Patent ID: 9462417
Filing Date: 2016-10-04
CPC Classification: G01S,H04L,H04W

Claim Text:
1. An information communication terminal comprising: a processor; and a memory coupled to the processor, wherein the memory comprises instructions which, when executed by the processor, cause the processor to: responsive to the information communication terminal being connected to a wired network and receiving from a management server a mode change instruction to switch to a communication mode of performing wireless communication directly with at least one other information communication terminal, switch the communication mode to a pseudo-access point (PAP) communication mode; broadcast a carrier wave comprising terminal identification information of the information communication terminal responsive to the information communication terminal being in the PAP communication mode; responsive to the information communication terminal not being connected to the wired network, measure an intensity of a carrier wave that is broadcasted by a second information communication terminal functioning in the PAP communication mode, wherein the carrier wave comprises terminal identification information of the second information communication terminal; transmit the measured intensity to the management server together with the terminal identification information of the second information communication terminal, wherein the management server estimates location information of the information communication terminal by using the location information of the second information communication terminal and the measured intensity and stores the estimated location information in association with the terminal identification information of the information communication terminal; and responsive to receiving from the management server a mode change instruction to switch to a communication mode of performing wireless communication via an access point connected to the wired network, switch the communication mode to a non-PAP communication mode.