Client-based solution for seamless access to applications across networks

• US 20080077654A1
• Filed: 09/26/2006
• Published: 03/27/2008
• Est. Priority Date: 09/26/2006
• Status: Active Grant

• Current Assignee: Nextel Communications (Deutsche Telekom AG)
• Original Assignee: Nextel Communications (Deutsche Telekom AG)
• Inventors: Vu, Trin D., Choksi, Ojas T., Kuan, David, Kalathur, Ramesh, Stoler, Moshe, Bui, Hung
• Granted Patent: US 8,301,780 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1063 Application servers providing network services systems providing special services to telephonic subscribers H04M3/42
• CPC Class Codes: H04L 65/1073 Registration or de-registration
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, the presence of an added layer of intelligence effectively traverses and is agnostic to the various standards layers.

Claims

1. A method for registering an application client with a network application over a wireless network comprising:

detecting a registration event for an application client executing on a subscriber unit;

detecting availability of a standalone application platform for the network application;

initiating a standalone mode registration process for the application client in response to detecting the standalone application platform;

determining if an application availability notification has been received; and

initiating an integrated mode registration process for the application client in response to receiving the application availability notification.

2. The method of claim 1, wherein detecting the registration event comprises detecting the registration event where the registration event is selected from the list consisting of:

roaming to a different network and powering up the subscriber unit.

3. The method of claim 1, wherein the network application is a push-to-talk application.

4. The method of claim 1, further comprising querying a domain name server of said wireless network for an location server address.

5. The method of claim 4, wherein detecting availability of the standalone application platform is based on resolving the location server address.

6. The method of claim 5, wherein resolving the location server address indicates that the network application is not integrated with an IP Multimedia Subsystem.

7. The method of claim 4, wherein, prior to determining if the application availability notification has been received, the method further includes detecting that the location server address has not been resolved.

8. The method of claim 7, wherein an unresolved location server address indicates that the network application is integrated with an IP Multimedia Subsystem.

9. A wireless subscriber unit comprising:

a memory containing an application client and instruction sequences for registering the application client with a network application; and

a processor coupled to the memory, the processor to execute the instruction sequences to,

detect a registration event for the application client,

detect availability of a standalone application platform for the network application,

initiate a standalone mode registration process for the application client in response to detecting the standalone application platform,

determine if an application availability notification has been received, and

initiate an integrated mode registration process for the application client in response to receiving the application availability notification.

10. The subscriber unit of claim 9, wherein the registration event is selected from the list consisting of:

roaming to a different network and powering up the subscriber unit.

11. The subscriber unit of claim 9, wherein the network application is a push-to-talk application.

12. The subscriber unit of claim 9, wherein the processor is further to execute the instruction sequences to query a domain name server of said wireless network for an location server address.

13. The subscriber unit of claim 12, wherein the process is to detect the availability of the standalone application platform based on resolving the location server address.

14. The subscriber unit of claim 13, wherein resolving the location server address indicates that the network application is not integrated with an IP Multimedia Subsystem.

15. The subscriber unit of claim 12, wherein, prior to determining if the application availability notification has been received, the processor is further to execute the instruction sequences to detect that the location server address has not been resolved.

16. The subscriber unit of claim 15, wherein an unresolved location server address indicates that the network application is integrated with an IP Multimedia Subsystem.