Abstract: The present invention relates to a wireless communication system and a method for managing a cache server in the wireless communication system, the invention includes a step for checking a regional cache server to transmit contents when a DNS (Domain Name System) request a message for receiving contents acquired from a terminal, and a step for transmitting the contents by the cache server according to a contents request message received from the terminal. These steps can prevent the same data from being transmitted several times through a wireless communication network. Therefore, network usage associated with the service is reduced, and the network can be used more efficiently.

Abstract: The present invention relates to a method for processing information between mobile communication systems in order to prevent the degradation of user-experienced performance when different types of mobile communication networks are used. The method for processing information at user equipment (UE) to improve user-experienced performance of a mobile communication system includes performing a data communication through a first network and receiving, from a policy server, a routing policy including a validity condition which is information about a condition of designating a UE status for handover. The method further includes, in the handover, if a searched second network satisfies the validity condition, performing the data communication through the second network. Accordingly, a network for data transmission can be selected using a routing policy created in consideration of a UE status or a network status, thereby enhancing user-experienced performance.

Abstract: The present invention relates to a system configuration and an apparatus for preventing the infringement of user privacy, and for collecting and analyzing information regardless of the service feature and type, while a system providing a context aware service collects and analyzes user information. The present invention discloses a method of configuring and using a context analyzer and a device profile database in order for the system providing the context aware service to collect and analyze information regardless of the service feature and type.

Abstract: The present disclosure relates to a technology for providing a service of effectively transmitting and receiving data by simultaneously using a 3GPP system and a non-3GPP system in a network in which the 3GPP system and the non-3GPP system coexist. A communication method of a non-3GPP access network entity according to embodiments of the present disclosure includes receiving overload status information from a gateway; receiving a session management request message from a user equipment (UE); and transmitting a session management reject message comprising a back-off timer to the UE. According to the embodiment of the present disclosure, when a specific PDN (or APN) is overloaded, the overload state can be controlled.

Abstract: According to an embodiment of the present invention, the invention discovers an address of a LGW, which can be sued in HeNB, determines whether session continuity is supported or not when a terminal using the LGW is moved to another HeNB in a network wherein a structure supporting Session Continuity and a structure not supporting Session Continuity are mixed, and processes active mode mobility and idle mode mobility based on the same. To this end, an embodiment of the present invention provides a method for transmitting the LGW and HeNB ID association information through DNS and S1AP, and a method for processing idle mode mobility and active mode mobility by using LGW information and HeNB ID association information in MME.

Abstract: A method and an apparatus are provided in a first radio access technology (RAT). Mobility history information is generated including information on a time duration while in a second RAT. It is identified whether the terminal is in a Radio Resource Control (RRC) connected mode. The mobility history information is transmitted to a base station if the terminal is in the RRC connected mode.

Abstract: The present invention relates to a method and apparatus for managing a Local IP Access (LIP A) connection in a local network system. The method of managing a LIP A connection of UE in a connected state according to an embodiment of the present invention includes the steps of a source home base station for UE determining a handover of the UE; when the handover of the UE is determined, determining whether a target home base station is a Long Term Evolution (LTE) release 10 or a Pre Rel-11 HeNB; and when the target home base station is a Pre Rel-11 HeNB, disconnecting the LIP A connection of the UE. According to an embodiment of the present invention, the mobility of UE having a LIPA PDN connection can be efficiently controlled in a local network where a Rel-11 H(e)NB and a Pre Rel-11 H(e)NB exist together.

Abstract: A method for a Mobility Management Entity (MME) to control a connection of a User Equipment (UE) in a mobile communication system is provided. The method includes a first standby method including an MME in a wireless communication system that includes predicting an overload durating time when an overload duration time that is predicted, transmitting to an enhanced Node B (eNodeB) information on the reconnection method of the UE that is decided, wherein the plurality of reconnection methods represent methods for the UE attempting reconnection with the MME after a second standby time that is longer than the first standby time, and an MME reselection method for the UE attempting the reconnection with an MME which is different from the MME.

Abstract: A method and system for transmitting a message to a terminal is provided, and the method for transmitting a message in a message transmission system including an Inter-Working Function (IWF) identified by a Representative Mobile Subscriber Integrated Services Digital Network Number (R-MSISDN) according to an embodiment of the present invention includes transmitting, at transmission side, a message including the R-MSISDN and an address of a recipient terminal to the IWF; extracting, at the IWF, the address of the recipient terminal from the message; acquiring, at the IWF, routing information using the address of the recipient terminal; rebuilding, at the IWF, the message using the routing information; and transmitting, at the IWF, the rebuilt message to the recipient terminal based on the routing information. The method according to an embodiment of the present invention is advantageous to transmit a message in case where the recipient routing information is not provided.

Abstract: The present disclosure relates to a technology for providing a service of effectively transmitting and receiving data by simultaneously using a 3GPP system and a non-3GPP system in a network in which the 3GPP system and the non-3GPP system coexist. A communication method of a non-3GPP access network entity according to embodiments of the present disclosure includes receiving overload status information from a gateway; receiving a session management request message from a user equipment (UE); and transmitting a session management reject message comprising a back-off timer to the UE. According to the embodiment of the present disclosure, when a specific PDN (or APN) is overloaded, the overload state can be controlled.

