公开(公告)号：US20190158168A1

公开(公告)日：2019-05-23

申请号：US16258584

申请日：2019-01-26

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Gaurav Patwardhan ,  Kiran Ashokan ,  Mohd Shahnawaz Siraj ,  Satish Damodaran

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0632

Abstract: According to examples of present disclosure, a network device may group a first subset of client devices for beamforming transmissions using multi-user multiple-input multiple-output (MU-MIMO), and also group a second subset of client devices associated with the two or more basic service sets for simultaneous data transmission using multi-user orthogonal frequency-division multiple access (MU-OFDMA). The subset of client devices within the same group may be associated with different basic service sets.

公开(公告)号：US20190097695A1

公开(公告)日：2019-03-28

申请号：US15719387

申请日：2017-09-28

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Gaurav Patwardhan ,  Sachin Ganu ,  Mohd Shahnawaz Siraj

IPC: H04B7/0452 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0634 ,  H04W84/12 ,  H04W88/08

Abstract: Example method includes: receiving, by a first access point, a plurality of beamforming feedback frames from a plurality of client devices in a WLAN; overhearing, by the first access point, a first beamforming feedback frame from a second access point; calculating, by the first access point, a second beamforming feedback frame in response to receiving a sounding frame transmitted from the second access point in the WLAN; selecting, by the first access point, a first subset of the plurality of client devices and the second access point as members of a MU-MIMO group; changing, by the first access point, a steering matrix corresponding to the MU-MIMO group based on both the received plurality of beamforming feedback frames and the calculated beamforming feedback frame to allow the first access point and the second access point transmit on a particular wireless communication channel simultaneously without interfering each other.

公开(公告)号：US20180351623A1

公开(公告)日：2018-12-06

申请号：US16057541

申请日：2018-08-07

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Gaurav Patwardhan ,  Kiran Ashokan ,  Mohd Shahnawaz Siraj ,  Satish Damodaran

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0452

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0632

Abstract: MU-MIMO provides a mechanism for a wireless network device to transmit to multiple client devices at the same time. When employing MU-MIMO, a network device may group two or more associated client devices, and transmit beamformed signals to each group. In some implementations, a network device may initiate channel sounding. Channel sounding may include transmitting sounding frames to client devices associated with two or more basic service sets. Channel sounding may facilitate beamforming transmissions to client devices associated with the two or more basic service sets. The network device may receive feedback frames from client devices associated with the two or more basic service sets. A feedback frame may indicate how a sounding frame was received. In some implementations, the network device may further construct a feedback table from the feedback frames. The feedback table may facilitate grouping of the client devices for beamforming transmissions.

公开(公告)号：US12120611B2

公开(公告)日：2024-10-15

申请号：US17599727

申请日：2019-05-01

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Mohd Shahnawaz Siraj ,  Shruthi Koundinya ,  Manoj Thawani ,  Zhijun Ren ,  Gaurav Patwardhan

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: Examples described herein provide wake-up of a network device. Examples include receiving, by a network interface of a first network device having a first Media Access Control (MAC) address, a request to wake-up a second network device having a second MAC address that is assigned to a same subnet as the first MAC address, and in response to the request, generating, by the first network device, a first wake-up frame having a destination address of the second MAC address and configured to cause the second network device to transition from operating in the first power mode to operating in the second power mode. Examples include transmitting, by the network interface of the first network device, the first wake-up frame to the second MAC address of the second network device.

公开(公告)号：US20230403751A1

公开(公告)日：2023-12-14

申请号：US17839040

申请日：2022-06-13

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gaurav Patwardhan ,  Eldad Perahia ,  Sachin Ganu

IPC: H04W76/15 ,  H04W48/16

CPC classification number: H04W76/15 ,  H04W48/16 ,  H04W80/02

Abstract: Systems and methods are provided for defining a split multi-link system. For example, the split multi-link system can define a multi-link device (MLD), where the MLD operates a first radio from a first AP of a plurality of APs and a second radio from a second AP of the plurality of APs through a Media Access Control (MAC) Service Access Point (SAP) of the split multi-link system. The first radio from the first AP and the second radio from the second AP may operate at different frequencies. The split multi-link system may also affiliate the first radio from the first AP and the second radio from the second AP with the MLD, where, using the MLD, the split multi-link system can transmit or receive one or more data frames from the MLD to a non-MLD or MLD client device using the first radio or the second radio.

