| 摘要 |
A base station determines whether the base station is in an overload state on the basis of an available resource of the base station and a load state of a mobility management entity (MME), and transmits the call setup request to MME if the base station is determined to be in a non-overload state. MME determines whether MME is in the overload state on the basis of an available resource of MME and a load state of a gateway according to the call setup request transmitted from the base station, and transmits the call setup request to the gateway if MME is determined to be in the non-overload state. The gateway determines whether the gateway is in the overload state according to the call setup request transmitted from MME, and performs a call setup procedure if the gateway is determined to be in the non-overload state.
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