# US 10,873,945 B2 · Communication control apparatus, communication control method, and communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,945 B2 - Document ID: US10873945B2 - Status: Granted - Kind: B2 - Application number: 16/439,721 - Filed: 2019-06-13 - Published: 2019-09-26 - Granted: 2020-12-22 - Earliest claimed: 2011-03-31 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Ryo Sawai - Web page: https://patentgrep.com/patent/US10873945B2 ## CPC - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 52/243: {taking into account interferences} - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - H04W 72/541: using the level of interference - H04W 28/18: Negotiating wireless communication parameters - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the coverage information includes information indicating a reference position and a radius of the coverage area. ### Claim 5 (depends on 1) 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. ### Claim 6 (depends on 1) 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. ### Claim 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. ### Claim 8 (depends on 7) 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. ### Claim 9 (depends on 7) 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. ### Claim 10 (depends on 7) 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. ### Claim 11 (depends on 7) 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. ### Claim 12 (depends on 7) 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. ### Claim 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. ### Claim 14 (depends on 13) 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. ### Claim 15 (depends on 13) 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. ### Claim 16 (depends on 13) The method of claim 13, wherein the coverage information includes information indicating a reference position and a radius of the coverage area. ### Claim 17 (depends on 13) 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.