Patent application number | Description | Published |
20090279515 | Apparatus and a method for service continuity between umts network and wlan - The present invention relates to a method for guaranteeing service continuity between a 3GPP network and a non-3GPP network. According to the exemplary embodiment of the present invention, when a mobile station receiving a service from the 3GPP network moves to the non-3GPP network or it moves back to the 3GPP network from the non-3GPP network, an inter-working gateway inter-works with a SGSN or a GGSN through the 3GPP network to provide a seamless service to a mobile subscriber. | 11-12-2009 |
20090286527 | Apparatus and a method for service continuity between umts network and wlan network - Service continuity is provided between a 3GPP network and a non-3GPP network. When a mobile station having accepted service in the 3GPP network moves to the non-3GPP network or returns from the non-3GPP network to the 3GPP network, an interworking gateway is interworked with a GGSN through a universal tunnel using a packet data network, and accordingly a mobile subscriber may accept seamless service. | 11-19-2009 |
20110085650 | CALLER AUTHENTICATION SYSTEM AND METHOD FOR PHISHING PREVENTION - A caller authentication system that may enable a called party to be provided with identification information of a caller may be provided. The caller authentication system, including: a communication system to transmit, when a call request signal is received from a calling terminal of a caller, network information and a telephone number of the calling terminal to a certificate authority server, and to request identification of the caller, the network information and the telephone number being included in the call request signal, to transmit, when identification information of the caller is received from the certificate authority server in response to the identification request, the identification information to a called terminal of a called party, and to enable the identification information to be displayed on the called terminal. | 04-14-2011 |
20110105140 | APPARATUS AND METHOD FOR CONNECTION SETUP OF COMPONENT CARRIER IN MOBILE COMMUNICATION SYSTEM OF CARRIER AGGREGATION ENVIRONMENT - Provided is an apparatus and method for setting up a connection of a component carrier (CC) in a mobile communication system of a carrier aggregation (CA) environment. In the mobile communication system operating the CA environment, it is possible to change a CC in an initial connection while maintaining a connection state. When a radio link failure and the like occurs, it is possible to quickly change a disconnected CC using a connected component carrier. | 05-05-2011 |
20110117914 | METHOD AND APPARATUS FOR DEREGISTRATION OF PERSONAL NETWORK ELEMENT(PNE) IN 3GPP PERSONAL NETWORK(PN) - Disclosed is a control method of user equipment (UE) to deregister a personal network element (PNE) in a personal network (PN), the control method including receiving a deregistration request message from the PNE via a personal area network (PAN) internal communication means in order to deregister the PNE registered to the PN and subordinate to the UE, transmitting a request message for deregistration of the PNE to a session control device controlling a session with respect to the PN in response to the deregistration request message, receiving a response message corresponding to the request message for deregistration of the PNE from the session control device, and transmitting the response message to the PNE via the PAN internal communication means in order to notifying deregistration of the PNE. | 05-19-2011 |
20110151882 | IDLE-TO-ACTIVE STATE SHIFT APPARATUS IN CARRIER AGGREGATION ENVIRONMENT - Provided is a technology that enables a terminal to quickly perform an idle-to-active state shift and to quickly perform a handover using a carrier aggregation characteristic. The terminal may attempt a Radio Resource Control (RRC) connection establishment using a plurality of carrier components. When the RRC connection establishment using one of the carrier components succeeds, the terminal may transmit an RRC reconfiguration complete message to a base station. | 06-23-2011 |
20110200006 | HANDOVER METHOD OF MOBILE TERMINAL BETWEEN HETEROGENEOUS NETWORKS - The present invention relates to a handover method of a mobile terminal between heterogeneous networks. The present invention may provide a handover method ensuring service continuity between heterogeneous networks by transmitting an IP address of a mobile terminal to a mobile IP management server and activating or inactivating a PDP context when the mobile terminal connected to one of a mobile communication network or a wireless LAN is handed over to the other. | 08-18-2011 |
20110275328 | SCHEME FOR MONITORING BATTERY OF MACHINE TYPE COMMUNICATION DEVICE - Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power. | 11-10-2011 |
