Spectrum interpretation in a heterogenous network
Certain aspects of the present disclosure provide for the application of extension carriers and carrier segments in the context of heterogeneous networks. As described herein, different parts of the spectrum may be interpreted differently by different type of nodes.
1. A method for wireless communications in a wireless communications network, comprising:
allocating, to a first user equipment in a first cell of a first power class, resources of a first component carrier for use as a physical downlink shared channel; and
allocating resources of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the resources of the first portion of the second component carrier do not overlap with resources of a second portion of the second component carrier allocated as a control region for one or more second user equipments in the second cell, and wherein paging is prohibited in the extension.
2. The method of claim 1 , wherein the resources of the first component carrier and the resources of the first portion of the second component carrier are allocated for use by different user equipments.
3. The method of claim 1 , wherein the wireless communications network comprises a heterogeneous network and the first and second cells comprise cells of different power class types.
4. The method of claim 1 , wherein the first portion of second component carrier comprises a carrier segment adjacent the first component carrier.
5. The method of claim 1 , wherein the second component carrier comprises an extension carrier.
6. The method of claim 1 , further comprising conveying, to the first user equipment, an indication of a location of the first portion of the second component carrier.
7. The method of claim 6 , wherein conveying the indication comprises:
sending, using the first component carrier, the first user equipment an indication of a starting symbol of the first portion of the second component carrier.
8. The method of claim 7 , wherein the indication of the starting symbol is determined based on a size of the second portion of the second component carrier used as a control region for one or more second user equipments.
9. The method of claim 1 , wherein the first portion of the second component carrier begins at a fixed location known to the first user equipment.
10. The method of claim 1 , wherein:
the first user equipment comprises a user equipment capable of communicating with a first or later version of a wireless communications standard; and
the second user equipment comprises a user equipment capable of communicating with a second version of the standard earlier than the first version.
11. The method of claim 1 , wherein:
the second cell comprises a lower power class type than the first cell.
12. The method of claim 11 , wherein:
the second component carrier comprises at least one of an extension carrier or a carrier segment.
13. A method for wireless communications in a wireless communications network, comprising:
receiving, from a base station of a first cell, allocation of resources of a first component carrier for use as a physical downlink shared channel; and
receiving, from the base station, allocation of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the first portion of the second component carrier does not overlap with a second portion of the second component carrier allocated as a control region for one or more user equipments of the second cell, and wherein paging is prohibited in the extension.
14. The method of claim 13 , wherein the resources of the first component carrier and the resources of the first portion of the second component carrier are allocated for use by different user equipments.
15. The method of claim 13 , wherein the wireless communications network comprises a heterogeneous network and the first and second cells comprise cells of different power class types.
16. The method of claim 13 , wherein the first portion of second component carrier comprises a carrier segment adjacent the first component carrier.
17. The method of claim 13 , wherein the second component carrier comprises an extension carrier.
18. The method of claim 13 , further comprising receiving, from the base station, an indication of a location of the first portion of the second component carrier.
19. The method of claim 18 , wherein receiving the indication comprises:
receiving, using the first component carrier, an indication of a starting symbol of the first portion of the second component carrier.
20. The method of claim 19 , wherein the indication of the starting symbol is determined based on a size of the second portion of the second component carrier used as a control region for one or more user equipments.
21. The method of claim 13 , wherein the first portion of the second component carrier begins at a fixed location.
22. The method of claim 13 , wherein:
the first component carrier is used to communicate with user equipments capable of communicating with a first or later version of a wireless communications standard; and
the second component carrier is used to communicate with user equipments capable of communicating with a second version of the standard earlier than the first version.
23. The method of claim 13 , wherein:
the second cell comprises a lower power class type than the first cell.
24. The method of claim 23 , wherein:
the second component carrier comprises at least one of an extension carrier or a carrier segment.
25. An apparatus for wireless communications in a wireless communications network, comprising:
means for allocating, to a first user equipment in a first cell of a first power class, resources of a first component carrier for use as a physical downlink shared channel, and
means for allocating resources of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the resources of the first portion of the second component carrier do not overlap with resources of a second portion of the second component carrier allocated as a control region for one or more second user equipments in the second cell, and wherein paging is prohibited in the extension; and
means for transmitting data to the first user equipment on the physical downlink shared channel.
26. The apparatus of claim 25 , wherein the resources of the first component carrier and the resources of the first portion of the second component carrier are allocated for use by different user equipments.
27. The apparatus of claim 25 , wherein the wireless communications network comprises a heterogeneous network and the first and second cells comprise cells of different power class types.
28. The apparatus of claim 25 , wherein the first portion of second component carrier comprises a carrier segment adjacent the first component carrier.
29. The apparatus of claim 25 , wherein the second component carrier comprises an extension carrier.
30. The apparatus of claim 25 , wherein the means for transmitting is further configured to convey, to the first user equipment, an indication of a location of the first portion of the second component carrier.
