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公开(公告)号：US10674513B2
公开(公告)日：2020-06-02
申请号：US16541230
申请日：2019-08-15
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Dongwoon Hahn , Sachin Ganu , Eldad Perahia , Gaurav Patwardhan
Abstract: Systems and methods for assigning default an alternative BSS colors in a wireless local area network (WLAN) including a network graph representing radio neighbors include assigning a frequency range and EIRP for each radio represented in the network graph; generating a subgraph of radios operating at the same frequency range; for the subgraph, determining a minimum number of basic service set (BSS) colors required to BSS color the subgraph without BSS color conflict; based on the minimum number of BSS colors, assigning a default BSS color to each radio in the subgraph to avoid BSS color conflict among radios in the subgraph; based on remaining BSS colors, assigning one or more alternative BSS colors to each radio in the subgraph.
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42.发明申请公开(公告)号：US20190335486A1
公开(公告)日：2019-10-31
申请号：US15966971
申请日：2018-04-30
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Gaurav Patwardhan , Sachin Ganu , Eldad Perahia , Dongwoon Hahn
IPC: H04W72/12
Abstract: Methods for assigning effective isotopic radiated power to an access point in a wireless network are provided. In one aspect, a method includes determining weights for neighboring access points in a wireless network based on channel frequency and basic service set color assignments. For a particular access point, a first path loss based on the determined weights and a second path loss based on the neighboring access points are calculated. First and second effective isotopic radiated power values are calculated based on the respective first and second path losses. The effective isotopic radiated power of the particular access point is adjusted based on the lower of the first and second calculated effective isotopic radiated power values. Systems and machine-readable media are also provided.
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公开(公告)号：US11882601B2
公开(公告)日：2024-01-23
申请号：US17475663
申请日：2021-09-15
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Amogh Guruprasad Deshmukh , Abhiruchi Dakshinkar , Eldad Perahia
IPC: H04W24/10 , H04W74/08 , H04L1/20 , H04L1/00 , H04W72/542
CPC classification number: H04W74/0816 , H04L1/0003 , H04L1/203 , H04W24/10 , H04W72/542
Abstract: Examples of techniques for dynamically controlling data bursts are described. In an example, an access point (AP) monitors a link quality between the AP and a client device associated with the AP. The AP determines a channel occupancy of a channel in which the AP is configured to operate. In response to determining that the channel occupancy is less than a channel busy threshold, the AP modifies a burst duration for traffic flow between the AP and the client device based on the link quality. The AP communicates with the client device using the channel for the modified burst duration.
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44.发明授权公开(公告)号：US11856602B2
公开(公告)日：2023-12-26
申请号：US17351843
申请日：2021-06-18
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Nitin A. Changlani , Eldad Perahia , Gaurav Patwardhan , Abhiruchi Dakshinkar , Sachin Ganu
CPC classification number: H04W74/0808 , H04L1/0003 , H04L1/0071 , H04W84/12
Abstract: Systems and methods are provided for using a short data frame sent at a particular rate that can be used to probe a channel on which an access point is operating. The rate can be increased/decreased depending on whether or not transmission of the short data frame was successful or not. In this way, the highest possible rate (which can be impacted by any or all of the following factors: number of spatial streams, modulation and coding scheme, channel bandwidth, guard interval) can be selected to transmit data on the channel. In other words, a transmission rate can be selected dynamically and on a per-packet basis for a spatial reuse data frame that would follow the short data frame based on whether transmission of the short data frame was successful.
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公开(公告)号：US11683835B2
公开(公告)日：2023-06-20
申请号：US17221596
申请日：2021-04-02
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Gaurav Patwardhan , Eldad Perahia , Abhiruchi Dakshinkar , Nitin A. Changlani , Sachin Ganu
CPC classification number: H04W74/0816 , H04W28/0268 , H04W28/0975 , H04W28/18 , H04W74/0808
Abstract: Currently, spatial reuse (SR) is a feature used indiscriminately for/across all traffic classes. However, systems and methods are provided for reducing channel access latency via selective application of SR for latency-sensitive and high-priority traffic. If a radio frequency (RF) signal is detected on a channel used by an access point (AP) or a client device, a determination can be made as to whether the energy of the RF signal relative to SR energy level thresholds permits transmission on that channel used simultaneously by another, e.g., neighboring AP. If so, frames can be transmitted so long as the other neighboring AP is associated with a different basic service set (BSS) color than that of the AP, and so long as the frames to be transmitted belong to a high-priority/low-latency traffic access category.
