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公开(公告)号：US11184824B2
公开(公告)日：2021-11-23
申请号：US16256920
申请日：2019-01-24
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Xuguang Jia , Guangzhi Ran , Qiang Zhou
Abstract: Systems and methods are provided for upgrading wireless network devices, such as access points (APs). When a first AP needs an upgrade, a network controller of the first AP may identify and select a neighbor AP. The radio(s) of the neighbor AP can be split into multiple logical radios, at least one of which includes a backup virtual AP (VAP). The backup VAP can support client devices originally supported by the first AP, allowing those client devices to roam to the neighbor AP while the first AP is upgrading, and without needing to re-associate with the neighbor AP. From the client device perspective, it appears as though they are still being supported by the first AP. Upon upgrading the first AP, the client devices can roam back to the first AP (without needing to re-associate with the first AP). No downtime is experienced, and no RF holes are generated.
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公开(公告)号：US20250063384A1
公开(公告)日：2025-02-20
申请号：US18449126
申请日：2023-08-14
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Xuguang Jia , Qiang Zhou , Xiaoyang Fu
Abstract: A method for scanning enhancement is provided. The method comprises receiving a channel scan request, including a scan channel number, a bandwidth, and a total scan time. The method further comprises determining a number of a plurality of scans based on the total scan time and an individual scan time for an AP. The method further comprises determining a plurality of offset values corresponding to the plurality of scans based on the number of the plurality of scans. In addition, the method further comprises performing off-channel scanning based on the scan channel number, the bandwidth, the number of the plurality of scans, and the plurality of offset values. Implementations of the present disclosure can improve the effect and the efficiency of the scanning process, the performance of the features of the upper layer, and the user experience.
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公开(公告)号：US20250062837A1
公开(公告)日：2025-02-20
申请号：US18449384
申请日：2023-08-14
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Kuanyue Li , Xuguang Jia , Hongli Zhang
Abstract: In implementations of the present disclosure, a power compensation determination for radio frequency cable mechanism is provided. An access point (AP) determines a time slot for an RF cable loss measurement on an RF cable, and transmits a test signal with a first TX power to an antenna module over the RF cable. The AP further obtains a second TX power transmitted by the antenna module, and determines an RF cable loss based on the first TX power and the second TX power. The AP further determines power compensation for the RF cable based on the determined RF cable loss, the first TX power and an antenna gain of the antenna module. The AP transmits signals on the RF cable to the antenna module based on the determined power compensation. Implementations of the present disclosure can determine the power compensation based on the RF cable loss automatically.
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公开(公告)号：US20240365300A1
公开(公告)日：2024-10-31
申请号：US18306459
申请日：2023-04-25
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Yongchang Guo , Xuguang Jia , Qiang Zhou
IPC: H04W72/0453 , H04L1/1607 , H04L5/00 , H04W72/044
CPC classification number: H04W72/0453 , H04L1/1642 , H04L5/0048 , H04W72/0473
Abstract: A method for harmonic channel detection is provided. The method comprises receiving, by a first AP working on a first channel, a beacon frame transmitted by a second AP and parsing the beacon frame to obtain information of a second channel indicated in the beacon frame. The method further comprises determining a plurality of candidate harmonic channels and validating that the second channel is one of the candidate harmonic channels. In addition, the method further comprises validating that the beacon frame is transmitted on the second channel based on a sequence number and a TBTT indicated in the beacon frame and discarding the beacon frame. Implementations of the present disclosure can reduce harmonic frames from being reported to a controller at upper layer, and improve the performance of the network.
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Patent Agency Ranking
公开(公告)号：US20240089031A1
公开(公告)日：2024-03-14
申请号：US18511879
申请日：2023-11-16
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Xuguang Jia , Jianpo Han , Qiang Zhou
IPC: H04L1/00
CPC classification number: H04L1/0068
Abstract: In embodiments of the present disclosure, there is provided an approach for selecting a channel puncturing scheme based on channel qualities. A method comprises detecting channel interference between neighbor access points (APs), and determining whether a preamble puncturing needs to be enabled based on some puncturing conditions. After determining that a preamble puncturing needs to be enabled, scores for candidate puncturing patterns are calculated based on channel qualities of the sub-channels in the channel, and a proper puncturing pattern can be selected based on the respective scores. Embodiments of the present disclosure can help AP to achieve an effective and better puncturing scheme in real deployment.
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公开(公告)号：US11855777B1
公开(公告)日：2023-12-26
申请号：US17823172
申请日：2022-08-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Xuguang Jia , Jianpo Han , Qiang Zhou
IPC: H04L1/00
CPC classification number: H04L1/0068
Abstract: In embodiments of the present disclosure, there is provided an approach for selecting a channel puncturing scheme based on channel qualities. A method comprises detecting channel interference between neighbor access points (APs), and determining whether a preamble puncturing needs to be enabled based on some puncturing conditions. After determining that a preamble puncturing needs to be enabled, scores for candidate puncturing patterns are calculated based on channel qualities of the sub-channels in the channel, and a proper puncturing pattern can be selected based on the respective scores. Embodiments of the present disclosure can help AP to achieve an effective and better puncturing scheme in real deployment.
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公开(公告)号：US11582706B2
公开(公告)日：2023-02-14
申请号：US16262292
申请日：2019-01-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Xuguang Jia , Qiang Zhou , Jianpo Han , Guangzhi Ran
Abstract: An example device comprising: a processor to detect a time difference between a first system clock of an access point (AP) and a second system clock of a controller; determine whether the AP has abnormal dock based on the time difference; and automatically recover the first system clock of the AP when the AP has abnormal clock.
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公开(公告)号：US11477732B2
公开(公告)日：2022-10-18
申请号：US17110839
申请日：2020-12-03
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Xuguang Jia , Qiang Zhou , Guangzhi Ran
Abstract: In embodiments of the present disclosure, there is provided an approach for managing Target Wake Time (TWT) clients in a congested environment. According to embodiments of the present disclosure, a TWT client transmits, to an AP, a request to negotiate a schedule for a TWT session. The request comprises a first set of TWT parameters requested by the TWT client. The AP determines, based on respective sets of TWT parameters of existing TWT sessions and the first set of TWT parameters, a second set of TWT parameters for the TWT client to minimize overlap between the TWT session and the existing TWT sessions. The AP transmits a response comprising the second set of TWT parameters to the TWT client. Embodiments of the present disclosure provide an effective way for assigning air resources to multiple TWT clients in a congested environment, thereby reducing collisions among TWT sessions.
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公开(公告)号：US11153824B1
公开(公告)日：2021-10-19
申请号：US17010303
申请日：2020-09-02
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Xuguang Jia , Qiang Zhou , Guangzhi Ran
Abstract: Maintenance and monitoring of target wait time (TWT) sessions is described. An example includes establishing at least a first target wake time (TWT) session for a first station, the first TWT session having a first set of parameters defining a wake time, wake duration, and wake interval for service periods of the first TWT session; selecting the first TWT session for health status determination; selecting a check window for the health status determination and monitoring transmissions from the first station within the check window; based at least in part on the monitoring of the transmissions from the first station, calculating a first TWT session health status value for the first TWT session; and determining whether corrective action is required for the first TWT session based at least in part on the first TWT session health status value.
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