Patent ID: 8818399
Filing Date: 2014-08-26
Classification: G01S,H04B,H04W

Abstract:
1. In a wireless communication network including a first network node and a second network node, a method for enabling quality estimation of a measurement that is time based, the method comprising: obtaining, by said first network node, a reference timing measure for a signal received from the second network node, wherein the reference timing measure is obtained as a function of the distance between the first network node and the second network node; performing, by said first network node, a timing measurement based on said signal received from the second network node; determining, by said first network node, a value of a channel characteristic for said signal received from the second network node; computing, by said first network node, a timing measurement error based on the difference between the reference timing measure and the timing measurement; converting the determined value of the channel characteristic into a quality metric value for the timing measurement by performing a quality function, wherein the quality function reflects the relationship between the channel characteristic and the timing measurement error, and wherein the quality function is defined as one of a polynomial function, an exponential function and a linear function; and associating, by said first network node, the determined value of the channel characteristic and/or the quality metric value with the timing measurement, such that quality estimation of the timing measurement is enabled.