Cooperative load balancing method based on multihop relay in heterogeneous wireless network

The invention discloses a cooperative load balancing method based on multihop relay in a heterogeneous wireless network, comprising the following steps of: (1) when a new call sent by a user terminal arrives, judging whether a local base station is a heavy load base station or not according to the current load; (2) when the local base station is the heavy load base station, carrying out consultation between the heavy load base station and an adjacent base station the distance from which to the heavy load base station is less than a constant value, and selecting business needing to be transferred in the heavy load base station and a target base station accepting the transferred business in the adjacent base station; (3) carrying out consultation between the heavy load base station and the target base station to establish a multihop relay route with hop limit from the user terminal to the target base station; and (4) switching or transferring the business needing to be transferred to the ...