Operation method of communication node supporting mobility in communication network

An operation method of a first communication node in a mobile xhaul network comprising a plurality of communication nodes each of which has mobility, the operation method comprising:

• allowing the first communication node to be discovered by a second communication node through a discovery procedure;
• establishing a link with the second communication node discovering the first communication node;
• performing an attach procedure with a third communication node performing network-wide resource management under support of the second communication node, wherein the third communication node assigns a unique ID to the first communication node through the attach procedure;
• and
• changing an operation mode of the first communication node from an idle mode to a slave mode after establishing the link,
• wherein an operation mode of the first communication node is changed from an idle mode to a master mode after establishing the link, a node in the master mode allocates resources to nodes in the slave mode for communications, and a node in the idle mode does not communicate with any other nodes, and
• wherein a state of the first communication node is changed from a deregistered state into a registered state when the attach procedure between the first communication node and the third communication node is completed, and the state of the first communication node is changed from an unlinked state to a linked state after establishing the link.