Multimedia service providing method and radio mobile communication system

• US 7,606,226 B2
• Filed: 06/23/2003
• Issued: 10/20/2009
• Est. Priority Date: 06/22/2002
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young-Dae, Yi, Seung-June, Lee, So-Young
• Primary Examiner(s): Moore, Jr.; Michael J
• Application Number:
  US10/601,191
• Publication Number:
  US 20040057387A1
• Time in Patent Office: 2,311 Days
• Field of Search: None
• US Class Current: 370/390
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 12/185 with management of multicast group membership
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast

Abstract

A multimedia broadcast/multicast service (MBMS) in a universal mobile telecommunications system (UMTS) includes a UTRAN that provides an MBMS service. The MBMS service-related information is exchanged between the UTRAN and a terminal or between nodes in the UTRAN by using an MBMS identification so that a user group receiving MBMS data or a data of a specific MBMS service can be identified.

Claims

1. A method of providing a point-to-multipoint service in a radio communication system, the method comprising:

generating an identifier for indicating the point-to-multipoint service, wherein the identifier is configured by a radio resource control (RRC) layer;

adding the generated identifier to a data unit which is for the point-to-multipoint service in a medium access control (MAC) layer, wherein the identifier is included in a header of the data unit; and

transmitting the data unit to a mobile terminal via a Forward Access Channel (FACH) or a (Downlink Shared Channel) DSCH.

2. The method of claim 1, wherein the point-to-multipoint service is a multimedia broadcast/multicast service (MBMS).

3. The method of claim 1, wherein the identifier is a multimedia broadcast/multicast service (MBMS) radio network temporary identifier (RNTI).

4. The method of claim 1, wherein the identifier is generated from the radio resource control (RRC) layer.

5. The method of claim 4, wherein the RRC layer generates the identifier when a radio access bearer is established, and discards the identifier when the radio access bearer is released.

6. The method of claim 2, wherein the MBMS service is a multicast service.

7. The method of claim 1, wherein the data unit is a protocol data unit.

8. The method of claim 1, wherein the data unit includes an indicator indicating a type of the identifier.

9. The method of claim 1, wherein the identifier is managed by a controlling radio network controller (CRNC).

20. The method of claim 1, wherein the configured identifier is transferred from the RRC layer to the MAC layer.

22. The method of claim 1, wherein the header includes a target channel type field (TCTF).

24. The method of claim 1, wherein the identifier is used to identify the point-to-multipoint service among a plurality of point-to-multipoint services.

25. The method of claim 1, wherein the identifier is configured by assigning the identifier by the RRC layer.

10. A method of receiving a point-to-multipoint service in a radio communications system, the method comprising:

receiving a data unit including an identifier which indicates the point-to-multipoint service via a Forward Access Channel (FACH) or a (Down link Shared Channel) DSCH, wherein the identifier is included in a header of the data unit and the identifier was configured by a radio resource control (RRC) layer of a network;

identifying the data unit is for the point-to-multipoint service in a medium access control (MAC) layer using the identifier; and

transferring a point-to-multipoint service data of the data unit to an upper layer.

11. The method of claim 10, wherein the point-to-multipoint service is a multimedia broadcast/multicast service (MBMS).

12. The method of claim 10, wherein the identifier is a multimedia broadcast/multicast service (MBMS) radio network temporary identifier (RNTI).

13. The method of claim 10, wherein the identifier was generated from the radio resource control (RRC) layer in the network.

14. The method of claim 13, wherein the RRC layer generates the identifier when a radio access bearer is established, and discards the identifier when the radio access bearer is released.

15. The method of claim 11, wherein the MBMS service is a multicast service.

16. The method of claim 10, wherein the data unit is a protocol data unit.

17. The method of claim 10, wherein the data unit includes an indicator indicating a type of the identifier.

18. The method of claim 10, wherein the point-to-multipoint service data of the data unit to the upper layer is a header-removed data unit.

19. The method of claim 10, wherein the identifier is managed by a controlling radio network controller (CRNC).

21. The method of claim 10, wherein the configured identifier was transferred from a RRC layer of a mobile terminal to the MAC layer.

23. The method of claim 10, wherein the header includes a target channel type field (TCTF).

26. The method of claim 10, wherein the identifier was configured by assigning the identifier by the RRC layer of the network.

27. The method of claim 10, wherein the identifier is used to identify the point-to-multipoint service among a plurality of point-to-multipoint services.