Abstract: Disclosed is an apparatus and a method of establishing an interface between entities in a local network. A stand-alone local H(e)NB network has a structure in which one or more H(e)NBs are separated from one or more L-GWs in order to support mobility of a user equipment. The one or more H(e)NBs or the one or more L-GWs provide an information management device with information necessary for establishing an interface and receive information necessary for establishing the interface with a target entity as a response to the provision of the information. The one or more H(e)NBs or the one or more L-GWs establish the interface with the target entity based on the received information.

Abstract: The present invention relates to a method and apparatus for transmitting information to a terminal of a specific group using multicast transmission equipment in a mobile communication system. The method of the present invention comprises: an information receiving step of receiving, from an information provider, information to be transmitted to the terminal; a selection step of selecting either a cell broadcasting service multicast transmission scheme or a multimedia broadcast multicast service multicast transmission scheme in accordance with the size of the received information; and a multicast transmission step of multicast transmitting the information to the terminal of the specific group in accordance with the selected transmission scheme.

Abstract: A method, performed by a mobile management entity (MME), for providing a voice call service to a user equipment (UE) in a mobile communication system and the MME are provided. The method includes receiving, from a mobile management entity (MME), a first message for paging to provide the voice call service to the UE; and sending, to the MME, a second message including a cause associated with a domain change from a packet switching (PS) domain to a circuit switching (CS) domain, wherein, if the MME receives the second message, a third message for requesting suspension of a bearer to provide a service for the UE is sent to a gateway in the PS domain.

Abstract: A method and system for generating an allowed list based on regions for a wireless terminal are disclosed. The method generates an allowed list based on regions to control network access of a stationary wireless terminal, and includes: sending, by the wireless terminal, an attach request to a network; creating, by the network, an allowed list that contains information on regions in which the wireless terminal is permitted to access the network; and controlling, by the network, network access of the wireless terminal on the basis of the allowed list. Hence, the allowed list, which stores information regarding regions in which the MTC terminal 110 is permitted to access the network, may be dynamically created by the terminal or the MME.

Abstract: A method and a device for managing resources of a base station in a wireless communication system is provided. The method comprises: calculating an average resource use of serving resources, which are used as downlinks from a serving base station to a plurality of communication terminals; selecting one of the communication terminals, which has a maximum interference from a neighbor base station, if the calculated average resource use exceeds a preset threshold; and making a reservation for at least one of neighbor resources used as downlinks from the neighbor base station, the at least one neighbor resource corresponding to the serving resource for the selected communication terminal, so that the neighbor base station may decrease transmission power in the at least one neighbor resource.

Abstract: The present invention relates to a method and apparatus for managing a Local IP Access (LIP A) connection in a local network system. The method of managing a LIP A connection of UE in a connected state according to an embodiment of the present invention includes the steps of: a source home base station for UE determining a handover of the UE; when the handover of the UE is determined, determining whether a target home base station is a Long Term Evolution (LTE) release 10 or a Pre Rel-11 HeNB; and when the target home base station is a Pre Rel-11 HeNB, disconnecting the LIP A connection of the UE. According to an embodiment of the present invention, the mobility of UE having a LIPA PDN connection can be efficiently controlled in a local network where a Rel-11 H(e)NB and a Pre Rel-11 H(e)NB exist together.

Abstract: A method, performed by a mobile management entity (MME), for providing a voice call service to a user equipment (UE) in a mobile communication system and the MME are provided. The method includes sending, to an evolved node B (eNB), a first message for paging to provide the voice call service to the UE; receiving, from the eNB, a second message including a cause associated with a domain change from a packet switching (PS) domain to a circuit switching (CS) domain; and sending, to a gateway in the PS domain, a third message for requesting suspension of a bearer to provide a service for the UE.

Abstract: A handover method and apparatus for facilitating a handover of a user equipment to a femto cell in a wireless communication system supporting both the femto and macro cells. When a handover condition is detected, the user equipment acquires identity information of a target femto cell base station from system information transmitted by the target femto cell base station, decides whether to handover to the target femto cell base station, based on the identity information; and transmits a measurement report message including the identity information to a serving base station of the user equipment, when the handover is to be made.

Abstract: A method is provided that creates signaling climate data records (CDR) via and a mobile communication system on a network, in order to charge signaling messages sent by user equipment (UE). The invention proposes two embodiments of the method for creating signaling CDR where an MME which has received signaling messages from UE notifies a PGW with a signaling CDR creation function of the message reception, and the PGW creates the signaling CDR. The MME can charge for the signaling message transmitted from the UE, without the additional components.

Abstract: The present invention relates to a method and apparatus for controlling transmission power of the base station in a wireless communication system and includes calculating signal-to-noise ratio of a target component carrier and recovering the signal-to-noise ratio to be equal to or greater than a threshold by increasing a transmission power to a predetermined level and requesting, when the signal-to-noise ratio is less than a predetermined threshold, a neighbor base station to decrease the transmission power. According to the present invention, it is possible to suppress the inter-cell interference and improve channel utilization efficiency, resulting in improvement of the throughput of the wireless communication system.