Method, node and system for management of a mobile network

• US 9,264,919 B2
• Filed: 06/01/2011
• Issued: 02/16/2016
• Est. Priority Date: 06/01/2011
• Status: Expired due to Fees

• Current Assignee: Optis Cellular Technology LLC (Brevet Capital)
• Original Assignee: Optis Cellular Technology LLC (Brevet Capital)
• Inventors: Gunnarsson, Fredrik, Amirijoo, Mehdi, Moe, Johan
• Primary Examiner(s): Nguyen, Brian D
• Application Number:
  US14/122,645
• Publication Number:
  US 20140112178A1
• Time in Patent Office: 1,721 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 17/15 Performance testing
• CPC Class Codes: H04B 17/3911 Fading models or fading generators
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

The invention relates to a method for estimating performance in a mobile network, a method for generating a performance map, use of such methods, a network management system, and a network node in the mobile network for performing the methods. The exemplary method including receiving localized user equipment measurements from a user equipment in the mobile network, including the user equipment measurements in sets and determining at least one antenna characteristics model for the set of user equipment measurements. A path loss model is determined for the user equipment measurements. A localized performance measurement is determined by deducting an estimated antenna impact from the estimated path loss for the user equipment measurement. The operations are repeated to generate a spatial performance map for the mobile network, wherein updates of the spatial performance map are based on further user equipment measurements from the user equipment in the mobile network.

Claims

1. A method for estimating performance in a mobile network, the method comprising the operations of:

receiving localized, user equipment measurement from a user equipment (UE) in the mobile network;

incorporating the user equipment measurement in a set of user equipment measurements;

determining at least one antenna characteristics model for the set of user equipment measurements;

determining a path loss model for the set of user equipment measurements;

determining an applicable antenna characteristics model for the user equipment measurement and estimate antenna impact on the user equipment measurement;

estimating path loss related to the user equipment measurement;

deducting estimated antenna impact from the estimated path loss to determine a localized, instantaneous performance measurement; and

repeating the operations to generate a spatial performance map for the mobile network, wherein updates to the spatial performance map are based on further user equipment measurements from the user equipment in the mobile network.

2. The method according to claim 1, wherein the applicable antenna characteristics model is determined based on classifications of the UE measurements.

3. The method according to claim 2, wherein the localized, user equipment measurement includes signal strength measurements and an estimated position.

4. The method according to claim 3, wherein the localized user equipment measurement includes a time of measurement, and wherein the operations are repeated over a period of time so that the spatial performance map includes time-averaged performance measurements.

5. The method according to claim 4, wherein the path loss model is a joint antenna characteristics and propagation model, and wherein modeling parameters of the path loss model include antenna parameters and propagation parameters.

6. The method according to claim 5, wherein antenna parameters include an antenna beam direction, a relative antenna height difference, and an antenna site position.

7. The method according to claim 6, wherein the modeling parameters include a land-use classification.

8. The method according to claim 7, wherein the method is performed at a stationary network node in the mobile network.

9. The method according to claim 8, wherein a priori antenna pattern knowledge is considered when determining the antenna characteristics model.

10. The method according to claim 9, wherein the spatial performance map is a model of a true radio environment.

11. A method for generating a performance map for a mobile network, the method comprising the operations of:

determining at least one antenna characteristics model applicable in the mobile network;

determining a path loss model applicable in the mobile network;

determining an applicable antenna characteristics model for a localized user equipment measurement and estimate antenna impact on the user equipment measurement;

estimating path loss related to the user equipment measurement;

deducting estimated antenna impact from the estimated path loss to determine a localized, performance measurement; and

repeating the steps-operations to generate a performance map for the mobile network.

12. The method according to claim 11, wherein the method is performed for network management of the mobile network.

13. The method according to claim 11, wherein the performance map is combined with antenna configuration parameters in order to estimate path loss prior to effecting an antenna reconfiguration.

14. An apparatus for estimating performance in a mobile network, the apparatus comprising:

at least one controller operable to;

receive localized, user equipment measurement from a user equipment (UE) in the mobile network;

incorporate the user equipment measurement in a set of user equipment measurements;

determine at least one antenna characteristics model for the set of user equipment measurements;

determine a path loss model for the set of user equipment measurements;

determine an applicable antenna characteristics model for the user equipment measurement and estimate antenna impact on the user equipment measurement;

estimate path loss related to the user equipment measurement;

deduct estimated antenna impact from the estimated path loss to determine a localized, instantaneous performance measurement; and

repeat the operations to generate a spatial performance map for the mobile network, wherein updates to the spatial performance map are based on further user equipment measurements from the user equipment in the mobile network.

15. The apparatus of claim 14, wherein the applicable antenna characteristics model is determined based on classifications of the UE measurements.

16. The apparatus of claim 15, wherein the localized, user equipment measurement includes signal strength measurements and an estimated position.

17. The apparatus of claim 16, wherein the localized user equipment measurement includes a time of measurement, and wherein the operations are repeated over a period of time so that the spatial performance map includes time-averaged performance measurements.

18. An apparatus for generating a performance map for a mobile network, the apparatus comprising:

at least one controller operable to;

determine at least one antenna characteristics model applicable in the mobile network;

determine a path loss model applicable in the mobile network;

determine an applicable antenna characteristics model for a localized user equipment measurement and estimate antenna impact on the user equipment measurement;

estimate path loss related to the user equipment measurement;

deduct estimated antenna impact from the estimated path loss to determine a localized, performance measurement; and

repeat the steps-operations to generate a performance map for the mobile network.

19. The apparatus of claim 18, wherein the operations are performed for network management of the mobile network.

20. The apparatus of claim 18, wherein the performance map is combined with antenna configuration parameters in order to estimate path loss prior to effecting an antenna reconfiguration.