Routing apparatus and method in a multi-hop relay cellular network
First Claim
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1. A routing method in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS), the method comprising the steps of:
- measuring, by at least one RS neighboring the MS, quality of a link to the BS, generating link quality information using the measured link quality, and transmitting the link quality information to the MS; and
receiving, by the MS, the link quality information from the RSs, selecting an optimal path depending on the received link quality information, and transmitting information on the selected optimal path to the BS.
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Abstract
Provided is a routing method in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS). One of RSs neighboring the MS measures quality of a link to the BS, generates link quality information using the measured link quality, and transmits the link quality information to the MS. The MS receives the link quality information from the RSs, selects an optimal path depending on the received link quality information, and transmits information on the selected optimal path to the BS.
75 Citations
51 Claims
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1. A routing method in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS), the method comprising the steps of:
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measuring, by at least one RS neighboring the MS, quality of a link to the BS, generating link quality information using the measured link quality, and transmitting the link quality information to the MS; and
receiving, by the MS, the link quality information from the RSs, selecting an optimal path depending on the received link quality information, and transmitting information on the selected optimal path to the BS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A routing method of a relay station (RS) in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one RS, the method comprising the steps of:
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detecting a preamble of the BS, and determining a data rate of a BS-RS link from a signal-to-interference and noise ratio (SINR) of the BS preamble;
detecting a preamble of each of neighbor RSs, and determining a data rate of an RS-RS link from an SINR of each of the neighbor RSs;
calculating an optimal path'"'"'s effective data rate for each path from each of the RSs to the BS from information data included in the neighbor RSs'"'"' preambles;
selecting an optimal path among the paths from the RSs to the BS depending on the optimal path'"'"'s effective data rate, and reporting information on the selected optimal path to the BS; and
after reporting the optimal path information to the BS, generating its own preamble with a particular sequence and transmitting the preamble sequence. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A routing method of a mobile station (MS) in a multi-hop relay cellular network including the MS, a base station (BS), and at least one relay station (RS), the method comprising the steps of:
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detecting a preamble of the BS, and determining a data rate of a BS-RS link from a signal-to-interference and noise ratio (SINR) of the BS preamble;
detecting a preamble of each of the RSs, and determining a data rate of an RS-MS link to each of RSs from an SINR of each of the RSs;
calculating an optimal path'"'"'s effective data rate for each path from each of the RSs to the BS from information data included in the RS preamble; and
selecting an optimal path among the paths from the RSs to the BS depending on the optimal path'"'"'s effective data rate, and reporting information on the selected optimal path to the BS. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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38. A routing apparatus in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS), the apparatus comprising:
at least one RS for measuring quality of a link to the BS, generating link quality information using the measured link quality, and transmitting the link quality information to the MS. - View Dependent Claims (39, 40, 41, 42, 43, 44)
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45. A routing apparatus in a multi-hop relay cellular network including a mobile station (MS), a base station (BS), and at least one relay station (RS), the apparatus comprising:
the MS for receiving link quality information generated through measurement of quality of a link from each of the RSs to the BS, selecting an optimal path to the BS using the link quality information, and transmitting information on the selected optimal path to the BS. - View Dependent Claims (46, 47, 48, 49, 50, 51)
Specification