31. The apparatus of claim 30 , wherein the means for transmitting is configured to:
send, using the first component carrier, the first user equipment an indication of a starting symbol of the first portion of the second component carrier.
32. The apparatus of claim 31 , wherein the indication of the starting symbol is determined based on a size of the second portion of the second component carrier used as a control region for one or more second user equipments.
33. The apparatus of claim 25 , wherein the first portion of the second component carrier begins at a fixed location known to the first user equipment.
34. The apparatus of claim 25 , wherein:
the first user equipment comprises a user equipment capable of communicating with a first or later version of a wireless communications standard; and
the second user equipment comprises a user equipment capable of communicating with a second version of the standard earlier than the first version.
35. The apparatus of claim 25 , wherein:
the second cell comprises a lower power class type than the first cell.
36. The apparatus of claim 35 , wherein:
the second component carrier comprises at least one of an extension carrier or a carrier segment.
37. An apparatus for wireless communications in a wireless communications network, comprising:
means for receiving, from a base station of a first cell, allocation of resources of a first component carrier for use as a physical downlink shared channel, and
means for receiving, from the base station, allocation of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the first portion of the second component carrier does not overlap with a second portion of the second component carrier allocated as a control region for one or more user equipments of the second cell, and wherein paging is prohibited in the extension; and
means for receiving downlink transmissions from the base station on the physical downlink shared channel.
38. The apparatus of claim 37 , wherein the resources of the first component carrier and the resources of the first portion of the second component carrier are allocated for use by different user equipments.
39. The apparatus of claim 37 , wherein the wireless communications network comprises a heterogeneous network and the first and second cells comprise cells of different power class types.
40. The apparatus of claim 37 , wherein the first portion of second component carrier comprises a carrier segment adjacent the first component carrier.
41. The apparatus of claim 37 , wherein the second component carrier comprises an extension carrier.
42. The apparatus of claim 37 , wherein the means for receiving the downlink transmissions is further configured to receive, from the base station, an indication of a location of the first portion of the second component carrier.
43. The apparatus of claim 42 , wherein the means for receiving the downlink transmissions is configured to:
receive, using the first component carrier, an indication of a starting symbol of the first portion of the second component carrier.
44. The apparatus of claim 43 , wherein the indication of the starting symbol is determined based on a size of the second portion of the second component carrier used as a control region for one or more user equipments.
45. The apparatus of claim 37 , wherein the first portion of the second component carrier begins at a fixed location.
46. The apparatus of claim 37 , wherein:
the first component carrier is used to communicate with user equipments capable of communicating with a first or later version of a wireless communications standard; and
the second component carrier is used to communicate with user equipments capable of communicating with a second version of the standard earlier than the first version.
47. The apparatus of claim 37 , wherein:
the second cell comprises a lower power class type than the first cell.
48. The apparatus of claim 47 , wherein:
the second component carrier comprises at least one of an extension carrier or a carrier segment.
49. An apparatus for wireless communications in a wireless communications network, comprising:
a scheduling component comprising hardware, the scheduling component being configured to allocate, to a first user equipment in a first cell of a first power class, resources of a first component carrier for use as a physical downlink shared channel and to allocate resources of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the resources of the first portion of the second component carrier do not overlap with resources of a second portion of the second component carrier allocated as a control region for one or more second user equipments in the second cell, and wherein paging is prohibited in the extension; and
a transmitter configured to transmit data to the first user equipment on the physical downlink shared channel.
50. An apparatus for wireless communications in a wireless communications network, comprising:
a scheduling component comprising hardware, the scheduling component being configured to receive, from a base station of a first cell, allocation of resources of a first component carrier for use as a physical downlink shared channel and allocation of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the first portion of the second component carrier does not overlap with a second portion of the second component carrier allocated as a control region for one or more user equipments of the second cell, and wherein paging is prohibited in the extension; and
a receiver configured to receive downlink transmissions from the base station on the physical downlink shared channel.
51. A computer-program product for wireless communications, comprising a non-transitory computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
instructions for allocating, to a first user equipment in a first cell of a first power class, resources of a first component carrier for use as a physical downlink shared channel; and
instructions for allocating resources of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the resources of the first portion of the second component carrier do not overlap with resources of a second portion of the second component carrier allocated as a control region for one or more second user equipments in the second cell, and wherein paging is prohibited in the extension.
52. A computer-program product for wireless communications, comprising a non-transitory computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
instructions for receiving, from a base station of a first cell, allocation of resources of a first component carrier for use as a physical downlink shared channel; and
instructions for receiving, from the base station, allocation of a first portion of a second component carrier for use as an extension of the physical downlink shared channel based on resource partitioning information shared between the first cell and a second cell, wherein the first portion of the second component carrier does not overlap with a second portion of the second component carrier allocated as a control region for one or more user equipments of the second cell, and wherein paging is prohibited in the extension.