Spectrum management device, system and method, and computer-readable storage medium

A spectrum management system, comprising:

• a plurality of secondary systems forming a plurality of coexistence groups, each of the plurality of secondary systems comprising an access point;
• a primary spectrum management device configured to:
• determine a first interference relation diagram among the plurality of coexistence groups, wherein in the first interference relation diagram points represent coexistence groups, and a line between two points represents presence of interference between two coexistence groups represented by the two points;
• determine a weight of each of a plurality of color groups, wherein each of the plurality of color groups comprises one or more coexistence groups and a particular color group comprises two or more coexistence groups, and the weight of the particular color group is determined to be a maximum value of weights of the two or more coexistence groups in the particular color group;
• and
• allocate spectrum resources for each of the plurality of coexistence groups according to the first interference relation diagram, such that two coexistence groups represented by two points not connected by a line use the same spectrum resources, and two coexistence groups represented by two points connected by a line use different spectrum resources,
• wherein the spectrum resources are allocated for each color group according to the weight of each color group, such that a magnitude of the allocated spectrum resources for each color group is directly proportionate to the weight;
• and
• one or more secondary spectrum management devices each configured to receive, from the primary spectrum management device, spectrum resources allocated for a coexistence group managed by the secondary spectrum management device,
• wherein the one or more secondary systems are mobile communication systems configured to use the allocated spectrum resources only when the allocated spectrum resources are not being used by a primary system.

A spectrum management method, comprising:

• determining a first interference relation diagram among a plurality of coexistence groups each comprising a plurality of secondary systems, each of the plurality of secondary systems comprising an access point, wherein in the first interference relation diagram points represent coexistence groups, and a line between two points represents presence of interference between two coexistence groups represented by the two points;
• determining a weight of each of a plurality of color groups, wherein each of the plurality of color groups comprises one or more coexistence groups and a particular color group comprises two or more coexistence groups, and the weight of the particular color group is determined to be a maximum value of weights of the two or more coexistence groups in the particular color group;
• and
• allocating spectrum resources for each of the plurality of coexistence groups according to the first interference relation diagram, such that two coexistence groups represented by two points not connected by a line use the same spectrum resources and two coexistence groups represented by two points connected by a line use different spectrum resources,
• wherein the spectrum resources are allocated for each color group according to the weight of each color group, such that a magnitude of the allocated spectrum resources for each color group is directly proportionate to the weight, and
• wherein the one or more secondary systems are mobile communication systems configured to use the allocated spectrum resources only when the allocated spectrum resources are not being used by a primary system.