Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). a method for operating a terminal in a wireless communication system is provided. The method includes receiving information relating to a data session from a network node, determining a target node among nodes belonging to a second network based on the information relating to the data session, and performing a handover from a source node belonging to a first network to the target node.

Abstract: A communication method in a wireless communication system supporting device-to-device (D2D) communication is provided. The communication method includes transmitting a first message including information for identifying a relay to discover a relay user equipment (UE) that performs a relay function in the D2D communication, and receiving a second message including information about the relay UE that performs the relay function, from the relay UE that has received the first message, the second message being transmitted in response to the first message.

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: A method and an apparatus reduce overhead for data integrity checks in a wireless communication system. When receiving a message, a first Integrity Check Value (ICV) is compared with a second ICV to detect an integrity error in the message. When the integrity error exists in the message, a frequency of the integrity error is counted. When the frequency of the integrity error is more than a threshold, a key update procedure is performed. Therefore, the overhead of the information for integrity check may be reduced in the wireless communication system.

Abstract: In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

Abstract: A communication method in a wireless communication system supporting device-to-device (D2D) communication is provided. The communication method includes transmitting a first message including information for identifying a relay to discover a relay user equipment (UE) that performs a relay function in the D2D communication, and receiving a second message including information about the relay UE that performs the relay function, from the relay UE that has received the first message, the second message being transmitted in response to the first message.

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: In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

Abstract: Disclosed is a fifth generation (5G) or pre-5G communication system for supporting higher data transmission rates beyond fourth generation (4G) communication systems such as LTE systems. A data communication method includes receiving information about a reception rate of a signal from a second user equipment (UE) performing device-to-device (D2D) communication with a first UE, receiving location information about at least one of the first UE and the second UE, determining a data communication configuration for the D2D communication based on the reception rate information and the location information, and transmitting the determined data communication configuration to at least one of the first UE and the second UE.

Abstract: Disclosed is a method for web-based real-time communication by a user equipment (UE), including transmitting, to a web server, a message requesting information about an Internet protocol multimedia subsystem (IMS) network to which the UE is to access, receiving, from the web server, address information of the IMS network to which the UE is to access, in response to the transmitted message, when receiving, from the web server, an instruction to hold establishment of a bearer for a web-based real-time data service, restricting transmission of a signaling message for the web-based real-time data service until the bearer is established, and when sensing establishment of the bearer, transmitting, to an access point of the IMS network, at least one subsequent signaling message for the web-based real-time data service through the bearer.

Abstract: A method and apparatus are provided for web-based real-time communication. The method includes receiving, from a user equipment (UE), a message requesting information about an Internet Protocol Multimedia Subsystem (IMS) network to which the user equipment (UE) is to access; transmitting, to the UE, address information of the IMS network to which the UE is to access, in response to the received message; and transmitting, to a network device of the IMS network, information about the UE to request establishment of a bearer for a web-based real-time data service. A signaling message for the web-based real-time data service is transmitted between the UE and the IMS network through the bearer.

Abstract: The present invention pertains to a method and apparatus for setting a mobile communication terminal. A method for setting a mobile communication terminal according to one embodiment of the present invention may comprise the steps of: transmitting, by the mobile communication terminal, an information provision request message to an information provision entity; and receiving, by the mobile communication terminal, information for access to the mobile communication terminal, which is generated by the information provision entity, from the information provision entity. According to one embodiment of the present invention, a user can directly set a service provider during initial use of a terminal or efficiently change the service provider.

Abstract: Provided is a method by a user equipment (UE) for providing a sponsoring service in a wireless communication system, the method comprising: determining at least one UE to be provided with the sponsoring service, accessing to a server providing the sponsoring service, and registering to the server providing the sponsoring service; and transmitting a request of the sponsoring service comprising identification information of the at least one UE, to the server providing the sponsoring service.

Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). a method for operating a terminal in a wireless communication system is provided. The method includes receiving information relating to a data session from a network node, determining a target node among nodes belonging to a second network based on the information relating to the data session, and performing a handover from a source node belonging to a first network to the target node.

Abstract: Disclosed is a fifth generation (5G) or pre-5G communication system for supporting higher data transmission rates beyond fourth generation (4G) communication systems such as LTE systems. A data communication method includes receiving information about a reception rate of a signal from a second user equipment (UE) performing device-to-device (D2D) communication with a first UE, receiving location information about at least one of the first UE and the second UE, determining a data communication configuration for the D2D communication based on the reception rate information and the location information, and transmitting the determined data communication configuration to at least one of the first UE and the second UE.

Abstract: A method of a terminal for performing communication is provided. The method includes, transmitting, by a terminal located outside a cell coverage area, a request message requesting monitoring of a temporary mobile group identity (TMGI) to a relay terminal located within the cell coverage area, receiving a monitoring response message including a layer-2 group identification (ID) in a proximity-based service from the relay terminal, receiving a TMGI announcement message including the layer-2 group ID from the relay terminal, when the relay terminal detects the TMGI, and receiving data related to the TMGI by using the layer-2 group ID.

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting higher data transmission rates beyond 4G communication systems such as LTE systems.

Abstract: The present disclosure provides a method whereby a mobility management entity (MME) in a cellular communication system transmits uplink data, the method comprising: receiving uplink data from a terminal; determining if the received uplink data is an Internet Protocol (IP) packet by examining the uplink data; transmitting the uplink data to a destination node via a packet data network (PDN) if the uplink data is an IP packet; and transmitting the uplink data to the destination node via a service capability exposure function (SCEF) if the uplink data is not an IP packet, wherein the uplink data comprises an indicator for indicating whether the uplink data is an IP packet.

Abstract: Embodiments of the inventive concept herein provide a method and User Equipment (UE) for handling PLMN selection involving Proximity Based Services (ProSe) communication. The method includes detecting one of a PLMN selection due to the ProSe communication followed by a manual Closed Subscriber Group (CSG) cell selection, and a manual CSG cell selection followed by the PLMN selection due to the ProSe communication, when the UE has stored a duplicate value of a Registered PLMN (RPLMN) and a duplicate of a PLMN selection mode. Further, the method includes preserving the stored duplicate value of the RPLMN and a stored duplicate of the PLMN selection mode.

Abstract: A method for providing a multimedia broadcast/multicast service (MBMS) to a terminal related to a vehicle by a broadcast and multicast service center (BM-SC) is provided. The method includes identifying at least one candidate service area that the terminal is predicted to pass through, and transmitting, to an MBMS-gateway (MBMS-GW), a request for configuring the radio bearer of the at least one candidate service area.