20120120822 | APPARATUS AND METHOD FOR HANDOVER USING RECEIVED SIGNAL STRENGTH AND RADIAL VELOCITY IN TERMINAL - Provided is a handover apparatus and method for a terminal based on a received signal strength (RSS) and a radial velocity. The handover method may measure an RSS from a currently accessed base station and RSSs from candidate base stations for handover, may measure a radial velocity with respect to the currently accessed base station and radial velocities with respect to the candidate base stations for handover, and may perform a handover by determining a base station for handover based on the measured RSSs and the measured radial velocities when the RSS from the currently accessed base station is less than or equal to a reference RSS. | 05-17-2012 |
20120163296 | METHOD OF TRANSMITTING SMALL AMOUNT OF UPLINK DATA AND METHOD OF RECEIVING SMALL AMOUNT OF UPLINK DATA - Disclosed is a method of transmitting and receiving a small amount of uplink data. A method of transmitting uplink data includes detecting uplink data to be transmitted, determining whether or not uplink data transmission is necessary only once, transmitting a service request message including information instructing that a data radio bearer not be generated when it is determined that uplink data transmission is necessary only once, starting a radio resource control (RRC) connection setup process, and performing the uplink data transmission once using a signaling radio bearer without generating the data radio bearer with reference to the information instructing that the data radio bearer not be generated, during the RRC connection setup process, when it is determined that \ uplink data transmission is necessary only once. | 06-28-2012 |
20120163313 | CALL PROCESSING METHOD FOR USE IN MACHINE-TYPE COMMUNICATION TERMINAL - Disclosed is a call processing method for use in a machine-type communication terminal. The call processing method includes transmitting, by a terminal, a radio resource control (RRC) connection request message to a base station, receiving, by the terminal, an RRC connection setup message from the base station, receiving, by the terminal, an uplink (UL) resource allocation grant message from the base station in a state in which a service request message and a buffer status report message are not transmitted to the base station, and transmitting, by the terminal, a message for call processing corresponding to the UL resource allocation grant message. It is possible to rapidly and efficiently perform a call processing procedure and lengthen the life span of the terminal by reducing power consumption of the terminal that uses battery as an energy source. | 06-28-2012 |
20120165058 | APPARATUS AND METHOD FOR CONTROLLING RANDOM ACCESS OF MACHINE TYPE COMMUNICATION DEVICE AND WIRELESS COMMUNICATION SYSTEM PROVIDING MACHINE TYPE COMMUNICATION SERVICE - Provided are an apparatus and method for controlling random access of a machine type communication (MTC) device in a wireless communication network providing an MTC service, and a wireless communication system providing an MTC service. The method includes inserting, at a base station, information about a random access preamble group for an MTC device and information about a random access time for an MTC device in system information (SI), and transmitting, at the base station, the SI to at least one MTC device. | 06-28-2012 |
20120182925 | SCHEDULING APPARATUS AND METHOD, USER EQUIPMENT, AND RELAY-BASED MOBILE COMMUNICATION SYSTEM - Provided are a scheduling apparatus and method, an user equipment, and a relay-based mobile communication system. The scheduling apparatus receives information on a channel state of the access zone from the eNB UE separately from the information on the channel state of the relay zone, performs scheduling for the eNB UE in a subsequent relay zone temporally following the relay zone on the basis of the information on the channel state of the relay zone, and performs scheduling for the eNB UE in a subsequent access zone temporally following the access zone on the basis of the information on the channel state of the access zone. | 07-19-2012 |
20150017926 | SCHEME FOR MONITORING BATTERY OF MACHINE TYPE COMMUNICATION DEVICE - Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power. | 01-15-2015 |
20150085846 | RADIO ACCESS METHOD FOR REDUCING ROUTING OVERHEAD IN COGNITIVE RADIO ADHOC NETWORKS - A radio access method for use in a radio access device in cognitive radio ad-hoc networks, the radio access method comprising: comparing additional information about neighboring radio access devices, which exist in the cognitive radio ad-hoc networks, in a second layer of the radio access device with additional information about the neighboring radio access devices in a third layer of the radio access device in the cognitive radio ad-hoc networks; and generating a routing control message when the additional information of the second layer is different from the additional information of the third layer to broadcast the routing control message. | 03-26-2015 |