Method and system for providing status information for broadcast/multicast service in a mobile communication system

• US 20050111394A1
• Filed: 09/16/2004
• Published: 05/26/2005
• Est. Priority Date: 09/16/2003
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Song, Jun-Hyuk, Chang, Yong, Kim, Dae-Gyun, Jung, Jung-Soo, Bae, Beom-Sik, Lim, Nae-Hyun
• Granted Patent: US 7,672,670 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• 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 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast

Abstract

In response to a BCMCS service request from a mobile station, a base station separately informs the mobile station whether the requested BCMCS service is available. Thus, the base station can include only broadcast channel information necessary for actual broadcast in a broadcasting overhead message, and if the BCMCS service is stopped or unavailable, the base station can order the mobile station to interrupt the BCMCS service, thereby reducing the load on system resources.

Claims

1. A method for providing a Broadcast/Multicast Service (BCMCS) from a base station to a mobile station in a mobile communication system including a BCMCS content server for storing a plurality of BCMCS contents, a BCMCS controller connected to the BCMCS content server, and at least one mobile station located in an area occupied by the base station, the mobile station being connected to the BCMCS controller and a packet data service node (PDSN) via the base station, the method comprising the steps of:

receiving a BCMCS registration message from the mobile station; and

transmitting a broadcast order message in response to the BCMCS registration message;

wherein the BCMCS registration message includes a BCMCS flow identifier (ID) indicating at least one BCMCS content, and the broadcast order message includes BCMCS unavailable information indicating that BCMCS content corresponding to the BCMCS flow ID is unavailable.

2. A method for providing information on a status of a broadcasting network from a base station to a mobile station in a mobile communication system providing at least one Broadcast/Multicast Service (BCMCS), the method comprising the steps of:

recognizing the status of the broadcasting network;

transmitting a broadcast order message including information related to the status, the status indicating a reason for the at least one, BCMCS not being received by the mobile station.

3. The method of claim 2, wherein the status information represents a BCMCS Parameter Reset Information indicating a change in BCMCS information, and the broadcast order message further includes at least one BCMCS flow ID of a corresponding BCMCS.

4. The method of claim 3, further comprising the steps of:

accessing, by the mobile station, a BCMCS controller and updating changed BCMCS information, after recognizing the change in status of the broadcasting network.

5. The method of claim 2, wherein the status information represents a BCMCS Stop Information indicating that a BCMCS corresponding to at least one BCMCS flow identifier (ID) has not transmitted, and the broadcast order message further includes the at least one BCMCS flow ID of the stopped BCMCS.

6. The method of claim 5, further comprising the steps of:

stopping, by the mobile station, receiving the BCMCS corresponding to the BCMCS flow ID of the stopped BCMCS after recognizing the status of the broadcasting network.

7. The method of claim 3, wherein the status information represents a BCMCS Unavailable Information indicating that a BCMCS corresponding to at least one BCMCS flow identifier (ID) is not available, and the broadcast order message further includes the at least one BCMCS flow ID of the unavailable BCMCS service.

8. The method of claim 7, further comprising the step of transmitting, by the mobile station, a registration message including a BCMCS flow ID of a desired BCMCS to the base station, before the recognizing step of the base station.

9. The method of claim 7, further comprising the step of:

accessing, by the mobile station, a BCMCS controller and updating BCMCS information after recognizing the status of the broadcasting network.

10. The method of claim 2, wherein the status information represents a Broadcast Protocol Attribute Update Information indicating a change in a configuration attribute value used for a BCMCS protocol.

11. The method of claim 10, further comprising the step of:

updating, by the mobile station, the configuration attribute value through a session configuration with the base station after recognizing the status of the broadcasting network.

12. The method of claim 10, further comprising the step of:

updating, by the mobile station, the configuration attribute value using an attribute update protocol after recognizing the status of the broadcasting network.

13. The method of claim 11, wherein the configuration attribute value includes an authentication key value for BCMCS authentication on the mobile station.

14. The method of claim 2, wherein the mobile communication system is a high-rate packet data (HRPD) system.

15. The method of claim 14, wherein the broadcast order message is transmitted over any one of a forward traffic channel and a forward control channel.

16. The method of claim 14, wherein the broadcast order message includes a message ID field, an information field indicating the status of the broadcasting network, and a BCMCS flow ID field of a corresponding BCMC service.

17. The method of claim 2, wherein the mobile communication system is a CDMA 2000 1×

system.

18. The method of claim 17, wherein the broadcast order message is transmitted over any one of a forward dedicated signaling logical channel (F-DSCH) and a forward common signaling logical channel (F-CSCH).

19. The method of claim 2, wherein the broadcast order message is a message transmitted on a broadcast basis.

20. The method of claim 2, wherein the broadcast order message is a message transmitted on a unicast basis.

21. The method of claim 2, wherein the mobile station sets up a traffic channel to the base station if it is determined from the received broadcast order message that an update of BCMCS information is required.

22. The method of claim 2, further comprising the step of:

transmitting by the base station a broadcast system parameters message (BSPM) including only BCMCS flow IDs of the currently-transmitted BCMCSs, to the mobile station.

23. A mobile communication system for providing information on a status of a broadcasting network from a base station to a mobile station while providing a Broadcast/Multicast Service (BCMCS), the system comprising:

the base station for transmitting a broadcast order message including information indicating the status, the status indicating a reason for at least one BCMCS not being received by the mobile station, upon recognizing the status of the broadcasting network; and

the mobile station for receiving the broadcast order message while using a BCMCS, and recognizing the status of the broadcasting network.

24. The mobile communication system of claim 23, wherein the status information represents a BCMCS Stop Indicating Information that a BCMC corresponding to at least one BCMCS flow identifier (ID) has not transmitted.

25. The mobile communication system of claim 23, wherein if the mobile station sends a request for transmission of a desired BCMCS to the base station and the base station does not support the corresponding BCMCS, the status information represents a BCMCS Unavailable Information indicating the unavailability of the corresponding BCMCS.

26. The mobile communication system of claim 23, wherein the status information represents a Broadcast Protocol Attribute Update Information indicating a change in a configuration attribute value used for a BCMCS protocol.

27. The mobile communication system of claim 26, wherein the configuration attribute value includes an authentication key value for BCMCS authentication on the mobile station.