Communication of point to multipoint service information in wireless communication system

• US 20050249141A1
• Filed: 04/18/2005
• Published: 11/10/2005
• Est. Priority Date: 04/19/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young Dae, Chun, Sung Duck, Yi, Seung June
• Granted Patent: US 7,546,132 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

The present invention relates to a method for transmitting and receiving information for configuring a point-to-multipoint control channel in a wireless communication system. A network generates configuration information for configuring a point-to-multipoint control channel (MCCH) and transmits the configuration information to a mobile terminal. The configuration information comprises at least one of a modification period, a repetition period, a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted, and a number of transmission time intervals (TTIs) the mobile terminal will read at each beginning of a repetition period.

Claims

1. A method for receiving control information in a wireless communication system, the method comprising:

receiving from a network configuration information for configuring a point-to-multipoint control channel; and

reading the point-to-multipoint control channel according to the configuration information;

wherein the configuration information comprises at least one of;

a modification period;

a repetition period;

a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted; and

a number of transmission time intervals (TTIs) a mobile terminal will read at each beginning of a repetition period.

2. The method of claim 1, wherein the configuration information is received from a radio network controller (RNC).

3. The method of claim 1, wherein the modification period is a time through which critical information is not changed.

4. The method of claim 1, wherein the repetition period is a time between successive repetition of the transmission of critical and non-critical information.

5. The method of claim 1, wherein the SFN-MCCH-Offset is an offset between a SFN 0 and a first transmission of critical and non-critical information.

6. The method of claim 5, wherein the SFN-MCCH-Offset is a multiple of 256 chips.

7. The method of claim 1, wherein the SFN-MCCH-Offset is a maximum time of a maximum modification period.

8. The method of claim 1, wherein the maximum SFN-MCCH-Offset is 4096 frames.

9. The method of claim 1, wherein the configuration information is transmitted to the mobile terminal periodically.

10. The method of claim 1, wherein the configuration information is received as a system information message on a logical channel BCCH.

11. The method of claim 1, wherein the configuration information is received as a point-to-multipoint control message on a logical channel MCCH.

12. The method of claim 1, wherein the configuration information is received on a dedicated channel.

13. The method of claim 1, wherein the configuration information is MCCH scheduling information.

14. The method of claim 1, wherein the configuration information is received in a system information message and a point-to-multipoint control message.

15. A method for transmitting control information in a wireless communication system, the method comprising:

generating configuration information for configuring a point-to-multipoint control channel; and

transmitting the configuration information to a mobile terminal;

wherein the configuration information comprises at least one of;

a modification period;

a repetition period;

a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted; and

a number of transmission time intervals (TTIs) the mobile terminal will read at each beginning of a repetition period.

16. The method of claim 15, wherein the configuration information is transmitted from a radio network controller (RNC).

17. The method of claim 15, wherein the modification period is a time through which critical information is not changed.

18. The method of claim 15, wherein the repetition period is a time between successive repetition of the transmission of critical and non-critical information.

19. The method of claim 15, wherein the SFN-MCCH-Offset is an offset between a SFN 0 and a first transmission of critical and non-critical information.

20. The method of claim 19, wherein the SFN-MCCH-Offset is a multiple of 256 chips.

21. The method of claim 15, wherein the SFN-MCCH-Offset is a maximum time of a maximum modification period.

22. The method of claim 15, wherein the maximum SFN-MCCH-Offset is 4096 frames.

23. The method of claim 15, wherein the configuration information is transmitted to the mobile terminal periodically.

24. The method of claim 15, wherein the configuration information is transmitted to the mobile terminal as a system information message on a logical channel BCCH.

25. The method of claim 15, wherein the configuration information is transmitted to the mobile terminal as a point-to-multipoint control message on a logical channel MCCH.

26. The method of claim 15, wherein the configuration information is transmitted to the mobile terminal on a dedicated channel.

