Abstract: Provided is a method of operating a network device for train control in a wireless communication system, the method including: generating control information for train control; providing a first control command to a first base station through a first interface based on the control information; and providing a second control command to a second base station through a second interface based on the control information, wherein the first control command or the second control command is provided to the first base station or the second base station through the first interface or the second interface via a first core network for train control, and one of the first base station and the second base station is connected to a second core network.

Abstract: A self-organizing network (SON) and an operating method of the SON. An operating method of a base station in the SON includes receiving a parameter setting message including a first version identification (ID) and setting values of parameters, storing the setting values to match the first version ID, and setting parameters of the base station based on the setting values.

Abstract: A base station of a carrier aggregation system performs interference control of a first component carrier in which interference exceeds a threshold value among a plurality of component carriers based on an ABS pattern and changes the first component carrier to an available new component carrier, when interference of the first component carrier exceeds a threshold value after the interference control is performed.

Abstract: A cross carrier scheduling method is provided by a terminal. The terminal receives a control element including cross carrier scheduling configuration information from a base station, and sets a scheduling cell of a secondary cell in accordance with the cross carrier scheduling configuration information. The terminal starts to monitor scheduling information of the secondary cell at the scheduling cell from a time predefined between the base station and the terminal.

Abstract: A self-organizing network (SON) and an operating method of the SON. An operating method of a base station in the SON includes receiving a parameter setting message including a first version identification (ID) and setting values of parameters, storing the setting values to match the first version ID, and setting parameters of the base station based on the setting values.

Abstract: According to an exemplary embodiment of the present invention, a master base station selects a target serving cell in which a state is changed, among the serving cells of at least one slave base station set in the terminal, generates a MAC control element which instructs a state change of the target serving cell, and then directly transmits the MAC control element to the terminal in the case of an uplink asynchronous state between the target slave base station managing the target serving cell and the terminal.

Abstract: A base station of a mobile communication system divides an ultra wideband into a plurality of unit bands, uses a plurality of beam component carriers corresponding to the L3 CP dedicated unit band as a coverage layer by grouping in one cell in the L3 CP dedicated unit band and uses a plurality of beam component carriers corresponding to the UP dedicated unit band in the UP dedicated unit band as a plurality of capacitor layers by grouping in a plurality of cells of a smaller size than that of the grouping.

Abstract: A semiconductor integrated circuit device and a method of fabricating the same are disclosed. The semiconductor integrated circuit device includes a resistive layer and an encapsulation film formed to surround an outer wall of the resistive layer. The encapsulation film contains an oxygen absorbing ingredient.

Abstract: A carrier aggregation-based interference control method and apparatus for small base stations are disclosed. The present invention comprises setting a primary component carrier (PCC) as a first carrier and setting a secondary component carrier (SCC) as a second carrier, monitoring a signal-to-interference plus noise ratio (SINR) of the first carrier or the second carrier, and determining whether the SINR of the first carrier is smaller than a predetermined threshold.

Abstract: A semiconductor integrated circuit device and a method of fabricating the same are disclosed. The semiconductor integrated circuit device includes a resistive layer and an encapsulation film formed to surround an outer wall of the resistive layer The encapsulation film contains an oxygen absorbing ingredient.

Abstract: A base station of a mobile communication system divides an ultra wideband into a plurality of unit bands, uses a plurality of beam component carriers corresponding to the L3 CP dedicated unit band as a coverage layer by grouping in one cell in the L3 CP dedicated unit band and uses a plurality of beam component carriers corresponding to the UP dedicated unit band in the UP dedicated unit band as a plurality of capacitor layers by grouping in a plurality of cells of a smaller size than that of the grouping.

Abstract: Provided is a method of managing mobility of a user equipment. The method includes: establishing by a first base station a communication with the user equipment; transmitting by the first base station a Coordinated Multiple Point (CoMP) addition request to a second base station; establishing by the first and second base stations a CoMP communication with the user equipment according to the CoMP addition request; transmitting by the first base station an anchor cell change request to the second base station; and operating the second base station as an anchor cell of the CoMP communication according to the anchor cell switch request.

Abstract: A base station of a carrier aggregation system performs interference control of a first component carrier in which interference exceeds a threshold value among a plurality of component carriers based on an ABS pattern and changes the first component carrier to an available new component carrier, when interference of the first component carrier exceeds a threshold value after the interference control is performed.

Abstract: A base station of a carrier aggregation system sets a time division duplex (TDD) component carrier of a plurality of TDD component carriers to a primary serving cell of a terminal and sets at least one frequency division duplex (FDD) component carrier of a plurality of FDD component carriers to a secondary serving cell of the terminal, and when a hybrid automatic repeat request-round trip time (HARQ RTT) value of a TDD component carrier of a primary serving cell of the terminal does not satisfy a quality of service (QoS) requirement of a service that the terminal requests, the base station changes a HARQ feedback transmitting resource that is set to the terminal.

Abstract: According to an exemplary embodiment of the present invention, a master base station selects a target serving cell in which a state is changed, among the serving cells of at least one slave base station set in the terminal, generates a MAC control element which instructs a state change of the target serving cell, and then directly transmits the MAC control element to the terminal in the case of an uplink asynchronous state between the target slave base station managing the target serving cell and the terminal.

Abstract: A cross carrier scheduling method is provided by a terminal. The terminal receives a control element including cross carrier scheduling configuration information from a base station, and sets a scheduling cell of a secondary cell in accordance with the cross carrier scheduling configuration information. The terminal starts to monitor scheduling information of the secondary cell at the scheduling cell from a time predefined between the base station and the terminal.

Abstract: A carrier aggregation-based interference control method and apparatus for small base stations are disclosed. The present invention comprises setting a primary component carrier (PCC) as a first carrier and setting a secondary component carrier (SCC) as a second carrier, monitoring a signal-to-interference plus noise ratio (SINR) of the first carrier or the second carrier, and determining whether the SINR of the first carrier is smaller than a predetermined threshold.

Abstract: Disclosed is an operating method of a femto base station which includes broadcasting a plurality of public land mobile network (PLMN) identities; broadcasting a plurality of closed subscriber group (CSG) identities correlated with the plurality of PLMN identities; and establishing wireless communication with user equipment based on the broadcasted PLMN and CSG identities.

Abstract: Provided are a method and apparatus for controlling inter-cell interference. In accordance with the present invention, a Wi-Fi signal including interference control information is received from a neighboring cell, the interference control information is transmitted to a small cell transmission/reception module, and a small cell signal is transmitted or received by controlling inter-cell interference based on the interference control information.

Abstract: The present invention relates to a method of selecting, by an eNB, a PCC for UE in a multiple component carrier system. The method includes obtaining mobility state information about the UE and coverage information and load information about carriers managed by the eNB; determining whether or not a mobility state value of the UE is greater than a specific threshold based on the obtained mobility state information; and selecting the PCC based on the load information if, as a result of the determination, the mobility state value is greater than the specific threshold. In accordance with the present invention, a BS adaptively selects a PCC by taking the load state of a carrier (or cell), UE mobility velocity, and the coverage of each carrier (or cell) into consideration.