Point-to-Multipoint Service Communication

• US 20090016254A1
• Filed: 01/04/2007
• Published: 01/15/2009
• Est. Priority Date: 01/05/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sung-Jun, Lee, Young-Dae, Chun, Sung-Duck, Jung, Myung-Cheul
• Granted Patent: US 8,396,020 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 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

Among a plurality of point-to-multipoint control channels provided by a cell, a particular point-to-multipoint control channel is selected according to a preferred way of receiving the point-to-multipoint service. Control information related to the point-to-multipoint service is received through the selected point-to-multipoint control channel, and then the point-to-multipoint service is received according to the control information.

Claims

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

selecting a point-to-multipoint control channel among a plurality of point-to-multipoint control channels provided by a cell, wherein the point-to-multipoint control channel is selected according to a preferred way of receiving the point-to-multipoint service;

receiving control information related to the point-to-multipoint service through the selected point-to-multipoint control channel; and

receiving the point-to-multipoint service according to the control information.

2. The method of claim 1, wherein the preferred way of receiving the point-to-multipoint service comprises receiving the point-to-multipoint service in a single cell.

3. The method of claim 2, wherein the control information comprising scheduling information is received on an L1/L2 control channel.

4. The method of claim 2, wherein the point-to-multipoint service is received on a downlink shared channel.

5. The method of claim 2, further comprising utilizing a retransmission scheme based on uplink feedback.

6. The method of claim 2, wherein the control information comprising scheduling information is received from an eNode B.

7. The method of claim 1, wherein the preferred way of receiving the point-to-multipoint service comprises receiving the point-to-multipoint service in multiple cells.

8. The method of claim 7, wherein the control information comprising scheduling information is received on an MBMS control channel (MCCH).

9. The method of claim 7, wherein the point-to-multipoint service is received on a multicast channel using an L1 combining technique.

10. The method of claim 7, wherein the control information comprising scheduling information is received from a center node.

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

selecting a point-to-multipoint control channel among a plurality of point-to-multipoint control channels provided by a cell, wherein the point-to-multipoint control channel is selected according to an area of where the point-to-multipoint service is provided;

receiving control information related to the point-to-multipoint service through the selected point-to-multipoint control channel; and

receiving the point-to-multipoint service according to the control information.

12. The method of claim 11, wherein the point-to-multipoint service is provided to a single cell.

13. The method of claim 12, wherein the control information comprising scheduling information is received on an L1/L2 control channel.

14. The method of claim 12, wherein the point-to-multipoint service is received on a downlink shared channel.

15. The method of claim 12, further comprising utilizing a retransmission scheme based on uplink feedback.

16. The method of claim 12, wherein the control information comprising scheduling information is received from an eNode B.

17. The method of claim 11, wherein the point-to-multipoint service is provided to multiple cells.

18. The method of claim 17, wherein the control information comprising scheduling information is received on an MBMS control channel (MCCH).

19. The method of claim 17, wherein the point-to-multipoint service is received on a multicast channel using an L1 combining technique.

20. The method of claim 17, wherein the control information comprising scheduling information is received from a center node.

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

providing a plurality of point-to-multipoint control channels to a cell;

transmitting control information to a mobile terminal through a point-to-multipoint control channel selected among the plurality of point-to-multipoint control channels by the mobile terminal, wherein the point-to-multipoint control channel is selected according to a preferred way of transmitting the point-to-multipoint service; and

transmitting the point-to-multipoint service according to the control information.

22. The method of claim 21, wherein the preferred way of transmitting the point-to-multipoint service comprises transmitting the point-to-multipoint service to a single cell.

23. The method of claim 22, wherein the control information comprising scheduling information is transmitted on an L1/L2 control channel.

24. The method of claim 22, wherein the point-to-multipoint service is transmitted on a downlink shared channel.

25. The method of claim 22, further comprising utilizing a retransmission scheme based on uplink feedback.

26. The method of claim 22, wherein the control information comprising scheduling information is transmitted from an eNode B.

27. The method of claim 21, wherein the preferred way of transmitting the point-to-multipoint service comprises transmitting the point-to-multipoint service to multiple cells.

28. The method of claim 27, wherein the control information comprising scheduling information is transmitted on an MBMS control channel (MCCH).

29. The method of claim 27, wherein the point-to-multipoint service is transmitted on a multicast channel using an L1 combining technique.

30. The method of claim 27, wherein the control information comprising scheduling information is transmitted from a center node.

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

providing a plurality of point-to-multipoint control channels to a cell;

transmitting control information to a mobile terminal through a point-to-multipoint control channel selected among the plurality of point-to-multipoint control channels by the mobile terminal, wherein the point-to-multipoint control channel is selected according to an area of where the point-to-multipoint service is provided; and

transmitting the point-to-multipoint service according to the control information.

32. The method of claim 31, wherein the point-to-multipoint service is provided to a single cell.

33. The method of claim 32, wherein the control information comprising scheduling information is transmitted on an L1/L2 control channel.

34. The method of claim 32, wherein the point-to-multipoint service is transmitted on a downlink shared channel.

35. The method of claim 32, further comprising utilizing a retransmission scheme based on uplink feedback.

36. The method of claim 32, wherein the control information comprising scheduling information is transmitted from an eNode B.

37. The method of claim 31, wherein the point-to-multipoint service is provided to multiple cells.

38. The method of claim 37, wherein the control information comprising scheduling information is transmitted on an MBMS control channel (MCCH).

39. The method of claim 37, wherein the point-to-multipoint service is transmitted on a multicast channel using an L1 combining technique.

40. The method of claim 37, wherein the control information comprising scheduling information is transmitted from a center node.