Error correlation for wireless networks

• US 7,127,213 B2
• Filed: 04/23/2001
• Issued: 10/24/2006
• Est. Priority Date: 08/13/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Haymes, Charles Louis, Zumbo, Dominick Anthony
• Primary Examiner(s): Tran, CongVan
• Application Number:
  US09/840,617
• Publication Number:
  US 20010016489A1
• Time in Patent Office: 2,010 Days
• Field of Search: 455/67.1, 455/423, 455/550, 455/11.1, 455/522, 455/437, 455/427, 455/446, 455/456, 455/418, 455/421, 455/422, 455/67.11, 455/404.2, 455/456.1, 342/357.06, 342/357.07, 342/357.08, 342/357.09, 342/357.1, 342/357.12, 342/357.13, 342/357.14
• US Class Current: 455/67.11
• CPC Class Codes: G01C 21/3461 Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

Alternate methods, devices and systems are presented for providing service providers and/or end users of mobile stations to monitor and/or report regions with high error rates and/or dead zones. A protocol is provided such as to yield the error occurrence, error rate and/or the address of the end user. In some embodiments it also contains location information and time of day information. This information may be collected from the G.P.S., and/or all or a portion of users when there is a significant transmission difficulty and/or an abundance of errors. The collected data forms a database which is analyzed to generate coverage maps. This may include the dynamic aspects of the mobile network. In another aspect of this invention, each mobile station periodically compares its current location with the data base. The results of this comparison enables the mobile unit to anticipate connection problems. In still another aspect of the invention, the comparison is performed by the service provider which notifies the end user.

Claims

1. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for notifying a family of users d m a non-operating area of a wireless network, said method steps comprising:

providing a database of non-operating areas of the wireless network;

one of the users entering a trip route in a computing system in the one user'"'"'s vehicle;

said vehicle querying the database to download the map for dead zones in the trip route; and

comparing the trip route with the map for dead zones.

2. A program storage device readable by machine as recited in claim 1, said method steps further comprising recommending a changed route having a reduced area of dead zones.

3. A program storage device readable by machine as recited in claim 2, wherein the changed route is shown on a G.P.S. screen in the vehicle.

4. A program storage device readable by machine as recited in claim 1, said method steps further comprising querying the G.P.S. system and providing a warning signal to the user indicating that the vehicle is approaching a dead zone.

5. A program storage device readable by machine as recited in claim 1, wherein the warning signal includes an audible alarm.

6. A method for notifying a family of users of dead zones in a wireless network:

providing a database of non-operating areas of the wireless network forming dead zones;

one of said users entering a trip route into a system within a vehicle;

said vehicle querying the database to download a map showing any dead zones in the trip route; and

comparing the trip route with the map for dead zones.

7. A method as recited in claim 6, further comprising recommending a changed route having a reduced area of dead zones.

8. A method as recited in claim 7, wherein the changed route is shown on a G.P.S. screen in the vehicle.

9. A method as recited in claim 6, further comprising activating a warning signal to the one user when the vehicle is approaching a dead zone.

10. A method as recited in claim 9, wherein the warning signal includes an audible signal.

11. A method as recited in claim 6, further comprising the one user making a database query of network reception dead zones, and a network management station responding and determining if the one user is in or near a dead zone, and notifying the one user when the step of determining locates the user in or near a dead zone.

12. A method as recited in claim 11, wherein the network management station can inform the user of an appropriate step to take to maintain connectivity.