Cisco Technology, Inc.

Cisco Systems Wireless Networking (australia) Pty Limited

Other

Brian Donald Hart

David Stuart Kloper

Matthew Aaron Silverman

Paul Jeffrey Stager

Pooya Monajemi

Santosh Ghanshyam Pandey

Bretton Lee Douglas

John D O'Sullivan

Gautam Dilip Bhanage

Philip J Ryan

Vishal Satyendra Desai

Malcolm Muir Smith

Ahmadreza Hedayat

Raghuram Rangarajan

Daniel Joseph Lyons

Jiunming Huang

Allan Thomson

Benjamin Jacob Cizdziel

Andrew Frederick Myles

Mithat C Dogan

Andrew Robert Adams

Jason R Crawford

Jerome Henry

David Sheldon Stephenson

Ardalan Alizadeh

Douglas Chan

Jie Cheng Jiang

Milind Paranjpe

Kevin C H Wong

Eldad Perahia

Rajesh S Pazhyannur

Fred Jay Anderson

Neil Robert Diener

Xiaohong Gong

Lu Qian

David McClead Theobold

Qing Zhao

Zhigang Gao

James A Amos

Anand K Oswal

Arun G Khanna

John Matthew Swartz

David J Pignatelli

Robert B O'Hara, Jr

Khashayar Mirfakhraei

Xu Zhang

Christopher Graham Meil

Richard A Keaney

Venkataprasad Chirreddy

Dan Lyons

Kurt A Lumbatis

Uri Parker

Allen Huotari

Abhijit Kumar Choudhury

Timothy S Olson

Santosh Babaji Kulkarni

Glendon Leo Akins, Iii

Mansoor Ahmed

Genyuan Wang

Dipankar Bhatt Acharya

Rong Peng

Sanjay Kishore Katabathuni

Sujai Hajela

Edward Frederick Wright

Igal Gutkin

Emilio Maldonado

Pascal Thubert

Hang Jin

Robert E Barton

Norman William Finn

Vikram Chandrasekhar

Sudhir Kumar Jain

Gary L Sugar

Robert J Friday

Domenico Ficara

Binita Gupta

Indermeet Singh Gandhi

Amine Choukir

Mukesh Taneja

Stephen Michael Orr

Rohit Kumar Suri

Manoj Gupta

Johannes Petrus Kruys

Xiaoli Ma

Tak Ming Pang

Mark Krischer

David S Goodall

Amir Hosein Kamalizad

Bhautik Doshi

Alex C K Lam

Joshua David Suhr

Kasi Nalamalapu

Jagdish Girimaji

Ender Ayanoglu

Huaiyi Wang

Mohammad Janani

Christopher Sean Johnson

Kayshav Dattatri

Greg Corsetto

Christine Andiazabal

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.

Multi-link operation with localized performance of B-ACK functions

Secure device location sharing may be provided. Over a secured link, an indication that a peer-to-peer device desires Automated Frequency Coordination (AFC) based location sharing may be received. Then, from the peer-to-peer device over the secured link, an identity provider (IdP) may be received for the peer-to-peer device. Next, validation of the peer-to-peer device may be requested from the IdP. From the IdP in response to requesting validation of the peer-to-peer device from the IdP, authentication for the peer-to-peer device and an indication that the peer-to-peer device needs AFC based location sharing may be received. An indication that the peer-to-peer device is approved for AFC based location sharing may then be sent to the peer-to-peer device over the secured link.

Secure device location sharing

Signal to Interference and Noise Ratio (SINR) estimation, and more specifically providing SINR estimation during Legacy Long Training Field (LLTF) accounting for Inter Symbol Interference (ISI) may be provided. SINR estimation may include receiving a Physical Layer Protocol Data Unit (PPDU) including a LLTF and extracting groups of transmission symbols from the LLTF. Next, groups of fragmented symbols may the groups of transmission symbols. One or more Sum of the Squared Magnitudes (SSM) may be determined, such as an SSM of the total signal, an SSM of the signal without ISI and/or noise, an SSM of ISI, an SSM of noise. Finally, SINR may be estimated using one or more SSMs (e.g., the SSM of noise, the SSM of signal, and the SSM of ISI).

Signal to interference and noise ratio estimation

Signaling Multi-Link Device (MLD) capabilities is provided. Signaling MLD capabilities can comprise maintaining, by a non-Access Point (AP) Multi-Link Device (MLD), an association with an AP MLD, the association comprising one or more setup links between the non-AP MLD and the AP MLD, each setup link established between an affiliated non-AP station (STA) of the non-AP MLD and an affiliated AP of the AP MLD. To add a link, the non-AP MLD generates and transmits to the AP MLD a Link Reconfiguration Request frame comprising a Reconfiguration Multi-Link element with one or more subfields, including an Extended MLD Capabilities and Operations subfield, comprising data indicating MLD capabilities of the non-AP MLD. Responsive to receiving a Link Reconfiguration Response frame indicating a success from the AP MLD, the non-AP MLD adds the link to the one or more setup links of the association between the AP MLD and the non-AP MLD.

