Discontinuously transmitting and receiving multimedia broadcast/multicast service data in mobile communication system

• US 20050190712A1
• Filed: 02/01/2005
• Published: 09/01/2005
• Est. Priority Date: 02/11/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Yi, Seung June
• Granted Patent: US 7,656,834 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04L 12/1881 with schedule organisation, e.g. priority, sequence management
• 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 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

Discontinuous transmission and reception of point-to-multipoint service data between a network and a mobile terminal is achieved by transmitting scheduling information from the network to the mobile terminal via a first common channel. The mobile terminal determines a time for receiving the service data in response to the scheduling information and discontinuously receives the service data through a second common channel.

Claims

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

receiving scheduling information from a network for discontinuously receiving point-to-multipoint service data, wherein the scheduling information is provided via a first common channel to a plurality of mobile terminals subscribing to the point-to-multipoint service;

determining a time for receiving the point-to-multipoint service data in response to the scheduling information; and

discontinuously receiving the point-to-multipoint service data in the mobile terminal through a second common channel.

2. The method of claim 1, wherein the first common channel and the second common channel are mapped onto a common physical channel.

3. The method of claim 2, wherein the scheduling information comprises information associated with another common traffic logical channel mapped to the common physical channel.

4. The method of claim 2, wherein the scheduling information comprises information associated with another point-to-multipoint service data transmitted through the common physical channel.

5. The method of claim 1, wherein the first common channel comprises a common control logical channel.

6. The method of claim 1, wherein the second common channel comprises a common traffic logical channel.

7. The method of claim 1, wherein the scheduling information is received periodically.

8. The method of claim 7, wherein the mobile terminal receives period information for receiving the scheduling information through a third common channel.

9. The method of claim 7, wherein the scheduling information is received during discontinued transmission of the point-to-multipoint service data.

10. The method of claim 1, wherein the scheduling information is received non-periodically.

11. The method of claim 10, wherein the mobile terminal receives information related to when the next scheduling information is transmitted through the first common channel.

12. The method of claim 10, wherein the scheduling information is received during discontinued transmission of the point-to-multipoint service data.

13. The method of claim 1, wherein the scheduling information comprises information associated with discontinued transmission of the point-to-multipoint service data.

14. The method of claim 13, wherein the mobile terminal suspends receiving the point-to-multipoint service data for a period associated with the scheduling information.

15. The method of claim 1, wherein the scheduling information comprises information associated with continued transmission of the point-to-multipoint service data.

16. The method of claim 15, wherein the mobile terminal receives the point-to-multipoint service data for a period associated with the scheduling information.

17. The method of claim 1, wherein the scheduling information further comprises information associated with a start time of the continued transmission of the point-to-multipoint service data.

18. The method of claim 17, wherein the mobile terminal receives the point-to-multipoint service data from the start time for a period associated with the scheduling information.

19. The method of claim 1, wherein the scheduling information comprises a service identifier for identifying the point-to-multipoint service.

20. The method of claim 1, wherein the scheduling information comprises an identifier for identifying the second common channel.

21. The method of claim 1, wherein the second common channel is configured in response to information transmitted through a third common channel.

22. The method of claim 1, further comprising:

selectively receiving the scheduling information according to a scheduling information mode; and

receiving a mode indicator for indicating the scheduling information mode;

wherein the scheduling information mode comprises at least one of;

receiving the scheduling information once during discontinued reception of the point-to-multipoint service data;

receiving the scheduling information periodically during discontinued reception of the point-to multipoint service data; and

receiving the scheduling information non-periodically during discontinued reception of the point-to-multipoint service data.

23. The method of claim 22, wherein the mode indicator is received through at least one of:

the first common channel;

a third common channel using a point-to-multipoint RRC message; and

a fourth common channel using system information.

24. A method for transmitting a point-to-multipoint service from a network of a mobile communication system, the method comprising:

transmitting scheduling information to a mobile terminal for discontinuously receiving point-to-multipoint service data, wherein the scheduling information is provided via a first common channel to a plurality of mobile terminals subscribing to the point-to-multipoint service; and

discontinuously transmitting the point-to-multipoint service data in the mobile terminal through a second common channel.

25. The method of claim 24, wherein the first common channel and the second common channel are mapped onto a common physical channel.

26. The method of claim 25, wherein the scheduling information comprises information associated with another common traffic logical channel mapped to the common physical channel.

27. The method of claim 25, wherein the scheduling information comprises information associated with another point-to-multipoint service data transmitted through the common physical channel.

28. The method of claim 24, wherein the first common channel comprises a common control logical channel.

29. The method of claim 24, wherein the second common channel comprises a common traffic logical channel.

30. The method of claim 24, wherein the scheduling information is transmitted periodically.

31. The method of claim 30, wherein the network transmits period information for transmitting the scheduling information through a third common channel.

32. The method of claim 30, wherein the scheduling information is transmitted during discontinued transmission of the point-to-multipoint service data.

33. The method of claim 24, wherein the scheduling information is transmitted non-periodically.

34. The method of claim 33, wherein the network transmits information related to when the next scheduling information is transmitted through the first common channel.

35. The method of claim 33, wherein the scheduling information is transmitted during discontinued transmission of the point-to-multipoint service data.

36. The method of claim 24, wherein the scheduling information comprises information associated with discontinued transmission of the point-to-multipoint service data.

37. The method of claim 36, wherein the network suspends transmitting the point-to-multipoint service data for a period associated with the scheduling information.

38. The method of claim 24, wherein the scheduling information comprises information associated with continued transmission of the point-to-multipoint service data.

39. The method of claim 38, wherein the network transmits the point-to-multipoint service data for a period associated with the scheduling information.

40. The method of claim 24, wherein the scheduling information further comprises information associated with a start time of the continued transmission of the point-to-multipoint service data.

41. The method of claim 40, wherein the network transmits the point-to-multipoint service data from the start time for a period associated with the scheduling information.

42. The method of claim 24, wherein the scheduling information comprises a service identifier for identifying the point-to-multipoint service.

43. The method of claim 24, wherein the scheduling information comprises an identifier for identifying the second common channel.

44. The method of claim 24, wherein the second common channel is configured in response to information transmitted through a third common channel.

45. The method of claim 24, further comprising:

transmitting the scheduling information according to a scheduling information mode; and

transmitting a mode indicator for indicating the scheduling information mode;

wherein the scheduling information mode comprises at least one of;

transmitting the scheduling information once during discontinued transmission of the point-to-multipoint service data;

transmitting the scheduling information periodically during discontinued transmission of the point-to multipoint service data; and

transmitting the scheduling information non-periodically during discontinued transmission of the point-to-multipoint service data.

46. The method of claim 45, wherein the mode indicator is transmitted through at least one of:

the first common channel;

a third common channel using a point-to-multipoint RRC message; and

a fourth common channel using system information.