Apparatus and method for changing relay station in data delivery route in broadband wireless access communication system
First Claim
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1. A method for changing a data delivery route in a Relay Station (RS) in a wireless communication system, comprising:
- scanning neighboring nodes and an upper node and transmitting a scanning result report message to a Base Station (BS); and
connecting to a new upper node, upon receipt of a node change request message from the BS, the node change request message requesting the RS to change from the upper node to the new upper node.
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Abstract
An apparatus and method for changing a data delivery route in a multi-hop relay Broadband Wireless Access (BWA) communication system are provided, in which a Relay Station (RS) scans neighboring nodes and an upper node. The RS transmits a scanning result report message to a base station (BS), and connects to a new upper node, upon receipt of a node change request message requesting the RS to change from the upper node to the new upper node from the BS.
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Citations
44 Claims
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1. A method for changing a data delivery route in a Relay Station (RS) in a wireless communication system, comprising:
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scanning neighboring nodes and an upper node and transmitting a scanning result report message to a Base Station (BS); and connecting to a new upper node, upon receipt of a node change request message from the BS, the node change request message requesting the RS to change from the upper node to the new upper node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for changing a data delivery route in a Base Station (BS) in a wireless communication system, comprising:
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determining if a data delivery route needs to be changed, upon receipt of a scanning result report message reporting scanning results of neighboring nodes and an upper node of a Relay Station (RS) from the RS; and determining an upper node for the RS, to form a new data delivery route, when determining that the data delivery route needs to be changed, and transmitting to the RS a node change request message requesting the RS to change from the upper node to the new upper node. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for changing a path between Relay Stations (RSs) in a wireless communication system, comprising:
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an RS for scanning neighboring nodes and an upper node, transmitting a scanning result report message to a Base Station (BS), and connecting to a new upper node, upon receipt of a node change request message from the BS, the node change request message requesting the RS to change from the upper node to the new upper node; and the BS for determining if a data delivery route needs to be changed, upon receipt of the scanning result report message from the RS, determining the new upper node for the RS, to form a new data delivery route, when determining that the data delivery route needs to be changed, and transmitting the node change request message to the RS. - View Dependent Claims (33, 34, 35)
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36. A method for changing a data delivery route in a Base Station (BS) in a wireless communication system, comprising:
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determining whether the data delivery route needs to be changed, if a channel status of a Relay Station (RS) is less than or equal to a predetermined threshold; requesting the lower RS of the RS to scan neighboring nodes and report scanning results to the BS, when determining that the data delivery route needs to be changed; and determining a new upper node for the lower RS, for configuring a new data delivery route, upon receipt of the scanning results from the lower RS, and requesting the lower RS to change from the upper node to the new upper node. - View Dependent Claims (37, 38, 39, 40)
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41. An apparatus for changing a path between Relay Stations (RSs) in a wireless communication system, comprising:
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a Base Station (BS) for determining that a data delivery route needs to be changed, if a channel status of an RS is less than or equal to a predetermined threshold; transmitting a scanning request message to a lower RS of the RS, the scanning request message requesting the lower RS to scan neighboring nodes and report scanning results to the BS; determining a new upper node for the lower RS, for configuring a new data delivery route, upon receipt of the scanning results from the lower RS; transmitting a node change request message to the lower RS, the node change request message requesting the lower RS to change from the upper node to the new upper node; and the lower RS for scanning the neighboring nodes, upon receipt of the scanning request message from the BS, and connecting to the new upper node, upon receipt of the node change request message from the BS. - View Dependent Claims (42, 43, 44)
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Specification