公开(公告)号：US10951314B2

公开(公告)日：2021-03-16

申请号：US16729960

申请日：2019-12-30

Applicant: CABLE TELEVISION LABORATORIES, INC

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

IPC: H04B10/00 ,  H04B10/2575 ,  H04B10/27 ,  H04J99/00 ,  H04W72/08 ,  H04W72/04 ,  H04J14/00

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：US20210050906A1

公开(公告)日：2021-02-18

申请号：US17086632

申请日：2020-11-02

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Luis Alberto Campos ,  Jennifer Andreoli-Fang ,  Joey Padden ,  Ian MacMillan

IPC: H04B7/12 ,  H04B7/0413 ,  H04L27/26 ,  H04B7/06

Abstract: A multiple-input multiple-output (MIMO) capable system is contemplated. The communication system may include a signal processor configured to separate an input stream into multiple signal paths to facilitate simultaneous transport through a communication medium. The capability to simultaneously transmit multiples signal paths may be beneficial in order to maximize throughput and/or minimize expense.

公开(公告)号：US10924214B2

公开(公告)日：2021-02-16

申请号：US16047335

申请日：2018-07-27

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Belal Hamzeh ,  Jennifer Andreoli-Fang ,  Alireza Babaei ,  Luis Alberto Campos

IPC: H04L1/00 ,  H03M13/35 ,  H04L27/00 ,  H04J3/06 ,  H04J3/16 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W84/12 ,  H04W76/10

Abstract: Systems and methods presented herein provide for altering communications of a LTE wireless communication system operating in an RF band with a conflicting WiFi system. In one embodiment, an LTE system includes a wireless base station operable to transmit downlink communications to a UE in the RF band and to receive uplink communications from the UE in the RF band. The LTE system also includes a processor operable to detect the uplink communications from the UE, to estimate a location of the UE based on the detected uplink communications, to determine a communication capability between the UE and the wireless base station based on the location of the UE, and to downgrade the downlink communications from the wireless base station to the UE based on the determined communication capability to avoid interference with the WiFi communication system.

公开(公告)号：US20210036802A1

公开(公告)日：2021-02-04

申请号：US16964536

申请日：2019-01-23

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Luis Alberto Campos ,  Jennifer Andreoli-Fang ,  Judson D. Cary ,  David Daniel Smith

IPC: H04L1/00 ,  H04L27/00 ,  H04L27/26

Abstract: A method for transmitting data through a multi-media communication network includes converting transmission entities into data symbols at a first communication device, transmitting the data symbols from the first communication device to a second communication device through at least two different types of communication media using only lower PHY layers of the at least two different types of communication media, and converting the data symbols into transmission entities at the second communication device. A network implementing a universal data link includes a first communication device configured to convert transmission entities into data symbols, a second communication device configured to convert the data symbols into transmission entities, at least a first communication medium and a second communication medium communicatively coupled between the first communication device and the second communication device, and a first physical-layer translator configured to translate data symbols without converting the data symbols into transmission entities. In order to reduce processing time and end-to-end latency, the physical-layer translator only performs demodulation and modulation operations, optionally also equalization.

公开(公告)号：US20210028915A1

公开(公告)日：2021-01-28

申请号：US17068474

申请日：2020-10-12

Applicant: CABLE TELEVISION LABORATORIES, INC.

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

IPC: H04L5/02 ,  H04H20/69 ,  H04L12/28 ,  H04H20/78 ,  H04N21/61

Abstract: An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.

公开(公告)号：US10893447B2

公开(公告)日：2021-01-12

申请号：US16252156

申请日：2019-01-18

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： John C. Bahr

IPC: H04W16/10 ,  H04W36/06 ,  H04W36/20 ,  H04W72/04 ,  H04W36/32 ,  H04W74/08 ,  G01S19/01 ,  H04W16/14

Abstract: A wireless transceiver includes an access point and a dynamic frequency selection unit. The access point is configured to wirelessly communicate with at least one Wi-Fi user equipment and monitor a target band for energy signatures of a radio frequency operation within the target band. The dynamic frequency selection unit is configured to (i) receive a detected energy signature from the target band, (ii) determine whether the detected energy signature corresponds to a known radio frequency operation within a vicinity of a location of the access point or represents a false positive, and (iii) control the operation of the access point within the target band based on the determination.

公开(公告)号：US10892882B2

公开(公告)日：2021-01-12

申请号：US16559403

申请日：2019-09-03

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Belal Hamzeh ,  Thomas H. Williams ,  Daniel Rice ,  Luis Alberto Campos

IPC: H04L5/14 ,  H04L5/00 ,  H04L12/28 ,  H04N21/61 ,  H04B3/487 ,  H04B3/32

Abstract: Systems and methods presented herein provide for improved duplex communications in an RF cable network comprising a plurality of CMs. In one embodiment, a system includes a CMTS operable to transmit downstream communications to the CMs and to process upstream communications from the CMs. The system also includes a duplex RF communication path between the CMTS and the CMs. The CMTS is further operable to transmit a control signal that directs a first of the CMs to transmit, to direct the remaining CMs to receive the transmission from the first CM, to direct the CMs to report received power levels of the transmission from the first CM, and to calculate RF isolations of the remaining CMs with respect to the first CM based on the reported power levels.

公开(公告)号：US20200374009A1

公开(公告)日：2020-11-26

申请号：US16989572

申请日：2020-08-10

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： JING WANG ,  LUIS ALBERTO CAMPOS ,  ZHENSHENG JIA ,  CURTIS DEAN KNITTLE

IPC: H04B10/2507 ,  H03M3/00

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：US20200336211A1

公开(公告)日：2020-10-22

申请号：US16855921

申请日：2020-04-22

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： HAIPENG ZHANG ,  JUNWEN ZHANG ,  MU XU ,  ZHENSHENG JIA ,  LUIS ALBERTO CAMPOS

IPC: H04B10/50 ,  G02F1/21 ,  G02B27/28 ,  H01S5/323 ,  H01S5/32 ,  H04B10/516 ,  H04B10/25

Abstract: An optical full-field transmitter for an optical communications network includes a primary laser source configured to provide a narrow spectral linewidth for a primary laser signal, and a first intensity modulator in communication with a first amplitude data source. The first intensity modulator is configured to output a first amplitude-modulated optical signal from the laser signal. The transmitter further includes a first phase modulator in communication with a first phase data source and the first amplitude-modulated optical signal. The first phase modulator is configured to output a first two-stage full-field optical signal. The primary laser source has a structure based on a III-V compound semiconductor.

公开(公告)号：US20200305077A1

公开(公告)日：2020-09-24

申请号：US16895139

申请日：2020-06-08

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： BERNARD McKIBBEN ,  MARK J. POLETTI ,  KYUNG MUN ,  DANIEL RICE

IPC: H04W52/02 ,  H04W24/02

Abstract: Systems and methods herein provide for the aggregation of a plurality of wireless base stations for access by a Mobile Central Office (MCO) communicating with user equipment (UEs) through a network. In one embodiment, a communication system includes a first plurality of wireless base stations, each being operable to communicate with UEs. The system also includes a base station aggregator operable to aggregate the wireless base stations into a virtual base station, and to interface with the MCO. The base station aggregator is further operable to process a request from the MCO for access to communications provided by the virtual base station, to grant the request, to intermediate on behalf of the MCO, and to exchange communications between the MCO and a UE subscribing to the MCO and operating within the coverage of the virtual base station.