Radio wave map providing device, radio wave map providing method, and non-transitory computer readable medium storing radio wave map providing program

A radio wave map providing method performed by a radio wave map providing device for receiving a radio wave map request from a radio wave map acquisition-utilization device mounted on a mobile object and transmitting necessary information, wherein:

• the radio wave map providing device includes a computer and a radio wave map storage configured to store a radio wave map including reference position information indicating a reference position and reference communication quality information indicating a communication quality at the reference position, and
• the radio wave map providing method is executed by the computer and includes:
• receiving, with a receiver connected to the computer, the radio wave map request including movement section information indicating a movement schedule section of the mobile object and request communication quality information indicating a requested communication quality;
• comparing, with the computer, in the reference communication quality information at the reference position in the movement schedule section,
• an information amount of reference communication quality information equal to or greater than the request communication quality information with
• an information amount of reference communication quality information equal to or less than the request communication quality information;
• in response to the comparing, generating, with the computer, a radio wave map reply based on provision reference communication quality information that is the reference communication quality information with a smaller information amount, as determined by the comparing, and provision reference position information that is reference position information corresponding to the reference communication quality information;
• and
• transmitting, with a transmitter connected to the computer, the radio wave map reply.

A non-transitory computer readable medium storing a radio wave map providing program executable by a processor for receiving a radio wave map request from a radio wave map acquisition-utilization device mounted on a mobile object and transmitting necessary information, the non-transitory computer readable medium storing a radio wave map including reference position information indicating a reference position and reference communication quality information indicating a communication quality at the reference position, wherein

• the radio wave map providing program comprises instructions configured to, when executed by a processor, cause the processor to:
• cause a receiver to receive the radio wave map request including movement section information indicating a movement schedule section of the mobile object and request communication quality information indicating a requested communication quality;
• compare, in the reference communication quality information at the reference position in the movement schedule section,
• an information amount of reference communication quality information equal to or greater than the request communication quality information with
• an information amount of reference communication quality information equal to or less than the request communication quality information;
• generate a radio wave map reply based on provision reference communication quality information that is the reference communication quality information with a smaller information amount and provision reference position information that is reference position information according to the reference communication quality information;
• and
• cause a transmitter to transmit the radio wave map reply.