公开(公告)号：US12289622B2

公开(公告)日：2025-04-29

申请号：US18514863

申请日：2023-11-20

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Jacob Thomas

IPC: H04W24/02 ,  H04W28/02

Abstract: Techniques are described that detect areas with insufficient radio frequency (RF) coverage in a wireless network. A network management system (NMS) determines one or more service level expectation (SLE) metrics for each client device in a wireless network. The SLE metrics are aggregated to each access point (AP) in the wireless network, and each AP is assigned an AP score based on the aggregated SLE metrics. To identify potential coverage holes, the NMS groups APs having poor AP scores. If a root cause of the poor AP scores cannot be automatically resolved and if the poor AP scores persist for a predetermined period of time, the group of APs is determined to represent a true coverage hole. The NMS may generate a notification regarding recommended corrective actions to the customer and/or IT personnel.

公开(公告)号：US20230396485A1

公开(公告)日：2023-12-07

申请号：US18453872

申请日：2023-08-22

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Jisheng Wang

IPC: H04L41/0631

CPC classification number: H04L41/0631 ,  H04W88/08

Abstract: An example system includes access point (AP) devices configured to provide a wireless network at a site; and a network management system that stores network data received from the AP devices, the network data collected by the AP devices or client devices associated with the wireless network, and one or more processors configured to: receive a time series of SLE metrics based on the network data, determine, based on the time series, whether a network event has occurred, in response to a determination that a network event has occurred, determine a root cause for the network event, and in response to a determination that the root cause of the network event is associated with an AP device, determine a classification of the AP device, and determine a network management action for the AP device based on the network event and the classification of the AP device.

公开(公告)号：US20230091127A1

公开(公告)日：2023-03-23

申请号：US17931708

申请日：2022-09-13

Applicant: Juniper Networks, Inc.

Inventor： May Zar Lin ,  Wenfeng Wang ,  Jacob Thomas

IPC: H04W8/02 ,  H04B17/318

Abstract: Techniques are described by which a network management system (NMS) is configured to monitor and/or control a wireless network based on one or more roaming quality assessments. The NMS determines one or more roaming quality assessments for each roaming event and/or each network device in the wireless network. The roaming quality assessments include one or more of a roaming latency score, a signal quality score and/or a stability score. The roaming quality assessments may further include one or more suboptimal roam scores, sticky client scores, and/or interband scores. The NMS may further detect one or more ping-pong roaming events or excessive roaming events.

公开(公告)号：US20210099928A1

公开(公告)日：2021-04-01

申请号：US17109837

申请日：2020-12-02

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Jacob Thomas

IPC: H04W36/00 ,  H04W8/02

Abstract: Disclosed are methods and systems for improved wireless terminal roaming. In some embodiments, a management module determines access point density metrics for a plurality of centrally managed access points of a communications site. The density metric considers an average RSSI of access point signals received by other access points of the site, and each access point's contribution to the average. A determination of whether a particular wireless terminal roams is based on the density metrics of the source and target access point, as well as statistics relating to a current capacity of each of the access points. The disclosed embodiments may determine that a wireless terminal should transition/roam away from an access point even when that access point's RSSI value at the wireless terminal is above a threshold that would cause traditional methods to inhibit roaming.

公开(公告)号：US12082269B2

公开(公告)日：2024-09-03

申请号：US17936129

申请日：2022-09-28

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang

IPC: H04W4/029 ,  H04B17/318 ,  H04W16/14 ,  H04W24/10 ,  H04W64/00 ,  H04W74/08 ,  H04W88/06

CPC classification number: H04W74/0875 ,  H04B17/318 ,  H04W4/029 ,  H04W16/14 ,  H04W24/10 ,  H04W64/003 ,  H04W88/06

Abstract: The disclosed embodiments provide for management of a Wi-Fi network in the presence of a high priority receiver. When a high priory receiver is identified, a portion of the Wi-Fi network that could potentially interfere with the high priority receiver is identified and steps are taken to reduce the probability of such interference. For example, some wireless transmitters may be switched to alternate channels to reduce the probability of interference. By sharing information relating to high priority receivers across a plurality of wireless transmitters, the disclosed embodiments provide for more efficient operation in the presence of high priority receivers when compared to methods that independently detect a high priority receiver at each wireless transmitter.

