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公开(公告)号：US12081986B2
公开(公告)日：2024-09-03
申请号：US17680557
申请日：2022-02-25
发明人： Shubham Saloni , Abhiruchi Dakshinkar , Wei Hu
IPC分类号： H04W12/122 , H04W48/16 , H04W76/10 , H04W84/12
CPC分类号： H04W12/122 , H04W48/16 , H04W76/10 , H04W84/12
摘要： Examples of techniques for handling unsolicited probe responses are disclosed. In an example, occurrence of an attack on an access point (AP) in an enterprise Wireless Local Area Network (WLAN) is detected based on an unsolicited probe response and Robust Security Network Information Element (RSN IE). Responsive to detecting the attack, unsolicited probe responses at the AP is disabled. Further, Fast initial Link Setup (FILS) discovery at the AP is enabled.
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公开(公告)号：US11665682B2
公开(公告)日：2023-05-30
申请号：US17319003
申请日：2021-05-12
IPC分类号： H04L12/28 , H04W72/0453 , H04J1/16 , H04W84/12
CPC分类号： H04W72/0453 , H04W84/12
摘要： 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：US11375451B2
公开(公告)日：2022-06-28
申请号：US17062494
申请日：2020-10-02
发明人： Abhiruchi Dakshinkar , Gaurav Patwardhan , Mohd Shahnawaz Siraj , Sachin Ganu , Eldad Perahia , Nitin Changlani
IPC分类号： H04W52/02
摘要： The full efficiency gains of the Target Wake Time (TWT) mechanism specified in the 802.11ax standard may not be realized when stations associated to an access point (AP) are spread across multiple Base Station Service Identifiers (BSSIDs). In such a scenario, TWT as conventionally utilized/specified in the 802.11ax standard, cannot properly coordinate sleep/wake schedules for stations due to associating to different BSSIDs. Accordingly, various embodiments are directed to grouping stations associated to multiple BSSIDs of an AP to allow for the synchronization (or staggering) of TWT, and facilitate multi-user transmissions, both in the uplink and downlink directions.
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公开(公告)号：US11778478B2
公开(公告)日：2023-10-03
申请号：US17505348
申请日：2021-10-19
摘要： 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).
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公开(公告)号：US11706710B2
公开(公告)日：2023-07-18
申请号：US17374533
申请日：2021-07-13
发明人： Gaurav Patwardhan , Nitin A. Changlani , Eldad Perahia , Sachin Ganu , Mohd Shahnawaz Siraj , Abhiruchi Dakshinkar
CPC分类号： H04W52/0216 , H04W84/12
摘要： 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.
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公开(公告)号：US11665545B2
公开(公告)日：2023-05-30
申请号：US17245439
申请日：2021-04-30
发明人： Shubham Saloni , Abhiruchi Dakshinkar , Wei Hu
IPC分类号： H04W12/122 , H04W12/088 , H04L29/06 , H04L9/40
CPC分类号： H04W12/122 , H04L63/1458 , H04W12/088 , H04L2463/141
摘要： An access point (AP) in a deployment may be attacked by a rogue AP. The rogue AP may transmit fake beacons that include a fake/incorrect basic service set (BSS) color that does not match the BSS color assigned to/used by the AP under attack. Due to this BSS color mismatch, stations associated to the AP under attack may switch to the fake/incorrect BSS color, and communications between the AP under attack and the stations may be disrupted, and can eventually lead to service denial. Systems and methods are provided for leveraging the BSS color feature to identify when a rogue AP is attacking another AP. Upon detecting an attack, the BSS color feature may be disabled to mitigate the level of service disruption to the AP under attack and the stations associated to that AP.
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公开(公告)号：US11336487B1
公开(公告)日：2022-05-17
申请号：US17245263
申请日：2021-04-30
发明人： Abhiruchi Dakshinkar , Eldad Perahia , Mohd Shahnawaz Siraj , Gaurav Patwardhan , Sachin Ganu , Nitin A. Changlani
摘要： 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.
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公开(公告)号：US12096279B2
公开(公告)日：2024-09-17
申请号：US18151016
申请日：2023-01-06
IPC分类号： H04W28/18 , H04W72/0446 , H04W74/0816 , H04W88/08 , H04W88/10
CPC分类号： H04W28/18 , H04W72/0446 , H04W74/0816 , H04W88/08 , H04W88/10
摘要： A dynamic BSS color feature for co-hosted virtual access points is described. An example of a storage medium includes instructions to operations including enabling, by an access point, a dynamic basic service set (BSS) color feature for operation with multiple virtual access points (VAPs) hosted by the access point; switching a parameter of the access point to indicate that no co-hosted BSS is present; assigning a different BSS color to each of the VAPs; performing access point operations, including utilizing the assigned BSS colors for transmissions relating to any of the VAPs; and disabling the dynamic BSS color feature upon occurrence of one or more conditions.
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公开(公告)号：US11979826B2
公开(公告)日：2024-05-07
申请号：US17488837
申请日：2021-09-29
发明人： Abhiruchi Dakshinkar , Xuguang Jia , Qiang Zhou
IPC分类号： H04W4/00 , H04W48/10 , H04W48/20 , H04W72/542 , H04W72/56
CPC分类号： H04W48/20 , H04W48/10 , H04W72/542 , H04W72/56
摘要： Implementations of the present disclosure relate to selecting a transmitting virtual access point (VAP) for a MBSSID set. A method comprises selecting a VAP from a set of VAPs as a transmitting VAP based on context information about the set of VAPs, at least one of the set of VAPs other than the transmitting VAP being determined as at least one non-transmitting VAP The method also comprises generating a beacon frame for the set of VAPs by including an identifier of the transmitting VAP in a header part of the beacon frame and including at least one identifier of the at least one non-transmitting VAP in a payload part of the beacon frame. A generated beacon frame is broadcasted. In this way, a transmitting VAP of a set of VAPs is no longer determined by default, but can be selected for different cases.
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公开(公告)号：US11490290B2
公开(公告)日：2022-11-01
申请号：US17032926
申请日：2020-09-25
摘要： A method for protecting 802.11 ax networks includes receiving, by an access point, a plurality of Single User (SU) Quality of Service (QOS) NULL frames from a station, tracking, by the access point as the plurality of SU QOS NULL frames are received, a variable in one or more of the plurality of SU QOS NULL frames, determining, by the access point and based on tracking the variable, the station is suspicious, sending, by the access point and in response to determining the station is suspicious, a request to check a status of the variable, determining, by the access point and based on a response to the request, the station is under attack, and flagging, by the access point, the station as under an attack.
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