Radio communication system, radio station, network operation management apparatus, and network optimization method
First Claim
1. A radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, wherein a first radio station comprises:
- at least one interface connected with at least one of a second radio station and a network apparatus, wherein the network apparatus manages the second radio station;
receive, from the second radio station or the network apparatus via the at least one interface, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; and
responsive to the request, send to the second radio station or the network apparatus via the at least one interface, the information indicating the change in statistical communication quality in the first cell of the first radio station.
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Abstract
A radio communication system, a radio station, a network operation management apparatus, and a network optimization method are provided that make it possible to avoid performance degradation in the entire system when network optimization is performed individually. In the radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, a radio station (10) notifies information related to a change in statistical communication quality in a cell under the radio station (10) to another radio station (20) or a network apparatus (30) managing the another radio station.
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Citations
34 Claims
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1. A radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, wherein a first radio station comprises:
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at least one interface connected with at least one of a second radio station and a network apparatus, wherein the network apparatus manages the second radio station; receive, from the second radio station or the network apparatus via the at least one interface, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; and responsive to the request, send to the second radio station or the network apparatus via the at least one interface, the information indicating the change in statistical communication quality in the first cell of the first radio station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A first radio station in a radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, the first radio station comprising:
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at least one interface connected with at least one of a second radio station and a network apparatus the manages the second radio station; and at least one processor configured to; receive, from the second radio station or the network apparatus via the at least one interface, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; and responsive to the request, send to the second radio station or the network apparatus via the at least one interface the information indicating the change in statistical communication quality. - View Dependent Claims (15, 16, 17, 18)
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19. A second radio station in a radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, the second radio station comprising:
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at least one interface connected with at least one of a first radio station and a network apparatus, wherein the network apparatus manages the second radio station; and at least one processor configured to; send, to the first radio station via the at least one interface, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; and receive, from the first radio station via the at least one interface, the information indicating the change in statistical communication quality. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A network operation management apparatus which manages a network including a first radio station that performs network optimization based on statistical communication quality in at least one cell, the network operation management apparatus comprising:
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at least one interface connected with at least one of the first radio station and a second radio station; and at least one processor configured to; send, to the second radio station via the at least one interface, a request for information indicating a change in statistical communication quality in a second cell of the second radio station, wherein the change was caused by execution of network optimization in a first cell of the first radio station; and receive, from the second radio station via the at least one interface, the information indicating the change in statistical communication quality. - View Dependent Claims (26, 27)
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28. A network optimization method in a radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, the method comprising:
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receiving, at a first radio station, from a second radio station or a network apparatus, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the network apparatus manages the second radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; and responsive to the request, sending to the second radio station or the network apparatus, the information indicating the change in statistical communication quality. - View Dependent Claims (29, 30, 31, 32)
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33. A network optimization method for a first radio station in a radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, the method comprising:
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receiving, at the first radio station, from a second radio station or an upper-level network apparatus, a request for information indicating a change in statistical communication quality in a first cell of the first radio station, wherein the upper-level network apparatus manages the second radio station, wherein the change was caused by execution of network optimization in a second cell of the second radio station; responsive to the request, calculating the information indicating a change in statistical communication quality; and sending, to the second radio station or the upper-level network apparatus, the information indicating the change in statistical communication.
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34. A network optimization method for a first radio station in a radio communication system in which radio stations perform network optimization based on statistical communication quality in at least one cell, the method comprising:
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sending, at the first radio station, to a second radio station, a request for information indicating a change in statistical communication quality in a second cell of the second radio station, wherein the network apparatus manages the first radio station, wherein the change was caused by execution of network optimization in a first cell of the first radio station; and receiving the information indicating a change in statistical communication quality from the second radio station.
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Specification