Abstract: The present invention provides a terminal connection control apparatus, including: a cell position determining unit which provides information on a cell in which a terminal is located; a requested data speed determining unit which figures out a data speed requested by the terminal; and a connection cell control unit which controls a connection cell of the terminal based on cell position information and the requested data speed.

Abstract: The present invention provides a terminal connection control apparatus, including: a cell position determining unit which provides information on a cell in which a terminal is located; a requested data speed determining unit which figures out a data speed requested by the terminal; and a connection cell control unit which controls a connection cell of the terminal based on cell position information and the requested data speed.

Abstract: Provided are machine type communication (MTC) gateway user equipment (MGUE) and an MTC data relay method of the same. The MGUE includes a first radio matching unit configured to process a signal having a first frequency band characteristic and provide radio access matching with a base station, a second radio matching unit configured to process a signal having a second frequency band characteristic and provide radio access matching with at least one MTC device, a radio access switching processor configured to convert data respectively output by the first radio matching unit and the second radio matching unit and provide the converted data, and a controller configured to find an identifier of at least one MTC device related to MTC control information received from the first radio matching unit and control the second radio matching unit to transmit the MTC control information to the MTC device.

Abstract: Disclosed is a network service system including a terminal selectively providing packets of an information centric networking (ICN) protocol and an Internet protocol, a smart digital unit (DU) identifying whether the packets provided from the terminal correspond to an ICN protocol packet or an Internet protocol packet to transfer the packets through different paths depending on a type of the identified packet, and an ICN node receiving the ICN protocol packet from the smart DU to provide contents.

Abstract: Disclosed are handover and connection of a terminal and control of connection of a terminal by a base station in a communication environment including a plurality of communication cells having different ranges of communication coverage. According to an exemplary embodiment, a terminal of a wireless communication system including a plurality of hierarchical cells determines whether the terminal accesses a microcell in a macrocell as the terminal moves based on whether a control signal transmitted from a micro-base station managing the microcell is detected in a communication environment including a plurality of hierarchical cells divided according to communication coverage, determines whether the terminal connects to the microcell based on a connection criteria for the microcell, and connects to the microcell when the connection criteria for the microcell are satisfied and conducts communications using the macrocell when the connection criteria for the microcell are not satisfied.

Abstract: A method for establishing a communication link of a first communication device includes: selecting a second communication device for establishing a communication link on a screen of the first communication device; transmitting a request for a communication link to the selected second communication device; receiving a communication link response from the second communication device; and establishing a communication link between the first communication device and the second communication device.

Abstract: A group service providing method and apparatus suitable for use in a wireless communication system. A group registration method for providing a group service to a master terminal and a slave terminal, the group registration method may comprise receiving and storing subscriber profile information of the master terminal from an associated communication network server in response to a group service registration request from the master terminal; generating a group related to the group service registration request and a group key corresponding to the generated group and transmitting to the master terminal a group generation completion message including the group key; receiving and storing subscriber profile information of the slave terminal dependent on the master terminal from the communication network server; and transmitting the group key to the slave terminal with reference to the subscriber profile information of the slave terminal.

Abstract: Provided are machine type communication (MTC) gateway user equipment (MGUE) and an MTC data relay method of the same. The MGUE includes a first radio matching unit configured to process a signal having a first frequency band characteristic and provide radio access matching with a base station, a second radio matching unit configured to process a signal having a second frequency band characteristic and provide radio access matching with at least one MTC device, a radio access switching processor configured to convert data respectively output by the first radio matching unit and the second radio matching unit and provide the converted data, and a controller configured to find an identifier of at least one MTC device related to MTC control information received from the first radio matching unit and control the second radio matching unit to transmit the MTC control information to the MTC device.

Abstract: An apparatus and method for determining the position of a target object in a wireless local area network (WLAN) environment are provided. According to the apparatus and method, it is possible for a user to easily identify each neighboring target object and to precisely select any desired neighboring target object. Therefore, it is possible to improve user convenience.

Abstract: A group service providing method and apparatus suitable for use in a wireless communication system. A group registration method for providing a group service to a master terminal and a slave terminal, the group registration method may comprise receiving and storing subscriber profile information of the master terminal from an associated communication network server in response to a group service registration request from the master terminal; generating a group related to the group service registration request and a group key corresponding to the generated group and transmitting to the master terminal a group generation completion message including the group key; receiving and storing subscriber profile information of the slave terminal dependent on the master terminal from the communication network server; and transmitting the group key to the slave terminal with reference to the subscriber profile information of the slave terminal.

Abstract: A method for establishing a communication link of a first communication device by selecting a target from a screen includes: selecting a second communication device for establishing a communication link on a screen of the first communication device; transmitting a request for a communication link including information regarding the establishment of a link on the basis of the first communication device required for establishing a communication link to the selected second communication device; receiving a communication link response including information regarding the establishment of a communication link on the basis of the second communication device required for establishing a communication link from the second communication device; and establishing a communication link between the first communication device and the second communication device by using the information regarding the establishment of a link on the basis of the first communication device and the information regarding the establishment of a link

Abstract: The invention once stores PCM data to a memory and after a predetermined time is elapsed, reading in again and making to output whereby makes to delay the PCM data. The invention comprises a memory for once storing a PCM data converted to parallel, a delay time setting circuit for setting a delay time of PCM data, and a comparator and control circuit for comparing a setting value from the delay time setting circuit and a high order 10 bits writing address of the memory and thereby providing an address and control signal for either initiating a high order 10 bits reading address of the memory or else for writing or reading to the memory.

Abstract: The invention is a method for controlling an echo canceller circuit including a data storage for storing a program for processing digital signals to cancel an echo in PCM encoded voice data, a plurality of digital signal processors each having a reset terminal and which are downloaded with the program which is executed by the plurality of digital signal processor to carry out removal of the echo in the PCM encoded voice data, and a one chip controller for performing control functions of the echo canceller.