Method and apparatus for timeslot swapping

• US 9,820,156 B2
• Filed: 11/21/2007
• Issued: 11/14/2017
• Est. Priority Date: 11/21/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Horn, Gavin Bernard, Sampath, Ashwin
• Primary Examiner(s): WYLLIE, CHRISTOPHER T
• Application Number:
  US12/063,657
• Publication Number:
  US 20100226317A1
• Time in Patent Office: 3,646 Days
• Field of Search: None
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 16/04 Traffic adaptive resource partitioning
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• CPC Class Codes: H04W 28/0231 based on communication conditions dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54

Abstract

All or a portion of a timeslot of a slotted communication system may be dynamically designated for transmitting or for receiving. For example, a timeslot originally designated for receiving information at a wireless node may be temporarily designated for transmitting information from the wireless node. Such a designation may be made to accommodate a temporary asymmetry in traffic flow between wireless nodes or may be made based on other criteria. In some aspects, a resource utilization messaging scheme may be employed to mitigate interference associated with the designation of timeslots for transmitting or receiving.

Claims

1. A method of wireless communication for a first node, comprising:

redesignating a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting;

determining, as a result of the redesignated use for the control portion, whether transmission by the first node to at least one second node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the first node;

redesignating a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one second node to a new designated use of transmitting to the at least one second node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination; and

transmitting a message to the at least one second node regarding the redesignated use for the at least one portion of the second timeslot, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

2. The method of claim 1, wherein the prior designated use comprises a default designated use.

3. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot is a function of interference associated with the prior designated use.

4. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot is a function of interference associated with the first node or the at least one second node.

5. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot is a function of an amount of traffic to be transmitted between the first node and the at least one second node.

6. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot is a function of at least one transmission rate or reception rate associated with the first node or the at least one second node.

7. The method of claim 1, wherein:

the redesignation of use for the at least one portion of the second timeslot comprises receiving, from the at least one second node, a message that is used to determine how to redesignate the use for the at least one portion of the second timeslot.

8. The method of claim 7, wherein the received message comprises a request to redesignate the use for the at least one portion of the second timeslot.

9. The method of claim 8, wherein the transmitted message informs the at least one second node that the request is granted or denied.

10. The method of claim 7, wherein the received message includes information associated with the at least one second node relating to at least one of buffer size, latency, and quality of service.

11. The method of claim 1, wherein the first node comprises an access terminal.

12. The method of claim 11, wherein:

the at least one second node comprises an access point;

the redesignation of use for the at least one portion of the second timeslot by the access terminal comprises generating information relating to redesignating one or more timeslots for transmitting to the access point; and

the message regarding the redesignated use for the at least one portion of the second timeslot comprises a request to the access point, based on the information, to redesignate one or more timeslots for transmitting.

13. The method of claim 1, further comprising transmitting a message regarding a redesignation of use for at least one portion of each of a plurality of timeslots, wherein the plurality of timeslots includes the second timeslot.

14. The method of claim 1, wherein the at least one portion of the second timeslot comprises a plurality of portions of the second timeslot.

15. The method of claim 14, wherein the portions of the second timeslot have different sizes.

16. The method of claim 1, wherein:

the at least one portion of the second timeslot comprises a data portion of the second timeslot; and

the redesignation of use for the at least one portion of the second timeslot comprises changing, for a first portion of the data portion, a prior designated use to a new designated use, and maintaining a prior designated use of a second portion of the data portion.

17. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot accommodates asymmetry between an amount of information to be transmitted from the first node to the at least one second node and an amount of information to be transmitted from the at least one second node to the first node.

18. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot accommodates asymmetry between a rate at which the first node transmits to the at least one second node and a rate at which the at least one second node transmits to the first node.

19. The method of claim 1, further comprising using a resource utilization message to counteract interference resulting from the redesignation of use for the at least one portion of the second timeslot.

20. The method of claim 1, further comprising using a resource utilization message to prevent a change from a default designated use.

21. The method of claim 1, wherein:

the second timeslot comprises at least one data portion and at least one control portion; and

the at least one portion of the second timeslot redesignated for use is the at least one data portion.

