US 11,991,538 B2
Wireless communication failure analysis device, wireless communication failure analysis method, and recording medium having wireless communication failure analysis program stored therein
Masaya Fujiwaka, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/419,175
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Dec. 6, 2019, PCT No. PCT/JP2019/047755
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2020/144987, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 2019-002687 (JP), filed on Jan. 10, 2019.
Prior Publication US 2022/0110006 A1, Apr. 7, 2022
Int. Cl. H04W 24/02 (2009.01); H04W 4/02 (2018.01); H04W 4/021 (2018.01); H04W 24/08 (2009.01)
CPC H04W 24/02 (2013.01) [H04W 4/021 (2013.01); H04W 4/027 (2013.01); H04W 24/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless communication failure analysis device comprising:
at least one memory configured to store instructions; and
at least one processor configured to execute the instructions to:
estimate a movement locus of a communication terminal device communicable with an access point installed at a known position, based on a measurement result indicating a communication state between the access point and the communication terminal device, which changes along with movement of the communication terminal device, and an estimation result relating to a presence situation of an obstacle that affects the communication state;
correct the movement locus, based on restriction information indicating a restriction content relating to movement of the communication terminal device;
generate the estimation result, based on the movement locus that is corrected and the measurement result; and
generate the restriction information in such a way as to gradually strengthen the restriction content until the restriction content satisfies a condition,
wherein estimation of the movement locus, correction of the movement locus based on the generated restriction information that is generated, and generation of the estimation result are repeatedly performed.