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公开(公告)号：US20250081256A1
公开(公告)日：2025-03-06
申请号：US18825124
申请日：2024-09-05
Applicant: Cisco Technology, Inc.
Inventor： Binita GUPTA , Malcolm M. SMITH , Brian D. HART , Venkataprasad CHIRREDDY
Abstract: The present disclosure describes an access point that shifts data streams subject to QoS requirements to links that are mapped to handle such traffic. The access point includes one or more memories and one or more processors communicatively coupled to the one or more memories. The one or more processors determine, based on a first traffic identifier for a first data stream, that the first data stream is subject to QoS requirements and in response to determining that the first data stream is subject to QoS requirements, determine a first link that is mapped to the first traffic identifier. The one or more processors carry the first data stream on the first link.
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公开(公告)号：US20250081164A1
公开(公告)日：2025-03-06
申请号：US18825034
申请日：2024-09-05
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART , Malcolm M. SMITH , Binita GUPTA
Abstract: The present disclosure describes an access point that coordinates infrastructure and non-infrastructure communications. The access point includes one or more memories and one or more processors communicatively coupled to the one or more memories. The one or more processors determine that access points of an extended service set are refraining from using a first channel and communicate, to a first device, a first beacon comprising a channel usage element indicating that the first channel is available for the first device to use to communicate directly with a second device.
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公开(公告)号：US20250016039A1
公开(公告)日：2025-01-09
申请号：US18540692
申请日：2023-12-14
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART
Abstract: A format for a Physical layer Protocol Data Unit (PPDU) that can be transmitted over a network is disclosed. The PPDU includes one or more bits signaling that vendor-specific (VS) per-user content is present in the PPDU. The PPDU also includes one or more bits signaling a VS language in which the VS per-user content is presented. The PPDU further includes bits representing the VS per-user content in the VS language. The VS per-user content is arranged in the PPDU to provide individualized VS information for respective users intended to receive the PPDU.
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公开(公告)号：US20240381422A1
公开(公告)日：2024-11-14
申请号：US18316115
申请日：2023-05-11
Applicant: Cisco Technology, Inc.
Inventor： Ardalan ALIZADEH , Vishal S. DESAI , Brian D. HART , Peiman AMINI
IPC: H04W74/08
Abstract: Embodiments herein transmit and receive in a secondary channel when a primary channel is active. In the embodiment, an access point determines that the primary channel is active, which may include waiting until a MAC header of a frame transmitted over the primary channel is decoded. In some embodiments, the access point tests that the received power is below a threshold. When it is determined that the primary channel is active and the received power is below the threshold, the access point transmits an RTS frame and receives a CTS frame over the secondary channel to reserve the secondary channel for a specified duration. In some embodiments, the access point uses NAV tracking to determine the duration of use of the primary channel to avoid collisions on the primary channel.
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公开(公告)号：US20240283538A1
公开(公告)日：2024-08-22
申请号：US18172948
申请日：2023-02-22
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART , Ardalan ALIZADEH
IPC: H04B10/27 , H04B10/2575
CPC classification number: H04B10/27 , H04B10/25752
Abstract: A wireless network architecture with optical connections is described, the architecture enables fronthaul connections that ensure reliable communication between RH and central controllers without being hampered by impairments and other interference in the connections. The architecture includes a central control system, a plurality of radio heads, and a plurality of optical fiber fronthaul connections between the central control system and the plurality of radio heads.
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Patent Agency Ranking
公开(公告)号：US20240015642A1
公开(公告)日：2024-01-11
申请号：US18066870
申请日：2022-12-15
Applicant: Cisco Technology, Inc.
