Patents by Inventor Dorin Gheorghe Viorel

Dorin Gheorghe Viorel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12035146
    Abstract: A cross-scheduling resource allocation method for NOMA-based DSS is provided for a first wireless technology carrier and a different second wireless technology carrier co-existing on a same network communication channel. The method includes providing a resource subframe the first carrier within the channel at a specified bandwidth and duration, synchronizing the second wireless carrier to the specified duration within the specified bandwidth, allocating first PRBs within a first portion of the specified bandwidth for the first technology user traffic and second PRBs within a second non-overlapping portion of the specified bandwidth for the second technology user traffic, programming a frequency gap between the first PRBs and the second PRBs, obtaining channel information regarding the target communication channel, and dynamically adjusting the programmed frequency gap based on the obtained channel information.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: July 9, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Joseph Padden, Ruoyu Sun
  • Patent number: 11937094
    Abstract: Systems and methods provide for use of spectrum emission masks to allow for two or more devices to coexist on a common communication bandwidth. The spectrum emission masks may include one, two, or three interior attenuation regions that, when implemented by a transmitting device, significantly reduce the transmission power in the interior attenuation regions. The interior attenuation regions may transmit to interior channels that separate one, two, or three outer channels of a plurality of channels spanning the common communication bandwidth.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 19, 2024
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Ruoyu Sun, Lili Hervieu
  • Patent number: 11818758
    Abstract: An assisted random-access procedure allows band sharing between New Radio Unlicensed (NR-U) and Wi-Fi to improve coexistence of NR-U and Wi-Fi in shared unlicensed bands (e.g., below 7 GHz). To connect to an NR-U network, NR-U User Equipment (UE) receives and decodes an NR-U preamble of an NR-U wireless transmission to determine NR-U channel occupancy time (COT). The NR-U UE detects Wi-Fi wireless transmissions and decodes a Wi-Fi preamble to determine Wi-Fi COT. A random access (RA) opportunity is acquired based upon the NR-U wireless transmission and the NR-U COT. When the RA opportunity is not during the Wi-Fi COT, a PRACh message is transmitted from the NR-U UE to a NR-U base station (gNB) to allow the NR-U UE to join the NR-U network. NR-U transmissions may include an NR-U common preamble that may be decoded by existing Wi-Fi devices to avoid collisions with NR-U wireless transmissions.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: November 14, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Balkan Kecicioglu
  • Patent number: 11812415
    Abstract: A method for allocating aggressive signal carriers in a target band of a wireless communication network is provided. The network includes at least one long term evolution (LTE) node and at least one non-LTE transmission source. The target band includes at least two adjacent pairs of contiguous radio frequency (RF) channels. The method includes steps of scanning each contiguous RF channel of the target band to measure a respective value of non-LTE RF energy therein, determining, from the measured non-LTE RF energy, that a first one of the contiguous RF channels is occupied by a non-LTE carrier, and allocating an LTE carrier to a second one of the contiguous RF channels, different than the first one of the contiguous RF channels, based on the determination.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: November 7, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Neeharika Allanki
  • Patent number: 11800384
    Abstract: A system or method for emulating wireless channels, including a multi-input, multi-output (MIMO) channel, for evaluation of a wireless system is provided. To emulate the wireless channel, a series of in-field measurements of the wireless signal may be obtained and used to configure one or more communication devices for the signal evaluation. A virtual circular antenna may be controlled to obtain a first set of measurements based on a first trigger signal and a second set of measurements based on a second trigger signal delayed from the first trigger signal. The second set of measurements of the wireless signal, in addition to the first set of measurements, may approximate or may be an equivalent of the MIMO channel. The obtained or derived characteristics of the in-field wireless signal may be used to emulate a channel in a laboratory setting to evaluate one or more aspects of a wireless communication system.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: October 24, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Rakesh Taori
  • Patent number: 11696146
    Abstract: A cross-scheduling resource allocation method for NOMA-based DSS is provided for a first wireless technology carrier and a different second wireless technology carrier co-existing on a same network communication channel. The method includes providing a resource subframe the first carrier within the channel at a specified bandwidth and duration, synchronizing the second wireless carrier to the specified duration within the specified bandwidth, allocating first PRBs within a first portion of the specified bandwidth for the first technology user traffic and second PRBs within a second non-overlapping portion of the specified bandwidth for the second technology user traffic, programming a frequency gap between the first PRBs and the second PRBs, obtaining channel information regarding the target communication channel, and dynamically adjusting the programmed frequency gap based on the obtained channel information.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: July 4, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Joseph Padden, Ruoyu Sun
  • Patent number: 11690101
