FDD AND TDD CARRIER AGGREGATION

• US 20120106404A1
• Filed: 10/31/2011
• Published: 05/03/2012
• Est. Priority Date: 11/01/2010
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Damnjanovic, Jelena M.
• Application Number:
  US13/286,209
• Publication Number:
  US 20120106404A1
• Time in Patent Office: Days
• US Class Current: 370/279
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex

Abstract

In a first configuration, a first BS communicates with a first UE through at least one CC. The first BS determines whether to aggregate the at least one CC with at least one additional CC for communication with the first UE based on an interference caused to a second BS and/or a second UE. The at least one additional CC is used by the second BS to communicate with the second UE. In a second configuration, an BS communicates with a first UE and a second UE through at least one CC. The BS determines whether to aggregate the at least one CC and at least one additional CC for communication with the second UE based on an interference caused to the first UE and/or a third UE. The at least one additional CC is used by the first UE to relay information between the third UE and the BS.

Claims

1. A method of wireless communication of a first base station (BS), comprising:

communicating with a first user equipment (UE) through at least one component carrier; and

determining whether to aggregate the at least one component carrier with at least one additional component carrier for communication with the first UE based on an interference caused to at least one of a second BS or a second UE, the at least one additional component carrier being used by the second BS to communicate with the second UE.

2. The method of claim 1, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

3. The method of claim 1, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier.

4. The method of claim 1, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

5. The method of claim 1, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

6. The method of claim 1, further comprising determining not to aggregate the at least on component carrier and the at least one additional component carrier for communication with the first UE when communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold or communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

7. The method of claim 1, further comprising determining whether to communicate unidirectionally or bidirectionally with the first UE through the at least one additional component carrier.

8. The method of claim 7, further comprising aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on an uplink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

9. The method of claim 7, further comprising aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on a downlink when the communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

10. The method of claim 7, further comprising aggregating the at least one component carrier and the at least one additional component carrier for bidirectional communication with the first UE on an uplink and a downlink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

11. A method of wireless communication, comprising:

receiving downlink communication from a base station (BS) in downlink through at least one component carrier;

relaying the downlink communication to a user equipment (UE) in resources of at least one additional component carrier;

receiving uplink communication from the UE in resources of the at least one additional component carrier; and

relaying the uplink communication to the BS in uplink through the at least one component carrier.

12. The method of claim 11, further comprising receiving a relay activation from the BS, wherein the method is performed by a first UE and the activation is based on at least one of a proximity detection between the UE and the first UE, an existing peer-to-peer communication between the UE and the first UE, or channel conditions of at least one of the UE or the first UE.

13. The method of claim 11, wherein:

the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink and downlink subframes;

the at least one component carrier comprises a first FDD uplink carrier and a first FDD downlink carrier, and the at least one additional component carrier comprises a second FDD uplink carrier and a second FDD downlink carrier;

the at least one component carrier comprises a TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises an FDD uplink carrier and an FDD downlink carrier;

or

the at least one component carrier comprises a first TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising uplink and downlink subframes.

14. A method of wireless communication of a base station (BS), comprising:

communicating with a first user equipment (UE) through at least one component carrier;

communicating with a second UE through the at least one component carrier; and

determining whether to aggregate the at least one component carrier and at least one additional component carrier for communication with the second UE based on an interference caused to at least one of the first UE or a third UE, the at least one additional component carrier being used by the first UE to relay information between the third UE and the BS.

15. The method of claim 14, further comprising activating the first UE to act as a relay.

16. The method of claim 15, wherein the activation of the first UE to act as a relay for communication with the third UE is based on at least one of a proximity detection between the first UE and the third UE, an existing peer-to-peer communication between the first UE and the third UE, or channel conditions of at least one of the first UE or the third UE.

17. The method of claim 14, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

18. The method of claim 14, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes.

19. The method of claim 14, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

20. The method of claim 14, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

21. The method of claim 14, further comprising determining not to aggregate the at least one component carrier and the at least one additional component carrier for communication with the second UE when communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

22. The method of claim 14, further comprising determining whether to communicate unidirectionally or bidirectionally with the second UE through the at least one additional component carrier.

23. The method of claim 22, further comprising aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on an uplink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

24. The method of claim 22, further comprising aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on a downlink when the communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

25. The method of claim 22, further comprising aggregating the at least one component carrier and the at least one additional component carrier for bidirectional communication with the second UE on an uplink and a downlink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

26. The method of claim 14, further comprising transmitting control information to the third UE through a component carrier, said component carrier being one of said at least one component carrier or a different component carrier, said component carrier being aggregated with said at least one additional component carrier by the third UE, wherein the information relayed by the first UE to the third UE is data from the BS.

27. A first base station (BS) for wireless communication, comprising:

means for communicating with a first user equipment (UE) through at least one component carrier; and

means for determining whether to aggregate the at least one component carrier with at least one additional component carrier for communication with the first UE based on an interference caused to at least one of a second BS or a second UE, the at least one additional component carrier being used by the second BS to communicate with the second UE.

