Wireless communication method and wireless communication device

A method performed by a resource management apparatus for assigning resources, comprising:

• acquiring interference information from another resource management apparatus, the interference information comprising mutual interferences among a plurality of managed systems managed by the resource management apparatus and interferences of one or more non-managed systems not managed by the resource management apparatus to the plurality of managed systems;
• determining a communication resource for each of the managed systems based on the acquired interference information;
• notifying the corresponding managed system of the determined communication resource;
• determining, based on the acquired interference information a non-managed system which causes interference to each managed system;
• acquiring from the another resource management apparatus available communication resources of each managed system and each non-managed system;
• and
• determining, for the available communication resources of each managed system, a possibility that a non-unaged system which causes interference to the managed system uses a specific communication resource among the available communication resources, and determining the communication resource for the managed system based on the possibility.