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: 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: 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: A method and an apparatus for providing, setting, maintaining, and releasing a packet data network (PDN) connection on the basis of a local area in a wireless communication system are provided. The method includes receiving the PDN subscription information on the basis of the local area from a business operator server, inspecting whether the current location information for the terminal exists in the PDN subscription information on the basis of the local area, and starting a procedure for setting the PDN on the basis of the local area when the current location information exists therein.

Abstract: The present invention relates to a wireless communication system and method for establishing connection between a User Equipment (UE) and a Mobility Management Entity (MME) in the wireless communication system in which the data-centric terminal requests the mobility management entity for attachment and checks, when the mobility management entity responds, data-centric features supported by the mobility management entity. According to the present invention, it is possible to connect the data-centric terminal to the mobility management entity supporting the data-centric features of the corresponding data-centric terminal efficiently 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: The present invention relates to a method and apparatus for controlling a specific service in a network congestion state in a wireless communication system. Particularly, the method for controlling a service by a base station in a wireless communication system according to the present invention comprises: a step of receiving a paging message from a mobility management entity (MME) when a certain terminal generates a downlink packet; a step of checking the setup state of the core network domain included in the paging message; and a paging processing step of, if the core network domain is set as a packet-based voice call service, processing the paging message as a priority.

Abstract: According to one embodiment of the present disclosure, the method by means of which a mobility management entity (MME) determines the communication mode of a terminal in a communication system includes the steps of: receiving, from the terminal, an access request including information on the position of the terminal; transmitting a message to a home subscriber server (HSS) on the basis of the received access request; receiving, from the HSS, specific position information for setting a first mode; comparing the information on the position of the terminal with the specific position information; and determining the communication mode of the terminal according to the result of the comparison. According to the present disclosure, the frequent transmission of small amounts of data can be supported in an efficient manner.

Abstract: A method for receiving a service by a user equipment (UE) is provided. The method includes transmitting an attach request message to a network, upon detection of entry into an area of a non-legacy mobile communication system, receiving an attach accept message from the network including information indicating whether the network supports VoIP or CSFB and receiving voice service by the VoIP or the CSFB through the non-legacy mobile communication system if the information included in the attach accept message indicates that the network supports the VoIP or the CSFB.

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: The present invention relates to an efficient method and apparatus for remotely providing/downloading a profile for use in a communication service in a communication system, and the method for downloading the profile in the communication system, according to one embodiment of the present invention, comprises the steps of: transmitting, to a first server, first information for processing a request for downloading a profile; receiving, from the first server, address information of a second server processing the request for downloading the profile on the basis of the first information; transmitting, to the second server, second information for calling a function, of an application, related to the downloading of the profile; receiving, from the second server, the profile-related information as a response of the second information for calling the function; and connecting to a third server providing the profile on the basis of the profile-related information, and downloading the profile.

Abstract: A method and a device for setting priority of data transmission are provided. A terminal, which is set to transmit low priority data to a network, transmits a connection request to the network in order to transmit normal-priority data, and receives and stores priority information on data transmission from the network.

Abstract: The present disclosure relates to a communication technique for combining a 5G communication system for supporting a higher data transmission rate than a 4G system with an IoT technology, and a system therefor. The present disclosure can be applied to 5G communication and IoT related technology-based intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security and safety related services, etc.).

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 various embodiments of the present invention, an electronic device may comprise a communication circuit configured to perform proximity-based service direct discovery; and a processor configured to broadcast a safety message related to the electronic device via the communication circuit in a first safe operation mode, and receive a safety message broadcast from at least one external electronic device in a second safe operation mode different from the first safe operation mode, and various embodiments are possible.

Abstract: An electronic device is provided. The electronic device includes a first communication interface, a second communication interface, and a processor electrically connected with the first communication interface and the second communication interface, wherein the processor is configured to transmit first information related to proximity discovery of the electronic device to a first external electronic device or a second external electronic device through the first communication interface and perform proximity discovery with the first external electronic device through the second communication interface based on the first information or second information related to proximity discovery of the first external electronic device corresponding to the first information.

Abstract: The present invention is a method for transmitting a data packet by a user terminal in a mobile communication system. The method enters a power saving mode for transmitting the data packet only if a channel state satisfies a transmission threshold value, compares the index indicating the channel state and the transmission threshold value upon occurrence of a data packet to be transmitted, starts transmission of the data packet if the index indicating the channel state is greater than the transmission threshold value, and proceeds with the transmission of the data packet until the time set by the timer that starts at the same time as the transmission of the data packet expires.

Abstract: According to one embodiment of the present disclosure, the method by means of which a mobility management entity (MME) determines the communication mode of a terminal in a communication system includes the steps of: receiving, from the terminal, an access request including information on the position of the terminal; transmitting a message to a home subscriber server (HSS) on the basis of the received access request; receiving, from the HSS, specific position information for setting a first mode; comparing the information on the position of the terminal with the specific position information; and determining the communication mode of the terminal according to the result of the comparison. According to the present disclosure, the frequent transmission of small amounts of data can be supported in an efficient manner.

Abstract: The embodiments disclosed in the present specification relate to a method and an apparatus for providing proximity-based information. An electronic apparatus for providing proximity-based information according to various embodiments of the present invention comprises: a communication interface; a memory; and a processor electrically connected to the communication interface and the memory, wherein the processor may be set to obtain first context information from one or more programs running on the electronic apparatus, identify first location information corresponding to the first context information, transmit, to a server, first data including at least one of the first context information and the first location information, through the communication interface, receive, from the server, first event information on a point of interest corresponding to the transmitted first data, and store, in the memory, the received first event information on the point of interest. Other various embodiments are possible.

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.