Downlink grants in a multicarrier wireless communication system

1. A method for transmitting grants in a multicarrier wireless communications environment, comprising:

determining, by a base station, a grant information to a user device, wherein the grant information assigns resources for a carrier in a first frequency range;

selecting, by the base station, a control region on a carrier in a second frequency range in which to insert the grant information as a function of user device capabilities;

inserting the grant information in the selected control region; and

transmitting the grant information in the selected control region to the user device, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems.

2. The method of claim 1 , wherein inserting the grant information in the control region comprises applying independent assignments with cross-carrier operation.

3. The method of claim 1 , wherein inserting the grant information in the control region comprises:

concatenating a multicarrier grant information; and

inserting the multicarrier grant information in an identified control region.

4. The method of claim 1 , wherein inserting the grant information in the control region comprises:

segmenting the grant information over a control region associated with multiple carriers; and

concatenating control segments to form a multicarrier assignment.

5. The method of claim 1 , wherein transmitting the grant information in the selected control region comprises:

sending multicarrier grant information as one grant per carrier on a downlink carrier.

6. The method of claim 1 , wherein transmitting the grant information in the selected control region comprises:

sending multicarrier grant information as one grant carrying assignment for at least a subset of carriers on a downlink carrier that carriers a multicarrier grant.

7. The method of claim 1 , wherein the determining the grant information comprises analyzing at least one carrier system associated with the multicarrier wireless communications environment, wherein inserting the grant information in the control region comprises creating a grant with a common field for at least one of a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof.

8. The method of claim 1 , wherein the determining the grant information further comprises defining multicarrier Digital Carrier Interface information for a plurality of bandwidth cases, wherein each bandwidth case corresponds to a number of carriers.

9. The method of claim 8 , further comprises including, in the grant information, a scheduled carrier information.

10. The method of claim 1 , wherein the determining the grant information further comprises including common fields regardless of a number of assigned carriers and a number of carriers in the multicarrier wireless communications environment.

11. The method of claim 10 , further comprises adding additional bits that point to a location of a carrier specific Digital Carrier Interface.

12. The method of claim 1 , wherein the determining the grant information further comprises:

configuring the user device to be associated with a subset of carriers in the multicarrier wireless communications environment; and

providing a bitmap of the subset of carriers.

13. A wireless communications apparatus, comprising:

a memory that retains instructions related to determining, by a base station, a grant information to a mobile device, wherein the grant information assigns resources for a carrier in a first frequency range, selecting, by the base station, a control region on a carrier in a second frequency range in which to insert the grant information as a function of mobile device capabilities, inserting the grant information in the selected control region, and transmitting the grant information in the selected control region to the mobile device, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems; and

a processor, coupled to the memory, configured to execute the instructions retained in the memory.

14. The wireless communications apparatus of claim 13 , wherein the instructions related to inserting the grant information in the control region further applies independent assignments with cross-carrier operation.

15. The wireless communications apparatus of claim 13 , wherein the instructions related to transmitting the grant information in the selected control region further conveys multicarrier grant information as one grant per carrier on a downlink carrier.

16. The wireless communications apparatus of claim 13 , wherein the instructions related to transmitting the grant information in the selected control region further convey multicarrier grant information as one grant carrying assignment for at least a subset of carriers on a downlink carrier that carriers a multicarrier grant.

17. The wireless communications apparatus of claim 13 , wherein the instructions related to determining the grant information further analyzes at least one carrier system associated with a multicarrier wireless communications system, wherein the instructions related to inserting the grant information in the control region further creates a grant with a common field for at least one of a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof.

18. The wireless communications apparatus of claim 13 , wherein the instructions related to determining the grant information further defines multicarrier Digital Carrier Interface information for a plurality of bandwidth cases and includes, in the grant information, a scheduled carrier information, wherein each bandwidth case corresponds to a number of carriers.

19. The wireless communications apparatus of claim 13 , wherein the instructions related to determining the grant information further includes common fields regardless of a number of assigned carriers and a number of carriers in a multicarrier wireless communications system and adds additional bits that point to a location of a carrier specific Digital Carrier Interface.

