Timing of point-to-multipoint control channel information

• US 20060040655A1
• Filed: 08/11/2005
• Published: 02/23/2006
• Est. Priority Date: 08/12/2004
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Myeong-Cheol
• Application Number:
  US11/202,666
• Publication Number:
  US 20060040655A1
• Time in Patent Office: Days
• US Class Current: 455/426.100
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast

Abstract

The present invention is directed to notifying a mobile terminal, on a control channel MCCH and an indication channel MICH during a modification period, the presence of control information on the control channel MCCH during a subsequent modification period. Specifically, the mobile terminal subscribes to at least one point-to-multipoint service, receives first point-to-multipoint control information related to a first point-to-multipoint service on a point-to-multipoint control channel during a first modification period, and receives notification information on the point-to-multipoint control during the first modification period for indicating the presence of second point-to-multipoint control information related to a second point-to-multipoint service during a second modification period.

Claims

1. A method for receiving a point-to-multipoint service in a wireless communication system, the method comprising:

subscribing to at least one point-to-multipoint service;

receiving first point-to-multipoint control information related to a first point-to-multipoint service on a point-to-multipoint control channel during a first modification period; and

receiving notification information on the point-to-multipoint control channel during the first modification period for indicating the presence of second point-to-multipoint control information related to a second point-to-multipoint service during a second modification period.

2. The method of claim 1, wherein the point-to-multipoint control channel is not a point-to-multipoint indication channel.

3. The method of claim 1, further comprising receiving the notification information on a point-to-multipoint indication channel during the first modification period.

4. The method of claim 1, further comprising receiving the second point-to-multipoint control information on the point-to-multipoint control channel during the second modification period.

5. The method of claim 1, wherein the second modification period is immediately subsequent to the first modification period.

6. The method of claim 1, wherein the point-to-multipoint service is an MBMS service.

7. The method of claim 3, wherein the point-to-multipoint indication channel is MICH.

8. The method of claim 1, wherein the point-to-multipoint control channel is MCCH.

9. The method of claim 1, wherein the notification information received on the point-to-multipoint control channel comprises an information element that indicates whether a mobile terminal should continue reading the point-to-multipoint control channel during the second modification period.

10. The method of claim 9, wherein the information element is a CONTINUE MCCH READING information element.

11. The method of claim 9, wherein the information element is contained in a message transmitted periodically by a network to inform at least one mobile terminal about a change applicable to at least one point-to-multipoint service available in a current cell or neighboring cell.

12. The method of claim 11, wherein the message is a MBMS MODIFIED SERVICES INFORMATION message.

14. The method of claim 1, wherein the point-to-multipoint control channel is not a point-to-multipoint indication channel.

13. A method for transmitting a point-to-multipoint service in a wireless communication system, the method comprising:

transmitting first point-to-multipoint control information related to a first point-to-multipoint service on a point-to-multipoint control channel during a first modification period; and

transmitting notification information on the point-to-multipoint control channel during the first modification period for indicating the presence of second point-to-multipoint control information related to a second point-to-multipoint service during a second modification period.

15. The method of claim 13, further comprising transmitting the notification information on a point-to-multipoint indication channel during the first modification period.

16. The method of claim 13, further comprising transmitting the second point-to-multipoint control information on the point-to-multipoint control channel during the second modification period.

17. The method of claim 13, wherein the second modification period is immediately subsequent to the first modification period.

18. The method of claim 13, wherein the point-to-multipoint service is an MBMS service.

19. The method of claim 15, wherein the point-to-multipoint indication channel is MICH.

20. The method of claim 13, wherein the point-to-multipoint control channel is MCCH.

21. The method of claim 13, wherein the notification information transmitted on the point-to-multipoint control channel comprises an information element that indicates whether a mobile terminal should continue reading the point-to-multipoint control channel during the second modification period.

22. The method of claim 21, wherein the information element is a CONTINUE MCCH READING information element.

23. The method of claim 21, wherein the information element is contained in a message transmitted periodically by a network to inform at least one mobile terminal about a change applicable to at least one point-to-multipoint service available in a current cell or neighboring cell.

24. The method of claim 23, wherein the message is a MBMS MODIFIED SERVICES INFORMATION message.

25. The method of claim 13, wherein the notification information is transmitted periodically on the point-to-multipoint control channel during the entire first modification period.