Signaling multi-link device capabilities

Disclosed are systems, apparatuses, methods, and computer-readable media for identifying a location of a wireless device. A method for identifying a location of a wireless device includes transmitting a request message to the wireless device for identifying a position of the wireless device; receiving a response message from the wireless device; determining first time information based on a time of flight (ToF) of the request message and the response message, wherein the ToF corresponds to a distance of the wireless device from the AP; receiving a second message from a second AP that includes second time information associated with the request message and the response message; receiving a third message from a third AP that includes third time information associated with the request message and the response message; and transmitting location configuration information to the wireless device for the wireless device to determine a position of the wireless device.

Estimating position from reference signals received by coordinating access points

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.

PPDU format supporting vendor specific per-user parameters

The present disclosure is directed to simultaneous channel sounding on multiple MLO channels followed by determining phase and amplitude corrections based on channel impulse responses obtained on each MLO channel. The corrections are then used in subsequent extrapolation of channel sounding on one channel to another. In one aspect, a method includes transmitting, on each radio interface of a first multi-link device, a corresponding sounding probe to a second multi-link device; determining, by each radio interface of the first multi-link device, a corresponding channel impulse response based on the corresponding sound probe to yield a plurality of channel impulse responses; determining an offset between the plurality of channel impulse responses; and using the offset during a subsequent extrapolation of a sounding probe on one radio interface to a second radio interface of the first multi-link device.

Phase lock loop phase ambiguity mitigation for multi-link operation extrapolated sounding

Access Point ranging and placement on a floorplan may be provided. A host AP may range each neighbor AP of the host AP. One or more neighbor APs that failed ranging with the host AP may be categorized in a failed neighbor AP list. The host AP may re-range each of the one or more neighbor APs in the failed neighbor AP list with a modified ranging parameter. At least one neighbor AP of the one or more neighbor APs may be categorized in the failed neighbor AP list that succeeded in re-ranging with the host AP in an extended range neighbor AP list.

Access point (AP) ranging and placement on a floorplan

An access point in a wireless network communicates wirelessly with one or more client devices over a channel that includes a plurality of subchannels. Radar is detected on a first subchannel of the plurality of subchannels. It is determined to puncture the first subchannel, based on the detecting the radar on the first subchannel and based on one or more puncturing factors. The first subchannel is punctured, the puncturing comprising muting one or more subcarriers on the first subchannel.

Channel selection for dynamic-frequency-selection channels using puncturing

Time Sensitive Networking (TSN) Quality of Service (QoS) in overlapped administrative domains may be provided. A first Access Point (AP) may detect at least a second AP in a Co-Channel Interference (CCI) range. A micro-transaction auction between the first AP and at least the second AP may be established, and the first AP may provide compensation to second AP to acquire an agreement, from the second AP, to forgo transmitting during an upcoming service period. Next, the first AP may schedule transmissions for the service period and then transmit in the service period without interference from the second AP.

Time sensitive networking (TSN) quality of service (QoS) in overlapped administrative domains

Systems, methods, and computer-readable media for an integrated Wi-Fi Access Point and cellular network Radio Unit (RU) include a communication system interfacing with a wired network for communicating Wi-Fi traffic and cellular network traffic, the communication system integrating a Wi-Fi Access Point (AP) with a cellular network Radio Unit (RU). The Wi-Fi traffic and cellular network traffic can be processed in the communication system. The communication system can interface with at least one programmable Radio Frequency (RF) front end configured for wireless communication over one or more frequency bands for Wi-Fi traffic and one or more frequency bands for cellular network traffic (e.g., 5G, LTE, Wi-Fi).

Integration of a Wi-Fi access point with a cellular radio unit

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.

Over-the-wire access point coordination

A device includes a memory and a hardware processor communicatively coupled to the memory. The hardware processor determines that a computing device communicatively coupled to an access point performed an action with respect to the access point and in response to determining that the action causes a deviation from a multi-user uplink policy of the access point, transmits a disciplinary message to the computing device.

Network compliance and admission control

The present disclosure describes a system and method for deconflicting locally administered medium access control addresses (LAMAs). An apparatus includes a memory and a processor communicatively coupled to the memory. The processor receives a request for a client device to use a LAMA and determines that the LAMA is reserved for future use by a first access point. The processor also transmits to the client device a message denying connectivity to the client device using the LAMA.

Network that handles conflicting locally administered addresses

Preamble puncturing configuration information is encoded in a pad field, and alternatively or additionally, in a Service Field, depending on a transmission bandwidth of a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). Some implementations also encode one or more parity bits in the pad field or Service field. The PPDU including the preamble puncturing configuration information encodes, in various embodiments, a request to send frame, a clear to send frame, a power save poll frame, or a contention free end frame.

Signaling of preamble puncturing configuration in a non-high throughput RTS/CTS exchange

Growing community of inventors

San Jose, CA, United States of America

Brian Donald Hart