Abstract: Disclosed are a method and apparatus for managing a cloud virtual base station system. The present invention includes setting initial resources and driving or downloading an execution file or environment file of the cloud virtual base station system and monitoring or managing a state for a failure, radio resources, or the execution file or the environment file of the cloud virtual base station system.

Abstract: Disclosed are a D2D direct communication method and apparatus in a cloud base station system. The present invention includes receiving a measurement result, including information about D2D proximity or interference from other devices, from each of a first device and a second device, determining whether or not to admit D2D direct communication between the first device and the second device based on the measurement results, sending radio resource information to a second base station and receiving radio resource information of the second base station if it is determined that the D2D direct communication is admitted, negotiating radio resources, allocated for the D2D direct communication, with the second base station using the internal primitive, and allocating radio resources to the first device based on the negotiation.

Abstract: A method of operating a memory device includes: generating an internal read command in response to a received masked write command, the internal read command being generated one of (i) during a write latency associated with the received masked write command, (ii) after receipt of a first bit of masked write data among a plurality of bits of masked write data, and (iii) in synchronization with a rising or falling edge of a clock signal received with an address signal corresponding to the masked write command; reading, in response to the internal read command, a plurality of bits of data stored in a plurality of memory cells, the plurality of memory cells corresponding to the address signal; and storing, in response to an internal write command, the plurality of bits of masked write data in the plurality of memory cells.

Abstract: A semiconductor memory device may comprise: at least one bank, each of the at least one bank including a plurality of memory cells; an error-correcting code (ECC) calculator configured to generate syndrome data for detecting an error bit from among parallel data bits read out from the plurality of memory cells of each of the at least one bank; an ECC corrector separated from the ECC calculator, the ECC corrector configured to correct the error bit from among the parallel data bits by using the syndrome data and configured to output error-corrected parallel data bits; and/or a data serializer configured to receive the error-corrected parallel data bits and configured to convert the error-corrected parallel data bits into serial data bits.

Abstract: A method of managing a service mode of a femto cell base-station and access allowance for a terminal is disclosed. The method of managing access allowance includes receiving a first access allowance change request for a terminal, and transmitting a second access allowance change request for the terminal to a mobility management entity (MME) in response to the first access allowance change request. With the method of the example embodiments of the present invention, the service mode of the femto base-station and the access allowed terminal can be changed in real time according to a situation of the user. Accordingly, quality of service can be improved and efficient management of the femto base-station can be achieved through interference control between the macro base-station and the femto base-station.

Abstract: An apparatus and method for assigning a Physical Cell Identity (PCI) of a Home eNodeB (HeNB) are provided. The apparatus may distribute PCIs into a plurality of PCI groups, and may enable a PCI group to be assigned to a cell so that the assigned PCI group may be different from a PCI group assigned to a neighboring cell, and that an unassigned PCI in the assigned PCI group may be assigned to an HeNB within a single cell.

Abstract: Provided are a method and an apparatus for power saving of a femto base station operating as a CSG cell in a wireless communication system. A femto base station according to an exemplary embodiment of the present invention includes: a reception unit receiving signals from adjacent second femto base stations; a transmission unit transmitting signals to second femto base stations, and a control unit controlling to be transitioned to an active mode when a mode transition command is received from at least one second femto base station while operating in a sleep mode, in a wireless communication system constituted by a plurality of femto base stations using automatic neighbor relation (ANR).

Abstract: An antifuse memory device includes an antifuse memory cell, a reference current generation unit, and a comparison unit. The antifuse memory cell includes an antifuse. The reference current generation unit provides a reference current selected from a plurality of reference currents. The comparison unit compares an intensity of a cell current flowing through the antifuse with an intensity of the reference current and provides an output signal corresponding to a result of the comparison.

Abstract: A method and apparatus for avoiding a collision of an uplink preamble using a cell identifier. In a case of installing a new small-sized base station in a mobile communication system, the method and apparatus may set a code parameter, a time parameter, and a frequency parameter, differently from a neighboring small-sized base station using the cell identifier even when dedicatedly using a preamble in a contention-free scheme to avoid a collision of the preamble, so that a random access preamble may be managed without occurrence of the collision with the neighboring small-sized base stations.

Abstract: Provided is a method of assigning a physical layer cell identity (PCI) to a femtocell base station. The method includes obtaining location information from a femtocell base station and storing the location information, a first step of determining whether a PCI does not collide and is not confused with PCIs of base stations present in an area having a radius of a first multiple of a the femtocell radius and a second step of determining whether a PCI does not collide and is not confused with PCIs of base stations present in an area having a radius of a second multiple of the femtocell radius when a PCI does not collide and is not confused with PCIs of base stations is not found in an area having a radius of a first multiple of the femtocell radius.

