US 12,267,120 B2
Three-dimensional visualization of Wi-Fi signal propagation through multiple floors
Salvatore Valenza, Pomy (CH); Samer Salam, Beirut (LB); Taha Hajar, Chavannes-Renens (CH); Nikodin Ristanovic, Lausanne (CH); Arun G. Khanna, Sunnyvale, CA (US); Matthew Aaron Silverman, Shaker Heights, OH (US); and James Florwick, Frederick, MD (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Sep. 25, 2023, as Appl. No. 18/473,688.
Application 18/473,688 is a continuation of application No. 17/481,916, filed on Sep. 22, 2021, granted, now 11,777,625.
Claims priority of provisional application 63/224,343, filed on Jul. 21, 2021.
Prior Publication US 2024/0014913 A1, Jan. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 17/391 (2015.01); G06T 15/06 (2011.01); G06T 15/08 (2011.01); H04W 28/08 (2023.01); H04W 28/086 (2023.01); H04W 36/00 (2009.01); H04W 72/29 (2023.01); H04W 84/12 (2009.01)
CPC H04B 17/391 (2015.01) [G06T 15/06 (2013.01); G06T 15/08 (2013.01); H04W 28/0865 (2023.05); H04W 36/0077 (2013.01); H04W 72/29 (2023.01); H04W 84/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for visualizing a Wi-Fi signal propagation pattern for a plurality of access points, comprising:
projecting a plurality of ray-paths in a plurality of directions in a 3-D space, wherein the plurality of ray-paths originate from each of the plurality of access points and emanate in a variety of X, Y, and Z planes;
determining whether the plurality of ray-paths interface with one or more materials defined in a building plan;
for each ray-path of the plurality of ray-paths that interface with the one or more materials defined in the building plan, segmenting the respective ray-path into contiguous segments of substantially uniform mediums; and
determining a Wi-Fi signal strength at points along the contiguous segments of the plurality of ray-paths, wherein the Wi-Fi signal strength degrades along the contiguous segments of the plurality of ray-paths as a function of distance.