Path selection method and device

A method for selecting a path, comprising:

• receiving, by a centralized control node, a path response message sent by at least one node, wherein the path response message comprises path information of a backhaul path from a first node to a target node;
• selecting, by the centralized control node, at least one backhaul path based on the path response message sent by the at least one node;
• and
• sending, by the centralized control node, a path acknowledgment message indicating the selected backhaul path to a node in the selected backhaul path.

An apparatus for selecting a path, comprising a memory, a transceiver and at least one processor;

• wherein the memory is configured to store computer programs, the transceiver is configured to receive and send data under control of the at least one processor, and the at least one processor is configured to read the computer programs in the memory to:
• send a path request message for acquiring a backhaul path from a first node to a target node through the transceiver;
• and
• determine at least one backhaul path based on a received path indication message.

An apparatus for selecting a path, comprising a memory, a transceiver and at least one processor;

• wherein the memory is configured to store computer programs, the transceiver is configured to receive and send data under control of the at least one processor, and the at least one processor is configured to read the computer programs in the memory to:
• receive a path request message sent by an adjacent first node for acquiring a backhaul path from the first node to a target node through the transceiver;
• and
• judge whether the second node can provide a backhaul service for the first node based on the path request message.

An apparatus for selecting a path, comprising a memory, a transceiver and at least one processor;

• wherein the memory is configured to store computer programs, the transceiver is configured to receive and send data under control of the at least one processor, and the at least one processor is configured to read the computer programs in the memory to:
• receive a path response message sent by at least one node through the transceiver, wherein the path response message comprises path information of a backhaul path from a first node to a target node;
• select at least one backhaul path based on the path response message sent by the at least one node;
• and
• send a path acknowledgment message indicating the selected backhaul path to a node in the backhaul path selected by the selecting module through the transceiver.