    Abstract: A wireless communications system provides coordinated multi point transmission over a channel of a wireless transmission medium. The system includes a central controller having a processor and a memory, a first cell region having a first communications node disposed therein, and a plurality of neighboring cell regions disposed about the first cell region. Each of the plurality of neighboring cell regions includes a second communications node disposed therein. The system includes a plurality of user equipment devices disposed within an overlapping region of the first cell region and one of the neighboring cell regions. The central controller is configured to assign the first communications node to be an anchor transmission point of a coordinated set of transmission points. The anchor transmission point is configured to perform carrier sensing on the channel. The coordinated set of transmission points includes the first communications node and at least one second communications node.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: June 27, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Balkan Kecicioglu, Dorin Gheorghe Viorel
  • Patent number: 11589312
    Abstract: A method for detecting a channel occupancy time declared by an interfering device in a wireless communication system includes (a) receiving a first radio frequency (RF) transmission from a base station at a user equipment (UE) device, (b) detecting failure to receive a second RF transmission from the base station at the UE device, and (c) in response to detecting the failure to receive the second RF transmission from the base station, causing the UE device to operate in a sleep mode. Another method for detecting a channel occupancy time declared by an interfering device in a wireless communication system includes (a) receiving a first RF transmission from a base station at a UE device, (b) detecting, at the UE device, an interfering RF transmission, and (c) in response to detecting the interfering RF transmission, causing the UE device to operate in a sleep mode.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 21, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Balkan Kecicioglu
  • Patent number: 11569898
    Abstract: A method for establishing a wireless connection between a user equipment (UE) device and a base station in unlicensed radio frequency (RF) spectrum includes (a) receiving, at the UE device, a plurality of RF beams broadcasted by the base station, (b) identifying a selected RF beam of the plurality of RF beams having control information with a maximum received signal level, and (c) identifying a first channel occupancy time (COT1) of the base station from control information of the selected RF beam.
    Type: Grant
    Filed: September 5, 2021
    Date of Patent: January 31, 2023
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Dorin Gheorghe Viorel
  • Patent number: 11425575
    Abstract: Systems and methods provide for use of spectrum emission masks to allow for two or more devices to coexist on a common communication bandwidth. The spectrum emission masks may include one, two, or three interior attenuation regions that, when implemented by a transmitting device, significantly reduce the transmission power in the interior attenuation regions. The interior attenuation regions may transmit to interior channels that separate one, two, or three outer channels of a plurality of channels spanning the common communication bandwidth.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: August 23, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Ruoyu Sun, Lili Hervieu
  • Patent number: 11310773
    Abstract: A method for allocating aggressive signal carriers in a target band of a wireless communication network is provided. The network includes at least one long term evolution (LTE) node and at least one non-LTE transmission source. The target band includes at least two adjacent pairs of contiguous radio frequency (RF) channels. The method includes steps of scanning each contiguous RF channel of the target band to measure a respective value of non-LTE RF energy therein, determining, from the measured non-LTE RF energy, that a first one of the contiguous RF channels is occupied by a non-LTE carrier, and allocating an LTE carrier to a second one of the contiguous RF channels, different than the first one of the contiguous RF channels, based on the determination.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: April 19, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Neeharika Allanki
  • Patent number: 11297650
    Abstract: A method for detecting aggressive signal transmission signatures in a wireless communication network is provided. The network includes at least one cooperative device, an access point, and at least one non-cooperative device. The method includes steps of generating a matrix of at least 8 bits configured to register each instance of at least one of a clear-to-send frame and a request-to-send frame transmitted between the at least one cooperative device and the access point during a specified duration, calculating a cumulative distribution function based on the registered instances within the generated matrix for a probability of the presence of an aggressive transmission signal by the at least one non-cooperative device within a measurable vicinity of one or more of the cooperative device and the access point, and determining the presence of the aggressive transmission signal based on the calculated cumulative distribution function being greater than a predetermined threshold.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 5, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Belal Hamzeh, Josh Redmore, Carey Sonsino
  • Publication number: 20220060916
    Abstract: A system or method for emulating wireless channels, including a multi-input, multi-output (MIMO) channel, for evaluation of a wireless system is provided. To emulate the wireless channel, a series of in-field measurements of the wireless signal may be obtained and used to configure one or more communication devices for the signal evaluation. A virtual circular antenna may be controlled to obtain a first set of measurements based on a first trigger signal and a second set of measurements based on a second trigger signal delayed from the first trigger signal. The second set of measurements of the wireless signal, in addition to the first set of measurements, may approximate or may be an equivalent of the MIMO channel. The obtained or derived characteristics of the in-field wireless signal may be used to emulate a channel in a laboratory setting to evaluate one or more aspects of a wireless communication system.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 24, 2022
    Inventors: Dorin Gheorghe VIOREL, Rakesh TAORI
  • Patent number: 11115109
    Abstract: A method for establishing a wireless connection between a user equipment (UE) device and a base station in unlicensed radio frequency (RF) spectrum includes (a) receiving, at the UE device, a plurality of RF beams broadcasted by the base station, (b) identifying a selected RF beam of the plurality of RF beams having control information with a maximum received signal level, and (c) identifying a first channel occupancy time (COT1) of the base station from control information of the selected RF beam.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 7, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventor: Dorin Gheorghe Viorel