28. The first BS of claim 27, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

29. The first BS of claim 27, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier.

30. The first BS of claim 27, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

31. The first BS of claim 27, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

32. The first BS of claim 27, further comprising means for determining not to aggregate the at least on component carrier and the at least one additional component carrier for communication with the first UE when communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold or communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

33. The first BS of claim 27, further comprising means for determining whether to communicate unidirectionally or bidirectionally with the first UE through the at least one additional component carrier.

34. The first BS of claim 33, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on an uplink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

35. The first BS of claim 33, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on a downlink when the communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

36. The first BS of claim 33, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for bidirectional communication with the first UE on an uplink and a downlink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

37. An apparatus for wireless communication, comprising:

means for receiving downlink communication from a base station (BS) in downlink through at least one component carrier;

means for relaying the downlink communication to a user equipment (UE) in resources of at least one additional component carrier;

means for receiving uplink communication from the UE in resources of the at least one additional component carrier; and

means for relaying the uplink communication to the BS in uplink through the at least one component carrier.

38. The apparatus of claim 37, further comprising means for receiving a relay activation from the BS, wherein the activation is based on at least one of a proximity detection between the UE and the apparatus, an existing peer-to-peer communication between the UE and the apparatus, or channel conditions of at least one of the UE or the apparatus.

39. The apparatus of claim 37, wherein:

the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink and downlink subframes;

the at least one component carrier comprises a first FDD uplink carrier and a first FDD downlink carrier, and the at least one additional component carrier comprises a second FDD uplink carrier and a second FDD downlink carrier;

the at least one component carrier comprises a TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises an FDD uplink carrier and an FDD downlink carrier;

or

the at least one component carrier comprises a first TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising uplink and downlink subframes.

40. A base station (BS) for wireless communication, comprising:

means for communicating with a first user equipment (UE) through at least one component carrier;

means for communicating with a second UE through the at least one component carrier; and

means for determining whether to aggregate the at least one component carrier and at least one additional component carrier for communication with the second UE based on an interference caused to at least one of the first UE or a third UE, the at least one additional component carrier being used by the first UE to relay information between the third UE and the BS.

41. The BS of claim 40, further comprising means for activating the first UE to act as a relay.

42. The BS of claim 41, wherein the activation of the first UE to act as a relay for communication with the third UE is based on at least one of a proximity detection between the first UE and the third UE, an existing peer-to-peer communication between the first UE and the third UE, or channel conditions of at least one of the first UE or the third UE.

43. The BS of claim 40, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

44. The BS of claim 40, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes.

45. The BS of claim 40, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

46. The BS of claim 40, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

47. The BS of claim 40, further comprising means for determining not to aggregate the at least one component carrier and the at least one additional component carrier for communication with the second UE when communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

48. The BS of claim 40, further comprising means for determining whether to communicate unidirectionally or bidirectionally with the second UE through the at least one additional component carrier.

49. The BS of claim 48, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on an uplink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

50. The BS of claim 48, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on a downlink when the communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

51. The BS of claim 48, further comprising means for aggregating the at least one component carrier and the at least one additional component carrier for bidirectional communication with the second UE on an uplink and a downlink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

52. The BS of claim 40, further comprising means for transmitting control information to the third UE through a component carrier, said component carrier being one of said at least one component carrier or a different component carrier, said component carrier being aggregated with said at least one additional component carrier by the third UE, wherein the information relayed by the first UE to the third UE is data from the BS.

53. A first base station (BS) for wireless communication, comprising:

a processing system configured to;

communicate with a first user equipment (UE) through at least one component carrier; and

determine whether to aggregate the at least one component carrier with at least one additional component carrier for communication with the first UE based on an interference caused to at least one of a second BS or a second UE, the at least one additional component carrier being used by the second BS to communicate with the second UE.

54. The first BS of claim 53, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

55. The first BS of claim 53, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier.

56. The first BS of claim 53, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

57. The first BS of claim 53, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

58. The first BS of claim 53, wherein the processing system is further configured to determine not to aggregate the at least on component carrier and the at least one additional component carrier for communication with the first UE when communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold or communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

59. The first BS of claim 53, wherein the processing system is further configured to determine whether to communicate unidirectionally or bidirectionally with the first UE through the at least one additional component carrier.

60. The first BS of claim 59, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on an uplink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and communication by the first BS on a downlink through the at least one additional component carrier causes interference to the second UE that is greater than a second interference threshold.

61. The first BS of claim 59, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for unidirectional communication with the first UE on a downlink when the communication by the first UE on an uplink through the at least one additional component carrier causes interference to the second BS that is greater than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

62. The first BS of claim 59, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for bidirectional communication with the first UE on an uplink and a downlink when the communication by the first UE on the uplink through the at least one additional component carrier causes interference to the second BS that is less than a first interference threshold and the communication by the first BS on the downlink through the at least one additional component carrier causes interference to the second UE that is less than a second interference threshold.

