Communication control device, communication control method and information processing apparatus
A communication control device that acquires first interference information indicating a first interference from communication involving a communication node that is not controlled by the communication control device and second interference information indicating a second interference from communication involving another communication node that is controlled by the communication control device. The communication control device classifies the communication nodes into groups related to a decision of a radio resource that is available for use by a communication node based on the first interference information and the second interference information.
1. A communication control device, comprising:
a memory; and
processing circuitry configured to
provisionally set a radio resource allocable to each communication node of a plurality of communication nodes that are control targets;
acquire interference information indicating an interference, from a communication node that is not a control target, with respect to each communication node of the plurality of communication nodes;
classify the plurality of communication nodes into a plurality of groups based on the interference information with respect to the plurality of communication nodes; and
decide a radio resource allocable to each communication node of the plurality of communication nodes based on the provisionally set radio resources, wherein
the plurality of groups includes at least a first group and a second group,
a communication node classified into the first group has a higher degree of interference than a degree of interference of a communication node classified into the second group, and
to decide the radio resource allocable to each communication node of the plurality of communication nodes, the processing circuitry is configured to
decide a first allocation result, the first allocation result indicating the radio resource allocable to each of one or more communication nodes classified into one group of the first group or the second group, and
decide a second allocation result based on the first allocation result, the second allocation result indicating the radio resource allocable to each of one or more communication nodes classified into another group of the first group or the second group, the another group being different than the one group.
2. The communication control device according to claim 1 , wherein the plurality of groups correspond to an order in which the radio resource is decided.
3. The communication control device according to claim 1 , wherein the second group is decided after the first group.
4. The communication control device according to claim 1 , wherein the processing circuitry decides one or more radio resource candidates, having a smaller level of interference among two or more radio resource candidates, as the radio resource for a communication node classified into the first group.
5. The communication control device according to claim 1 , wherein the second group is decided before the first group.
6. The communication control device according to claim 1 , wherein
the interference information indicates the interference in each of two or more radio resource candidates, and
a degree of the interference corresponds to a number of radio resource candidates for which a level of the interference is larger a predetermined threshold value.
7. The communication control device according to claim 1 , wherein
the plurality of communication nodes are communication nodes with a higher priority than one or more low priority communication nodes of a control target, and
the processing circuitry further decides the radio resource allocable to each of one or more low priority communication nodes based on a decision result of the radio resource with respect to the plurality of communication nodes.
8. The communication control device according to claim 7 , wherein
the processing circuitry is further configured to determine whether a predetermined condition, for a fourth interference with communication involving the plurality of communication nodes, is satisfied with respect to each of the one or more low priority communication nodes, and
the processing circuitry decides the radio resource allocable to each of one or more low priority communication nodes, based on a determination result with respect to the predetermined condition.
9. The communication control device according to claim 1 , wherein the interference is by a downlink signal transmitted by the communication node that is not a control target or an uplink signal transmitted to the communication node that is not a control target.
10. The communication control device according to claim 1 , wherein the communication node that is not a control target includes a communication node of a primary system.
11. The communication control device according to claim 1 , wherein
the communication node that is not a control target includes a first base station of a macro cell, and
each of the plurality of communication nodes is a base station of a small cell that overlaps the macro cell partially or entirely.
12. The communication control device according to claim 1 , wherein the communication node that is not a control target includes a communication node controlled by another communication control device.
13. The communication control device according to claim 1 , wherein
the plurality of communication nodes is part of a secondary system that uses a part or whole of a spectrum assigned to a primary system, and
the processing circuitry is configured to control communication by the plurality of communication nodes.
14. The communication control device according to claim 1 , wherein the plurality of communication nodes are white space devices.
15. A communication control method, comprising:
provisionally setting a radio resource allocable to each communication node of a plurality of communication nodes that are control targets;
acquiring interference information indicating an interference, from a communication node that is not a control target, with respect to each communication node of the plurality of communication nodes;
classifying, by processing circuitry of a communication control device, the plurality of communication nodes into a plurality of groups based on the interference information with respect to the plurality of communication nodes; and
deciding, by the processing circuitry, a radio resource allocable to each communication node of the plurality of communication nodes based on the provisionally set radio resources, wherein
the plurality of groups includes at least a first group and a second group,
a communication node classified into the first group has a higher degree of interference than a degree of interference of a communication node classified into the second group, and
the deciding includes:
deciding, by the processing circuitry, a first allocation result that indicates the radio resource allocable to each of one or more communication nodes classified into one group of the first group or the second group, and
deciding, by the processing circuitry, a second allocation result based on the first allocation result, the second allocation result indicating the radio resource allocable to each of one or more communication nodes classified into another group of the first group or the second group, the another group being different than the one group.
16. The communication control method according to claim 15 , wherein the plurality of groups correspond to an order in which the radio resource is decided.
17. The communication control method according to claim 15 , wherein the second group is decided after the first group.
18. A non-transitory computer readable medium storing computer executable instructions which, when executed by processing circuitry of an information processing device, causes the information processing device to:
provisionally set a radio resource allocable to each communication node of a plurality of communication nodes that are control targets;
acquire interference information indicating an interference, from a communication node that is not a control target, with respect to each communication node of the plurality of communication nodes;
classify the plurality of communication nodes into a plurality of groups based on the interference information with respect to the plurality of communication nodes; and
decide a radio resource allocable to each communication node of the plurality of communication nodes based on the provisionally set radio resources, wherein
the plurality of groups includes at least a first group and a second group,
a communication node classified into the first group has a higher degree of interference than a degree of interference of a communication node classified into the second group, and
to decide the radio resource allocable to each communication node of the plurality of communication nodes, the information processing device is configured to
decide a first allocation result, the first allocation result indicating the radio resource allocable to each of one or more communication nodes classified into one group of the first group or the second group, and
decide a second allocation result based on the first allocation result, the second allocation result indicating the radio resource allocable to each of one or more communication nodes classified into another group of the first group or the second group, the another group being different than the one group.
19. The non-transitory computer readable medium according to claim 18 , the plurality of groups corresponds to an order in which the radio resource is decided.
20. The non-transitory computer readable medium according to claim 18 , the second group is decided after the first group.