Interference reduction request in a wireless communication system
First Claim
1. A method for wireless communication, comprising:
- obtaining an indication to invoke interference mitigation for a first station in response to the first station observing high interference from at least one interfering station;
determining at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication;
sending a first message from the first station to the at least one interfering station to request reduction of interference on the at least one resource, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource; and
receiving a data transmission on the at least one resource from a second station.
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Accused Products
Abstract
Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may send a first message to at least one interfering station to request reduction of interference on at least one resource. The first station may send the first message in anticipation of receiving data on the at least one resource. An interfering station may receive the first message from the first station and may reduce interference on the at least one resource by reducing its transmit power and/or by steering its power in a direction different from the first station. The first station may thereafter receive data from a second station on the at least one resource. The techniques may be used for data transmission on the forward and reverse links.
33 Citations
43 Claims
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1. A method for wireless communication, comprising:
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obtaining an indication to invoke interference mitigation for a first station in response to the first station observing high interference from at least one interfering station; determining at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; sending a first message from the first station to the at least one interfering station to request reduction of interference on the at least one resource, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource; and receiving a data transmission on the at least one resource from a second station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for wireless communication, comprising:
at least one processor configured to; obtain an indication to invoke interference mitigation for a first station in response to the first station observing high interference from at least one interfering station; determine at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication, send a first message from the first station to the at least one interfering station to request reduction of interference on the at least one resource, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource, and receive a data transmission on the at least one resource from a second station. - View Dependent Claims (14, 15, 16)
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17. An apparatus for wireless communication, comprising:
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means for obtaining an indication to invoke interference mitigation for a first station in response to the first station observing high interference from at least one interfering station; means for determining at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; means for sending a first message from the first station to the at least one interfering station to request reduction of interference on the at least one resource, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource; and means for receiving a data transmission on the at least one resource from a second station. - View Dependent Claims (18, 19, 20)
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21. A computer program product, comprising:
a non-transitory computer-readable medium comprising; code for causing at least one computer to obtain an indication to invoke interference mitigation for a first station in response to the first station observing high interference from at least one interfering station; code for causing the at least one computer to determine at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; code for causing the at least one computer to send a first message from the first station to the at least one interfering station to request reduction of interference on the at least one resource, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource, and code for causing the at least one computer to receive a data transmission on the at least one resource from a second station.
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22. A method for wireless communication, comprising:
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receiving a first message sent by a first station to request reduction of interference on at least one resource, the first message being sent by the first station in response to an indication to invoke interference mitigation due to the first station observing high interference from at least one interfering station, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource; determining the at least one resource on which to reduce interference based on the first message, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; and reducing interference on the at least one resource by a second station. - View Dependent Claims (23, 24, 25)
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26. An apparatus for wireless communication, comprising:
at least one processor configured to; receive a first message sent by a first station to request reduction of interference on at least one resource, the first message being sent by the first station in response to an indication to invoke interference mitigation due to the first station observing high interference from at least one interfering station, the first message being intended for only the at least one interfering station and being sent in anticipation of data being received by the first station on the at least one resource, determine the at least one resource on which to reduce interference based on the first message, the at least one resource corresponding to a portion of a system bandwidth available for use for communication, and reduce interference on the at least one resource by a second station. - View Dependent Claims (27, 28, 29)
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30. A method for wireless communication, comprising:
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obtaining an indication to invoke interference mitigation for a terminal in response to the terminal observing high interference from at least one interfering base station; determining at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; sending a first message from the terminal to request the at least one interfering base station to reduce interference on the at least one resource, the first message being intended for only the at least one interfering base station and being sent in anticipation of data being received by the terminal on the at least one resource; and receiving a data transmission on the at least one resource from a serving base station. - View Dependent Claims (31, 32, 33, 34)
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35. An apparatus for wireless communication, comprising:
at least one processor configured to; obtain an indication to invoke interference mitigation for a terminal in response to the terminal observing high interference from at least one interfering base station, determine at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication, send a first message from the terminal to request the at least one interfering base station to reduce interference on the at least one resource, the first message being intended for only the at least one interfering base station and being sent in anticipation of data being received by the terminal on the at least one resource, and receive a data transmission on the at least one resource from a serving base station. - View Dependent Claims (36, 37)
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38. A method for wireless communication, comprising:
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obtaining an indication to invoke interference mitigation for a base station in response to the base station observing high interference from at least one interfering terminal; determining at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication; sending a first message from the base station to request the at least one interfering terminal to reduce interference on the at least one resource, the first message being intended for only the at least one interfering terminal and being sent in anticipation of data being received by the base station on the at least one resource; and receiving a data transmission on the at least one resource from a terminal. - View Dependent Claims (39, 40)
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41. An apparatus for wireless communication, comprising:
at least one processor configured to; obtain an indication to invoke interference mitigation for a base station in response to the base station observing high interference from at least one interfering terminal, determine at least one resource on which to request reduction of interference in response to the indication to invoke interference mitigation, the at least one resource corresponding to a portion of a system bandwidth available for use for communication, send a first message from the base station to request the at least one interfering terminal to reduce interference on the at least one resource, the first message being intended for only the at least one interfering terminal and being sent in anticipation of data being received by the base station on the at least one resource, and receive a data transmission on the at least one resource from a terminal. - View Dependent Claims (42, 43)
Specification