Method And Arrangements In A Mobile Telecommunication Network
First Claim
1. An arrangement in a mobile telecommunication network for detection of a User Equipment (UE) transmitted signal, comprising:
- means for detecting the signal during the time t,ot, wherein said means comprises a correlator adapted for combined coherent and non-coherent correlation, wherein the length of the coherent correlation interval is L signal samples, the number of coherent correlation intervals is M and the coherent correlation results in a coherent correlation result for each of the coherent detection intervals M, and means for adding the coherent correlation results non-coherently, wherein selecting one of the length L of coherent detection interval and the total detection interval tat is based on at least one of the parameters cell size, UE speed and acceleration, number of participating Location Measurements Units (LMU) and a desired total false alarm rate.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a method and an arrangement in a mobile telecommunication network for detection of a UE transmitted signal. The arrangement comprises means for detecting the signal during the time ttot, wherein said means comprises a correlator adapted for combined coherent and non-coherent correlation, wherein the length of the coherent A correlation interval is L signal samples, the number of coherent correlation intervals is M and the coherent correlation results in a coherent correlation result for each of the coherent detection intervals M, and means for adding the coherent correlation results non-coherently. Further, the arrangement comprises means for selecting one of the length L of coherent detection interval and the total detection interval ttot based on at least one of the parameters cell size, UE speed and acceleration, number of participating Location Measurements Units and a desired total false alarm rate.
14 Citations
13 Claims
-
1. An arrangement in a mobile telecommunication network for detection of a User Equipment (UE) transmitted signal, comprising:
means for detecting the signal during the time t,ot, wherein said means comprises a correlator adapted for combined coherent and non-coherent correlation, wherein the length of the coherent correlation interval is L signal samples, the number of coherent correlation intervals is M and the coherent correlation results in a coherent correlation result for each of the coherent detection intervals M, and means for adding the coherent correlation results non-coherently, wherein selecting one of the length L of coherent detection interval and the total detection interval tat is based on at least one of the parameters cell size, UE speed and acceleration, number of participating Location Measurements Units (LMU) and a desired total false alarm rate. - View Dependent Claims (2, 3, 4, 5, 7, 8)
-
6. (canceled)
-
9. A method in a mobile telecommunication network for detection of a User Equipement (UE) transmitted signal, comprising the steps of:
detecting the signal during the time ttot, wherein said detection step comprises the steps of; combining a coherent and non-coherent correlation, wherein the length of the coherent correlation interval is L signal samples, the number of coherent correlation intervals is M and the coherent correlation results in a coherent correlation result for each of the coherent detection intervals M; and
,adding the coherent correlation results non-coherently, wherein the length L of coherent detection interval and the total detection interval ttot are based on at least one of the parameters cell size, UE speed and acceleration, number of participating Location Measurements Units (LMU) and a desired total false alarm rate. - View Dependent Claims (10, 11, 12)
-
13-18. -18. (canceled)
Specification