公开(公告)号：US20170373820A1

公开(公告)日：2017-12-28

申请号：US15700951

申请日：2017-09-11

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： BELAL HAMZEH ,  THOMAS H. WILLIAMS ,  DANIEL RICE ,  LUIS ALBERTO CAMPOS

IPC: H04L5/14 ,  H04L5/00

CPC classification number: H04L5/1469 ,  H04L5/0078 ,  H04L12/2885 ,  H04L12/2898 ,  H04N21/6118

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：US20210037569A1

公开(公告)日：2021-02-04

申请号：US16945466

申请日：2020-07-31

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： THOMAS SANDHOLM ,  BELAL HAMZEH ,  BERNARDO HUBERMAN

IPC: H04W74/08 ,  H04W28/02 ,  H04L12/863 ,  H04W24/08

Abstract: A novel method that dynamically changes the contention window of access points based on system load to improve performance in a dense Wi-Fi deployment is disclosed. A key feature is that no MAC protocol changes, nor client side modifications are needed to deploy the solution. Setting an optimal contention window can lead to throughput and latency improvements up to 155%, and 50%, respectively. Furthermore, an online learning method that efficiently finds the optimal contention window with minimal training data, and yields an average improvement in throughput of 53-55% during congested periods for a real traffic-volume workload replay in a Wi-Fi test-bed is demonstrated.

公开(公告)号：US20190356532A1

公开(公告)日：2019-11-21

申请号：US16416016

申请日：2019-05-17

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： BELAL HAMZEH ,  BERNARDO HUBERMAN ,  NICOLAS JOEL METTS ,  AARTI MUNJAL

IPC: H04L12/24 ,  H04L29/08 ,  G06N20/00

Abstract: Methods, systems, and devices for network maintenance are described. A controller may receive an indication that the performance of a network device has decreased. The indication may include case identification data associated with the network device. The controller may request proactive network maintenance (PNM) data associated with the network device based on receiving the case identification data. The controller may transmit the PNM data to a machine learning (ML) engine. The ML engine may transmit, to the controller, an indication of a predetermined operation predicted to improve the performance of the network device. The controller may transmit the predetermined operation to a client device based on receiving the indication of the predetermined operation. The ML engine may receive feedback indicating whether an execution of the predetermined operation improved the performance of the network device. The ML engine may a training data set based on the feedback.

公开(公告)号：US20180337748A1

公开(公告)日：2018-11-22

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 ,  H04W72/08 ,  H04W72/04 ,  H04L27/00 ,  H04L5/00 ,  H04J3/16 ,  H04J3/06 ,  H04W76/10 ,  H04W84/12

CPC classification number: H04L1/007 ,  H03M13/353 ,  H04J3/0647 ,  H04J3/1694 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/0092 ,  H04L27/0006 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/082 ,  H04W76/10 ,  H04W84/12

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.