22. The method of claim 1, further comprising defining guard time periods adjacent the at least one portion of the second timeslot to accommodate switching, at the first node or the at least one second node, between transmission and reception during the second timeslot.

23. The method of claim 1, further comprising dropping at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the first node or the at least one second node, between transmission and reception during the second timeslot.

24. The method of claim 1, further comprising defining a coding rate or modulation to accommodate dropping of at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the first node or the at least one second node, between transmission and reception during the second timeslot.

25. The method of claim 1, wherein the determination is based on information received in a resource utilization message that a particular receiving node is disadvantaged and is weighted to indicate a degree to which the receiving node is disadvantaged.

76. The method of claim 1, wherein:

the message is transmitted prior to the redesignation of the use for the at least one portion of the second timeslot;

the message comprises a request to the at least one second node to authorize the redesignation of use for the at least one portion of the second timeslot; and

the method further comprises receiving a response to the message, wherein the response indicates that the redesignation of use for the at least one portion of the second timeslot is authorized.

79. The method of claim 1, wherein transmitting the message includes transmitting information indicating a duration during which the use of the at least one portion of the second timeslot is redesignated.

80. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot is selectively performed on either a timeslot-by-time slot basis or on a continual basis.

81. The method of claim 1, wherein the redesignation of use for the at least one portion of the second timeslot applies to only a subset of links associated with a particular node.

82. The method of claim 1, wherein timings of transmissions are synchronized among nodes of the system.

26. An apparatus for wireless communication, comprising:

a processor configured to;

redesignate a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting,

determine, as a result of the redesignated use for the control portion, whether transmission by the apparatus to at least one node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the apparatus, and

redesignate a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one node to a new designated use of transmitting to the at least one node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination; and

a transmitter configured to transmit a message to the at least one node regarding the redesignated use for the at least one portion of the second timeslot; and

wherein the apparatus is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

27. The apparatus of claim 26, wherein the prior designated use comprises a default designated use.

28. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot as a function of interference associated with the prior designated use.

29. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot as a function of interference associated with the apparatus or the at least one node.

30. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot as a function of an amount of traffic to be transmitted between the apparatus and the at least one node.

31. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot as a function of at least one transmission rate or reception rate associated with the apparatus or the at least one node.

32. The apparatus of claim 26, further comprising a receiver configured to receive a message from the at least one node, wherein:

the processor is further configured to use the received message to determine how to redesignate the use for the at least one portion of the second timeslot.

33. The apparatus of claim 32, wherein the received message comprises a request to redesignate the use for the at least one portion of the second timeslot.

34. The apparatus of claim 33, wherein the transmitted message informs the at least one node that the request is granted or denied.

35. The apparatus of claim 32, wherein the received message includes information associated with the at least one node relating to at least one of buffer size, latency, and quality of service.

36. The apparatus of claim 26, wherein:

the at least one node comprises an access point;

the processor is further configured to redesignated the use for the at least one portion of the second timeslot by generation of information relating to redesignating one or more timeslots for transmitting to the access point; and

the transmitted message comprises a request to the access point, based on the information, to redesignate one or more timeslots for transmitting.

37. The apparatus of claim 26, wherein the transmitter is further configured to transmit a message regarding a redesignation of use for at least one portion of each of a plurality of timeslots, wherein the plurality of timeslots includes the second timeslot.

38. The apparatus of claim 26, wherein the at least one portion of the second timeslot comprises a plurality of portions of the second timeslot.

39. The apparatus of claim 38, wherein the portions of the second timeslot have different sizes.

40. The apparatus of claim 26, wherein:

the at least one portion of the second timeslot comprises a data portion of the second timeslot; and

the processor is further configured to redesignate the use for the at least one portion of the second timeslot by a change, for a first portion of the data portion, from a prior designated use to a new designated use, and by no change in a prior designated use of a second portion of the data portion.

41. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot to accommodate asymmetry between an amount of information to be transmitted from the apparatus to the at least one node and an amount of information to be transmitted from the at least one node to the apparatus.

42. The apparatus of claim 26, wherein the processor is further configured to redesignate the use for the at least one portion of the second timeslot to accommodate asymmetry between a rate at which the apparatus transmits to the at least one node and a rate at which the at least one node transmits to the apparatus.

