DISTANCE ESTIMATION

摘要

A method, a network access node and a computer program product are disclosed. The method of estimating a distance between at least one network access node and a network node of a wireless communications network, comprises: measuring total path losses between the at least one network access node and the network node on at least two different frequencies; determining frequency-dependent path losses of transmissions by the at least one network access node on the at least two different frequencies; and estimating a distance between the network node and the at least one network access node using the total path losses and the frequency-dependent path losses on the at least two different frequencies. By measuring the total path losses between network nodes on different frequencies and using frequency-dependent path losses determined for those frequencies, it is possible to estimate the distance between network nodes. This effectively removes the effects of the frequency-dependent path losses for the different frequencies in order to estimate the distance between network nodes.

主权项

1. A method of estimating a distance between at least one network access node and a network node of a wireless communications network, comprising:
measuring total path losses between said at least one network access node and said network node on at least two different frequencies; determining frequency-dependent path losses of transmissions by said at least one network access node on said at least two different frequencies; and estimating a distance between said network node and said at least one network access node using said total path losses and said frequency-dependent path losses on said at least two different frequencies.