IP Library › Granted Patent US 11,470,675
Granted Patent B2
US 11,470,675 · App. 17/191,246 · Granted Oct 11, 2022

Call type selection based on failure probability

Inventors: Daniel C. Chisu (Franklin Park, IL); Si Chen (Chicago, IL)
Assignee: Motorola Mobility LLC
H04W76/19H04W4/029
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Quick Facts
Patent No.
US 11,470,675
App. No.
17/191,246
Granted
Oct 11, 2022
Kind
B2
Abstract

Techniques for call type selection based on failure probability are described and may be implemented via a wireless device to adapt to a variety of different wireless scenarios. Generally, the described techniques provide a wireless device with the ability to implement a wireless call event via different call types, e.g., different radio access technologies (RATs). For instance, when a first call type frequently experiences failure at a particular location, a second call type is utilized to initiate calls at the location, such as based on call records for historic call events.

Claims (49)

1. A wireless device comprising:

a wireless module including components to initiate and receive wireless calls; and

a connectivity module implemented to:

determine that a call is to be initiated at a physical location of the wireless device;

access a location record for the physical location, the location record identifying a probability that a call failure will occur using a first call type at the physical location;

identify, in response to the probability exceeding a threshold probability, a second successful call type available at the physical location; and

cause the wireless module to initiate the call via the second call type.

2. The wireless device as recited in claim 1 , wherein the location record is stored locally on the wireless device.

3. The wireless device as recited in claim 1 , wherein to access the location record comprises a query from the wireless device to a network service for the location record.

4. The wireless device as recited in claim 1 , wherein the first call type comprises a first radio access technology, and the second call type comprises a second, different radio access technology.

5. The wireless device as recited in claim 1 , wherein the first call type comprises a packet switched call type, and the second call type comprises a circuit switched call type.

6. The wireless device as recited in claim 1 , wherein the connectivity module is further implemented to:

receive an indication that a subsequent call is to be initiated at the physical location of the wireless device;

determine that a trigger event occurs indicating that the subsequent call is to be initiated via the first call type; and

cause a call attempt for the subsequent call to be initiated via the first call type.

7. The wireless device as recited in claim 6 , wherein the trigger event comprises one or more of an expiration of a timer for the location record, a call count threshold at the physical location, or an indication of a change in a wireless network attribute at the physical location.

8. The wireless device as recited in claim 6 , wherein the connectivity module is further implemented to update the location record based on a result of the call attempt for the subsequent call.

9. A method comprising:

receiving an indication that a call event on a wireless device initiated via a first call type experiences a failure event and that a remedial process is executed to restore the call event via a second call type;

determining a location of the wireless device;

generating a location record that identifies the location and indicates that the second call type is to be used for initiating a subsequent call event at the location; and

causing the location record to be available for enabling the subsequent call to be initiated utilizing the location record.

10. The method as recited in claim 9 , wherein:

the first call type comprises a packet switched call implemented via a first radio access technology, and the second call type comprises a circuit switched call implemented via a second radio access technology; or

the first call type comprises a packet switched call implemented via a first radio access technology and the second call type comprises a packet switched call implemented via a second radio access technology.

11. The method as recited in claim 9 , further comprising:

calculating a first probability score based on the failure event, the probability score indicating a probability that a future call failure will occur at the location using the first call type;

calculating a second probability score that indicates a probability of call success using the second call type, the second probability score being based at least on the call type for the second call type, a radio access technology for the second call type, the location of the wireless device, and time of day; and

generating the location record to include the first probability score and the second probability score for the location.

12. The method as recited in claim 11 , wherein said calculating the probability score is based on a number of call failures that occur at the location and a total number of call attempts at the location.

13. The method as recited in claim 9 , further comprising:

receiving an indication that a further subsequent call is to be initiated at the physical location of the wireless device;

determining that a trigger event occurs indicating that the further subsequent call is to be initiated via the first call type; and

causing a call attempt for the further subsequent call to be initiated via the first call type.

14. The method as recited in claim 13 , wherein the trigger event comprises one or more of an expiration of a timer for the location record, a call count threshold at the physical location, or an indication of a change in a wireless network attribute at the physical location.

15. The method as recited in claim 13 , further comprising updating the location record based on a result of the call attempt for the further subsequent call.

16. The method as recited in claim 15 , further comprising receiving an indication that the call attempt for the further subsequent call is successful utilizing the first call type, and wherein said updating the location record based on a result of the call attempt for the further subsequent call comprising updating a probability score for the physical location to indicate that the first call type is to be used for initiating a call at the physical location.

17. The method as recited in claim 9 , further comprising:

storing the location record at a network-based service; and

communicating the location record from the network-based service to the wireless device in response to an indicating that the subsequent call is to be initiated at the location of the wireless device.

18. A method comprising:

determining that a call is to be initiated at a physical location of a wireless device;

accessing a location record for the physical location, the location record identifying a probability that a call failure will occur using a first call type at the physical location;

identifying, in response to the probability exceeding a threshold probability, a second call type available at the physical location; and

causing the wireless device to initiate the call via the second call type.

19. The method as recited in claim 18 , wherein the first call type represents a default call type at the physical location utilizing a first radio access technology, and the second call type utilizes a second, different radio access technology.

20. The method as recited in claim 18 , further comprising:

receiving an indication of a call failure for a call using the first call type at the physical location; and

updating the location record by updating the probability that a call failure will occur using the first call type at the physical location.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2021
From: CHISU, DANIEL C.; CHEN, SI
To: MOTOROLA MOBILITY LLC
Reel/Frame 055549/0515 →
Continuity (1)
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