DATA GROUP PAGING SERVICE

• US 20080057928A1
• Filed: 09/17/2007
• Published: 03/06/2008
• Est. Priority Date: 03/17/2005
• Status: Active Grant

• Current Assignee: T-Mobile International AG (Deutsche Telekom AG)
• Original Assignee: T-Mobile International AG (Deutsche Telekom AG)
• Inventors: Achter, Johannes, Bischinger, Kurt
• Granted Patent: US 9,509,734 B2
• Time in Patent Office: Days
• US Class Current: 455/416
• CPC Class Codes: H04L 12/1818 Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/4038 with floor control
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06

Abstract

A method for setting-up a data connection during a group voice service between several group members as a user of a mobile communication network. In a first method, functions of an IP multimedia subsystem (IMS) are used and a session initiation protocol (SIP) and a controlled data connection between an emitter, a terminal and one or several receivers is produced. Each user is allocated to a group voice service identity (VGCS-ID) an IMS group identity (IMS group ID) and is routed to an application server in the IMS with the aid of the user. A data group voice service is developed between the users. In a second method, each user is routed to the service nodes via GPRS using a group voice service identity (VGCS-ID) and an IP address of a service node, which acts as a relay and a data group voice service is carried out between the users.

Claims

1. A method for setting up a data connection in a Group Call Service between multiple group members as users of a mobile communication network, the method comprising:

employing functions of an IP Multimedia Subsystem (IMS);

establishing a data connection controlled by a Session Initiation Protocol (SIP) between a sender and one or more recipients;

assigning to each user, in addition to a Group Call Service identity (VGCS-ID), an IMS group identity (IMS Group ID); and

routing the user, with the aid of the IMS group identity, to an Application Server within the IMS which handles a Data Group Call Service between the users.

2. The method according to claim 1, wherein the Application Server establishes a connection to all group members with the aid of the mechanisms provided in the IMS, and ensures that it is always only one group member who can upload data, while all other group members receive this data.

3. The method according to claim 1, and further comprising transmitting by the client of the terminal, by means of an SIP message to the Application Server, a request from a user to send.

4. The method according to claim 2, and further comprising transmitting by the client of the terminal, by means of an SIP message to the Application Server, a request from a user to send.

5. The method according to claim 1, wherein the Application Server accesses data of a Group Call Register (GCR) in order to obtain information to set up the Data Group Call.

6. The method according to claim 2, wherein the Application Server accesses data of a Group Call Register in order to obtain information to set up the Data Group Call.

7. The method according to claim 1, wherein the transmission of the data to the recipients is effected over GPRS channels in the form of point-to-point connections.

8. The method according to claim 1, wherein the transmission of the data to the recipients is effected by utilizing a Multimedia Broadcast Multicast System.

9. The method according to claim 8, wherein the Application Server establishes a connection to the Broadcast Multicast Service Center (BM-SC) from where the data are further distributed in a multicast mode to the individual recipients.

10. The method according to claim 9, wherein the Application Server accesses data of a Group Call Register (GCR) in order to obtain information to set up the Data Group Call, and further comprising transmitting the information for a multicast mode through an interface between the BM-SC and the GCR or the Application Server.

22. A computer program comprising a program code which implements a method, executed on a computer, according to claim 1.

24. A computer program product, which comprises a program code executable on a computer to implement the method according to claim 1.

11. A method for setting up a data connection in a Group Call Service between multiple group members as users of a mobile communication network, the method comprising:

routing each user using a Group Call Service identity, VGCS-ID, and an IP address of a Service Node through GPRS to the Service Node which acts as a relay and handles a Data Group Call Service between the users.

12. The method according to claim 11, wherein data sent by a user are sent in common with the Group ID to the Service Node which, based on the sender IP address or sender IMSI, as well as the Group ID, cheeks the authentication and forwards the data to the recipients.

13. The method according to claim 11, wherein the Service Node requests information on the authentications and group members through an interface from a Group Call Register.

14. The method according to claim 11, wherein the transmission of data to the recipients is effected through dedicated channels in the form of point-to-point connections.

15. The method according to claim 11, wherein the transmission of data to the recipients is effected by utilizing a Multimedia Broadcast Multicast System.

16. The method according to claim 15, wherein the Service Node establishes a connection to a Broadcast/Multicast Service Center (BM-SC) from where the data are further distributed to the individual recipients in a multicast mode.

17. The method according to claim 14, wherein the Service Node requests information on the authentications and group members through an interface from a Group Call Register, and farther comprising transferring information for a multicast mode through an interface between the BM-SC and the GCR or the Application Server.

18. The method according to claim 11, and further comprising:

implementing with the aid of a token, sequential control of the Data Group Call, wherein a user who would like to obtain the right to send transmits a certain data set to the Service Node, after which this node responds with a certain data set, the token, which grants the user the right to send.

19. The method according to claim 18, wherein upon completion of the data transmission the sender again transmits the token to the Service Node, and the Service Node passes on the right to send to another user.

23. A computer program comprising a program code which implements a method, executed on a computer, according to claim 11.

25. A computer program product, which comprises a program code executable on a computer to implement the method according to claim 11.

20. A system for setting up a data connection in a Group Call Service between multiple group members as users of a mobile communication network, the system comprising:

an IP Multimedia Subsystem (IMS);

means for establishing a data connection controlled by a Session Initiation Protocol (SIP) between a sender and one or more recipients;

means for assigning an IMS Group Identity (IMS Group ID) to each user in addition to a Group Call Service Identity (VGCS-ID); and

an Application Server in the IMS to handle a Data Group Call Service between the users, wherein each user is routed to the Application Server with the aid of the IMS Group ID.

21. A system for setting up a data connection in a Group Call Service between multiple group members as users of a mobile communication network, the system comprising:

a Service Node;

means for assigning a Group Call Service Identity (VGCS-ID) and and IP address of the Service Node to each user;

means for routing each user through GPRS to the Service Node using the user'"'"'s Group Call Service Identity and the ID address of the Service Node, wherein the Service Node acts as a relay and handles a Data Group Call Service between the users.