公开(公告)号：US20240030599A1

公开(公告)日：2024-01-25

申请号：US17813679

申请日：2022-07-20

Applicant: Cisco Technology, Inc.

Inventor： Fred J. ANDERSON ,  Jonathan M. CYPHERT ,  John M. SWARTZ ,  Daniel N. JOHNSON ,  Danielle N. BANE

IPC: H01Q3/34 ,  H01Q1/22 ,  H01Q15/02

CPC classification number: H01Q3/34 ,  H01Q1/22 ,  H01Q15/02

Abstract: Embodiments herein describe mounting one or more lasers onto an AP to generate a laser pattern on a surface representing the coverage area of an antenna in the AP. In one embodiment, the antenna is a steerable antenna that can be electronically or mechanical steered to point to different directions (without moving the AP as a whole). The laser or lasers can be used to visualize the coverage area of the steerable antenna when pointing in different directions. Advantageously, a technician can use the laser or lasers to identify a location where, if steered, the antenna would provide the desired coverage area. The technician can then steer the antenna to point in that direction to provide the desired radio frequency (RF) coverage.

公开(公告)号：US20240291549A1

公开(公告)日：2024-08-29

申请号：US18656242

申请日：2024-05-06

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：US20240186697A1

公开(公告)日：2024-06-06

申请号：US18061421

申请日：2022-12-02

Applicant: Cisco Technology, Inc.

Inventor： Sivadeep R. KALAVAKURU ,  Navid POURRAMZANGANDJI ,  Ardalan ALIZADEH ,  Matthew A. SILVERMAN ,  Fred J. ANDERSON

IPC: H01Q3/36 ,  H01Q1/22 ,  H01Q1/48 ,  H01Q9/04

CPC classification number: H01Q3/36 ,  H01Q1/2291 ,  H01Q1/48 ,  H01Q9/045

Abstract: A wireless access point system is provided that includes at least one of a beamforming module adapted to set a resonant impedance value of impedance tuning elements of a first sub-array, wherein respective antenna elements of the first sub-array resonate at a first frequency, the beamforming module further adapted to set a non-resonant impedance value of the impedance tuning elements of a second sub-array for suppressing antenna element resonance at the first frequency, thereby configuring the array to provide a beamformed wireless communication signal; or a beamsteering module adapted to set the resonant impedance value for the impedance tuning elements of the first sub-array and set the non-resonant impedance value for the impedance tuning elements of the second sub-array for steering the beamformed wireless communication signal.

公开(公告)号：US20210282132A1

公开(公告)日：2021-09-09

申请号：US16810671

申请日：2020-03-05

Applicant: Cisco Technology, Inc.

Inventor： Pooya MONAJEMI ,  Matthew A. SILVERMAN ,  Gautam D. BHANAGE ,  Paul J. STAGER ,  Fred J. ANDERSON

IPC: H04W72/04

Abstract: Techniques for efficient network probing are provided. Coherence data is received from a plurality of access points (APs), where the coherence data indicates, for each respective AP of the plurality of APs, coherence bandwidth for a plurality of subcarriers. A mapping is generated indicating, for each of the plurality of APs, sets of subcarriers that can be interchangeably sounded. Two or more APs of the plurality of APs that can jointly sound a first subcarrier of the plurality of subcarriers are then identified based on the mapping, and the first subcarrier is allocated to the identified two or more APs for future sounding.

公开(公告)号：US20210135359A1

公开(公告)日：2021-05-06

申请号：US16875655

申请日：2020-05-15

Applicant: Cisco Technology, Inc.

Inventor： Fred J. ANDERSON ,  Danielle N. BANE ,  John M. BLOSCO ,  Paul J. STAGER ,  Daniel N. JOHNSON ,  Timothy A. FRANK ,  John M. SWARTZ

IPC: H01Q3/36 ,  H04B7/0413

Abstract: An electronically a steerable and switchable antenna array is provided that can produce a first beam with a first coverage range and a second beam with a second coverage range by selecting one of a first and a second beamwidth for both the first and second beams; in response to selecting the first beamwidth: switching signal inputs to narrow-beam antenna arrays; steering the first beam to one of a first positive, negative, or zero offset position; independently steering the second beam to one of a second positive, negative offset, or zero offset position; and transmitting signals received from the signal inputs via the first beam and the second beam; and in response to selecting the second beamwidth: switching signal inputs to wide-beam antenna arrays; and transmitting signals received from the signal inputs via the first beam and the second beam.