Abstract: A method and system for determining locations of internet of things (IoT) tags are provided. The method includes receiving, during a predefined time window, packets from a plurality of gateways, wherein a received packets include at least sensing signals transmitted from the IoT tags; determining an affinity among the IoT tags based on the sensing signals; determining locations of IoT tags based on the determined affinity and the sensing signals, wherein a location of an IoT tag is a probability that an IoT tag is located in proximity to a gateway; and reporting the determined locations to a user terminal.

Abstract: A system and method for determining and monitoring occupancy level of items placed on a surface are provided. The system comprises receiving frequency words from tags placed on the surface, wherein each tag is configured to transmit a plurality of frequency words; extracting at least one data feature from the plurality of frequency words, wherein each data feature changes in response to an item placed in a proximity to a respective tag; determining, based on the extracted at least one data feature from a group of tags placed on the surface and based on at least one baseline, the occupancy level of items placed on the surface; and reporting the determined occupancy level of items.