公开(公告)号：US20220137176A1

公开(公告)日：2022-05-05

申请号：US17089119

申请日：2020-11-04

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Jerome Henry ,  Robert Edgar Barton ,  Sivadeep R. Kalavakuru

IPC: G01S5/02 ,  G01S5/00 ,  H04W4/80 ,  H04B17/318

Abstract: A location server collects from access points at known locations in a venue, which is represented by grid locations defined by parameters accessible to the location server, (i) ultra wideband (UWB) location measurements for a UWB location technology based on UWB transmissions from mobile devices in the venue, and (ii) non-UWB location measurements for non-UWB location technologies based on non-UWB transmissions from the mobile devices. The location server associates the non-UWB location measurements for the non-UWB location technologies with the grid locations, using the UWB location measurements as reference measurements. The location server populates location calibration records for the grid locations of the venue with the non-UWB location measurements associated with the grid locations. The location server calibrates the non-UWB location technologies at the grid locations based on the non-UWB location measurements in the location calibration records associated with the grid locations.

公开(公告)号：US20220094072A1

公开(公告)日：2022-03-24

申请号：US17027597

申请日：2020-09-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sivadeep R. Kalavakuru ,  Fred Jay Anderson ,  Xiangxiang Fang ,  Robert S. Snider ,  John Martin Blosco

IPC: H01Q21/00 ,  H04L12/10 ,  H04W88/08 ,  H04L12/40 ,  H04B1/04

Abstract: In one embodiment, an apparatus includes a plurality of antennas, a plurality of Front End Modules (FEMs) coupled to the antennas, an input for receiving Power over Ethernet (PoE), a PoE detector for identifying a type of PoE received at the apparatus, wherein the type of PoE is associated with a PoE power budget, and a power controller for applying a PoE power conservation policy based on the PoE power budget, wherein applying the PoE power conservation policy comprises switching between a normal operating voltage and a reduced operating voltage at the FEMs. A method is also disclosed herein.

公开(公告)号：US12003308B2

公开(公告)日：2024-06-04

申请号：US17443474

申请日：2021-07-27

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep R. Kalavakuru ,  Ardalan Alizadeh ,  Fred J. Anderson ,  John M. Blosco

IPC: H04B7/08 ,  H04W24/02

CPC classification number: H04B7/0817 ,  H04B7/0857 ,  H04B7/0865 ,  H04B7/0882 ,  H04W24/02

Abstract: In one embodiment, a system for allocating clients between radios of an access point is disclosed. The system includes a first antenna coupled to a first radio, a second antenna coupled to a second radio, and a monitoring radio coupled to the first antenna and second antenna. The system includes computer-readable instructions that cause the system to receive at the monitoring radio, a first client attribute from each of a plurality of first client devices, and a second client attribute from each of a plurality of second client devices, and provide each aforementioned attribute to an optimization function. The system determines, with the optimization function, that one of the first radio and second radio will optimize performance for at least one device of the plurality of first client devices and second client devices and steer the at least one device accordingly.

公开(公告)号：US11991787B2

公开(公告)日：2024-05-21

申请号：US17027597

申请日：2020-09-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Sivadeep R. Kalavakuru ,  Fred Jay Anderson ,  Xiangxiang Fang ,  Robert S. Snider ,  John Martin Blosco

IPC: H04L12/10 ,  H04B1/04 ,  H04L12/40 ,  H04W88/08

CPC classification number: H04W88/085 ,  H04B1/0458 ,  H04L12/10 ,  H04L12/40045

Abstract: In one embodiment, an apparatus includes a plurality of antennas, a plurality of Front End Modules (FEMs) coupled to the antennas, an input for receiving Power over Ethernet (PoE), a PoE detector for identifying a type of PoE received at the apparatus, wherein the type of PoE is associated with a PoE power budget, and a power controller for applying a PoE power conservation policy based on the PoE power budget, wherein applying the PoE power conservation policy comprises switching between a normal operating voltage and a reduced operating voltage at the FEMs. A method is also disclosed herein.

公开(公告)号：US11799528B2

公开(公告)日：2023-10-24

申请号：US17305237

申请日：2021-07-01

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep R. Kalavakuru ,  Ardalan Alizadeh ,  Gautam D. Bhanage ,  Matthew A. Silverman

IPC: H04B7/06 ,  H04B7/155 ,  H04B17/336 ,  H04B17/318

CPC classification number: H04B7/0617 ,  H04B7/15564 ,  H04B17/318 ,  H04B17/336

Abstract: A method includes measuring an interference caused by a first radio in a multi-link device to a second radio of the multi-link device and in response to determining that the interference exceeds a threshold, repeatedly narrowing a transmission beam width of the first radio until the interference falls below the threshold.

公开(公告)号：US11424886B2

公开(公告)日：2022-08-23

申请号：US16864052

申请日：2020-04-30

Applicant: Cisco Technology, Inc.

Inventor： Gautam D. Bhanage ,  John M. Blosco ,  Sivadeep R. Kalavakuru ,  Xiangxiang Fang ,  Khashayar Mirfakhraei

IPC: G01R29/10 ,  H04L5/00 ,  H04W24/02

Abstract: Embodiments for preliminary antenna configuration for a radio in an access point are described. A preliminary antenna configuration with a first number of antennas transmitting at a first power level based on a maximum transmission power for the radio is used to determine a second antenna configuration based on network level factors, where the second antenna configuration includes a second number of antennas. The second antenna configuration is used to determine a third antenna configuration from the second antenna configuration, where the third antenna configuration includes a third number of antennas transmitting at a third power level based on a client transmission factors for a plurality of client devices connected to the access point. The third antenna configuration is used to transmit network traffic from the access point to the plurality of client devices using the third antenna configuration.

公开(公告)号：US11143738B1

公开(公告)日：2021-10-12

申请号：US16989204

申请日：2020-08-10

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep R. Kalavakuru ,  Matthew Aaron Silverman ,  Xiaohua Fang ,  Rahul Dasgupta ,  Huy Phuong Tran ,  Abhishek Bhattacharyya

IPC: G01S5/10 ,  H04W4/029 ,  H04B17/318

Abstract: An access point includes first and second radios that operate in accordance with first and second wireless protocols, respectively. The access point performs a method including receiving a first protocol packet of the first wireless protocol and a second protocol packet of the second wireless protocol transmitted by a wireless device over a communication channel, and measuring a first received power of the first protocol packet and a second received power of the second protocol packet at the access point. The method further includes determining whether reception times of the first protocol packet and the second protocol packet are within a coherence time for the communication channel and, when the reception times are within the coherence time, combining the first received power and the second received power into a multiprotocol received power. The method also includes determining a location of the wireless device based on the multiprotocol received power.