Detecting degradation of wireless network performance

• US 8,675,514 B2
• Filed: 07/09/2010
• Issued: 03/18/2014
• Est. Priority Date: 07/09/2010
• Status: Active Grant

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors LLC (General Motors Company)
• Inventors: Myers, Robert J., Poulis, Dalia, Kado, Delano K., Krause, Kevin R., Laghrari, Fahd Z.
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): VU, HOANG-CHUONG Q
• Application Number:
  US12/833,552
• Publication Number:
  US 20120008509A1
• Time in Patent Office: 1,348 Days
• Field of Search: 370/241, 370/242, 370/245, 370/252, 455/99, 455/345, 455/575.9
• US Class Current: 370/252
• CPC Class Codes: H04W 24/06 Testing, supervising or monitoring using simulated traffic

Abstract

A system and method for monitoring wireless network performance that provides a real-time detection and identification of problem areas within a wireless carrier'"'"'s network. The method involves receiving and attempting to fulfill requests for vehicle services data sent via the wireless carrier system between vehicles and a call center or other remote facility. The success or failure of these attempts are recorded and associated with the geographic region in which the vehicle was located during the attempt, and this information for a multitude of vehicles is then analyzed in conjunction with other inputs and stored data to determine whether a particular geographic region is experiencing a wireless service outage or other degradation in performance.

Claims

1. A method of detecting degradation of wireless network performance in a geographic region, comprising the steps of:

receiving requests for content data associated with one or more vehicle services, the requests being associated with different vehicles each configured for wireless telecommunications over a wireless carrier system;

attempting wireless communications with each of the different vehicles via the wireless carrier system to fulfill the requests;

for each of at least some of the attempted communications, carrying out the following steps;

(i) determining a service delivery result indicating whether the requested content data was successfully delivered via the wireless carrier system; and

(ii) obtaining geographic data that is associated with the wireless carrier system and that is indicative of a geographic region in which the vehicle was situated during the attempted communication; and

determining, for a particular geographic region, a degradation in performance of the wireless carrier system based on a plurality of the service delivery results that are associated with that particular geographic region.

2. The method of claim 1, wherein the receiving step further comprises receiving the requests via calls placed from each of the vehicles to a call center, and wherein the attempting step further comprises each of the vehicles attempting a subsequent data call to a data services center to receive the requested content data from the data services center.

3. The method of claim 2, wherein the step of determining a service delivery result further comprises determining that the delivery of the requested content data was unsuccessful in response to receipt of a failure notification received via a call from the vehicle, and determining that the delivery was successful if no failure notification is received.

4. The method of claim 3, wherein the obtaining step further comprises obtaining a cellular system ID from one of the calls, wherein the cellular system ID is indicative of the geographic region in which the vehicle is situated.

5. The method of claim 4, wherein the step of determining a degradation in performance of the wireless carrier system further comprises, for the particular geographic region, determining from the service delivery results for a number of the different vehicles a relative amount of determined unsuccessful deliveries of the requested content data relative to a total number of attempted deliveries of the requested content data.

6. The method of claim 1, wherein, for at least one of the different vehicle, the receiving step further comprises receiving a request for content data associated with one or more vehicle services over a call between the vehicle and a remote facility, and the attempting step further comprises attempting to deliver the requested content data over that same call.

7. The method of claim 1, wherein the attempting step further comprises attempting to establish a packet data connection between each of the different vehicles and a server and to supply the requested content data over the established connection.

8. The method of claim 1, wherein the step of determining a service delivery result further comprises determining that an initial delivery of at least some of the requested content data failed, and indicating in the service delivery result the failure of the initial delivery.

9. The method of claim 1, further comprising the step of generating performance data for the particular geographic region using the service delivery results received for a plurality of different vehicles and updating the performance data in real time as new service delivery results are determined.

10. The method of claim 9, wherein the step of determining degradation in performance of the wireless carrier system further comprises determining the degradation in performance by processing the performance data in real time along with one or more other previously-stored cellular performance data items.

11. The method of claim 1, further comprising the step of alerting the wireless carrier system of the determined degradation in performance.

12. A method of detecting degradation of wireless network performance, comprising the steps of:

(a) carrying out the following steps for each of a plurality of different vehicles;

(a1) commanding the vehicle over a voice channel of a wireless carrier system to obtain content data associated with one or more vehicle services from a data services center;

(a2) attempting communication from the vehicle to the data services center, including establishment of a packetized data connection between the vehicle and data services center and transmission of the content data between the data services center and the vehicle over the packetized data connection;

(a3) determining at the vehicle whether the attempted communication between the vehicle and data services center was successful; and

(a4) for at least some of the plurality of the different vehicles, transmitting from the vehicle a notification concerning the determination; and

(b) determining a degradation in performance of the wireless carrier system using the notifications.

13. The method of claim 12, wherein step (a4) further comprises transmitting the notification if the attempted communication was determined to be unsuccessful and wherein the method further comprises the step of determining that the attempted communication was successful if no notification is received.

14. The method of claim 12, wherein the notification is indicative of the number of packets of data for which transmission of the packets over the packetized data connection at least initially failed.

15. The method of claim 12, wherein steps (a1) and (b) are carried out by a call center.

16. The method of claim 15, wherein the call center is the data services center.

17. The method of claim 12, wherein step (a4) further comprises placing a call from the vehicle to a call center over a voice channel of the wireless carrier system.

18. The method of claim 12, further comprising the step of determining, for at least the vehicles transmitting the notification, a geographic region associated with the location of the vehicle during the attempted communication and wherein step (b) further comprises determining a degradation in performance of a portion the wireless carrier system located in that geographic region using the notifications associated with that geographic region.