公开(公告)号：US11778478B2

公开(公告)日：2023-10-03

申请号：US17505348

申请日：2021-10-19

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Abhiruchi Dakshinkar ,  Gaurav Patwardhan ,  Mohd Shahnawaz Siraj

IPC: H04W16/10 ,  H04W16/04 ,  H04W16/08

CPC classification number: H04W16/10 ,  H04W16/04 ,  H04W16/08

Abstract: Systems and methods are provided for opportunistic spatial reuse. In various embodiments, the disclosed systems and methods provide for mechanisms for enabling and disabling spatial reuse in a wireless network as appropriate based on the deployment of the wireless network. In some embodiments, spatial reuse can be enabled and disabled based on various factors, such as channel utilization. In some embodiments, spatial reuse can be enabled and disabled as appropriate for various types of traffic in a wireless network. For example, spatial reuse can be enabled and disabled for downlink traffic (e.g., traffic from an access point to a client device), for uplink traffic (e.g., traffic from a client device to an access point), for multicast or broadcast traffic (e.g., traffic distributed to multiple recipients), or for certain modes of transmission (e.g., single user beamformed transmission, Dual Carrier Modulated transmission).

公开(公告)号：US11706710B2

公开(公告)日：2023-07-18

申请号：US17374533

申请日：2021-07-13

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gaurav Patwardhan ,  Nitin A. Changlani ,  Eldad Perahia ,  Sachin Ganu ,  Mohd Shahnawaz Siraj ,  Abhiruchi Dakshinkar

IPC: H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04W84/12

Abstract: Systems and methods are configured to receive a first request to schedule a Time To Wake (TWT) service period (SP) for a first station. The first request can be based on individual TWT protocol. That the TWT SP satisfies a threshold level of similarity with an existing TWT SP maintained for a group of at least one station scheduled to communicate over the existing TWT SP can be determined. The group can include a second station. The first station can be assigned to the group. A first packet can be transmitted to the first station and a second packet can be transmitted to the second station over the existing TWT SP.

公开(公告)号：US20230121062A1

公开(公告)日：2023-04-20

申请号：US17505348

申请日：2021-10-19

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： ABHIRUCHI DAKSHINKAR ,  Gaurav Patwardhan ,  Mohd Shahnawaz Siraj

IPC: H04W16/10 ,  H04W16/08 ,  H04W16/04

Abstract: Systems and methods are provided for opportunistic spatial reuse. In various embodiments, the disclosed systems and methods provide for mechanisms for enabling and disabling spatial reuse in a wireless network as appropriate based on the deployment of the wireless network. In some embodiments, spatial reuse can be enabled and disabled based on various factors, such as channel utilization. In some embodiments, spatial reuse can be enabled and disabled as appropriate for various types of traffic in a wireless network. For example, spatial reuse can be enabled and disabled for downlink traffic (e.g., traffic from an access point to a client device), for uplink traffic (e.g., traffic from a client device to an access point), for multicast or broadcast traffic (e.g., traffic distributed to multiple recipients), or for certain modes of transmission (e.g., single user beamformed transmission, Dual Carrier Modulated transmission).

公开(公告)号：US20220167272A1

公开(公告)日：2022-05-26

申请号：US17599727

申请日：2019-05-01

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Mohd Shahnawaz Siraj ,  Shruthi Koundinya ,  Manoj Thawani ,  Zhijun Ren ,  Gaurav Patwardhan

IPC: H04W52/02

Abstract: Examples described herein provide wake-up of a network device. Examples include receiving, by a network interface of a first network device having a first Media Access Control (MAC) address, a request to wake-up a second network device having a second MAC address that is assigned to a same subnet as the first MAC address, and in response to the request, generating, by the first network device, a first wake-up frame having a destination address of the second MAC address and configured to cause the second network device to transition from operating in the first power mode to operating in the second power mode. Examples include transmitting, by the network interface of the first network device, the first wake-up frame to the second MAC address of the second network device.

公开(公告)号：US11336487B1

公开(公告)日：2022-05-17

申请号：US17245263

申请日：2021-04-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Abhiruchi Dakshinkar ,  Eldad Perahia ,  Mohd Shahnawaz Siraj ,  Gaurav Patwardhan ,  Sachin Ganu ,  Nitin A. Changlani

IPC: H04L25/02 ,  H04L5/00 ,  H04B7/06 ,  H04W76/15

Abstract: A system and method for optimizing a channel sounding procedure of a multi-link device (MLD) is disclosed. The improved channel sounding procedure disclosed herein involves an MLD requesting channel sounding information from a group of receivers on a first channel representing a first physical frequency, but receiving channel sounding information from a subgroup of the receivers on one or more other channels representing different physical frequencies. In this manner, the channel sounding procedure on a specific link of an MLD is optimized by offloading some of the sounding process to a different radio link that is also operational for the MLD as part of the same association context.