Method of processing received digitized signals and mobile radio communication terminal device

1. A method of processing a plurality of received digitized signals, the method comprising:

determining a plurality of cross-correlation coefficients for the plurality of received digitized signals;

forming a cross-correlation coefficient vector including the plurality of cross-correlation coefficients;

determining an evaluation value for at least some of the plurality of cross-correlation coefficients comprising:

pre-selecting a predefined number of cross-correlation coefficients from the cross-correlation coefficient vector and deleting the pre-selected number of cross-correlation coefficients from the cross-correlation coefficient vector;

after the pre-selection, determining an averaging value using at least one of the non-preselected cross-correlation coefficients of the cross-correlation coefficient vector; and

determining the evaluation value based on the respective value of the pre-selected cross-correlation coefficient and the averaging value;

selecting one or more cross-correlation coefficients based on the determined evaluation value; and

performing a scan based on the selected one or more cross-correlation coefficients.

2. The method of claim 1 ,

wherein performing further processing comprises performing a carrier aggregation process.

3. The method of claim 1 ,

wherein the cross-correlation coefficients are part of Enhanced Universal Mobile Telecommunications System Radio Access Absolute Radio Frequency Channel Numbers (EARFCNs).

4. The method of claim 1 ,

wherein the pre-selecting a predefined number of cross-correlation coefficients from the cross-correlation coefficient vector and deleting the pre-selected number of cross-correlation coefficients from the cross-correlation coefficient vector comprises performing an iterative process for a predefined number of iterations, comprising:

pre-selecting a cross-correlation coefficient from the cross-correlation coefficient vector which fulfills a predefined pre-selecting criterion;

deleting at least the pre-selected cross-correlation coefficient from the cross-correlation coefficient vector.

5. The method of claim 1 ,

wherein the determining the evaluation value comprises:

determining a ratio value by dividing the respective value of the pre-selected cross-correlation coefficient by the averaging value;

wherein the selecting the one or more cross-correlation coefficients out of the pre-selected cross-correlation coefficients comprises:

determining, as to whether the ratio value fulfills a predefined criterion; and selecting the one or more cross-correlation coefficients out of the pre-selected cross-correlation coefficients if the ratio value of the respective pre-selected cross-correlation coefficient fulfills the predefined criterion.

6. The method of claim 5 ,

wherein the determining, as to whether the ratio value fulfills a predefined criterion comprises determining, as to whether the ratio value exceeds a predefined threshold.

7. The method of claim 1 ,

wherein the plurality of cross-correlation coefficients are determined from a time-domain cross-correlation based frequency scanning method using the plurality of received digitized signals.

8. The method of claim 1 , wherein performing the scan further comprises identifying mobile radio cells and/or cell base stations.

9. A mobile radio communication terminal device, comprising:

a first circuit configured to determine a plurality of cross-correlation coefficients for a plurality of received digitized signals;

a second circuit configured to form a cross-correlation coefficient vector including the plurality of cross-correlation coefficients; a third circuit configured to determine an evaluation value for at least some of the plurality of cross-correlation coefficients;

wherein the third circuit is further configured to:

pre-select a predefined number of cross-correlation coefficients from the cross-correlation coefficient vector and delete the pre-selected number of cross-correlation coefficients from the cross-correlation coefficient vector;

after the pre-selection, determine an averaging value using at least one of the non-preselected cross-correlation coefficients of the cross-correlation coefficient vector; and

determine the evaluation values based on the respective value of the pre-selected cross-correlation coefficient and the averaging value;

a fourth circuit configured to select one or more cross-correlation coefficients based on the determined evaluation values; and

a fifth circuit configured to perform a scan based on the selected one or more cross-correlation coefficients.

10. The mobile radio communication terminal device of claim 9 ,

wherein the fifth circuit is configured to perform a carrier aggregation process.

11. The mobile radio communication terminal device of claim 9 ,

wherein the third circuit is further configured to perform an iterative process for a predefined number of iterations, comprising:

pre-selecting a cross-correlation coefficient from the cross-correlation coefficient vector which fulfills a predefined pre-selecting criterion;

deleting at least the pre-selected cross-correlation coefficient from the cross-correlation coefficient vector.

12. The mobile radio communication terminal device of claim 11 ,

wherein the third circuit is further configured to delete in at least one iteration of the iterative process at least one cross-correlation coefficient representing a neighboring frequency of the frequency of the respectively pre-selected cross-correlation coefficient.

13. The mobile radio communication terminal device of claim 9 ,

wherein the third circuit is configured to determine the evaluation value by determining a ratio value by dividing the respective value of the pre-selected cross-correlation coefficient by the averaging value;

wherein the fourth circuit is configured to select the one or more cross-correlation coefficients out of the pre-selected cross-correlation coefficients by determining, as to whether the ratio value fulfills a predefined criterion; and by selecting the one or more cross-correlation coefficients out of the pre-selected cross-correlation coefficients if the ratio value of the respective pre-selected cross-correlation coefficient fulfills the predefined criterion.

14. The mobile radio communication terminal device of claim 13 ,

wherein the third circuit is configured to determine, as to whether the ratio value fulfills a predefined criterion comprises by determining, as to whether the ratio value exceeds a predefined threshold.

15. A mobile radio communication terminal device, comprising:

a first circuit configured to determine a plurality of cross-correlation coefficients for a plurality of received digitized signals;

a second circuit configured to form a cross-correlation coefficient vector including the plurality of cross-correlation coefficients; a third circuit configured to determine an evaluation value for at least some of the plurality of cross-correlation coefficients;

wherein the third circuit is further configured to:

pre-select a predefined number of cross-correlation coefficients from the cross-correlation coefficient vector;

after the pre-selection, determine an averaging value using at least one of the non-preselected cross-correlation coefficients of the cross-correlation coefficient vector; and

determine the evaluation values based on the respective value of the pre-selected cross-correlation coefficient and the averaging value;

a fourth circuit configured to select a plurality of cross-correlation coefficients based on the determined evaluation values; and

a fifth circuit configured to perform a scan based on the selected plurality of cross-correlation coefficients.

16. The mobile radio communication terminal device of claim 15 ,

wherein the third circuit is configured to perform a carrier aggregation process.

17. The mobile radio communication terminal device of claim 15 ,

wherein the cross-correlation coefficients are part of Enhanced Universal Mobile Telecommunications System Radio Access Absolute Radio Frequency Channel Numbers (EARFCNs).