公开(公告)号：US20240089753A1

公开(公告)日：2024-03-14

申请号：US18514863

申请日：2023-11-20

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Jacob Thomas

IPC: H04W24/02 ,  H04W28/02

CPC classification number: H04W24/02 ,  H04W28/0268

Abstract: Techniques are described that detect areas with insufficient radio frequency (RF) coverage in a wireless network. A network management system (NMS) determines one or more service level expectation (SLE) metrics for each client device in a wireless network. The SLE metrics are aggregated to each access point (AP) in the wireless network, and each AP is assigned an AP score based on the aggregated SLE metrics. To identify potential coverage holes, the NMS groups APs having poor AP scores. If a root cause of the poor AP scores cannot be automatically resolved and if the poor AP scores persist for a predetermined period of time, the group of APs is determined to represent a true coverage hole. The NMS may generate a notification regarding recommended corrective actions to the customer and/or IT personnel.

公开(公告)号：US20230275820A1

公开(公告)日：2023-08-31

申请号：US17652787

申请日：2022-02-28

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Randall Frei ,  Jacob Thomas ,  Kush Shah ,  Jisheng Wang ,  Abhiram Madhugiri Shamsundar ,  Robert J. Friday ,  Wesley Purvis

IPC: H04L43/0811 ,  H04L43/02 ,  H04L43/04 ,  H04L43/50

CPC classification number: H04L43/0811 ,  H04L43/02 ,  H04L43/04 ,  H04L43/50

Abstract: A network management system (NMS) initiates, for each of a plurality of wireless and/or wired client devices, a wireless/wired stateful machine configured to continuously monitor at least one pre-connection state and at least one post-connection state of a corresponding wireless/wired connection session, and determines one or more network connection assessments for the plurality of wireless/wired client devices based on success or failure of the pre-connection states and/or the post-connection states. The NMS may also output a notification including identification of a root cause of any network connection failure(s) and/or automatically invoke remedial action intended to address or mitigate the root cause of the network connection failure(s).

公开(公告)号：US20210385660A1

公开(公告)日：2021-12-09

申请号：US17445559

申请日：2021-08-20

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang

IPC: H04W16/10 ,  H04B17/318 ,  H04W16/14 ,  H04W52/24 ,  H04W72/08 ,  H04W72/12

Abstract: Methods and apparatus for automatically reconfiguring network parameters are described. Some embodiments identify communication channels that may interfere with higher priority equipment and deactivate communication channels that may cause harmful interference. Some APs are switched to 2.4 GHz communication channels. In some embodiments, AP operating parameters, such as transmission power are adjusted to reduce interference for higher priority receivers.

公开(公告)号：US20250068507A1

公开(公告)日：2025-02-27

申请号：US18774745

申请日：2024-07-16

Applicant: Juniper Networks, Inc.

Inventor： Ruchit Rajkumar Mehta ,  Abhiram Madhugiri Shamsundar ,  Wenfeng Wang ,  Priti Pallavi

IPC: G06F11/07

Abstract: A network management system may collect processor usage statistics from one or more network devices. The network management system may determine, for each network device of the one or more network devices, aggregate processor usage statistics across a time window based on the processor usage statistics and, based on an aggregate overall processor usage for a given network device exceeding a baseline threshold, analyze aggregate per-process processor usage for the given network device to determine one or more processes as a root cause of anomalous behavior of the given network device. The network management system may generate a remedial action to remediate the root cause.

公开(公告)号：US20250023767A1

公开(公告)日：2025-01-16

申请号：US18902762

申请日：2024-09-30

Applicant: Juniper Networks, Inc.

Inventor： Wenfeng Wang ,  Jisheng Wang

IPC: H04L41/0631 ,  H04W88/08

Abstract: An example system includes access point (AP) devices configured to provide a wireless network at a site; and a network management system that stores network data received from the AP devices, the network data collected by the AP devices or client devices associated with the wireless network, and one or more processors configured to: receive a time series of SLE metrics based on the network data, determine, based on the time series, whether a network event has occurred, in response to a determination that a network event has occurred, determine a root cause for the network event, and in response to a determination that the root cause of the network event is associated with an AP device, determine a classification of the AP device, and determine a network management action for the AP device based on the network event and the classification of the AP device.