Hello, friend.
I don't think so. The base station controller is the connection point between the base transceiver station (BTS) and the mobile switching center (MSC). It also provides an interface for exchanging information between the base transceiver station (BTS) and the mobile switching center (MSC). A base station controller usually controls several base transceiver stations. Its main functions are to manage radio channels, establish and remove calls and communication links, and control the handoff of MSs in the control area.
The aggregation layer connects the access layer to the core layer and provides data aggregation, transmission, management, and distribution for the access layer. The aggregation layer provides policy-based connections for the access layer, such as address combination, protocol filtering, routing service, and authentication management. Network segment division, such as VLAN isolation, prevents problems on certain network segments from spreading and affecting the core layer. The aggregation layer also provides interconnection between virtual networks at the access layer and controls and restricts access from the access layer to the core layer to ensure the security and stability of the core layer. Aggregation devices generally use manageable Layer 3 switches or stacked switches to meet bandwidth and transmission performance requirements.