公开(公告)号：US20230362859A1

公开(公告)日：2023-11-09

申请号：US17737590

申请日：2022-05-05

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Jerome Henry ,  Sanjay Katabathuni

IPC: H04W56/00 ,  H04W4/06

CPC classification number: H04W56/005 ,  H04W4/06 ,  H04W56/001

Abstract: Time synchronization distribution in a network may be provided. Time synchronization may be performed by an Access Point (AP) with a plurality of client devices. Next, based on information received from performing the time synchronization with the plurality of client devices, it may be determined that a first client device of the plurality of client devices is a representative client device. Then, for a predetermined time period, time synchronization with the first client device and not with others of the plurality of client devices may be performed. The data associated with the time synchronization with the first client device may be broadcast to others of the plurality of client devices.

公开(公告)号：US20230087308A1

公开(公告)日：2023-03-23

申请号：US17481784

申请日：2021-09-22

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Jerome Henry ,  Maik Guenter Seewald ,  Sanjay Katabathuni

IPC: H04W56/00 ,  H04W48/16

Abstract: Ranging and timing may be provided. A station may send an action frame. The action frame may include an Identifier (ID) associated with an upcoming Timing Measurement (TM)/Fine Timing Measurement (FTM) session. The action frame may indicate a purpose of the upcoming TM/FTM session. Next, the station may send, subsequent to sending the action frame, a TM/FTM session request associated with the action frame. The station may then perform the purpose indicated by the action frame.

公开(公告)号：US11172368B2

公开(公告)日：2021-11-09

申请号：US16685771

申请日：2019-11-15

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Katabathuni ,  Benjamin Jacob Cizdziel

IPC: H04L5/00 ,  H04W16/06 ,  H04L1/00 ,  H04W16/18 ,  H04W48/20 ,  H04W64/00 ,  H04W72/08 ,  H04W84/12

Abstract: Location-aware spatial reuse may be provided. First, an Overlapping Basic Service Set (OBSS) transmission to be received at a device may be detected by a first Access Point (AP). Then the location of the device may be determined. Next, based on the determined location, it may be determined that the device is out of range of the first AP. Then, in response to determining that the device is out of range of the first AP, the first AP may perform an OBSS Packet Detect (PD) based Spatial Reuse (SR) transmission without reducing a transmit (Tx) power for the transmission.

公开(公告)号：US20240381246A1

公开(公告)日：2024-11-14

申请号：US18358805

申请日：2023-07-25

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Brian Donald Hart Brian Donald Hart Hart ,  Sanjay Katabathuni ,  Ashok K Moghe

IPC: H04W52/02

Abstract: Disclosed are systems, apparatuses, methods, computer readable medium, and circuits for defining, at a network controller, a standby mode for the AP, which includes a Wi-Fi subsystem and a host subsystem; determining, at the network controller, that the AP satisfies a predetermined criteria; and transmitting, from the network controller to the AP, a standby mode for the host subsystem and a power on mode for a Wi-Fi subsystem, wherein the standby mode includes instructions to cause a host central processing unit (CPU) of the host subsystem to enter sleep mode.

公开(公告)号：US20240276481A1

公开(公告)日：2024-08-15

申请号：US18167268

申请日：2023-02-10

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Maik Guenter Seewald ,  Sanjay Katabathuni

IPC: H04W72/1263 ,  H04W72/563

CPC classification number: H04W72/1263 ,  H04W72/563

Abstract: The automatic determination of components for Time Sensitive Networking (TSN), and more specifically the automatic determination of the Gate Duration (GD) and Guard Band (GB) for TSN may be provided. To determine the GB and/or GD for a TSN gate, a Time Error (TE) may be determined, and TSN components may be received. An Access Category (AC) and a per-AC Enhanced Distributed Channel Access (EDCA) state may be determined using the TID, wherein the per-AC EDCA includes a Contention Window (CW) minimum. Next, an Arbitration Interframe Space Number (AIFSN) of an upcoming data unit is determined using the using the AC and per-AC EDCA. The GB may be determined based on the AIFSN, the CW minimum, and the TE. The Gate Duration (GD) may be determined based on the TE and calculating a number of symbols in a MAC Protocol Data Unit (MPDU) and the upcoming data unit.

公开(公告)号：US11968638B2

公开(公告)日：2024-04-23

申请号：US17721070

申请日：2022-04-14

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Jerome Henry ,  Sanjay Katabathuni

IPC: H04W56/00 ,  H04W88/08

CPC classification number: H04W56/0015 ,  H04W56/0035 ,  H04W56/005 ,  H04W88/08

Abstract: A host clock value may be provided to a client device. An Access Point (AP) may obtain a Timing Synchronization Function (TSF)-based time stamp. Next, the TSF-based time stamp may be placed in an Information Element (IE) that was intended to contain follow up information. The IE may then be transmitted.

公开(公告)号：US20220361126A1

公开(公告)日：2022-11-10

申请号：US17721070

申请日：2022-04-14

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Jerome Henry ,  Sanjay Katabathuni

IPC: H04W56/00

Abstract: A host clock value may be provided to a client device. An Access Point (AP) may obtain a Timing Synchronization Function (TSF)-based time stamp. Next, the TSF-based time stamp may be placed in an Information Element (IE) that was intended to contain follow up information. The IE may then be transmitted.

公开(公告)号：US20210153026A1

公开(公告)日：2021-05-20

申请号：US16685771

申请日：2019-11-15

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Katabathuni ,  Benjamin Jacob Cizdziel

IPC: H04W16/06 ,  H04W48/20 ,  H04W16/18 ,  H04W64/00 ,  H04W72/08 ,  H04L1/00

Abstract: Location-aware spatial reuse may be provided. First, an Overlapping Basic Service Set (OBSS) transmission to be received at a device may be detected by a first Access Point (AP). Then the location of the device may be determined. Next, based on the determined location, it may be determined that the device is out of range of the first AP. Then, in response to determining that the device is out of range of the first AP, the first AP may perform an OBSS Packet Detect (PD) based Spatial Reuse (SR) transmission without reducing a transmit (Tx) power for the transmission.