27. The method of claim 15, wherein the configuration information is MCCH scheduling information.

28. The method of claim 15, wherein the configuration information is transmitted to the mobile terminal in a system information message and a point-to-multipoint control message.

29. An apparatus for receiving control information in a wireless communication system, the apparatus comprising:

means for receiving from a network configuration information for configuring a point-to-multipoint control channel; and

means for reading the point-to-multipoint control channel according to the configuration information;

wherein the configuration information comprises at least one of;

a modification period;

a repetition period;

a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted; and

a number of transmission time intervals (TTIs) a mobile terminal will read at each beginning of a repetition period.

30. The apparatus of claim 29, wherein the configuration information is received from a radio network controller (RNC).

31. The apparatus of claim 29, wherein the modification period is a time through which critical information is not changed.

32. The apparatus of claim 29, wherein the repetition period is a time between successive repetition of the transmission of critical and non-critical information.

33. The apparatus of claim 29, wherein the SFN-MCCH-Offset is an offset between a SFN 0 and a first transmission of critical and non-critical information.

34. The apparatus of claim 33, wherein the SFN-MCCH-Offset is a multiple of 256 chips.

35. The apparatus of claim 29, wherein the SFN-MCCH-Offset is a maximum time of a maximum modification period.

36. The apparatus of claim 29, wherein the maximum SFN-MCCH-Offset is 4096 frames.

37. The apparatus of claim 29, wherein the configuration information is transmitted to the mobile terminal periodically.

38. The apparatus of claim 29, wherein the configuration information is received as a system information message on a logical channel BCCH.

39. The apparatus of claim 29, wherein the configuration information is received as a point-to-multipoint control message on a logical channel MCCH.

40. The apparatus of claim 29, wherein the configuration information is received on a dedicated channel.

41. The apparatus of claim 29, wherein the configuration information is MCCH scheduling information.

42. The apparatus of claim 29, wherein the configuration information is received in a system information message and a point-to-multipoint control message.

43. An apparatus for transmitting control information in a wireless communication system, the apparatus comprising:

means for generating configuration information for configuring a point-to-multipoint control channel; and

means for transmitting the configuration information to a mobile terminal;

wherein the configuration information comprises at least one of;

a modification period;

a repetition period;

a SFN-MCCH-Offset comprising an offset between a transmission of a first frame of a modification period and a system frame number (SFN) of a cell in which the configuration information is transmitted; and

a number of transmission time intervals (TTIs) the mobile terminal will read at each beginning of a repetition period.

44. The apparatus of claim 43, wherein the configuration information is transmitted from a radio network controller (RNC).

45. The apparatus of claim 43, wherein the modification period is a time through which critical information is not changed.

46. The apparatus of claim 43, wherein the repetition period is a time between successive repetition of the transmission of critical and non-critical information.

47. The apparatus of claim 43, wherein the SFN-MCCH-Offset is an offset between a SFN 0 and a first transmission of critical and non-critical information.

48. The apparatus of claim 47, wherein the SFN-MCCH-Offset is a multiple of 256 chips.

49. The apparatus of claim 43, wherein the SFN-MCCH-Offset is a maximum time of a maximum modification period.

50. The apparatus of claim 49, wherein the maximum SFN-MCCH-Offset is 4096 frames.

51. The apparatus of claim 43, wherein the configuration information is transmitted to the mobile terminal periodically.

52. The apparatus of claim 43, wherein the configuration information is transmitted to the mobile terminal as a system information message on a logical channel BCCH.

53. The apparatus of claim 43, wherein the configuration information is transmitted to the mobile terminal as a point-to-multipoint control message on a logical channel MCCH.

54. The apparatus of claim 43, wherein the configuration information is transmitted to the mobile terminal on a dedicated channel.

55. The apparatus of claim 43, wherein the configuration information is MCCH scheduling information.

56. The apparatus of claim 43, wherein the configuration information is transmitted to the mobile terminal in a system information message and a point-to-multipoint control message.