Broadcast and multicast services in wireless communication systems

• US 8,229,423 B2
• Filed: 08/17/2007
• Issued: 07/24/2012
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sarkar, Sandip, Khandekar, Aamod, Kadous, Tamer
• Primary Examiner(s): Jackson, Blane J
• Application Number:
  US11/893,834
• Publication Number:
  US 20080056387A1
• Time in Patent Office: 1,803 Days
• Field of Search: 455/91, 455/120, 455/130, 455/458, 455/503, 455/422.1, 455/414.1, 455/434, 455/450, 455/500, 455/502, 455/509, 370/312, 370/390, 370/432
• US Class Current: 455/434
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

Methods and apparatus for assigning, identifying and controlling broadcast transmissions are disclosed. A broadcast flow is assigned to a broadcast logical channel of the physical resources of a wireless communication channel. A broadcast channel control message indicative of parameters of the broadcast logical channel is generated. Upon receipt, the broadcast channel control message is processed and used to accordingly process the received broadcast transmission.

Claims

1. A wireless communication device comprising:

a memory; and

a processor coupled with the memory, the processor configured to generate a broadcast channel control message indicative of parameters of broadcast transmissions in a wireless communication system, wherein the broadcast channel control message is generated for application to an ultra-frame.

2. The wireless communication device of claim 1, wherein the processor is further configured to generate the broadcast channel control message to include information indicative of an error correction code used for a broadcast transmission.

3. The wireless communication device of claim 1, wherein the ultra-frame comprises forty-eight super-frames.

4. The wireless communication device of claim 1, wherein the processor is further configured to generate the broadcast channel control message to include a scrambling sequence to be applied to broadcast transmissions related to the broadcast channel control message.

5. The wireless communication device of claim 1, wherein the processor is further configured to generate the broadcast channel control message to include physical layer resources over which broadcast transmissions related to the broadcast channel control message are to be transmitted.

6. The wireless communication device of claim 5, wherein the physical layer resources are non-contiguous frequency allocations.

7. The wireless communication device of claim 5, wherein the physical layer resources are contiguous nodes of a channel tree.

8. A wireless communication device comprising:

a memory; and

a processor coupled with the memory, the processor configured to assign at least one broadcast flow to a plurality of physical layer resources of a wireless communication channel, wherein the physical layer resources are contiguous nodes of a channel tree.

9. The wireless communication device of claim 8, wherein the physical layer resources are non-contiguous frequency allocations.

10. The wireless communication device as in one of claims 8, wherein the processor is further configured to assign a same modulation format to each physical layer resource.

11. The wireless communication device as in one of claims 8, wherein the processor is further configured to assign a same error correction code to each physical layer resource.

12. The wireless communication device of claim 11, wherein the processor is further configured to assign the error correction code based upon a type of application.

13. The wireless communication device of claim 11, wherein the processor is further configured to assign the outer code based upon a type of application.

14. The wireless communication device as in one of claims 8, wherein the processor is further configured to assign a same outer code to each physical layer resource.

15. A method comprising:

assigning at least one broadcast flow to a plurality of physical layer resources of a wireless communication channel; and

assigning at least one error correction code based upon a type of application to the at least one broadcast flow.

16. The method of claim 15, wherein assigning comprises assigning non-contiguous frequency allocations.

17. The method of claim 15, wherein assigning comprises assigning contiguous nodes of a channel tree.

18. The method of claim 15, further comprising assigning a same modulation format to each physical layer resource.

19. A method comprising:

allocating at least one broadcast flow to a broadcast logical channel; and

generating a broadcast channel control message indicative of parameters of broadcast logical channel, wherein the parameters include information indicative of a scrambling sequence to be applied to the at least one broadcast flow.

20. The method of claim 19, wherein generating the broadcast channel control message includes generating the broadcast channel control message to include information indicative of an error correction code used for a broadcast transmission.

21. The method of claim 19, wherein generating the broadcast channel control message includes generating the broadcast channel control message to include information indicative of physical layer resources over which the at least one broadcast flow is to be transmitted.

22. An apparatus comprising:

means for allocating at least one broadcast flow to a broadcast logical channel; and

means for generating a broadcast channel control message indicative of parameters of broadcast logical channel, wherein the parameters include information indicative of a scrambling sequence to be applied to the at least one broadcast flow.

23. The apparatus of claim 22, wherein the means for generating the broadcast channel control message includes means for generating the broadcast channel control message to include information indicative of an error correction code used for a broadcast transmission.

24. The apparatus of claim 22, wherein the means for generating the broadcast channel control message includes means for generating the broadcast channel control message to include information indicative of physical layer resources over which the at least one broadcast flow is to be transmitted.

25. An apparatus comprising:

means for assigning at least one broadcast flow to a plurality of physical lawyer resources of a wireless communication channel; and

means for assigning at least one error correction code based upon a type of application to the at least one broadcast flow.

26. The apparatus of claim 25, wherein the means for assigning comprises means for assigning non-contiguous frequency allocations.

27. The apparatus of claim 25, wherein the means for assigning comprises means for assigning contiguous nodes of a channel tree.

28. The apparatus of claim 25, further comprising means for assigning a same modulation format to each physical layer resource.

29. A machine readable medium comprising instructions for progressive channel switching, wherein the instruction upon execution cause a machine to:

assign at least one broadcast flow to a plurality of physical layer resources of a wireless communication channel; and

assign at least one error correction code based upon a type of application to the at least one broadcast flow.

30. The machine readable medium of claim 29, wherein assigning comprises assigning non-contiguous frequency allocations.

31. The machine readable medium of claim 29, wherein assigning comprises assigning contiguous nodes of a channel tree.

32. The machine readable medium of claim 29, wherein the instructions when executed further cause the machine to assign a same modulation format to each physical layer resource.

33. A machine readable medium comprising instructions for progressive channel switching, wherein the instruction upon execution cause a machine to:

allocate at least one broadcast flow to a broadcast logical channel; and

generate a broadcast channel control message indicative of parameters of a broadcast logical channel, wherein the parameters include information indicative of a scrambling sequence to be applied to the at least one broadcast flow.

34. The machine readable medium of claim 33, wherein generating the broadcast channel control message includes generating the broadcast channel control message to include information indicative of an error correction code used for a broadcast transmission.

35. The machine readable medium of claim 33, wherein generating the broadcast channel control message includes generating the broadcast channel control message to include information indicative of physical layer resources over which the at least one broadcast flow is to be transmitted.