Adaptive Geolocation Quality Optimization In Wireless Networks

A method for geolocation of at least one wireless device logged in in a network, wherein the network comprises a number of wireless devices and a number of network nodes, wherein each network node is realized as a gateway and wherein each wireless device of the network interacts with at least one gateway, including following steps:

• (A) Initiating a geolocation procedure by one of the wireless devices of the network;
• (B) Determining a moment of time T0 within a specified time period, at which moment of time T0 a first uplink message is to be sent to at least one gateway from the wireless device;
• (C) Choosing a first frequency channel fx from at least one pre-determined frequency band using a random choice of the first frequency channel fx, wherein the random choice obeys the uniform probability distribution P(X), which first frequency channel is to be used to send the first uplink message to the at least one gateway from the wireless device;
• (D) Sending the first uplink message to the at least one gateway by means of the wireless device at the moment of time T0 and at the first frequency channel fX;
• (E) Receiving a downlink message from the at least one gateway by the wireless device, wherein the downlink message comprises relevant network parameters Z;
• (F) Determining by the wireless device of a pre-specified time delay dT, after which a second uplink message is to be sent to the at least one gateway from the wireless device after the wireless device has received the downlink message;
• (G) Specifying a conditional probability distribution PZ(Y|X) for choosing a second frequency channel fY, which second frequency channel fY is to be used to send the second uplink message to the at least one gateway from the wireless device, wherein the specification is made depending on the relevant network parameters Z and the first frequency channel fx;
• (H) Choosing a second frequency channel fY according to the conditional probability distribution PZ(Y|X);
• (I) Sending the second uplink message to the least one gateway by means of the wireless device after the time delay dT and at the second frequency channel fy;
• (J) Locating the wireless device based on the first and the second uplink messages, which first and second uplink messages were sent at the first frequency channel fx and the second frequency channel fy.