公开(公告)号：US11818758B1

公开(公告)日：2023-11-14

申请号：US17461661

申请日：2021-08-30

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Dorin Gheorghe Viorel ,  Balkan Kecicioglu

IPC: H04W76/10 ,  H04W74/08 ,  H04W16/14 ,  H04W74/00 ,  H04W84/12 ,  H04W84/04

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W74/004 ,  H04W84/042 ,  H04W84/12

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.

公开(公告)号：US11800384B2

公开(公告)日：2023-10-24

申请号：US17389912

申请日：2021-07-30

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Dorin Gheorghe Viorel ,  Rakesh Taori

IPC: H04W24/00 ,  H04W24/06 ,  H04B7/0413

CPC classification number: H04W24/06 ,  H04B7/0413

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.

公开(公告)号：US20190261416A1

公开(公告)日：2019-08-22

申请号：US16282171

申请日：2019-02-21

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Dorin Gheorghe Viorel ,  Jennifer Andreoli-Fang ,  Belal Hamzeh ,  Josh Redmore ,  Carey Sonsino

IPC: H04W74/08 ,  H04W16/14 ,  H04W8/00 ,  H04B17/345

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.

公开(公告)号：US20170332353A1

公开(公告)日：2017-11-16

申请号：US15470272

申请日：2017-03-27

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Dorin Gheorghe Viorel ,  Jennifer Andreoli-Fang ,  Neeharika Allanki

IPC: H04W72/04 ,  H04W72/10 ,  H04W16/14

CPC classification number: H04W72/04 ,  H04W16/14 ,  H04W72/082 ,  H04W72/10

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.

公开(公告)号：US11812415B1

公开(公告)日：2023-11-07

申请号：US17723153

申请日：2022-04-18

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Dorin Gheorghe Viorel ,  Jennifer Andreoli-Fang ,  Neeharika Allanki

IPC: H04W72/04 ,  H04W16/14 ,  H04W72/56 ,  H04W72/541

CPC classification number: H04W72/04 ,  H04W16/14 ,  H04W72/541 ,  H04W72/56

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.

公开(公告)号：US10225863B2

公开(公告)日：2019-03-05

申请号：US15439814

申请日：2017-02-22

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Jennifer Andreoli-Fang ,  Dorin Gheorghe Viorel ,  Belal Hamzeh ,  Josh Redmore ,  Carey Sonsino

IPC: H04W74/08 ,  H04W8/00 ,  H04W16/14 ,  H04B17/345 ,  H04W84/04 ,  H04W84/12

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.

公开(公告)号：US20170245304A1

公开(公告)日：2017-08-24

申请号：US15439814

申请日：2017-02-22

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Jennifer Andreoli-Fang ,  Dorin Gheorghe Viorel ,  Belal Hamzeh ,  Josh Redmore ,  Carey Sonsino

IPC: H04W74/08 ,  H04W8/00 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04B17/345 ,  H04W8/005 ,  H04W16/14 ,  H04W84/042 ,  H04W84/12

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.

公开(公告)号：US11937094B1

公开(公告)日：2024-03-19

申请号：US17892863

申请日：2022-08-22

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Dorin Gheorghe Viorel ,  Ruoyu Sun ,  Lili Hervieu

IPC: H04W16/14 ,  H04W72/0453

CPC classification number: H04W16/14 ,  H04W72/0453

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.

公开(公告)号：US11425575B1

公开(公告)日：2022-08-23

申请号：US17133441

申请日：2020-12-23

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Dorin Gheorghe Viorel ,  Ruoyu Sun ,  Lili Hervieu

IPC: H04W16/14 ,  H04W72/04

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.

公开(公告)号：US20200163022A1

公开(公告)日：2020-05-21

申请号：US16363879

申请日：2019-03-25

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Dorin Gheorghe Viorel ,  Balkan Kecicioglu

IPC: H04W52/02 ,  H04W74/08 ,  H04W16/14 ,  H04W88/02

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.