US 12,438,631 B2
Method for estimating distribution of wireless signal strength, selecting measuring locations to measure wireless signal strength and compensating estimated wireless signal strength
Chia-Shuo Yeh, Hsinchu (TW); Chien-Hsiang Chen, Hsinchu (TW); Jen-Hung Yang, Hsinchu (TW); and Shih-Fang Ao, Hsinchu (TW)
Assigned to ALPHA NETWORKS INC., Hsinchu (TW)
Filed by Alpha Networks Inc., Hsinchu (TW)
Filed on Jul. 20, 2023, as Appl. No. 18/224,271.
Claims priority of application No. 111129343 (TW), filed on Aug. 4, 2022.
Prior Publication US 2024/0048255 A1, Feb. 8, 2024
Int. Cl. H04B 17/382 (2015.01); H04B 17/27 (2015.01); H04B 17/318 (2015.01); H04W 64/00 (2009.01)
CPC H04B 17/382 (2015.01) [H04B 17/27 (2015.01); H04B 17/318 (2015.01); H04W 64/006 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for estimating distribution of wireless signal strength, which is adapted to estimating a signal strength distribution of a wireless signal emitted from a signal emitter within a specific area in accordance with a planar view of the specific area, wherein the planar view shows partition walls, doors and passage within the specific area, comprising:
deciding a plurality of estimation locations within the specific area;
performing an estimation operation for each of the estimation locations, wherein the estimation operation performed for a current estimation location, which is one of the estimation locations, comprises:
determining whether the current estimation location is within line of sight of the signal emitter;
performing a first estimation procedure for estimating an estimated signal strength in the current estimation location when the current estimation location is within line of sight of the signal emitter; and
performing a second estimation procedure for estimating the estimated signal strength in the current estimation location when the current estimation location is not within line of sight of the signal emitter; and
determining the signal strength distribution within the specific area in accordance with a plurality of the estimated signal strengths corresponding to the estimation locations;
wherein, the first estimation procedure is different from the second estimation procedure, and the first estimation procedure estimates the estimated signal strength in the current estimation location by considering at least two single-reflection paths starting from the signal emitter to the current estimation location.