Communication control apparatus, communication control method, and communication system
地域：
Tokyo
摘要
There is provided a communication control apparatus including a parameter acquisition unit that acquires parameters to calculate coverage of secondary systems from a secondary usage node operating the secondary systems on a frequency channel allocated to a primary system, a calculation unit that calculates the coverage of the secondary systems using the parameters acquired by the parameter acquisition unit, and an interference control unit that notifies a detection node that detects neighboring secondary systems of the secondary systems, of coverage information representing the coverage of the secondary systems calculated by the calculation unit.
說(shuō)明書(shū)
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This application is a continuation of U.S. application Ser. No. 15/988,662, filed May 24, 2018 (U.S. Pat. No. 10,349,412, issued Jul. 9, 2019), which is a continuation of U.S. application Ser. No. 15/482,325, filed Apr. 7, 2017 (U.S. Pat. No. 10,004,075, issued Jun. 19, 2018), which is a continuation of U.S. Ser. No. 15/041,550, filed Feb. 11, 2016 (U.S. Pat. No. 9,686,796, issued Jun. 20, 2017), which is a continuation of U.S. application Ser. No. 14/685,762, filed Apr. 14, 2015 (U.S. Pat. No. 9,301,309, issued Mar. 29, 2016), which is a continuation of U.S. application Ser. No. 13/983,324, filed Aug. 2, 2013 (U.S. Pat. No. 9,060,367, issued Jun. 16, 2015), which is a National Stage application of International Application No. PCT/JP2012/055824, filed Mar. 7, 2012, which claims the benefit of priority from Japanese Patent Application No. 2011-078073, filed Mar. 31, 2011, the entire contents of each are incorporated herein by reference.
The present disclosure relates to a communication control apparatus, a communication control method, a program, and a communication system.
As one of measures to mitigate exhaustion of frequency resources in the future, the discussion about secondary usage of a frequency is under way. The secondary usage of a frequency is to use a part or all of a frequency channel preferentially assigned to some system secondarily by another system. In general, the system to which a frequency channel is preferentially assigned is called a primary system and the system that secondarily uses the frequency channel is called a secondary system.
權(quán)利要求
The invention claimed is:1. An electronic device; comprising:circuitry configured to obtain parameters to calculate a coverage area of secondary systems from a secondary usage node operating the secondary systems on a frequency channel allocated to a primary system; calculate a power level of a wireless signal of the secondary usage node assumed in each area in a plurality of geographical areas based on the obtained parameters; determine whether each area in the plurality of geographical areas belongs to the coverage area based on the calculated power level; and generate coverage information, the coverage information indicating whether each area in the plurality of geographical areas belongs to the coverage area. 2. The electronic device of claim 1 , wherein the parameters indicate at least one of a position, an antenna height, a maximum transmission power, an antenna gain, and a minimum reception sensitivity of the secondary usage node. 3. The electronic device of claim 1 , wherein the coverage information includes map information indicating a relative geographical position of each area in the plurality of geographical areas that belongs to the coverage area. 4. The electronic device of claim 1 , wherein the coverage information includes information indicating a reference position and a radius of the coverage area. 5. The electronic device of claim 1 , wherein the circuitry is further configured to:notify an external communication control apparatus of the coverage information; receive from the external communication control apparatus a neighboring system list identifying other secondary systems that may cause interference; and control an operation of one of the secondary systems based on the neighboring system list. 6. The electronic device of claim 1 , wherein the circuitry is included in a communication control apparatus that controls an operation of one of the secondary systems. 7. An electronic device, comprising:circuitry configured to obtain first parameters to calculate a first coverage area of a first secondary system from a first secondary usage node operating the first secondary system, obtain second parameters to calculate a second coverage area of a second secondary system from a second secondary usage node operating the second secondary system, calculate a first power level of a first wireless signal of the first secondary usage node assumed in each area in a plurality of geographical areas based on the obtained first parameters; calculate a second power level of a second wireless signal of the second secondary usage node in each area in the plurality of geographical areas based on the obtained second parameters; determine whether each area in the plurality of geographical areas belongs to the first coverage area based on the calculated first power level; determine whether each area in the plurality of geographical areas belongs to the second coverage area based on the calculated second power level; determine an overlapping region in which the first coverage area overlaps the second coverage area, and generate coverage information, the coverage information indicating whether each area in the plurality of geographical areas belongs to the overlapping region. 8. The electronic device of claim 7 , wherein the first and second parameters each indicate at least one of a position, an antenna height, a maximum transmission power, an antenna gain, and a minimum reception sensitivity of the secondary usage node. 9. The electronic device of claim 7 , wherein the coverage information includes map information indicating a relative geographical position of each area in the plurality of geographical areas that belongs to the overlapping region. 10. The electronic device of claim 7 , wherein the coverage information includes map information indicating a relative geographical position of each area in the plurality of geographical areas in which interference between the first secondary system and the second secondary system is present. 11. The electronic device of claim 7 , wherein the circuitry is further configured to control an operation of one of the secondary systems based on the coverage information. 12. The electronic device of claim 7 , wherein the circuitry is included in a communication control apparatus that controls an operation of one of the secondary systems. 13. A method for managing communication, comprising:obtaining parameters to calculate a coverage area of secondary systems from a secondary usage node operating the secondary systems on a frequency channel allocated to a primary system; calculating a power level of a wireless signal of the secondary usage node assumed in each area in a plurality of geographical areas based on the obtained parameters; determining whether each area in the plurality of geographical areas belongs to the coverage area based on the calculated power level; and generating coverage information, the coverage information indicating whether each area in the plurality of geographical areas belongs to the coverage area. 14. The method of claim 13 , wherein the parameters indicate at least one of a position, an antenna height, a maximum transmission power, an antenna gain, and a minimum reception sensitivity of the secondary usage node. 15. The method of claim 13 , wherein the coverage information includes map information indicating a relative geographical position of each area in the plurality of geographical areas that belongs to the coverage area. 16. The method of claim 13 , wherein the coverage information includes information indicating a reference position and a radius of the coverage area. 17. The method of claim 13 , further comprising:notifying an external communication control apparatus of the coverage information; receiving from the external communication control apparatus a neighboring system list identifying other secondary systems that may cause interference; and controlling an operation of one of the secondary systems based on the neighboring system list.
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