  • Patent number: 11109409
    Abstract: An assisted random-access procedure allows band sharing between New Radio Unlicensed (NR-U) and Wi-Fi to improve coexistence of NR-U and Wi-Fi in shared unlicensed bands (e.g., below 7 GHz). To connect to an NR-U network, NR-U User Equipment (UE) receives and decodes an NR-U preamble of an NR-U wireless transmission to determine NR-U channel occupancy time (COT). The NR-U UE detects Wi-Fi wireless transmissions and decodes a Wi-Fi preamble to determine Wi-Fi COT. A random access (RA) opportunity is acquired based upon the NR-U wireless transmission and the NR-U COT. When the RA opportunity is not during the Wi-Fi COT, a PRACh message is transmitted from the NR-U UE to a NR-U base station (gNB) to allow the NR-U UE to join the NR-U network. NR-U transmissions may include an NR-U common preamble that may be decoded by existing Wi-Fi devices to avoid collisions with NR-U wireless transmissions.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 31, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Dorin Gheorghe Viorel, Balkan Kecicioglu
  • Patent number: 10952252
    Abstract: A wireless communications system provides coordinated multi point transmission over a channel of a wireless transmission medium. The system includes a central controller having a processor and a memory, a first cell region having a first communications node disposed therein, and a plurality of neighboring cell regions disposed about the first cell region. Each of the plurality of neighboring cell regions includes a second communications node disposed therein. The system includes a plurality of user equipment devices disposed within an overlapping region of the first cell region and one of the neighboring cell regions. The central controller is configured to assign the first communications node to be an anchor transmission point of a coordinated set of transmission points. The anchor transmission point is configured to perform carrier sensing on the channel. The coordinated set of transmission points includes the first communications node and at least one second communications node.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: March 16, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Balkan Kecicioglu, Dorin Gheorghe Viorel
  • Publication number: 20200281020
    Abstract: A method for detecting aggressive signal transmission signatures in a wireless communication network is provided. The network includes at least one cooperative device, an access point, and at least one non-cooperative device. The method includes steps of generating a matrix of at least 8 bits configured to register each instance of at least one of a clear-to-send frame and a request-to-send frame transmitted between the at least one cooperative device and the access point during a specified duration, calculating a cumulative distribution function based on the registered instances within the generated matrix for a probability of the presence of an aggressive transmission signal by the at least one non-cooperative device within a measurable vicinity of one or more of the cooperative device and the access point, and determining the presence of the aggressive transmission signal based on the calculated cumulative distribution function being greater than a predetermined threshold.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Belal Hamzeh, Josh Redmore, Carey Sonsino
  • Publication number: 20200163022
    Abstract: A method for detecting a channel occupancy time declared by an interfering device in a wireless communication system includes (a) receiving a first radio frequency (RF) transmission from a base station at a user equipment (UE) device, (b) detecting failure to receive a second RF transmission from the base station at the UE device, and (c) in response to detecting the failure to receive the second RF transmission from the base station, causing the UE device to operate in a sleep mode. Another method for detecting a channel occupancy time declared by an interfering device in a wireless communication system includes (a) receiving a first RF transmission from a base station at a UE device, (b) detecting, at the UE device, an interfering RF transmission, and (c) in response to detecting the interfering RF transmission, causing the UE device to operate in a sleep mode.
    Type: Application
    Filed: March 25, 2019
    Publication date: May 21, 2020
    Inventors: Dorin Gheorghe Viorel, Balkan Kecicioglu
  • Patent number: 10660132
    Abstract: A method for detecting aggressive signal transmission signatures in a wireless communication network is provided. The network includes at least one cooperative device, an access point, and at least one non-cooperative device. The method includes steps of generating a matrix of at least 8 bits configured to register each instance of at least one of a clear-to-send frame and a request-to-send frame transmitted between the at least one cooperative device and the access point during a specified duration, calculating a cumulative distribution function based on the registered instances within the generated matrix for a probability of the presence of an aggressive transmission signal by the at least one non-cooperative device within a measurable vicinity of one or more of the cooperative device and the access point, and determining the presence of the aggressive transmission signal based on the calculated cumulative distribution function being greater than a predetermined threshold.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: May 19, 2020
    Assignee: Cable Television Laboratories, Inc
    Inventors: Dorin Gheorghe Viorel, Jennifer Andreoli-Fang, Belal Hamzeh, Josh Redmore, Carey Sonsino
  • Publication number: 20200136714
    Abstract: A method for establishing a wireless connection between a user equipment (UE) device and a base station in unlicensed radio frequency (RF) spectrum includes (a) receiving, at the UE device, a plurality of RF beams broadcasted by the base station, (b) identifying a selected RF beam of the plurality of RF beams having control information with a maximum received signal level, and (c) identifying a first channel occupancy time (COT1) of the base station from control information of the selected RF beam.
    Type: Application
    Filed: March 25, 2019
    Publication date: April 30, 2020
    Inventor: Dorin Gheorghe Viorel