Methods and structures for improved monitoring and troubleshooting in wireless communication systems

• US 20060270400A1
• Filed: 05/31/2005
• Published: 11/30/2006
• Est. Priority Date: 05/31/2005
• Status: Abandoned Application

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: DaSilva, Victor M., Paulrajan, Vijayanand K.
• Application Number:
  US11/141,225
• Publication Number:
  US 20060270400A1
• Time in Patent Office: Days
• US Class Current: 455/423
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

Methods and systems for correlating a variety of sources monitored or test data gather from a wireless communication system to provide a more complete view of performance of, and problems arising in a wireless communication system. Features and aspects hereof combine and correlate gathered RF information associated with the wireless system with gathered network information associated with the network aspects of the wireless communication system. The gathered information may be correlated in time, and/or location, and/or other aspects. So correlating a variety of information sources including both RF information and network information provides a more complete view of performance and problems associated with a wireless communication system thus improving the ability of service providers and equipment providers to rapidly troubleshoot and isolate problems in a wireless communication system.

Claims

1. A wireless communication test system comprising:

a wireless monitoring device for gathering information regarding RF aspects of a wireless communication system;

a network data monitoring device for gathering information regarding network aspects of the wireless communication system; and

a system performance analysis tool coupled to the wireless monitoring device and coupled to the network data monitoring device and adapted to correlate information gathered by the wireless monitoring device and by the network monitoring device.

2. The system of claim 1 wherein the wireless monitoring device includes:

an autonomous probe for gathering RF information regarding RF aspects of the wireless communication system and for gathering location information regarding location of the autonomous probe correlated to the RF information.

3. The system of claim 1 wherein the network data monitoring device includes:

a per call mobile data gathering device for gathering network information regarding network exchanges relating to a particular call.

4. The system of claim 1 wherein the network data monitoring device includes:

a network data gathering device for gathering network information regarding performance and/or status of the network.

5. The system of claim 1 wherein the system performance analysis tool further comprises:

a rules-based analysis engine to identify problems in the wireless communication systems by applying rules to the correlated information.

6. The system of claim 5 wherein the rules-based analysis engine is operable to apply a rule to identify a root cause for dropped calls in a cellular telephony system.

7. The system of claim 6 wherein the rules-based analysis engine is operable to apply a rule selected from the group consisting of:

missing neighbor rule;

non-optimal parameter rule; and

handoff blocking rule.

8. A method for monitoring a wireless communication system comprising:

gathering RF information from an RF monitoring device wherein the RF information includes link information regarding an RF link between a wireless device and a base station;

gathering network information from a network monitoring device;

automatically correlating the network information with the RF information; and

reporting a problem in the wireless communication system based on the correlated information.

9. The method of claim 8 wherein the step of gathering RF information further comprises:

gathering RF information from an autonomous probe.

10. The method of claim 8 wherein the step of correlating includes:

correlating the RF information and the network information based on timing information associated with the RF information and with the network information.

11. The method of claim 8 wherein the step of correlating includes:

correlating the RF information and the network information based on location information associated with the RF information and with the network information.

12. The method of claim 11 wherein the step of correlating by location includes:

correlating by location using network sector information in the network information and using GPS location information in the RF information.

13. The method of claim 8 wherein the step of reporting a problem includes:

reporting a reason for a plurality of related dropped calls as due to one or more RF problems or as due to one or more network problems.

14. The method of claim 8 further comprising:

applying the correlated information to rules-based engine to identify the problem by evaluating heuristic rules applied to the correlated information.

15. The method of claim 14 wherein the step of applying further comprises applying a rule to identify a root cause for dropped calls in a cellular telephony system.

16. The method of claim 15 wherein the step of applying further comprises applying a rule selected from the group consisting of:

missing neighbor rule;

non-optimal parameter rule; and

handoff blocking rule.

17. A system comprising:

a wireless communication system adapted for RF communication with wireless communication devices and adapted for network data communication with a network; and

a wireless communication test system adapted to gather RF information regarding the RF communication and adapted for gathering network information regarding the network data communication and for correlating the RF information and the network information and adapted to identify a problem relating to the wireless communication system based on the correlated information and adapted to recommend solutions for the identified problem.

18. The system of claim 17 wherein the wireless communication test system includes:

a rules-based engine for applying predefined rules to the correlated information to identify the problem.

19. The system of claim 18 further comprising:

rules for identifying the problem as a cause for a plurality of dropped calls in a cellular telephony wireless communication system.

20. The system of claim 19 wherein the rules further comprise a selected rule from the group of rules consisting of:

missing neighbor rule;

non-optimal parameter rule; and

handoff blocking rule.