Patent ID: 8532029

Claim:
A computer-implemented Transport Network Layer (TNL) connection setup method performed in a base station, the base station equipped with an “Radio Frequency (RF)” module and modem unit that are used for performing signal processing and data transmission/reception with a user equipment or a neighboring base station, the method comprising: monitoring , with a downlink receiver in the base station, Physical Cell Identity (PCI) values of neighboring cells, the downlink receiver separate from the RF module and modem unit that are used for performing signal processing and data transmission/reception; when it is monitored that the PCI values are changed, acquiring “Internet Protocol (IP)” addresses of neighboring base stations corresponding to the changed PCI values; determining whether it is necessary to perform a new TNL connection setup with respect to the neighboring base stations, based on the changed PCI values and the acquired IP addresses; and when it is determined that it is necessary to perform the new TNL connection setup, attempting the TNL connection setup with the acquired IP addresses, wherein the TNL connection setup is achieved without using an interface message with respect to a Mobility Management Entity (MME) or a serving-GateWay (S-GW), without help of a user equipment (UE) connected to the base station, and without influencing transmission/reception of other data, which are performed at the same time with the TNL connection setup.