43. The apparatus of claim 26, further comprising an interference controller configured to use a resource utilization message to counteract interference resulting from the redesignation of use for the at least one portion of the second timeslot.

44. The apparatus of claim 26, further comprising an interference controller configured to use a resource utilization message to prevent a change from a default designated use.

45. The apparatus of claim 26, wherein:

the second timeslot comprises at least one data portion and at least one control portion; and

the at least one portion of the second timeslot redesignated for use is the at least one data portion.

46. The apparatus of claim 26, wherein the processor is further configured to define guard time periods adjacent the at least one portion of the second timeslot to accommodate switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

47. The apparatus of claim 26, further comprising a communication processor configured to drop at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

48. The apparatus of claim 26, further comprising a communication processor configured to define a coding rate or modulation to accommodate dropping of at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

49. The apparatus of claim 26, wherein the determination made by the processor is based on information received in a resource utilization message that a particular receiving node is disadvantaged and is weighted to indicate a degree to which the receiving node is disadvantaged.

77. The apparatus of claim 26, wherein:

the message is transmitted prior to the redesignation of the use for the at least one portion of the second timeslot;

the message comprises a request to the at least one second node to authorize the redesignation of use for the at least one portion of the second timeslot; and

the apparatus further comprises a receiver configured to receive a response to the message, wherein the response indicates that the redesignation of use for the at least one portion of the second timeslot is authorized.

83. The apparatus of claim 26, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

50. An apparatus for wireless communication, comprising:

means for redesignating configured to redesignate a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting;

means for determining, as a result of the redesignated use for the control portion, whether transmission by the apparatus to at least one node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the apparatus;

wherein the means for redesignating is further configured to redesignate a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one node to a new designated use of transmitting to the at least one node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination; and

means for transmitting a message to the at least one node regarding the redesignated use for the at least one portion of the second timeslot; and

wherein the apparatus is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

51. The apparatus of claim 50, wherein the prior designated use comprises a default designated use.

52. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot as a function of interference associated with the prior designated use.

53. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot as a function of interference associated with the apparatus or the at least one node.

54. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot as a function of an amount of traffic to be transmitted between the apparatus and the at least one node.

55. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot as a function of at least one transmission rate or reception rate associated with the apparatus or the at least one node.

56. The apparatus of claim 50, further comprising means for receiving a message from the at least one node, wherein:

the means for redesignating is further configured to use the received message to determine how to redesignate the use for the at least one portion of the second timeslot.

57. The apparatus of claim 56, wherein the received message comprises a request to redesignate the use for the at least one portion of the second timeslot.

58. The apparatus of claim 57, wherein the transmitted message informs the at least one node that the request is granted or denied.

59. The apparatus of claim 56, wherein the received message includes information associated with the at least one node relating to at least one of buffer size, latency, and quality of service.

60. The apparatus of claim 50, wherein:

the at least one node comprises an access point;

the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot by generation of information relating to redesignating one or more timeslots for transmitting to the access point; and

the transmitted message comprises a request to the access point, based on the information, to redesignate one or more timeslots for transmitting.

61. The apparatus of claim 50, wherein the means for transmitting is configured to transmit a message regarding a redesignation of use for at least one portion of each of a plurality of timeslots, wherein the plurality of timeslots includes the second timeslot.

62. The apparatus of claim 50, wherein the at least one portion of the second timeslot comprises a plurality of portions of the second timeslot.

63. The apparatus of claim 62, wherein the portions of the second timeslot have different sizes.

64. The apparatus of claim 50, wherein:

the at least one portion of the second timeslot comprises a data portion of the second timeslot; and

the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot by a change, for a first portion of the data portion, from a prior designated use to a new designated use, and by no change in a prior designated use of a second portion of the data portion.

65. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot to accommodate asymmetry between an amount of information to be transmitted from the apparatus to the at least one node and an amount of information to be transmitted from the at least one node to the apparatus.

66. The apparatus of claim 50, wherein the means for redesignating is further configured to redesignate the use for the at least one portion of the second timeslot to accommodate asymmetry between a rate at which the apparatus transmits to the at least one node and a rate at which the at least one node transmits to the apparatus.

