RADIO BASE STATION, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD
First Claim
1. A radio base station connected to a neighbor radio base station via inter-radio base station interface, the radio base station comprising:
- a radio communication section that performs radio communication with a user terminal using a UL/DL configuration indicating a configuration of uplink and downlink subframes in a radio frame;
an interference detecting section that measures and detects interference that the radio base station suffers from; and
a selecting section that uses an interference detection result as a basis to determine whether or not to apply a resource allocation-restricted inter-cell uplink/downlink orthogonalization scheme to each subframe.
1 Assignment
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Accused Products
Abstract
In order to avoid interference efficiently and control the amount of radio resources that are not used for interference avoidance, the present invention provides a radio base station connected to a neighbor radio base station via inter-radio base station interface. The radio base station has: a radio communication section that performs radio communication with a user terminal using a UL/DL configuration indicating a configuration of uplink and downlink subframes in a radio frame; an interference detecting section that measures and detects interference that the radio base station suffers from; and a selecting section that uses an interference detection result as a basis to determine which to apply to each subframe, between a resource allocation-unrestricted scheme and an inter-cell uplink/downlink orthogonalization scheme.
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Citations
10 Claims
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1. A radio base station connected to a neighbor radio base station via inter-radio base station interface, the radio base station comprising:
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a radio communication section that performs radio communication with a user terminal using a UL/DL configuration indicating a configuration of uplink and downlink subframes in a radio frame; an interference detecting section that measures and detects interference that the radio base station suffers from; and a selecting section that uses an interference detection result as a basis to determine whether or not to apply a resource allocation-restricted inter-cell uplink/downlink orthogonalization scheme to each subframe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A radio communication system in which a radio base station is connected to a neighbor radio base station via inter-radio base station interface,
the radio base station comprising: -
a radio communication section that performs radio communication with a user terminal using a UL/DL configuration indicating a configuration of uplink and downlink subframes in a radio frame; an interference detecting section that measures and detects interference that the radio base station suffers from; a selecting section that uses an interference detection result as a basis to determine which to apply to each subframe, between a resource allocation-unrestricted scheme and an inter-cell uplink/downlink orthogonalization scheme; and an interference section that transmits a communication scheme to apply to each subframe to the neighbor radio base station via the inter-radio base station interface, and the neighbor radio base station comprising; an interface section that receives information about the communication scheme from the radio base station; and an interference control section that uses the information about the communication scheme as a basis to perform interference control by applying either the resource allocation-unrestricted scheme or the inter-cell uplink/downlink orthogonalization scheme to each subframe.
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10. A radio communication method for a radio base station that is connected to a neighbor radio base station via inter-radio base station interface, the radio communication method comprising the steps of:
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performing radio communication with a user terminal using a UL/DL configuration indicating a configuration of uplink and downlink subframes in a radio frame; measuring and detecting interference that the radio base station suffers from; and using an interference detection result as a basis to determine which to apply to each subframe, between a resource allocation-unrestricted scheme and an inter-cell uplink/downlink orthogonalization scheme.
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Specification