Abstract: A semiconductor memory device having improved refresh characteristics includes a memory array including a plurality of memory cells; a test unit configured to test refresh characteristics of the memory array and generate a first fail address signal; a storage unit configured to store the first fail address signal; and a refresh unit configured to perform a refresh operation on the memory array, wherein the refresh unit is configured to receive the first fail address signal from the storage unit, perform the refresh operation on a first memory cell that does not correspond to the first fail address signal according to a first period, and perform the refresh operation on a second memory cell that corresponds to the first fail address signal according to a second period that is shorter than the first period.

Abstract: The present invention relates to a short range wireless communication device for providing an application service based on an area. In particular, an apparatus for providing an application service based on an area in a small cell including a femtocell base station or a WiFi Access Point, the apparatus including a communication unit to receive a list of application services from an Application Service Provisioning Server, select and download at least one application service from the received list, an application service database to store the at least one downloaded application service, a service controller to install the at least one downloaded application service, or uninstall an installed application service, a user equipment access detector to detect a user equipment entering or exiting a service area, and a user equipment database to store an identifier and information of the user equipment entering or exiting the service area.

Abstract: An application component communication method and an apparatus using the same are provided to an SCA-based system for efficiently performing data communication between SCA-based application components by using a dynamic connection manager. The application component communication apparatus includes an application module provided in the SCA-based system and driven, an application packaged by a plurality of application components, and an application factory for generating the application and driving the application components by parsing XML files. The dynamic connection manager registers port information of each of the application components, and establishes a connection for data communication between the application components according to the port information. According to the present invention, data communication between the respective application components can be efficiently performed by using the dynamic connection manager.

Abstract: An apparatus for driving a loadable device component, the apparatus including: the loadable device component providing an application with a loading mechanism that is classified according to a load type property; a core framework module component defining a kind of the load type property; at least one eXtensible Markup Language (XML) data component containing configuration information and generation information of the loadable device component; and a device manager component driving a corresponding loadable device component after parsing the XML data component.

Abstract: Provided is a method and apparatus for avoiding a collision of a preamble in a base station. When a new base station is installed in a mobile communication system and in this instance, an exclusive preamble using a contention-free scheme is employed to avoid a preamble collision, at least one of a code parameter, a time parameter, and a frequency parameter used in a preamble of the new base station may be set to be different from a code parameter, a time parameter, and a frequency parameter used in a preamble of a neighboring cell, whereby it is possible to manage a random access preamble without causing a collision between cells.

Abstract: An optimization system that minimizes a radio link failure may be provided. In the optimization system, a base station may include a measured data collecting unit to collect wireless environment data measured by a terminal included in a cell, a threshold managing unit to manage a threshold value associated with a radio link failure in a wireless section, an analyzing unit to manage a variable associated with a radio link failure, and to analyze a cause of the radio link failure, and a parameter changing unit to change a parameter value based on an analysis result of the analyzing unit.

Abstract: Provided are a method and an apparatus for power saving of a femto base station operating as a CSG cell in a wireless communication system. A femto base station according to an exemplary embodiment of the present invention includes: a reception unit receiving signals from adjacent second femto base stations; a transmission unit transmitting signals to second femto base stations, and a control unit controlling to be transitioned to an active mode when a mode transition command is received from at least one second femto base station while operating in a sleep mode, in a wireless communication system constituted by a plurality of femto base stations using automatic neighbor relation (ANR).

Abstract: Provided are a method and an apparatus for power saving of a CSG femto base station in a wireless communication system. A method of controlling a femto base station according to an exemplary embodiment of the present invention includes: a macro base station to which the femto base station belongs to verify whether or not terminals registered in the femto base station exist in a service coverage of the macro base station, verifying an operation mode of the femto base station if at least one of the registered terminals exists in the service coverage of the macro base station on the basis of the verification result; and allowing the macro base station to direct the switching to an active mode to the femto base station when the femto base station operates in a sleep mode on the basis of the verification result.

Abstract: A method and apparatus for avoiding a collision of an uplink preamble using a cell identifier. In a case of installing a new small-sized base station in a mobile communication system, the method and apparatus may set a code parameter, a time parameter, and a frequency parameter, differently from a neighboring small-sized base station using the cell identifier even when dedicatedly using a preamble in a contention-free scheme to avoid a collision of the preamble, so that a random access preamble may be managed without occurrence of the collision with the neighboring small-sized base stations.

Abstract: Provided is a management apparatus and method for controlling a user-owned communication device for its operation according to a use specification and providing external service. An aspect of the present invention provides a management apparatus and method for operating, by a owner or an external user, a communication device according to a description of a use specification in which an operation plan, a right of access, a range of service provision, and the like are specified, in a use of the communication device owned as a property of a natural or juridical person, and the like.