Traffic management for multi-hop wireless communication
First Claim
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1. A method of multi-hop wireless communication, comprising:
- receiving, at a first wireless node, information relating to first data buffered at a second wireless node for transmission to a third wireless node;
determining, at the first wireless node, that the first wireless node has second data that is to be forwarded by the second wireless node to the third wireless node;
determining at the first wireless node, based on the information, whether there is a traffic bottleneck associated with data transmission from the second wireless node to the third wireless node; and
determining at the first wireless node, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the first wireless node will interfere with reception at a fourth wireless node, whether to transmit the second data from the first wireless node to the second wireless node or to instead transmit a message that informs the second wireless node to not expect a data transmission from the wireless node.
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Abstract
Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.
63 Citations
38 Claims
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1. A method of multi-hop wireless communication, comprising:
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receiving, at a first wireless node, information relating to first data buffered at a second wireless node for transmission to a third wireless node; determining, at the first wireless node, that the first wireless node has second data that is to be forwarded by the second wireless node to the third wireless node; determining at the first wireless node, based on the information, whether there is a traffic bottleneck associated with data transmission from the second wireless node to the third wireless node; and determining at the first wireless node, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the first wireless node will interfere with reception at a fourth wireless node, whether to transmit the second data from the first wireless node to the second wireless node or to instead transmit a message that informs the second wireless node to not expect a data transmission from the wireless node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for multi-hop wireless communication, comprising:
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a receiver configured to receive information relating to first data buffered at a first wireless node for transmission to a second wireless node; and a transmission controller configured to; determine that the apparatus has second data that is to be forwarded by the first wireless node to the second wireless node, determine, based on the information, whether there is a traffic bottleneck associated with data transmission from the first wireless node to the second wireless node, and determine, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the apparatus will interfere with reception at a third wireless node, whether to transmit the second data from the apparatus to the first wireless node or to instead transmit a message that informs the first wireless node to not expect a data transmission from the apparatus. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for multi-hop wireless communication, comprising:
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means for receiving information relating to first data buffered at a first wireless node for transmission to a second wireless node; means for determining that the apparatus has second data that is to be forwarded by the first wireless node to the second wireless node; means for determining, based on the information, whether there is a traffic bottleneck associated with data transmission from the first wireless node to the second wireless node; and means for determining, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the apparatus will interfere with reception at a third wireless node, whether to transmit the second data from the apparatus to the first wireless node or to instead transmit a message that informs the first wireless node to not expect a data transmission from the apparatus. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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36. A computer-program product for multi-hop wireless communication, comprising:
non-transitory computer-readable storage medium comprising codes executable to; receive, at a first wireless node, information relating to first data buffered at a second wireless node for transmission to a third wireless node; determine, at the first wireless node, that the first wireless node has second data that is to be forwarded by the second wireless node to the third wireless node; determine at the first wireless node, based on the information, whether there is a traffic bottleneck associated with data transmission from the first wireless node to the second wireless node; and determine at the first wireless node, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the first wireless node will interfere with reception at a fourth wireless node, whether to transmit the second data from the first wireless node to the second wireless node or to instead transmit a message that informs the second wireless node to not expect a data transmission from the first wireless node.
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37. An access point, comprising:
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an antenna; a receiver configured to receive, via the antenna, information relating to first data buffered at a first wireless node for transmission to a second wireless node; and a transmission controller configured to; determine that the access point has second data that is to be forwarded by the first wireless node to the second wireless node, determine, based on the information, whether there is a traffic bottleneck associated with data transmission from the first wireless node to the second wireless node, and determine, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the access point will interfere with reception at a third wireless node, whether to transmit the second data from the access point to the first wireless node or to instead transmit a message that informs the first wireless node to not expect a data transmission from the access point.
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38. An access terminal, comprising:
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a receiver configured to receive information relating to first data buffered at a first wireless node for transmission to a second wireless node; a transmission controller configured to; determine that the access terminal has second data that is to be forwarded by the first wireless node to the second wireless node, determine, based on the information, whether there is a traffic bottleneck associated with data transmission from the first wireless node to the second wireless node, and determine, based on the determination of whether there is a traffic bottleneck and based on whether transmission of the second data from the access terminal will interfere with reception at a third wireless node, whether to transmit the second data from the access terminal to the first wireless node or to instead transmit a message that informs the first wireless node to not expect a data transmission from the access terminal; and a user interface configured to output an indication based on data received via the receiver.
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Specification