Characterisation of a wireless communications link
First Claim
1. A computer implemented method for characterising a wireless communications link between a transmitter and a receiver, comprising:
- obtaining first data contained in a signal transmitted from the transmitter to the receiver, the first data including a position of the transmitter;
obtaining second data including a position of the receiver;
obtaining a determination of transmitted power at an output of the transmitter;
obtaining a determination of received power at an input to the receiver, the received power being determined based on the signal containing the first data and received at the receiver;
determining a distance between the transmitter and the receiver, using said position of the transmitter and position of the receiver;
determining a modelled path loss based on the distance and a model of path losses;
generating at least one non line-of-sight metric to characterise the wireless link between the transmitter and the receiver based on the modelled path loss, the transmitted power and the received power; and
outputting the non line-of-sight metric to characterise the wireless communications link;
wherein at least one of the transmitter and the receiver is mobile.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method are described for characterizing a wireless communications link as line-of-sight (LOS) or non line-of-sight (NLOS). The method comprises receiving data (T) representing a position of a transmitter, receiving data (R) representing a position of a receiver, receiving a measure of transmitted power at an output of the transmitter (PT) and receiving a measure of received power at an input to the receiver (PR). An NLOS detector (400) generates at least one non line-of-sight metric to characterize the wireless link between the transmitter and the receiver based on the position of the receiver, the position of the transmitter, the transmitted power and the received power.
-
Citations
23 Claims
-
1. A computer implemented method for characterising a wireless communications link between a transmitter and a receiver, comprising:
-
obtaining first data contained in a signal transmitted from the transmitter to the receiver, the first data including a position of the transmitter; obtaining second data including a position of the receiver; obtaining a determination of transmitted power at an output of the transmitter; obtaining a determination of received power at an input to the receiver, the received power being determined based on the signal containing the first data and received at the receiver; determining a distance between the transmitter and the receiver, using said position of the transmitter and position of the receiver; determining a modelled path loss based on the distance and a model of path losses; generating at least one non line-of-sight metric to characterise the wireless link between the transmitter and the receiver based on the modelled path loss, the transmitted power and the received power; and outputting the non line-of-sight metric to characterise the wireless communications link; wherein at least one of the transmitter and the receiver is mobile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A computer implemented method for characterising a wireless communications link between a transmitter and a receiver, comprising:
-
obtaining data representing a distance between the transmitter and the receiver, the distance being calculated based on at least one of; first data contained in a signal transmitted from the transmitter and including a position of the transmitter; and second data obtained from the receiver; obtaining a determination of transmitted power at an output of the transmitter; obtaining a determination of received power at an input to the receiver, the received power being determined based on the signal containing the first data and received at the receiver; determining a modelled path loss based on the distance and a model of path losses; generating at least one non line-of-sight metric to characterise the wireless link between the transmitter and the receiver based on the modelled path loss, the transmitted power and the received power; and outputting the non line-of-sight metric to characterise the wireless communications link, wherein at least one of the transmitter and the receiver is mobile.
-
-
22. A non-transient computer program product comprising machine readable program code recorded on a machine readable recording medium, for controlling the operation of a data processing apparatus on which the program code executes to perform a method for characterising a wireless communications link between a transmitter and a receiver, comprising:
-
obtaining first data contained in a signal transmitted from the transmitter to the receiver, the first data including a position of the transmitter; obtaining second data including a position of the receiver; obtaining a determination of transmitted power at an output of the transmitter; obtaining a determination of received power at an input to the receiver, the received power being determined based on the signal containing the first data and received at the receiver; determining a distance between the transmitter and the receiver, using said position of the transmitter and position of the receiver; determining a modelled path loss based on the distance and a model of path losses; generating at least one non line-of-sight metric to characterise the wireless link between the transmitter and the receiver based on the modelled path loss, the transmitted power and the received power; and outputting the non line-of-sight metric to characterise the wireless communications link, wherein the transmitter is a mobile transmitter.
-
-
23. An apparatus for characterising a wireless communications link between a transmitter and a receiver, comprising:
-
a first input for obtaining first data contained in a signal transmitted from the transmitter to the receiver, the first data including a position of the transmitter; a second input for obtaining second data including a position of the receiver; a third input for obtaining a determination of transmitted power at an output of the transmitter; a fourth input for obtaining a determination of received power at an input to the receiver, the received power being determined based on the signal containing the first data and received at the receiver; a detector for; determining a distance between the transmitter and the receiver, using said position of the transmitter and position of the receiver; determining a modelled path loss based on the distance and a model of path losses; generating at least one non line-of-sight metric to characterise the wireless link between the transmitter and the receiver based on the modelled path loss, the transmitted power and the received power; and an output for outputting the non line-of-sight metric to characterise the wireless communications link, wherein the transmitter is a mobile transmitter.
-
Specification