20. The wireless communications apparatus of claim 13 , wherein the instructions related to determining the grant information configures the mobile device to be associated with a subset of carriers in a multicarrier wireless communications system and provides a bitmap of the subset of carriers.

21. A wireless communications apparatus that transmits grants in a multicarrier wireless communications system, comprising:

means for determining, by a base station, a grant information to a user device, wherein the grant information assigns resources for a carrier in a first frequency range;

means for selecting, by the base station, a control region on a carrier in a second frequency range in which to insert the grant information as a function of user device capabilities;

means for inserting the grant information in the selected control region; and

means for conveying the grant information in the selected control region to the user device, wherein the control region is a legacy control region or a non-legacy control region, wherein the non-legacy control region excludes a frequency range monitored by mobile devices configured for single carrier systems, and the legacy control region lies entirely within a frequency range monitored by mobile devices configured for single carrier systems.

22. The wireless communications apparatus of claim 21 , wherein the means for conveying the grant information in the selected control region conveys multicarrier grant information as one grant per carrier on a downlink carrier.

23. The wireless communications apparatus of claim 21 , wherein the means for conveying the grant information in the selected control region conveys multicarrier grant information as one grant carrying assignment for at least a subset of carriers on a downlink carrier that carriers a multicarrier grant.

24. The wireless communications apparatus of claim 21 , wherein the means for determining a grant information evaluates at least one carrier system associated with the multicarrier wireless communications system, wherein the means for inserting the grant information in the control region further creates a grant with a common field for at least one of a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof.

25. The wireless communications apparatus of claim 21 , wherein the means for determining the grant information defines multicarrier Digital Carrier Interface information for a plurality of bandwidth cases, wherein each bandwidth case corresponds to a number of carriers and includes, in the grant information, a scheduled carrier information.

26. The wireless communications apparatus of claim 21 , wherein the means for determining the grant information includes common fields regardless of a number of assigned carriers and a number of carriers in the multicarrier wireless communications system and inserts additional bits that point to a location of a carrier specific Digital Carrier Interface.

27. The wireless communications apparatus of claim 21 , wherein the means for determining a grant information configures the mobile device to be associated with a subset of carriers in the multicarrier wireless communications system and provides a bitmap of the subset of carriers.

28. A non-transitory computer-readable medium comprising:

a first set of codes for causing a computer to determine, by a base station, a grant information to a user device, wherein the grant information assigns resources for a carrier in a first frequency range;

a second set of codes for causing the computer to select, by the base station, a control region on a carrier in a second frequency range in which to insert the grant information as a function of user device capabilities, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems;

a third set of codes for causing the computer to insert the grant information in the selected control region; and

a fourth set of codes for causing the computer to communicate the grant information to the user device in the selected control region.

29. At least one processor configured to transmit grants in a multicarrier wireless communications system, comprising:

a first module for determining, by a base station, a grant information to a user device, wherein the grant information assigns resources for a carrier in a first frequency range;

a second module for selecting, by the base station, a control region on a carrier in a second frequency range in which to insert the grant information as a function of user device capabilities;

a third module for inserting the grant information in the selected control region; and

a fourth module for transmitting the grant information to the user device in the selected control region, wherein the control region is a non-legacy control region or a legacy control region per carrier, wherein the non-legacy control region excludes a frequency range monitored by mobile devices configured for single carrier systems, and the legacy control region lies entirely within a frequency range monitored by mobile devices configured for single carrier systems.

30. A method for receiving grants in a multicarrier wireless communications environment, comprising:

determining, at a user device, a location of a control region on a carrier in a first frequency range from a plurality of possible locations for the control region in one or more carriers for receiving grant information from a base station, wherein the grant information assigns resources for a carrier in a second frequency range, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems;

receiving, at the user device, the grant information from the base station at the location selected, by the base station, for insertion of the grant information as a function of capabilities of the user device; and selectively decoding, at the user device, the grant information.

31. The method of claim 30 , wherein selectively decoding the grant information comprises identifying independent assignments with cross-carrier operation.

