Push-To-Talk-Over-Cellular (Poc) Method

• US 20080102870A1
• Filed: 05/17/2005
• Published: 05/01/2008
• Est. Priority Date: 09/17/2004
• Status: Abandoned Application

• Current Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Original Assignee: Siemens AG
• Inventors: Gothard, Petr, Palecek, Martin, Klika, Petr, Sedlacek, Ivo
• Application Number:
  US11/663,255
• Publication Number:
  US 20080102870A1
• Time in Patent Office: Days
• US Class Current: 455/518
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

A method for communicating in a radio-communication system including an infrastructure network and user stations, wherein the infrastructure network enables the user stations to communicate by way of a so-called push-to-talk method wherein messages can be transmitted using a first type of recipient-identification information to a plurality of user stations and, using a second type of recipient-identification information, to individual user stations. In response to a request relating to specific recipient-identification information, information about the type of specific recipient-identification information is sent to a user station by the infrastructure network.

Claims

1-8. -8. (canceled)

9. A method for communicating in a radio-communication system with an infrastructure network and user stations, the method which comprises:

enabling the user stations to communicate by way of a push-to-talk method in the infrastructure network for transmitting messages to a plurality of user stations using a first type of recipient-identification information and transmitting messages to individual user stations using a second type of recipient-identification information; and

in response to a request relating to specific recipient-identification information, sending information about the type of specific recipient-identification information to a user station by the infrastructure network.

10. The method according to claim 9, which comprises automatically sending the request from the user station after a user has entered the specific recipient-identification information into the user station.

11. The method according to claim 9, which comprises, after receiving the information about the type of specific recipient-identification information, generating a message with the user station using the information and sending the message for initiating push-to-talk communication with the user or users indicated by the specific recipient-identification information.

12. The method according to claim 9, which comprises, after having dispatched the information about the type of specific recipient-identification information, receiving with the infrastructure network a message generated by the user station using the information for initiating push-to-talk communication with the user or users indicated by the specific recipient-identification information.

13. The method according to claim 9, which comprises:

in a case of recipient-identification information of the first type, producing the information about the type of specific recipient-identification information with the infrastructure network and sending the information to the user station; and

in a case of recipient-identification information of the second type, producing the information about the type of specific recipient-identification information with the user station of a respective user indicated by the specific recipient-identification information and sending the information to the user station over the infrastructure network.

14. The method according to claim 9, wherein the request is a SIP OPTIONS message standardized to Session Initiation Protocol.

15. A user station for communicating in a radio-communication system including an infrastructure network and further user stations, the user station comprising:

means for communicating with further user stations by way of a push-to-talk method, wherein messages are transmitted to a plurality of further user stations using a first type of recipient-identification information, and messages are transmitted to individual further user stations using a second type of recipient-identification information;

means for dispatching a request, relating to specific recipient-identification information, for information about a type of specific recipient-identification information; and

means for receiving and processing information about the type of specific recipient-identification information.

16. An infrastructure network for a radio-communication system, comprising:

means for enabling communication between user stations with of a push-to-talk method, wherein messages are transmitted to a plurality of user stations using a first type of recipient-identification information, and messages are transmitted to individual user stations using a second type of recipient-identification information;

means for receiving a request, relating to a specific recipient-identification information, from a user station for information about the type of specific recipient-identification information; and

means for dispatching information about the type of specific recipient-identification information to the user station.