67. The apparatus of claim 50, further comprising means for using a resource utilization message to counteract interference resulting from the redesignation of the use for the at least one portion of the second timeslot.

68. The apparatus of claim 50, further comprising means for using a resource utilization message to prevent a change from a default designated use.

69. The apparatus of claim 50, wherein:

the second timeslot comprises at least one data portion and at least one control portion; and

the at least one portion of the second timeslot redesignated for use is the at least one data portion.

70. The apparatus of claim 50, wherein the means for redesignating is further configured to define guard time periods adjacent the at least one portion of the second timeslot to accommodate switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

71. The apparatus of claim 50, further comprising means for dropping at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

72. The apparatus of claim 50, further comprising means for defining a coding rate or modulation to accommodate dropping of at least one symbol at a beginning, at an end, or at a beginning and an end of the at least one portion of the second timeslot, wherein the dropping of the at least one symbol accommodates switching, at the apparatus or the at least one node, between transmission and reception during the second timeslot.

78. The apparatus of claim 50, wherein:

the message is transmitted prior to the redesignation of the use for the at least one portion of the second timeslot;

the message comprises a request to the at least one second node to authorize the redesignation of use for the at least one portion of the second timeslot; and

the apparatus further comprises means for receiving a response to the message, wherein the response indicates that the redesignation of use for the at least one portion of the second timeslot is authorized.

84. The apparatus of claim 50, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

73. A computer-readable storage device for wireless communication for a first node comprising codes executable by at least one computer to:

redesignate a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting;

determine, as a result of the redesignated use for the control portion, whether transmission by the first node to at least one second node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the first node;

redesignate a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one second node to a new designated use of transmitting to the at least one second node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination; and

transmit a message to the at least one second node regarding the redesignated use for the at least one portion of the second timeslot, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

85. The computer-readable storage of claim 73, wherein timings of transmissions are synchronized among nodes of the system.

74. An access point for wireless communication, comprising:

an antenna;

a processor configured to;

redesignate a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting,

determine, as a result of the redesignated use for the control portion, whether transmission by the access point to at least one node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the access point, and

redesignate a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one node to a new designated use of transmitting to the at least one node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination; and

a transmitter configured to transmit a message via the antenna to the at least one node regarding the redesignated use for the at least one portion of the second timeslot; and

wherein the access point is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

86. The access point of claim 74, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

75. An access terminal for wireless communication, comprising:

a processor configured to;

redesignate a use for a control portion of a first timeslot, wherein the first timeslot comprises the control portion and another portion, and the redesignation of use for the control portion comprises designation of the control portion for receiving instead of transmitting while the other portion remains designated for transmitting,

determine, as a result of the redesignated use for the control portion, whether transmission by the access terminal to at least one node during at least one portion of a second timeslot would interfere with at least one other node, wherein the at least one other node is different from the access terminal, and

redesignate a use for the at least one portion of the second timeslot, wherein the redesignation of use for the at least one portion of the second timeslot comprises a change from a prior designated use of receiving from the at least one node to a new designated use of transmitting to the at least one node while at least one other portion of the second time slot remains unchanged and continues to be used for receiving, and wherein the redesignation of use for the at least one portion of the second timeslot is based on the determination;

a transmitter configured to transmit a message to the at least one node regarding the redesignated use for the at least one portion of the second timeslot; and

a user interface configured to output an indication based on data received from the at least one node; and

wherein the access terminal is a first transmitting node and wherein, if the first transmitting node determines that a receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node ignores resource requests from the other receiving nodes and elects to transmit during a timeslot associated with the receiving node.

87. The access terminal of claim 75, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

88. A method of wireless communication for a first mode, comprising:

redesignating a use of a first timeslot between transmitting and receiving;

determining, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged;

redesignating a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination; and

transmitting a message to the at least one second node regarding the redesignated use of the first and second timeslots, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node elects to transmit during a timeslot associated with the particular receiving node.

89. The method of claim 88, wherein the redesignation of the use of the first timeslot is from transmitting to receiving and the redesignation of the use of the second timeslot is from receiving to a new designated use of transmitting.

90. The method of claim 88, wherein the redesignation of the use of the first timeslot is from receiving to transmitting and the redesignation of the use of the second timeslot is from transmitting to a new designated use of receiving.

