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公开(公告)号：US11888525B2
公开(公告)日：2024-01-30
申请号：US17170403
申请日：2021-02-08
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Zhensheng Jia , Luis Alberto Campos , Jing Wang , Mu Xu , Haipeng Zhang , Curtis Dean Knittle
CPC classification number: H04B10/40 , H04B10/25891 , H04B10/50 , H04B10/61 , H04L5/14
Abstract: A full duplex communication network includes an optical transmitter end having a first coherent optics transceiver, an optical receiver end having a second coherent optics transceiver, and an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver. The first coherent optics transceiver is configured to simultaneously transmit a downstream optical signal and receive an upstream optical signal. The second coherent optics transceiver is configured to simultaneously receive the downstream optical signal from the first coherent optics transceiver and transmit the upstream optical signal first coherent optics transceiver. At least one of the downstream optical signal and the upstream optical signal includes at least one coherent optical carrier and at least one non-coherent optical carrier.
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公开(公告)号：US11722219B2
公开(公告)日：2023-08-08
申请号：US17883290
申请日：2022-08-08
Applicant: Cable Television Laboratories, Inc.
Inventor： Luis Alberto Campos , Zhensheng Jia , Jing Wang
IPC: H04B10/2575 , H04B10/532 , H04B10/61 , H04J14/02 , H04B10/079 , H04B10/564
CPC classification number: H04B10/25756 , H04B10/07953 , H04B10/25755 , H04B10/532 , H04B10/564 , H04B10/612 , H04B10/613 , H04J14/028
Abstract: An optical access network includes an optical hub having at least one processor, and a plurality of optical fiber strands. Each optical fiber strand has a first strand end connected to the optical hub. The network further includes a plurality of nodes connected to at least one segment of a first fiber strand of the plurality of optical fiber strands. Each node is sequentially disposed at respective locations along the first fiber strand at different differences from the optical hub, respectively. The network further includes a plurality of end-points. Each end-point includes a receiver. Each respective receiver (i) has a different optical signal-to-noise ratio (OSNR) from the other receivers, (ii) is operably coupled with at least one node of the plurality of nodes, and (iii) is configured to receive the same optical wavelength signal from the first fiber strand as received by the other receivers.
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公开(公告)号：US11695599B1
公开(公告)日：2023-07-04
申请号：US17222122
申请日：2021-04-05
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia
IPC: H04L25/49 , H04W88/08 , H04B10/2575 , H03M3/00 , H04B1/00
CPC classification number: H04L25/4906 , H03M3/424 , H03M3/43 , H03M3/496 , H04B1/0007 , H04W88/085 , H04B10/2575
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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公开(公告)号：US11489594B2
公开(公告)日：2022-11-01
申请号：US16983786
申请日：2020-08-03
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Jing Wang , Mu Xu , Haipeng Zhang , Curtis Dean Knittle
Abstract: A full duplex communication network includes an optical transmitter end having a first coherent optics transceiver, an optical receiver end having a second coherent optics transceiver, and an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver. The first coherent optics transceiver is configured to (i) transmit a downstream optical signal at a first wavelength, and (ii) simultaneously receive an upstream optical signal at a second wavelength. The second coherent optics transceiver is configured to (i) receive the downstream optical signal, and (ii) simultaneously transmit the upstream optical signal. The first wavelength has a first center frequency separated from a second center frequency of the second wavelength.
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公开(公告)号：US11469822B1
公开(公告)日：2022-10-11
申请号：US17113434
申请日：2020-12-07
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Jing Wang , Zhensheng Jia , Luis Alberto Campos
Abstract: A digital mobile fronthaul (MFH) network includes a baseband processing unit (BBU) having a digitization interface configured to digitize, using delta-sigma digitization, at least one wireless service for at least one radio access technology. The network further includes a transport medium in operable communication with the BBU. The transport medium is configured to transmit a delta-sigma digitized wireless service from the BBU. The network further includes a remote radio head (RRH) configured to operably receive the delta-sigma digitized wireless service from the BBU over the transport medium.
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Patent Agency Ranking
公开(公告)号：US20210050920A1
公开(公告)日：2021-02-18
申请号：US16983786
申请日：2020-08-03
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Jing Wang , Mu Xu , Haipeng Zhang , Curtis Dean Knittle
Abstract: A full duplex communication network includes an optical transmitter end having a first coherent optics transceiver, an optical receiver end having a second coherent optics transceiver, and an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver. The first coherent optics transceiver is configured to (i) transmit a downstream optical signal at a first wavelength, and (ii) simultaneously receive an upstream optical signal at a second wavelength. The second coherent optics transceiver is configured to (i) receive the downstream optical signal, and (ii) simultaneously transmit the upstream optical signal. The first wavelength has a first center frequency separated from a second center frequency of the second wavelength.
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公开(公告)号：US10892829B2
公开(公告)日：2021-01-12
申请号：US16198396
申请日：2018-11-21
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Jing Wang
Abstract: A communication network includes an optical hub having a first coherent optics transceiver, a fiber node having a second coherent optics transceiver, an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver, a first optical circulator disposed at the optical hub, and a second optical circulator disposed at the fiber node. The first coherent optics transceiver is configured to (i) transmit a downstream optical signal at a first wavelength, and (ii) receive an upstream optical signal at the first wavelength. The second coherent optics transceiver is configured to (i) receive the downstream optical signal from the first coherent optics transceiver at the first wavelength, and (ii) transmit the upstream optical signal at the first wavelength. The first and second optical circulators are configured to separate the downstream optical signal from the upstream optical signal.
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公开(公告)号：US20200295837A9
公开(公告)日：2020-09-17
申请号：US16711293
申请日：2019-12-11
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Junwen Zhang , Zhensheng Jia , Luis Alberto Campos , Haipeng Zhang , Mu Xu , Jing Wang , Curtis Dean Knittle , Chuang Zhou
Abstract: 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.
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公开(公告)号：US20200287758A1
公开(公告)日：2020-09-10
申请号：US16835168
申请日：2020-03-30
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia
IPC: H04L25/49 , H04B10/2575 , H04W88/08 , H03M3/00 , H04B1/04
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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公开(公告)号：US20200186163A1
公开(公告)日：2020-06-11
申请号：US16791925
申请日：2020-02-14
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Belal Hamzeh , Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle , Jing Wang
IPC: H03M3/00 , H04L12/28 , H04B10/58 , H04N21/61 , H04B10/2575
Abstract: A method for virtually performing delta-sigma digitization is provided. The method is performed on a series of digital samples output from a communication stack of a communication network. The method includes steps of obtaining a delta-sigma digitization sampling frequency for the output series of digital samples, calculating an oversampling ratio for the output series of digital samples, interpolating the output series of digital samples at a rate equivalent to the oversampling ratio, and quantizing the interpolated series of digital samples to plurality of discrete predetermined levels.
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