Abstract: An apparatus and method for operating multiple Operating Systems (OSs) in a multi-modem mobile communication terminal are provided. The apparatus includes a plurality of modems and a multiplexer/demultiplexer (MUX/DEMUX) module. The modems support an access to different wireless networks. The MUX/DEMUX module receives data of the corresponding wireless network from the modems, searches for OSs corresponding respectively to the modems with reference to a modem-OS mapping table, and provides data of the corresponding modems to the searched OSs.

Abstract: The present invention relates to a resource allocation device for minimizing delay of an uplink retransmission resource allocation process in a wireless communication system having a high data rate, and a method thereof. In the method, user data are received and an ACK/NACK state of the received data is determined, and when the NACK state of the received data is determined, retransmission resource allocation is requested, retransmission resources are allocated, and retransmission resource allocation information is generated to be transmitted.

Abstract: Disclosed herein are a lead-free solder alloy and a manufacturing method thereof. More specifically, disclosed are: a lead-free solder alloy, which comprises 0.8-1.2 wt % silver (Ag), 0.8-1.2 wt % copper (Cu), 0.01-1.0 wt % palladium (Pd), 0.001-0.1 wt % tellurium (Te), and a balance of tin (Sn), and thus has a melting point similar to those of prior lead-free solder alloys, excellent wettability, very low segregation ratio, and excellent weldability with a welding base metal, such that it improves temperature cycle performance and drop impact resistance simultaneously, when it is applied to electronic devices and printed circuit boards; a manufacturing method of the above alloy; and electronic devices and printed circuit boards which include the same.

Abstract: Provided is a method for retransmission in a mobile communication system; and, more particularly, to an integrated operation method of Automatic Retransmission Request (ARQ) and Hybrid Automatic Retransmission Request (HARQ) in a mobile communication system. The method includes the steps of: a) shifting to a 2nd layer waiting status upon receipt of 1st layer reception failure information in a sending status that a fragment block of 2nd layer transmission data is transmitted to the a receiver according to the predetermined retransmission number; b) shifting to a 1st layer receiving status upon receipt of 1st layer reception success information in the sending status; and c) shifting to the transmission completion status upon receipt of the 2nd layer reception success information in the sending status.

Abstract: Disclosed herein are a lead-free solder alloy and a manufacturing method thereof. More specifically, disclosed are: a lead-free solder alloy, which comprises 0.8-1.2 wt % silver (Ag), 0.8-1.2 wt % copper (Cu), 0.01-1.0 wt % palladium (Pd), 0.001-0.1 wt % tellurium (Te), and a balance of tin (Sn), and thus has a melting point similar to those of prior lead-free solder alloys, excellent wettability, very low segregation ratio, and excellent weldability with a welding base metal, such that it improves temperature cycle performance and drop impact resistance simultaneously, when it is applied to electronic devices and printed circuit boards; a manufacturing method of the above alloy; and electronic devices and printed circuit boards which include the same.

Abstract: The present invention relates to a wireless communication system having protocol architecture for reducing latency of a cellular system. In the protocol architecture of the wireless communication system in the cellular system, a physical layer supports wireless transmission of the cellular system and estimates a radio channel condition. A data link layer determines a data transmission mode based on a QoS of user data and the radio channel condition estimated by the physical layer and performs segmentation and assembly of the packet data, and a network layer establishes and releases a radio bearer for transmitting packet data transmitted from the data link layer and a control command. A control service access point is provided for control information transmission between the data link layer and the physical layer.

Abstract: According to the present invention, a wireless packet communication system having a protocol structure that can improve radio resource efficiency while reducing the amount of control information in packet transmission for radio resource allocation to a mobile station, and a radio resource allocation method of the system, is provided.

Abstract: A data transmission device transmits coded packets and a code for decoding the coded packets to a receiving device. The data transmission device retransmits the coded packets and the code to the receiving device when failing to receive feedback information on a decoding success state of the coded packets from the receiving device. Accordingly, the data transmission device can increase the radio resource efficiency in the wireless communication system.

Abstract: An apparatus and method for operating multiple Operating Systems (OSs) in a multi-modem mobile communication terminal are provided. The apparatus includes a plurality of modems and a multiplexer/demultiplexer (MUX/DEMUX) module. The modems support an access to different wireless networks. The MUX/DEMUX module receives data of the corresponding wireless network from the modems, searches for OSs corresponding respectively to the modems with reference to a modem-OS mapping table, and provides data of the corresponding modems to the searched OSs.

