公开(公告)号：US10931380B2

公开(公告)日：2021-02-23

申请号：US16595217

申请日：2019-10-07

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Luis Alberto Campos ,  Zhensheng Jia ,  Matthew D. Schmitt

IPC: H04B10/61 ,  H04L29/08 ,  H04L12/28 ,  H04B10/50 ,  H04B10/2575 ,  H04B10/27

Abstract: A communication network includes a coherent optics transmitter, a coherent optics receiver, an optical transport medium operably coupling the coherent optics transmitter to the coherent optics receiver, and a coherent optics interface. The coherent optics interface includes a lineside interface portion, a clientside interface portion, and a control interface portion.

公开(公告)号：US10917175B2

公开(公告)日：2021-02-09

申请号：US16676295

申请日：2019-11-06

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Jing Wang ,  Mu Xu ,  Haipeng Zhang ,  Curtis Dean Knittle

IPC: H04B10/40 ,  H04B10/61 ,  H04B10/50 ,  H04L5/14 ,  H04B10/25

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.

公开(公告)号：US10904647B2

公开(公告)日：2021-01-26

申请号：US16520176

申请日：2019-07-23

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Luis Alberto Campos ,  Zhensheng Jia ,  Carmela Stuart

IPC: H04B10/00 ,  H04Q11/00 ,  H04J14/02

Abstract: An optical access network includes an optical hub having at least one processor. The network further includes a plurality of optical distribution centers connected to the optical hub by a plurality of optical fiber segments, respectively, and a plurality of geographic fiber node serving areas. Each fiber node serving area of the plurality of fiber node serving areas includes at least one optical distribution center of the plurality of optical distribution centers. The network further includes a plurality of end points. Each end point of the plurality of end points is in operable communication with at least one optical distribution center. The network further includes a point-to-point network provisioning system configured to (i) evaluate each potential communication path over the plurality of optical fiber segments between a first end point and a second end point, and (ii) select an optimum fiber path based on predetermined path selection criteria.

公开(公告)号：US10608852B2

公开(公告)日：2020-03-31

申请号：US16288057

申请日：2019-02-27

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.

公开(公告)号：US10566994B2

公开(公告)日：2020-02-18

申请号：US16180591

申请日：2018-11-05

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Belal Hamzeh ,  Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle ,  Jing Wang

IPC: H03M3/00 ,  H04B10/58 ,  H04L12/28 ,  H04B10/54

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.

公开(公告)号：US20200044743A1

公开(公告)日：2020-02-06

申请号：US16600324

申请日：2019-10-11

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle

IPC: H04B10/50 ,  H04B10/532 ,  H04B10/63 ,  H04J14/04 ,  H04J14/06 ,  H04B10/64

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.

公开(公告)号：US20190393974A1

公开(公告)日：2019-12-26

申请号：US16453836

申请日：2019-06-26

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Mu Xu ,  Zhensheng Jia ,  Haipeng Zhang ,  Luis Alberto Campos

IPC: H04J14/02 ,  H04B10/2519 ,  H04J14/00 ,  H04B10/532 ,  H04B10/516 ,  H04B10/27

Abstract: An optical communication network includes a downstream optical transceiver. The downstream optical transceiver includes at least one coherent optical transmitter configured to transmit a downstream coherent dual-band optical signal having a left-side band portion, a right-side band portion, and a central optical carrier disposed within a guard band between the left-side band portion and the right-side band portion. The network further includes an optical transport medium configured to carry the downstream coherent dual-band optical signal from the downstream optical transceiver. The network further includes at least one modem device operably coupled to the optical transport medium and configured to receive the downstream coherent dual-band optical signal from the optical transport medium. The at least one modem device includes a downstream coherent optical receiver, and a first slave laser injection locked to a frequency of the central optical carrier.

公开(公告)号：US20190372670A9

公开(公告)日：2019-12-05

申请号：US16180912

申请日：2018-11-05

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Lin Cheng ,  Luis Alberto Campos ,  Jing Wang ,  Zhensheng Jia

IPC: H04B10/2575 ,  H04J99/00 ,  H04B10/27

Abstract: 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.

公开(公告)号：US20190356388A1

公开(公告)日：2019-11-21

申请号：US16413506

申请日：2019-05-15

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Luis Alberto Campos ,  Zhensheng Jia

IPC: H04B10/25 ,  H04L5/14 ,  H04J14/06 ,  H04B10/2507 ,  H04B10/40

Abstract: A full duplex communication network includes a first coherent optics transceiver having (i) a first receiver, and (ii) a first transmitter configured to transmit a first dual polarized signal. The network further includes a second coherent optics transceiver having (i) a second receiver configured to receive the first dual polarized signal, and (ii) a second transmitter configured to transmit a second dual polarized signal. The network further includes an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver, and a first compensation module configured to filter (i) crosstalk between orthogonal components of the first dual polarized signal, and (ii) reflections between the first dual polarized signal and the second dual polarized signal.

公开(公告)号：US20190069055A1

公开(公告)日：2019-02-28

申请号：US16116300

申请日：2018-08-29

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Luis Alberto Campos ,  Zhensheng Jia ,  Matthew Schmitt ,  Curtis Dean Knittle

IPC: H04Q11/00 ,  H04B10/50 ,  H04B10/61 ,  H04J14/02

Abstract: An optical network communication system utilizes a passive optical network (PON) and includes an optical line terminal (OLT) having a downstream transmitter and an upstream receiver, and an optical network unit (ONU) having a downstream receiver and an upstream transmitter. The downstream transmitter is configured to provide a coherent downlink transmission, and the downstream receiver is configured to obtain one or more downstream parameters from the coherent downlink transmission. The system further includes a long fiber configured to carry the coherent downlink transmission between the OLT and the ONU. The ONU is configured to communicate to the OLT a first upstream ranging request message, the OLT is configured to communicate to the ONU a first downstream acknowledgement in response to the upstream first ranging request message, and the ONU is configured to communicate to the OLT a second upstream ranging request message based on the first downstream acknowledgement.