Data-capable network prioritization with reduced delays in data service

• US 20050227719A1
• Filed: 11/12/2004
• Published: 10/13/2005
• Est. Priority Date: 11/12/2003
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Naqvi, Noushad, Gunaratnam, Jayasri, Phipps, Darcy Richard, Swann, Craig Ian Haight, Hind, Hugh, Taylor, Bryan, Nguyen, Bao Quoc
• Granted Patent: US 7,398,089 B2
• Time in Patent Office: Days
• US Class Current: 455/510
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

Reduced delays in data service offered by data-capable networks are provided. One illustrative method includes the steps of receiving and storing in memory a first timer value which is broadcasted by a wireless communication network for use in the mobile station; causing a request for data connectivity to be transmitted through the wireless network, and reattempting the request up to a plurality of times when data connectivity fails; after the one or more reattempted requests for data connectivity fail, activating a timer based on a second timer value which is less than the first timer value; and repeating the transmitting of requests for data connectivity after expiration of the timer.

Claims

1. A method of selecting a communication network with reduced delays in data service, the method comprising the steps of:

receiving and storing in memory a first timer value which is broadcasted by a wireless communication network for use in the mobile station;

causing a request for data connectivity to be transmitted through the wireless network, and reattempting the request at least one time when data connectivity fails;

after the at least one reattempted request for data connectivity fails, activating a timer based on a second timer value which is less than the first timer value; and

repeating the transmitting of requests for data connectivity after expiration of the timer.

2. The method of claim 1, further comprising:

testing whether the first timer value is greater than the second timer value;

wherein the step of activating the timer comprises activating the timer based on the second timer value if the second timer value is less than the first timer value; and

activating the timer based on the first timer value if the second timer value is greater than the first timer value.

3. The method of claim 1, wherein the first timer value is based on a periodic location update timer.

4. The method of claim 1, wherein the second timer value is between 5 and 30 minutes.

5. The method of claim 1, wherein the step of repeating comprises the further step of repeating the transmitting of requests through the wireless network.

6. The method of claim 1, wherein the wireless network comprises a first wireless network and the step of repeating comprises the further step of repeating the transmitting of requests through a second wireless network different from the first wireless network.

7. The method of claim 1, wherein the request for data connectivity comprises a General Packet Radio Service (GPRS) attach request.

8. The method of claim 1, wherein the request for data connectivity comprises a Routing Area Update (RAU).

9. A computer program product, comprising:

a storage medium;

computer instructions stored on the storage medium;

the computer instructions being executable by a processor for;

receiving and storing in memory a first timer value which is broadcasted by a wireless communication network for use in the mobile station;

causing a request for data connectivity to be transmitted through the wireless network, and reattempting the request at least one time when data connectivity fails;

after the at least one reattempted request for data connectivity fails, activating a timer based on a second timer value which is less than the first timer value; and

repeating the transmitting of requests for data connectivity after expiration of the timer.

10. The computer program product of claim 9, wherein the computer instructions are further executable for:

testing whether the first timer value is greater than the second timer value;

wherein the step of activating the timer comprises activating the timer based on the second timer value if the second timer value is less than the first timer value; and

activating the timer based on the first timer value if the second timer value is greater than the first timer value.

11. The computer program product of claim 9, wherein the first timer value is based on a periodic location update timer.

12. The computer program product of claim 9, wherein the second timer value is between 5 and 30 minutes.

13. The computer program product of claim 9, wherein the step of repeating comprises the further step of repeating the transmitting of requests through the wireless network.

14. The computer program product of claim 9, wherein the wireless network comprises a first wireless network and the step of repeating comprises the further step of repeating the transmitting of requests through a second wireless network different from the first wireless network.

15. The computer program product of claim 9, wherein the request for data connectivity comprises a General Packet Radio Service (GPRS) attach request.

16. The computer program product of claim 9, wherein the request for data connectivity comprises a Routing Area Update (RAU).

17. A mobile station, comprising:

one or more processors;

memory coupled to the one or more processors;

a wireless transceiver coupled to the one or more processors;

the one or more processors being operative to;

receive and store in memory a first timer value which is broadcasted by a wireless communication network for use in the mobile station;

cause a request for data connectivity to be transmitted through the wireless network, and reattempt the request at least one time when data connectivity fails;

after the at least one reattempted request for data connectivity fails, activate a timer based on a second timer value which is less than the first timer value; and

repeat the transmitting of requests for data connectivity after expiration of the timer.

18. The mobile station of claim 17, wherein the one or more processors are further operative to:

test whether the first timer value is greater than the second timer value;

wherein the activation of the timer comprises activation of the timer based on the second timer value if the second timer value is less than the first timer value; and

activate the timer based on the first timer value if the second timer value is greater than the first timer value.

19. The mobile station of claim 17, wherein the first timer value is based on a periodic location update timer.

20. The mobile station of claim 17, wherein the second timer value is between 5 and 30 minutes.

21. The mobile station of claim 17, wherein the repeating comprises repeating the transmitting of requests through the wireless network.

22. The mobile station of claim 17, wherein the wireless network comprises a first wireless network and the repeating comprises repeating the transmission of requests through a second wireless network different from the first wireless network.

23. The mobile station of claim 17, wherein the request for data connectivity comprises a General Packet Radio Service (GPRS) attach request.

24. The mobile station of claim 17, wherein the request for data connectivity comprises a Routing Area Update (RAU).

25. A communication system, comprising;

a first wireless communication network;

a second wireless communication network;

a mobile station operative to select one of the first wireless network and the second wireless network for communications;

the mobile station including;

one or more processors;

memory coupled to the one or more processors;

a wireless transceiver coupled to the one or more processors;

the one or more processors being operative to;

receive and store in memory a first timer value which is broadcasted by the first wireless network for use in the mobile station;

cause a request for data connectivity to be transmitted through the first wireless network, and reattempt the request at least one time when data connectivity fails;

after the at least one reattempted request for data connectivity fails, activate a timer based on a second timer value which is less than the first timer value; and

after expiration of the timer, repeat the transmitting of requests for data connectivity through either the first wireless network or the second wireless network.

26. The communication system of claim 25, wherein the one or more processors are further operative to:

test whether the first timer value is greater than the second timer value;

wherein the activation of the timer comprises activation of the timer based on the second timer value if the second timer value is less than the first timer value; and

activate the timer based on the first timer value if the second timer value is greater than the first timer value.

27. The communication system of claim 25, wherein the first timer value is based on a periodic location update timer.

28. The communication system of claim 25, wherein the second timer value is between 5 and 30 minutes.

29. The communication system of claim 25, wherein the repeating comprises repeating the transmitting of requests through the first wireless network.

30. The communication system of claim 25, wherein the repeating comprises repeating the transmission of requests through the second wireless network.

31. The communication system of claim 25, wherein the request for data connectivity comprises a General Packet Radio Service (GPRS) attach request.

32. The communication system of claim 25, wherein the request for data connectivity comprises a Routing Area Update (RAU).