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Patent Agency Ranking
46.发明申请公开(公告)号：US20220408480A1
公开(公告)日：2022-12-22
申请号：US17351843
申请日：2021-06-18
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： NITIN A. CHANGLANI , Eldad Perahia , Gaurav Patwardhan , Abhiruchi Dakshinkar , Sachin Ganu
Abstract: Systems and methods are provided for using a short data frame sent at a particular rate that can be used to probe a channel on which an access point is operating. The rate can be increased/decreased depending on whether or not transmission of the short data frame was successful or not. In this way, the highest possible rate (which can be impacted by any or all of the following factors: number of spatial streams, modulation and coding scheme, channel bandwidth, guard interval) can be selected to transmit data on the channel. In other words, a transmission rate can be selected dynamically and on a per-packet basis for a spatial reuse data frame that would follow the short data frame based on whether transmission of the short data frame was successful.
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公开(公告)号：US20220369314A1
公开(公告)日：2022-11-17
申请号：US17319003
申请日：2021-05-12
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Abhiruchi Dakshinkar , Eldad Perahia , Gaurav Patwardhan , Nitin A. Changlani , Sachin Ganu
IPC: H04W72/04
Abstract: Currently, spatial reuse (SR) is a feature used indiscriminately for/across all traffic classes. However, systems and methods are provided for increasing the reliability of voice traffic and Transmission Control Protocol (TCP) Acknowledgement (ACK) messaging. The result is improved quality of voice calls, and enhanced network capacity. When the length of a data section of a packet suggests that subsequent packets are associated with voice traffic or TCP ACKs, such packets are not transmitted when another transmission(s) is occurring under spatial reuse. When a determination is made that the length of a data section of the packet suggests non-voice traffic or TCP ACKs, they can be transmitted simultaneously with other transmissions occurring under spatial reuse.
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公开(公告)号：US20220322436A1
公开(公告)日：2022-10-06
申请号：US17221596
申请日：2021-04-02
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Gaurav Patwardhan , Eldad Perahia , Abhiruchi Dakshinkar , Nitin A. Changlani , Sachin Ganu
Abstract: Currently, spatial reuse (SR) is a feature used indiscriminately for/across all traffic classes. However, systems and methods are provided for reducing channel access latency via selective application of SR for latency-sensitive and high-priority traffic. If a radio frequency (RF) signal is detected on a channel used by an access point (AP) or a client device, a determination can be made as to whether the energy of the RF signal relative to SR energy level thresholds permits transmission on that channel used simultaneously by another, e.g., neighboring AP. If so, frames can be transmitted so long as the other neighboring AP is associated with a different basic service set (BSS) color than that of the AP, and so long as the frames to be transmitted belong to a high-priority/low-latency traffic access category.
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公开(公告)号：US11356133B1
公开(公告)日：2022-06-07
申请号：US17245967
申请日：2021-04-30
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Farhan Hasnain , Nitin A. Changlani , Eldad Perahia , Deven Patel
Abstract: Systems and techniques are described that are directed to filter frequency response shift compensation, including attenuation compensation. Attenuation compensation can apply a pre-distortion to compensate for the magnitude of attenuated resource units (RUs). Additionally, filter frequency response shift can involve applying PHY Protocol Data Unit (PPDU) scheduling schemes. For example, a PPDU scheduling scheme can reduce bandwidth in the channel, thereby dropping the affected RUs. The attenuation compensation is implemented using front ends that provide feedback to a respective radio, which allows that radio to apply the appropriate pre-distortion. The front end can include one or more filters enabling frequency domain coexistence between collocated radios operating in the differing Wi-Fi bands, and a coupler that provides the feedback indicating the frequency response shift to a radio. The radio then applying a digital pre-distortion to a signal input into the one or more filters to compensate for the attenuated RUs.
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公开(公告)号：US20210392581A1
公开(公告)日：2021-12-16
申请号：US16902412
申请日：2020-06-16
Applicant: Hewlett Packard Enterprise Development LP
Inventor： Gaurav Patwardhan , Eldad Perahia
IPC: H04W52/02 , H04W16/14 , H04B17/318
Abstract: Embodiments are directed to dynamic frequency selection (DFS) for wake up radio (WUR). An embodiment of a storage medium includes instructions to cause operations including select, by a primary access point (AP), a surrogate AP to communicate with a wake up radio of a station that is associated with the primary AP operating on a Dynamic Frequency Selection (DFS) channel; provide, by the primary AP to the surrogate AP, wake up radio parameters negotiated between the station and the primary AP; cause, by the primary AP, the surrogate AP to send a wake up signal to the station, the wake up signal to cause the wake up radio of the station to enable a primary connectivity radio of the station; and exchange, by the primary AP, data with the station via the primary connectivity radio after the primary connectivity radio is enabled.
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