公开(公告)号：US10652860B2

公开(公告)日：2020-05-12

申请号：US15906159

申请日：2018-02-27

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Qiang Zhou ,  Jianpo Han ,  Guangzhi Ran

IPC: H04W72/04 ,  H04B17/318 ,  H04L5/00 ,  H04J11/00 ,  H04W84/12

Abstract: An example method of controlling a wireless access point may include causing the wireless access point to identify any groupings of contiguous non-protocol FFT bins of a wireless channel in which all of the non-protocol FFT bins in the grouping have respective signal strength values exceeding a first threshold, and a bandwidth of the grouping does not exceed a second threshold. The method may also include causing the wireless access point to identify any resource units of the wireless channel that overlap with any of the identified groupings. The method may also include causing the wireless access point to, in allocating the resource units to client devices for an OFDMA communication, skip the identified resource units.

公开(公告)号：US11856503B2

公开(公告)日：2023-12-26

申请号：US17242496

申请日：2021-04-28

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Qiang Zhou ,  Jianpo Han ,  Guangzhi Ran

IPC: H04W4/00 ,  H04W48/02 ,  H04B7/0452 ,  H04L5/00 ,  H04W48/08 ,  H04W72/56 ,  H04W72/542

CPC classification number: H04W48/02 ,  H04B7/0452 ,  H04L5/0007 ,  H04W48/08 ,  H04W72/542 ,  H04W72/56

Abstract: An example method of controlling a wireless access point may include associating accumulated-channel-resource-consumption variables with, respectively, resource consumers of the wireless access point. The method may further include, for wireless communications of the wireless access point: determining a number of spatial streams effectively consumed by the respective wireless communication; determining an operational bandwidth effectively consumed by the respective wireless communication; determining a duration of the respective wireless communication; determining a channel-resource-consumption amount for the respective wireless communication based on the number of spatial streams effectively consumed by the respective wireless communication, the operational bandwidth effectively consumed by the respective wireless communication, and the duration of the respective wireless communication; and determining values for the accumulated-channel-resource-consumption variables by accumulating the channel-resource-consumption amounts per resource consumer. The method may further include determining whether to impose channel access restrictions on the resource consumers based on their respective accumulated-channel-resource-consumption variables.

公开(公告)号：US11457407B2

公开(公告)日：2022-09-27

申请号：US16547183

申请日：2019-08-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Qiang Zhou ,  Jianpo Han ,  Guangzhi Ran

IPC: H04W52/02 ,  H04L12/18 ,  H04W72/00

Abstract: In one example a computer implemented method comprises receiving, at an access point of a wireless network, a multicast/broadcast frame which identifies one or more stations associated with the access point as a recipient for the multicast/broadcast frame, and in response to a determination that at least one station of the one or more stations identified as a recipient for the multicast/broadcast frame is in an inactive state, determining a beacon slot time for a transmission of the multicast/broadcast frame from the access point, in response to a determination that at least one of the one or more stations in an inactive state will miss the beacon signal, converting the multicast/broadcast frame to a unicast frame, and holding a copy of the unicast frame to be transmitted to the at least one of the one or more stations in an inactive state that will miss the beacon signal.

公开(公告)号：US11297496B2

公开(公告)日：2022-04-05

申请号：US16118614

申请日：2018-08-31

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Aidan Doyle ,  Mohd Shahnawaz Siraj ,  Guangzhi Ran

IPC: H04W12/04 ,  H04L29/06 ,  H04L9/08 ,  H04W88/08 ,  H04W84/12

Abstract: In some examples, a non-transitory computer-readable medium storing instructions executable by the processing resource to store an encryption key on the AP, at the AP, decrypt a management frame with the stored encryption key to determine state information of a station, store the state information, and generate a management frame at the AP based on the stored state information.

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

IPC: H04W36/18 ,  H04W36/08 ,  H04W88/18 ,  G06F8/65 ,  H04L12/24 ,  H04W88/12 ,  H04W24/04

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.

公开(公告)号：US11064375B2

公开(公告)日：2021-07-13

申请号：US16639919

申请日：2017-09-01

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Guangzhi Ran ,  Jianpo Han ,  Qiang Zhou

IPC: H04W24/06 ,  H04W84/12 ,  H04W88/08

Abstract: According to one example of the present disclosure, an access point (AP) comprises a wired interface and a wireless interface. External wireless client devices may associate with the AP and the AP may forward traffic received from the wireless clients. The AP includes a virtual client which is to simulate a wireless client device.

公开(公告)号：US11039373B2

公开(公告)日：2021-06-15

申请号：US16547186

申请日：2019-08-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Guangzhi Ran ,  Qiang Zhou ,  Jianpo Han

IPC: H04L12/28 ,  H04W48/08 ,  H04W72/12 ,  H04W84/12

Abstract: In one example a computer implemented method comprises estimating, in a processor communicatively coupled to a wireless client of a composite device, a first transmission time for an uplink beacon from a first access point communicatively coupled to the wireless client, scheduling, in the processor, a second transmission time for a beacon from a local access point of the composite device, and defining a scan window during which scan operations for the wireless client of the composite device and the local access point of the composite device are to occur, the scan window offset from the second transmission time by a first time buffer.

公开(公告)号：US20200077258A1

公开(公告)日：2020-03-05

申请号：US16118614

申请日：2018-08-31

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Aidan Doyle ,  Mohd Shahnawaz Siraj ,  Guangzhi Ran

IPC: H04W12/04 ,  H04L29/06 ,  H04L9/08 ,  H04W88/08

Abstract: In some examples, a non-transitory computer-readable medium storing instructions executable by the processing resource to store an encryption key on the AP, at the AP, decrypt a management frame with the stored encryption key to determine state information of a station, store the state information, and generate a management frame at the AP based on the stored state information.

公开(公告)号：US20190335499A1

公开(公告)日：2019-10-31

申请号：US16356143

申请日：2019-03-18

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Jianpo Han ,  Qiang Zhou ,  Guangzhi Ran

IPC: H04W74/04 ,  H04W56/00 ,  H04W74/00 ,  H04W72/12

Abstract: An example device comprising: a processor to determine that a client device is located in an overlapping area between the first network device and a second network device, to synchronize a first clock of the first network device with a second clock of the second network device, to negotiate, with the second network device, a overlapping access window, an overlapping forbidden window, and a non-overlapping access window for the first network device and the second network device in beacon intervals, to allocate the overlapping access window, the overlapping forbidden window, and the non-overlapping access window by the first network device, to store the allocated overlapping access window, the allocated overlapping forbidden window, and the allocated non-overlapping access window as channel scheduling rules for spatial reuse, and to control frame transmission of the network device based on the channel scheduling rules:

公开(公告)号：US20190335317A1

公开(公告)日：2019-10-31

申请号：US15966393

申请日：2018-04-30

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Qiang Zhou ,  Sachin Ganu ,  Guangzhi Ran ,  Jianpo Han

IPC: H04W8/12 ,  H04W24/08

Abstract: An example of controlling a network of wireless access points (APs) to detect that a client device associated with the network is stationary in an AP-overlap area, and in response to the detection that the client device is stationary in the AP-overlap area, assigning one of the APs to be a preferred AP for the client device. The APs are to avoid connecting with any client devices that have been assigned another AP as a preferred AP. Thus, the stationary client device in the overlap area may be prevented from undesired roaming.