Patent application number | Description | Published |
20080291874 | HANDOVER APPARATUS AND METHOD IN A HETEROGENEOUS WIRELESS COMMUNICATION SYSTEM - Provided is a handover method, in which a call manager of a network having a Circuit Switching (CS) network, a Long Term Evolution (LTE) network, and an Internet Protocol Multimedia Subsystem (IMS) network, provides handover, from the LTE network to the CS network, to a terminal that uses one radio channel. The handover method includes upon receiving a request for handover from the terminal via a node of the LTE network, establishing a line to a Mobile Switching Center (MSC) of the CS network; sending, to the call manager, a request for a change in a session to another party's terminal in communication with the terminal, to establish an Internet Protocol (IP) bearer between the call manager and the other party's terminal; and sending a handover command to the terminal during the establishment of an IP bearer, to establish a radio channel to the base station of the CS network. | 11-27-2008 |
20090005048 | APPARATUS AND METHOD FOR CALL HANDOVER BETWEEN PACKET NETWORK SYSTEM AND CIRCUIT NETWORK SYSTEM - A method and apparatus for performing handover on a voice call between a packet network system and a circuit network system is provided. Considering a communication environment where a UE cannot simultaneously use radio resources of both the next generation mobile communication system (LTE) and the legacy mobile communication system (e.g., GSM/WCDMA), the present invention proposes an SCSE for performing signal translation between the packet switched network and the circuit switched network and anchoring a voice call in the application level, and supports a continuous voice call using the SCSE. | 01-01-2009 |
20090252078 | RELAY STATION AND METHOD OF OPERATING RELAY STATION IN MULTI-HOP COMMUNICATION SYSTEM - A replay station and a method of operating the relay station in a multi-hop communication system are provided. A method of operating a relay station of a multi-hop communication system includes monitoring a delay of the relay station, determining whether the monitored delay exceeds a predetermined threshold, and controlling the relay station to be handed over to another upper relay station that is different from a connecting upper relay station. | 10-08-2009 |
20100311320 | Apparatus and method for transmitting/receiving notification message in a broadcasting system, and system thereof - A terminal apparatus is provided for receiving a broadcast service from a broadcasting system. A receiver receives a notification message from the broadcasting system. A message parser parses the notification message received by the receiver according to a certain format. A controller determines whether the received notification message is a notification message to be used by a user or a notification message to be used by the terminal based on content of the notification message parsed by the message parser, and performs an operation according to the determination result. | 12-09-2010 |
20120034909 | ROAMING SERVICE METHOD IN A MOBILE BROADCASTING SYSTEM, AND SYSTEM THEREOF - A roaming service method in a mobile broadcasting system and a system thereof are provided. A terminal receives a service guide from a corresponding visited service provider (Visited SP) when the terminal moves to a roaming area. The terminal transmits a roaming request message for requesting a purchase item allowable for individual services to a home service provider (Home SP) based on the received service guide. Upon receipt of the roaming request message, the Home SP negotiates roaming availability and allowable scope for each individual service with the Visited SP where the terminal is located, based on the roaming request message. The Home SP transmits the roaming availability and allowable scope for the individual service, negotiated with the Visited SP, to the terminal. | 02-09-2012 |
20130273836 | RELAY STATION AND METHOD OF OPERATING RELAY STATION IN MULTI-HOP COMMUNICATION SYSTEM - A replay station and a method of operating the relay station in a multi-hop communication system are provided. A method of operating a relay station of a multi-hop communication system includes monitoring a delay of the relay station, determining whether the monitored delay exceeds a predetermined threshold, and controlling the relay station to be handed over to another upper relay station that is different from a connecting upper relay station. | 10-17-2013 |
20140016618 | HANDOVER APPARATUS AND METHOD IN A HETEROGENEOUS WIRELESS COMMUNICATION SYSTEM - A method and apparatus are provided for handing over from a Long Term Evolution (LTE) network to a Circuit Switching (CS) network by a call manager in a wireless communication system. The method includes receiving, from an Enhanced Node B (ENB) of the LTE network, a handover required message for a Packet Switching (PS) to CS handover from the LTE network to the CS network, when the PS to CS handover is decided based on measurement reports of a User Equipment (UE); sending, to a Mobile Switching Center (MSC) of the CS network, a PS to CS handover request message including an International mobile subscriber identity (IMSI) for identifying the UE and a target IDentifier (ID) for a target cell of the CS network; receiving a PS to CS handover response message from the MSC; and sending, to the UE via the ENB, a handover command message. | 01-16-2014 |
20150103729 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING ACCESS INFORMATION OF BROADCAST SERVICE IN A BROADCASTING SYSTEM, AND SYSTEM THEREOF - A broadcasting system for providing access information of a broadcast service, wherein a transmission apparatus generates the access information for at least one of a broadcast network and an interaction network, from which the broadcast service is transmitted, and transmits the access information to a terminal via a specific communication network. A reception apparatus receives the access information of the broadcast service via the communication network, analyzes the received access information to determine a network from which the broadcast service is provided, among the broadcast network and the interaction network, and sets an access address for reception of the broadcast service. | 04-16-2015 |