91. The method of claim 88, wherein, if the first transmitting node determines that a non-associated receiving node is disadvantaged relative to a receiving node associated with the first transmitting node, the first transmitting node abstains from transmitting or reduces its transmit power during one or more designated timeslots to avoid interfering with the non-associated receiving node.

92. The method of claim 88, wherein timings of transmissions are synchronized among nodes of the system.

93. An apparatus for wireless communication, comprising:

a processor of a first node configured to;

redesignate a use of a first timeslot between transmitting and receiving;

determine, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged; and

redesignate a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination; and

a transmitter of the first node configured to transmit a message to the at least one second node regarding the redesignated use of the first and second timeslots, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node elects to transmit during a timeslot associated with the particular receiving node.

94. The apparatus of claim 93, wherein the processor is configured to redesignate the use of the first timeslot from transmitting to receiving and to redesignate the use of the second timeslot from receiving to a new designated use of transmitting.

95. The apparatus of claim 93, wherein the processor is configured to redesignate the use of the first timeslot from receiving to transmitting and to redesignate the use of the second timeslot from transmitting to a new designated use of receiving.

96. The apparatus of claim 93, wherein, if the first transmitting node determines that a non-associated receiving node is disadvantaged relative to a receiving node associated with the first transmitting node, the processor is configured to control the first transmitting node to abstain from transmitting or reduces its transmit power during one or more designated timeslots to avoid interfering with the non-associated receiving node.

97. The apparatus of claim 93, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

98. An apparatus of a first node for wireless communication, comprising:

means for redesignating a use of a first timeslot between transmitting and receiving;

means for determining, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged;

means for redesignating a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination; and

means for transmitting a message to the at least one second node regarding the redesignated use of the first and second timeslots, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the means for transmitting of the first transmitting node elects to transmit during a timeslot associated with the particular receiving node.

99. The apparatus of claim 98, wherein the means for transmitting includes means for synchronizing the timings of transmissions among nodes of the system.

100. A computer-readable storage device for wireless communication for a first node comprising codes executable by at least one computer to:

redesignate a use of a first timeslot between transmitting and receiving;

determine, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged;

redesignate a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination;

transmit a message to the at least one second node regarding the redesignated use of the first and second timeslots, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node elects to transmit during a timeslot associated with the particular receiving node.

101. The computer-readable storage of claim 100, wherein timings of transmissions are synchronized among nodes of the system.

102. An access point for wireless communication, comprising:

an antenna;

a processor of a first node configured to;

redesignate a use of a first timeslot between transmitting and receiving;

determine, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged; and

redesignate a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination; and

a transmitter of the first node configured to transmit a message via the antenna to the at least one second node regarding the redesignated use of the first and second timeslots;

wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node elects to transmit during a timeslot associated with the particular receiving node.

103. The access point of claim 102, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.

104. An access terminal for wireless communication, comprising:

a processor of a first node configured to;

redesignate a use of a first timeslot between transmitting and receiving;

determine, as a result of the redesignation of the use of the first timeslot, whether transmission by the first node to at least one second node during at least a second timeslot would interfere with at least one other node, wherein the determination is based on information received in a resource utilization message that a particular receiving node associated with the first transmitting node is disadvantaged and wherein the resource utilization message is weighted to indicate a degree to which the particular receiving node is disadvantaged; and

redesignate a use of the second timeslot, wherein the redesignation of the second timeslot comprises a change from a prior designated use of receiving/transmitting from the at least one second node to a new designated use of transmitting/receiving to the at least one second node, and wherein the redesignation of use for the second timeslot is based on the determination;

a transmitter of the first node configured to transmit a message via the antenna to the at least one second node regarding the redesignated use of the first and second timeslots, wherein the first node is a first transmitting node and wherein, if the first transmitting node determines that the particular receiving node associated with the first transmitting node is disadvantaged relative to other receiving nodes, the first transmitting node elects to transmit during a timeslot associated with the particular receiving node; and

a user interface configured to output an indication based on data received from the at least one node.

105. The access terminal of claim 104, wherein timings of transmissions by the transmitter are synchronized among nodes of the system.