The invention provides a system, method and base station server. According to an embodiment, a system for converting between higher-layer packets and lower-layer packets comprises a downlink base station server and an uplink base station client. The downlink base station server performs conversion of at least one downlink higher-layer packet to at least one downlink lower-layer packet by: receiving the at least one downlink higher-layer packet; converting the at least one downlink higher-layer packet to the at least one downlink lower-layer packet; and transmitting the at least one downlink lower-layer packet to a downlink base station client for transmission over a downlink channel to a downlink user device. The uplink base station client performs conversion of at least one uplink lower-layer packet to at least one uplink higher-layer packet and transmits the at least one uplink higher-layer packet to an uplink base station server.