METHOD AND APPARATUS FOR DELIVERING IPP2T (IP-PUSH-TO-TALK) WIRELESS LAN MOBILE RADIO SERVICE

• US 20100246552A1
• Filed: 06/14/2010
• Published: 09/30/2010
• Est. Priority Date: 08/03/2001
• Status: Active Grant

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Rice, Christopher W., Murray, John F., Miller, Robert Raymond II, Chow, Albert T.
• Granted Patent: US 8,750,169 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04L 67/55 Push-based network services
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A wireless subscriber terminal (ST) for use with IP push-to-talk (IPP2T) service using a wireless local area network (WLAN) operating in a plurality of modes, including a mobile terminal having an ability to communicate over the air to a wireless Access Point (AP), the mobile terminal further programmable to use conventional WLAN protocols, and a method for operating the wireless terminal are described.

Claims

1. A broadband access network terminal, comprising

a first interface for communicating with the plurality of access points, wherein the plurality of access points is communicating with a plurality of subscriber terminals via a wireless local area network;

and

a second interface for communicating with a broadband access network, wherein the broadband access network terminal supports an internet protocol push-to-talk service.

2. The broadband access network terminal of claim 1, wherein the broadband access network comprises a broadband wired access network, or a broadband wireless access network.

3. The broadband access network terminal of claim 1, further supports a voice over Internet protocol telephony service and a data mode of service.

4. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports information exchanges between the plurality of access points and a wireless local area network mobile radio service controller.

5. The broadband access network terminal of claim 1, wherein the information exchanges comprise:

voice, data and multimedia information.

6. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports signaling and control information exchanges between the plurality of access points and a wireless local area network mobile radio service controller.

7. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a mobility of one of the plurality of subscriber terminals, wherein the mobility comprises the one subscriber terminal traveling outside of a home area.

8. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports media stream mixing and multicasting of information associated with the internet protocol push-to-talk service.

9. The broadband access network terminal of claim 8, wherein the media stream mixing includes a digital speech coding process and a digital speech decoding process.

10. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports authentication, authorization and accounting services.

11. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a call feature application via a session initiation protocol or a media gateway control protocol.

12. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a radio frequency management process related to the internet protocol push-to-talk service.

13. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports operation, administration, maintenance and provisioning processes related to the internet protocol push-to-talk service.

14. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a security management process related to the internet protocol push-to-talk service.

15. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports inter-working functions with a plurality of additional broadband access network terminals to provide the Internet protocol push-to-talk service.

16. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a multicasting routing function.

17. The broadband access network terminal of claim 16, wherein the multicasting routing function is in accordance with at least one of:

a user datagram protocol, an internet protocol, an internet control message protocol or an internet group management protocol.

18. The broadband access network terminal of claim 1, wherein the broadband access network terminal filters internet protocol push-to-talk communications based on network internet protocol multicast addresses.

19. The broadband access network terminal of claim 1, wherein the broadband access network terminal supports a firewall that filters internet protocol multicast traffic.

20. A broadband access network terminal, comprising

a first interface means for communicating with the plurality of access points, wherein the plurality of access points is communicating with a plurality of subscriber terminals via a wireless local area network;

and

a second interface means for communicating with a broadband access network, wherein the broadband access network terminal supports an internet protocol push-to-talk service.