Inventor： Pooya MONAJEMI , Brian D. HART , Vishal S. DESAI , Peiman AMINI , Ardalan ALIZADEH
Abstract: A system includes a memory and a processor communicatively coupled to the memory. The processor, in response to determining that a first number of transmissions over a first link with a first frequency has failed, selects a second link with a second frequency for transmission. The second frequency is lower than the first frequency. The processor also, in response to determining that a second number of transmissions over the second link has failed, one or more of (i) stop the transmissions over the second link or (ii) begins transmissions over a third link with a third frequency. The second number is greater than the first number.
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公开(公告)号：US20230328717A1
公开(公告)日：2023-10-12
申请号：US18332630
申请日：2023-06-09
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART , Malcolm M. SMITH , Sanjay K. KATABATHUNI , Pooya MONAJEMI , Venkataprasad CHIRREDDY
IPC: H04W72/1263 , H04W72/21 , H04W72/52 , H04W72/566
CPC classification number: H04W72/1263 , H04W72/21 , H04W72/52 , H04W72/569
Abstract: A method includes determining whether a first access point of a plurality of access points and a second access point of the plurality of access points should communicate simultaneously over a shared channel in a first network and in response to determining that one of the plurality of access points won contention of a transmission opportunity for the shared channel, dividing the transmission opportunity into a plurality of time slots. The method also includes scheduling transmissions of the first and second access points into the plurality of time slots according to the determination whether the first and second access points should communicate simultaneously over the shared channel and communicating, to the second access point and over a wired network or a second network different from the first network, an indication of whether the second access point should communicate during a first time slot of the plurality of time slots.
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公开(公告)号：US20230094149A1
公开(公告)日：2023-03-30
申请号：US18058604
申请日：2022-11-23
Applicant: Cisco Technology, Inc.
Inventor： Malcolm Muir SMITH , Brian D. HART , Pooya MONAJEMI , Santosh Babaji KULKARNI , Vishal Satyendra DESAI
Abstract: Seamless client roaming for Multi-Link Device (MLD) clients may be provided. First, a Traffic Identifier (TID)-to-link map may be established by an Upper Service Access Point (U-SAP) of a multi-AP MLD entity that assigns subsets of TIDs to at least two links of the entity. For example, a client device logically associates with the U-SAP, while the client device physically connects to a first and second AP of the entity on a respective first and second link, where the first and second AP include first and second Lower Service Access Points (L-SAPs) and are non-collocated. Next, using the map, data received at the U-SAP is directed over one of the two links for transmission to the client device. Further, frame aggregation and block acknowledgment functions may be performed by one of the first or second L-SAP based on whether data transmission is over the first or second link.
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公开(公告)号：US20230034115A1
公开(公告)日：2023-02-02
申请号：US17444008
申请日：2021-07-29
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART , Ardalan ALIZADEH , Daniel J. LYONS , Matthew A. SILVERMAN
Abstract: Aspects discussed herein include a method and associated network device and computer program product. The method includes receiving a network packet, and estimating, using a preamble of the network packet, a power distribution corresponding to a plurality of subcarriers of a channel. The method further includes estimating a carrier frequency offset using the power distribution, and estimating a clock offset using the carrier frequency offset.
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公开(公告)号：US20230027444A1
公开(公告)日：2023-01-26
申请号：US17443403
申请日：2021-07-26
Applicant: Cisco Technology, Inc.
Inventor： Brian D. HART , Malcolm M. SMITH , Sanjay K. KATABATHUNI , Pooya MONAJEMI , Venkataprasad CHIRREDDY
IPC: H04W72/12
Abstract: A method includes determining whether a first access point of a plurality of access points and a second access point of the plurality of access points should communicate simultaneously over a shared channel in a first network and in response to determining that one of the plurality of access points won contention of a transmission opportunity for the shared channel, dividing the transmission opportunity into a plurality of time slots. The method also includes scheduling transmissions of the first and second access points into the plurality of time slots according to the determination whether the first and second access points should communicate simultaneously over the shared channel and communicating, to the second access point and over a wired network or a second network different from the first network, an indication of whether the second access point should communicate during a first time slot of the plurality of time slots.
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