Abstract: The present invention relates to a resource allocation device for efficiently using resources by persistently allocating the resources in a wireless communication system, and a method thereof. In the method, a quality of service (QoS) configuration is received according to a predetermined service, persistent resource allocation is performed according to a resource allocation request corresponding to the QoS configuration, various retransmission methods are determined when performing the persistent resource allocation, transmission data are established according to the determined retransmission method, and the transmission data are transmitted.

Abstract: The present invention relates to a resource allocation device for minimizing delay of an uplink retransmission resource allocation process in a wireless communication system having a high data rate, and a method thereof. In the method, user data are received and an ACK/NACK state of the received data is determined, and when the NACK state of the received data is determined, retransmission resource allocation is requested, retransmission resources are allocated, and retransmission resource allocation information is generated to be transmitted.

Abstract: In order to transmit data between layers in a communication system, and ARQ controller determines a transmission method of a service packet according to QoS of the service packet of an upper layer, determines a retransmission method of the service packet according to the transmission method, generates a fragmentation block by fragmentizing and concatenating the service packet according to a transmission amount of the service packet determined by the transmission method, generates a data packet including the fragmentation block and fragmentation block information, adds radio link control information including the retransmission method to the data packet to generate a radio link control data packet, and transmits the radio link control data packet to a MAC layer.

Abstract: A terminal state controlling method and apparatus are provided. The terminal state includes a connected state and an idle state, and the connected state includes an active state and a dormant state. The active state includes a scheduling-ON state and a scheduling-OFF state. In the state controlling apparatus, a radio resource control (RRC) layer controls a transition between the active state and the dormant state, and a media access control (MAC) layer controls a transition between the scheduling-ON state and the scheduling-OFF state.

Abstract: Provided is a method for retransmission in a mobile communication system; and, more particularly, to an integrated operation method of Automatic Retransmission Request (ARQ) and Hybrid Automatic Retransmission Request (HARQ) in a mobile communication system. The method includes the steps of: a) shifting to a 2nd layer waiting status upon receipt of 1st layer reception failure information in a sending status that a fragment block of 2nd layer transmission data is transmitted to the a receiver according to the predetermined retransmission number; b) shifting to a 1st layer receiving status upon receipt of 1st layer reception success information in the sending status; and c) shifting to the transmission completion status upon receipt of the 2nd layer reception success information in the sending status.

Abstract: The present invention relates to a device for controlling a state of a terminal with respect to mobility management, and a method thereof. The state of the terminal includes a disconnected state and a connected state, the connected state includes an active state and an idle state, and the active state includes an active sub-state and a standby sub-state. The terminal in the active state updates location information for each cell, and the terminal in the idle state updates the location information for each radio access network registration area including a plurality of cells. The terminal in the active sub-state performs a handover when leaving a current cell. The terminal in the standby sub-state determines a quality of service (QoS) of packet data, and performs the handover or is set to be in the idle state according to the determined QoS.

Abstract: Provided is an application program launching method and system for improving security of an embedded Linux kernel by distributing superuser privileges. The method includes: searching security set information on an application program selected by a user; changing a user account for a processor of the application program to a user ID associated with the application program in the security set information; setting a capability for the processor according to setting information for the capability in the security set information; changing a basic directory for the processor according to a basic directory in the security set information; and launching the application program.

Abstract: Provided is a method for transmitting contents with limited system permissions. In the method, a content request is received from a client terminal. A download descriptor is transmitted to the client terminal in response to the content request, the download descriptor including information about the authentication and permission of the client terminal system that can be managed in the contents. A content transmission request is received from the client terminal that has received the download descriptor. Contents are transmitted to the client terminal in response to the content transmission request.

Abstract: A mobile communication terminal having a phonebook replays a stored message when an entry of the phonebook is selected using a speed dial number and the stored message is associated with the selected phonebook entry. The message may be the spoken name of the person associated with the selected phonebook entry thereby enabling the terminal user to have an audio confirmation of the party being called. The message may be recorded by the terminal microphone or may be captured from a connected call. Alternatively the message may be a text message that is synthesized to a voice message by a text-to-speech function.