Misbehaving mobile station identification system and method, and a mobile station for use therewith

• US 6,223,032 B1
• Filed: 02/27/1998
• Issued: 04/24/2001
• Est. Priority Date: 02/27/1998
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Cuffaro, Angelo
• Primary Examiner(s): TO, DORIS HA
• Application Number:
  US09/031,783
• Time in Patent Office: 1,152 Days
• Field of Search: 455/423, 455/425, 455/67.1, 455/67.3, 455/67.7, 455/9, 455/8, 455/575, 455/550, 455/422
• US Class Current: 455/425
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

Malfunctioning or misbehaving mobile stations, that are capable nonetheless of continuing to communicate with a wireless communication system, are detected for the purposes of either shutting down misbehaving mobile stations or reporting misbehaving mobile stations so that corrective action can be taken. An error detector and interpreter detects in wireless communication signals received from a mobile station any breach of protocol errors indicative of faulty operation of the mobile station. A misbehavior analyzer analyzes the errors over time to determine whether the mobile station is misbehaving. Normal access of the mobile station to the wireless communication system is shut down or a message is sent to the subscriber in the event the mobile station is determined to be misbehaving. The mobile station also has a shutdown mode of operation, controllable by a message sent from the network, in which the mobile station remains idle and non-functional until repaired. The quality of service to subscribers using the wireless communication system is thus improved.

Claims

1. In a wireless communication system, a misbehaving mobile station identification system comprising:

error detection means for detecting failure of a mobile station to adhere to communications standard defined messaging protocols for accessing the wireless communications system that are indicative of faulty operation of said mobile station and for generating error signals; and

means for analyzing said error signals to determine whether said mobile station is misbehaving and to output a misbehaving identification signal identifying said mobile station as misbehaving if said mobile station is determined to be misbehaving.

2. The identification system as claimed in claim 1, further comprising operator notification means for providing an operator at least periodically with a display of said identification signal.

3. The identification system as claimed in claim 1, further comprising mobile station notification means for providing a subscriber using said mobile station with a message in response to said identification signal.

4. The identification system as claimed in claim 2, further comprising means for sending a shutdown command to said mobile station.

5. The identification system as claimed in claim 4, further comprising mobile station notification means for providing a subscriber using said mobile station with a message in response to an input from said operator, whereby an operator may forewarn said subscriber of an incoming shutdown command.

6. The identification system as claimed in claim 3, wherein said mobile station notification means further sends a misbehavior warning display command to said mobile station.

7. The identification system as claimed in claim 1, wherein said error detection means comprise data collector means associated with at least one base station and a mobile station switching center of said wireless communication system.

8. The identification system as claimed in claim 3, wherein said mobile notification means sends an SMS message to said mobile station.

9. A mobile station for use with a wireless communication system, said mobile station having a wireless communications module, a keypad and a display, said mobile station comprising:

means for accessing the wireless communication system preferably in accordance with certain communications standard defined messaging protocols; and

a misbehavior shutdown controller for shutting down said mobile station in response to a shutdown command received from said wireless communication system, the shutdown command indicative of wireless communication system detection of mobile station failure to adhere to the certain communications standard defined messaging protocols while making accesses.

10. The mobile station as claimed in claim 9, wherein said misbehavior shutdown controller causes said display to indicate a misbehavior warning message in response to a warning command signal received from said wireless communication system.

11. The mobile station as claimed in claim 9, wherein said misbehavior shutdown controller causes said display to display a service required message in response to a shutdown command received from said wireless communications system.

12. In a wireless communication system, a method of identifying a misbehaving mobile station, said method comprising the steps of:

gathering and storing information about mobile station messages sent to said wireless communication system in connection with making accesses to the wireless communication system;

detecting, from said information, failure of the mobile station to adhere to communications standard defined messaging protocols for accessing the wireless communications system that are indicative of faulty operation of said mobile station and generating error signals; and

analyzing said error signals to determine whether said mobile station is misbehaving and identifying said mobile station as misbehaving if said mobile station is determined to be misbehaving.

13. The method as claimed in claim 12, further comprising a step of shutting down said mobile station when identified as misbehaving.

14. In a wireless communication system, a misbehaving mobile station detection system comprising:

error detection means for detecting errors indicative of mobile station failure to adhere to communications standard defined messaging protocols for accessing the wireless communications system and for generating error signals; and

means for analyzing said error signals to determine whether said mobile station is misbehaving due to its disregard of the communications standard defined messaging protocols for system access and to output a misbehaving identification signal identifying said mobile station as misbehaving if said mobile station is determined to be misbehaving.

15. The control system as claimed in claim 14, further comprising operator notification means for providing an operator at least periodically with a display of said misbehaving identification signal.

16. The control system as claimed in claim 14, further comprising mobile station notification means for providing a subscriber using said mobile station with a message in response to said misbehaving identification signal.

17. The control system as claimed in claim 14, further comprising mobile station notification means for providing a subscriber using said mobile station with a message in response to an input from said operator, whereby an operator may forewarn said subscriber of a potential shutdown of the mobile station.

18. The identification system as claimed in claim 17, wherein said mobile station notification means further sends a misbehavior warning display command to said mobile station.

19. The identification system as claimed in claim 17, wherein said mobile station notification means sends an SMS message to said mobile station.

20. The identification system as claimed in claim 14, wherein said error detection means comprise data collector means associated with at least one base station and a mobile station switching center of said wireless communication system.

21. The identification system as claimed in claim 14, wherein the messaging protocols for system access relate to mobile station accessing the system for registration.

22. The identification system as claimed in claim 14, wherein the messaging protocols for system access relate to mobile station hand-off from cell to cell.

23. A method of identifying a misbehaving mobile station, said method comprising the steps of:

gathering information about mobile station adherence to communications standard defined messaging protocols for accessing a wireless communication system;

detecting, from said information, errors indicative of mobile station failure to adhere to communications standard defined messaging protocols for system access and generating error signals;

analyzing said error signals to determine whether said mobile station is misbehaving due to its disregard of the communications standard defined messaging protocols for system access; and

generating a misbehaving identification signal identifying said mobile station as misbehaving if said mobile station is determined to be misbehaving.

24. The method as claimed in claim 23, wherein the messaging protocols for system access relate to mobile station accessing the system for registration.