210336703A1
公开(公告)日：2021-10-28
申请号：US17330203
申请日：2021-05-25
申请人： CABLE TELEVISION LABORATORIES, INC
发明人： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle
IPC分类号： H04B10/50 , H04B10/64 , H04B10/532 , H04B10/63 , H04J14/04 , H04J14/06
摘要： An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

19. 发明授权

US11095374B2 Out-of-band communication channel for sub-carrier-based optical communication systems 有权
公开(公告)号：US11095374B2
公开(公告)日：2021-08-17
申请号：US16578155
申请日：2019-09-20
申请人： Infinera Corporation
发明人： Amir Jafari , Steven J. Hand , Mohamed Osman
IPC分类号： H04B10/00 , H04B10/61 , H04B10/40 , H04J14/02 , H04B10/54 , H04B10/548 , H04B10/50 , G02B6/293 , H04B10/532 , H01S3/067
摘要： Techniques are described for implementing an out-of-band communication channel used to exchange control channel information in sub-carrier-based optical communication systems. In an example implementation, an apparatus includes laser operable to supply an optical signal, a digital signal processor operable to supply digital signals, a digital to analog circuitry operable to provide analog signals based on the digital signals, and driver circuitry is coupled to the digital to analog circuitry and operable to supply at least one drive signal. The apparatus also includes a modulator operable to receive said at least one drive signal, modulate the optical signal based on said at least one drive signal to provide a plurality of optical subcarriers, amplitude modulate the plurality of optical subcarriers at a first frequency to carry first control information, and modulate the plurality of subcarriers at a second frequency to carry second control information.

20. 发明授权

US11050491B2 Radio access network using radio over fibre 有权
公开(公告)号：US11050491B2
公开(公告)日：2021-06-29
申请号：US16932975
申请日：2020-07-20
申请人： Fadhel M Ghannouchi
发明人： Fadhel M Ghannouchi , Mahmood R Noweir , Mohamed Helaoui
IPC分类号： H04B10/2575 , H04B10/112 , H04B10/61 , H04B10/50 , H04B10/532
摘要： A radio communication system comprising an optical carrier generator for generating at least a pair of frequency spaced optical carrier signals, a transceiver configured to modulate a first portion of the pair of spaced optical carrier signals with downlink (DL) information to generate a modulated first optical signal, combine an unmodulated second optical signal formed of a remaining unmodulated second portion of the pair of spaced optical carrier signals with the modulated first optical signal to form a combined optical signal for transmission over an optical link, receive an optical uplink (UL) signal from said optical link, said optical UL signal comprising UL information modulated on said unmodulated second portion of the spaced optical carrier signals and down convert said received optical UL signal using a photodetector to output an electrical signal at a baseband frequency.

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