63. An apparatus for wireless communication, comprising:

a processing system configured to;

receive downlink communication from a base station (BS) in downlink through at least one component carrier;

relay the downlink communication to a user equipment (UE) in resources of at least one additional component carrier;

receive uplink communication from the UE in resources of the at least one additional component carrier; and

relay the uplink communication to the BS in uplink through the at least one component carrier.

64. The apparatus of claim 63, wherein the processing system is further configured to receive a relay activation from the BS, wherein the activation is based on at least one of a proximity detection between the UE and the apparatus, an existing peer-to-peer communication between the UE and the apparatus, or channel conditions of at least one of the UE or the apparatus.

65. The apparatus of claim 63, wherein:

the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink and downlink sub frames;

the at least one component carrier comprises a first FDD uplink carrier and a first FDD downlink carrier, and the at least one additional component carrier comprises a second FDD uplink carrier and a second FDD downlink carrier;

the at least one component carrier comprises a TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises an FDD uplink carrier and an FDD downlink carrier;

or

the at least one component carrier comprises a first TDD carrier comprising uplink and downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising uplink and downlink subframes.

66. A base station (BS) for wireless communication, comprising:

a processing system configured to;

communicate with a first user equipment (UE) through at least one component carrier;

communicate with a second UE through the at least one component carrier; and

determine whether to aggregate the at least one component carrier and at least one additional component carrier for communication with the second UE based on an interference caused to at least one of the first UE or a third UE, the at least one additional component carrier being used by the first UE to relay information between the third UE and the BS.

67. The BS of claim 66, wherein the processing system is further configured to activate the first UE to act as a relay.

68. The BS of claim 67, wherein the activation of the first UE to act as a relay for communication with the third UE is based on at least one of a proximity detection between the first UE and the third UE, an existing peer-to-peer communication between the first UE and the third UE, or channel conditions of at least one of the first UE or the third UE.

69. The BS of claim 66, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises at least one FDD carrier.

70. The BS of claim 66, wherein the at least one component carrier comprises a frequency division duplex (FDD) uplink carrier and an FDD downlink carrier, and the at least one additional component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes.

71. The BS of claim 66, wherein the at least one component carrier comprises a time division duplex (TDD) carrier comprising uplink subframes and downlink subframes and the at least one additional component carrier comprises at least one frequency division duplex (FDD) carrier.

72. The BS of claim 66, wherein the at least one component carrier comprises a first time division duplex (TDD) carrier comprising first TDD uplink subframes and first TDD downlink subframes, and the at least one additional component carrier comprises a second TDD carrier comprising second TDD uplink subframes and second TDD downlink subframes.

73. The BS of claim 66, wherein the processing system is further configured to determine not to aggregate the at least one component carrier and the at least one additional component carrier for communication with the second UE when communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

74. The BS of claim 66, wherein the processing system is further configured to determine whether to communicate unidirectionally or bidirectionally with the second UE through the at least one additional component carrier.

75. The BS of claim 74, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on an uplink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and communication by the BS on a downlink through the at least one additional component carrier causes interference to the third UE that is greater than a second interference threshold.

76. The BS of claim 74, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for unidirectional communication with the second UE on a downlink when the communication by the second UE on an uplink through the at least one additional component carrier causes interference to the first UE that is greater than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

77. The BS of claim 74, wherein the processing system is further configured to aggregate the at least one component carrier and the at least one additional component carrier for bidirectional communication with the second UE on an uplink and a downlink when the communication by the second UE on the uplink through the at least one additional component carrier causes interference to the first UE that is less than a first interference threshold and the communication by the BS on the downlink through the at least one additional component carrier causes interference to the third UE that is less than a second interference threshold.

78. The BS of claim 66, wherein the processing system is further configured to transmit control information to the third UE through a component carrier, said component carrier being one of said at least one component carrier or a different component carrier, said component carrier being aggregated with said at least one additional component carrier by the third UE, wherein the information relayed by the first UE to the third UE is data from the BS.

79. A computer program product in a first base station (BS), comprising:

a computer-readable medium comprising code for;

communicating with a first user equipment (UE) through at least one component carrier; and

determining whether to aggregate the at least one component carrier with at least one additional component carrier for communication with the first UE based on an interference caused to at least one of a second BS or a second UE, the at least one additional component carrier being used by the second BS to communicate with the second UE.

80. A computer program product, comprising:

a computer-readable medium comprising code for;

receiving downlink communication from a base station (BS) in downlink through at least one component carrier;

relaying the downlink communication to a user equipment (UE) in resources of at least one additional component carrier;

receiving uplink communication from the UE in resources of the at least one additional component carrier; and

relaying the uplink communication to the BS in uplink through the at least one component carrier.

81. A computer program product in a base station (BS), comprising:

a computer-readable medium comprising code for;

communicating with a first user equipment (UE) through at least one component carrier;

communicating with a second UE through the at least one component carrier; and

determining whether to aggregate the at least one component carrier and at least one additional component carrier for communication with the second UE based on an interference caused to at least one of the first UE or a third UE, the at least one additional component carrier being used by the first UE to relay information between the third UE and the BS.