32. The method of claim 30 , wherein receiving the grant information comprises receiving multicarrier grant information as one grant per carrier on a downlink carrier that carries a multicarrier grant.

33. The method of claim 30 , wherein selectively decoding the grant information comprising:

evaluating the grant information and at least one common field related to a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof; and

utilizing the at least one common field within the multicarrier wireless communications environment.

34. A wireless communications apparatus, comprising:

a memory that retains instructions related to evaluating a location of a control region on a carrier in a first frequency range from a plurality of possible locations for the control region in one or more carriers for receiving grant information from a base station, wherein the grant information assigns resources for a carrier in a second frequency range, receiving the grant information from the base station at the location selected, by the base station, for insertion of the grant information as a function of capabilities of the wireless communications apparatus, and selectively decoding, at the wireless communications apparatus, the grant information, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems; and

a processor, coupled to the memory, configured to execute the instructions retained in the memory.

35. The wireless communications apparatus of claim 34 , wherein the instructions related to selectively decoding the grant information further identifies independent assignments with cross-carrier operation.

36. The wireless communications apparatus of claim 34 , wherein the instructions related to receiving the grant information further receives multicarrier grant information as one grant for each of the one or more carriers on a downlink carrier that carries a multicarrier grant.

37. The wireless communications apparatus of claim 34 , wherein the instructions related to selectively decoding the grant information evaluates the grant information and at least one common field related to a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof and utilizes the at least one common field with a multicarrier wireless communications systems.

38. A wireless communications apparatus that receives grants in a multicarrier wireless communications system, comprising:

means for determining a location of a control region on a carrier in a first frequency range from a plurality of possible locations for the control region in one or more carriers for receiving grant information from a base station, wherein the grant information assigns resources for a carrier in a second frequency range;

means for receiving the grant information from the base station at the location selected, by the base station, for insertion of the grant information as a function of capabilities of-the wireless communications apparatus; and

means for selectively decoding, at the wireless communications apparatus, the grant information, wherein, the grant information is in a non-legacy control region or a legacy control region per carrier, the non-legacy control region excludes a frequency range monitored by mobile devices configured for single carrier systems, and the legacy control region lies entirely within a frequency range monitored by mobile devices configured for single carrier systems.

39. The wireless communications apparatus of claim 38 , wherein the means for selectively decoding the grant information identifies independent assignments with cross-carrier operation.

40. The wireless communications apparatus of claim 38 , wherein the means for receiving the grant information receives multicarrier grant information as one grant for each of the one or more carriers on a downlink carrier that carries a multicarrier grant.

41. The wireless communications apparatus of claim 38 , wherein the means for selectively decoding the grant information evaluates the grant information and at least one common field related to a cyclic redundancy check, a Hybrid Automatic Repeat Request process Identification, a flag, or combinations thereof and utilizes the at least one common field within the multicarrier wireless communications system.

42. A non-transitory computer-readable medium comprising:

a first set of codes for causing a computer to determine a location of a control region on a carrier in a first frequency range from a plurality of possible locations for the control region in a carrier for receiving grant information at a user device from a base station, wherein the grant information assigns resources for a carrier in a second frequency range, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems;

a second set of codes for causing the computer to receive the grant information from the base station at the location selected, by the base station, for insertion of the grant information as a function of capabilities of the user device; and

a third set of codes for causing the computer to decode the grant information from the base station.

43. At least one processor configured to receive grants in a multicarrier wireless communications system, comprising:

a first module for determining a location of a control region on a carrier in a first frequency range from a plurality of possible locations for the control region in a carrier for receiving grant information at a user device from a base station, wherein the grant information assigns resources for a carrier in a second frequency range, wherein the control region is a legacy control region or a non-legacy control region, wherein the legacy control region is located on control resources monitored by mobile devices configured for single carrier systems, and wherein the non-legacy control region excludes the control resources monitored by mobile devices configured for single carrier systems;

a second module for receiving the grant information from the base station at the location selected, by the base station, for insertion of the grant information as a function of capabilities of the user device; and

a third module for selectively decoding the grant information from the base station.