摘要 |
PURPOSE: A load control method of a base station based on an adaptive wireless transmission method is provided to control a load in a base station. CONSTITUTION: A monitoring unit measures a load of a base station(S101). A comparison unit compares the load with a defined threshold(S103). A load control unit changes an operation of a first wireless unit corresponding to the comparison from the comparison unit(S107,S113). The load control unit controls the load of the base station(S111,S117). The first wireless unit transmits a wireless signal to the base station. The first wireless unit is operated by receiving a digital signal from the base station. [Reference numerals] (1) Is higher than the upper limit threshold? or; (2) Is lower than the lower limit threshold?; (AA) Start; (BB) End; (S101) Measuring a load; (S103) Comparing the load with the threshold; (S107) Transmission method : spatial multiplexing→diversity; (S109,S115) Checking a channel condition of a user terminal; (S111) Sequential application from the user terminal which channel state is bad; (S113) Transmission method : diversity→spatial multiplexing; (S117) Sequential application from the user terminal which channel state is good |