Abstract: A method, user device, server, and storage medium for creating and joining a social group performed by a user device are provided. The method for creating the social group includes receiving information corresponding to a current location of the user device; receiving at least one social group condition information item; and sending a request to create a social group based on the information corresponding to the current location and the at least one social group condition information item to an external device.

Abstract: The present disclosure relates to a communication method and a system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, a smart retail, and security and safety services. A method and an apparatus for communicating voice calls in a communication system are provided.

Abstract: Methods and apparatuses for controlling transmission control protocol (TCP) send buffers in communication systems are provided. The method includes identifying a current round-trip time (RTT) value and a minimum RTT value in the TCP and adjusting a size of the send buffer based on at least one of a current operation, the current RTT value, and the minimum RTT value in a congestion control scheme according to the TCP.

Abstract: The present disclosure relates to a 5G or a pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for controlling TCP congestion in a communication system provided in the present disclosure comprises the steps of: determining the maximum transmission rate of a network, while increasing the size of a congestion window at a predetermined time interval; determining a threshold transmission rate which is determined by a preset ratio with regard to the determined maximum transmission rate; and adjusting the size of the congestion window such that the current transmission rate is not less than the threshold transmission rate and the delay time is no longer than the maximum allowable delay time.

Abstract: The present 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). The present invention relates to a method and apparatus for anchoring of a terminal in a wireless communication system. The method for anchoring the terminal in the wireless communication system may include receiving attribute information indicating whether at least one gateway operating as an anchor for at least one default Packet Data Network (PDN) connection supports session persistence, detecting a new flow generated by an application, determining whether a further PDN connection is required for the flow on the basis of the attribute information indicating whether at least one gateway supports session persistence, and if no further PDN connection is required for the flow, using an Internet Protocol (IP) address allocated by the at least one gateway as a source IP address of the flow.

Abstract: The present disclosure may provide an operating method for supporting gateway change in a mobile communication system. According to one aspect of the present disclosure, the method includes receiving a message requesting to consent to the gateway change from a network entity; and according to whether at least one flow requiring session continuity is set, sending a response message regarding the gateway change consent to the network entity, wherein, when the at least one flow requiring the session continuity is set, the network entity can hold the gateway change based on the response message.

Abstract: A method for providing a cooperative communication service by a macro Base Station (BS) in a mobile communication system is provided. The method includes generating at least one small cell BS group by grouping small cell BSs if there are small cell BSs of which a number is equal to or larger than a threshold small cell BS number within a service coverage of the macro BS, establishing a cooperative interface with a representative small cell BS among small cell BSs included in the at least one small cell BS group, and providing a cooperative communication service with the at least one small cell BS group using the cooperative interface.

Abstract: The present disclosure relates to a 5G or a pre-5G communication system to be provided in order to support a higher data transmission rate than a 4G communication system such as LTE. The present invention provides a method for receiving, by a terminal, a mobile end service in a communication system, the method including: a step of ascertaining whether there exists a continuously available service among services which have been provided from a serving base station, on the basis of a list of supported services received from a target base station; and in the case that there exists a continuously available service, a step of transmitting a service area update request to the target base station via a connection layer if the continuously available service supports a mobile end service.

Abstract: Provided is a method for scanning an Access Point (AP) in a wireless communication system. The method includes receiving a beacon frame from a proximity AP located within a proximity of a User Equipment (UE) and determining whether a channel where the proximity AP is located is congested; if the channel is not congested, scanning at least one AP operating on the channel, and searching for a first AP that can communicate with a highest signal strength; determining whether to perform re-scanning for an AP in the channel; if it is determined to perform the re-scanning, predicting a time that a beacon frame is to be transmitted from the first AP; receiving a beacon frame from the first AP at the predicted time, and determining whether the channel where the first AP is located is congested; and if the channel is not congested, re-scanning at least one AP operating on the channel.

Abstract: A method for providing a service by a transparent internet cache (TIC) server in a communication network supporting a multipath transport control protocol (MPTCP) is provided. The method includes establishing an MPTCP connection with a user equipment (UE) and an original server through a first network, upon receiving a service provision request from the UE, releasing the MPTCP connection established among the TIC server, the UE, and the original server if data related to a service corresponding to the service provision request is cached, and providing the service corresponding to the service provision request to the UE.

Abstract: Provided are a method, apparatus, and system for sharing usage information of daily life. Usage information sharing system includes: a first home network including at least one electronic device generating metadata with respect to human behavior; a first collecting device collecting metadata with respect to usage information from first home network; a second collecting device transmitting metadata of first home network that is received from the first collecting device to a second home network; and a second home network comprising at least one electronic device receiving the metadata from the second collecting device and performing an operation corresponding to the metadata. Accordingly, behavioral actions of a person in daily life can be dynamically recognized via a home network and home electronic devices and converted into metadata, and transmitted to another home network in real-time via a network. Thus, the experiences and feelings of a user can be dynamically shared.

Abstract: The present 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). An operation method of a transmission device according to an embodiment includes determining the amount of packets transferred from an application layer to a buffer and determining the amount of packets transferred from the buffer to a transmission layer. The method also includes blocking/non-blocking a packet transfer from the application layer to the buffer, based on the amount of packets transferred from the application layer to the buffer and the amount of packets transferred from the buffer to the transmission layer.

Abstract: A method and a system are capable of supporting a Quality of Service (QoS) service in a wireless communication system. The method for supporting the QoS service includes checking a service capability of an application; when the application provides a QoS service, requesting QoS configuration to a QoS server; and when receiving a QoS configuration response signal from the QoS server, checking whether QoS of the application is allocated, in the QoS configuration response signal.

Abstract: The present invention relates to a method and an apparatus for transmitting contents in a mobile communication network. According to one embodiment of the present invention, the method for receiving the contents of user equipment (UE) in a mobile communication system equipped with a local server which is connected to a base station (eNB) and copies partial contents of an external content server and maintains the copied contents, can include: a content determination step of determining whether the selected contents are the contents provided from the local server when a content selection input is received; a request transmission step of transmitting a content transmission request message to the base station (eNB) when the contents are the contents provided from the local server; and a content reception step of receiving the contents from the base station.

Abstract: A method for performing communication by a cellular base station in a wireless communication system is provided. The method includes performing channel contention for occupying a channel of an unlicensed band, if the channel of the unlicensed band is occupied, the cellular base station transmits a first message including information about a time period in which the channel of the unlicensed band is usable, to at least one first User Equipment (UE) that performs communication in the channel of the unlicensed band using a first communication scheme, and communicating with a second UE using a second communication scheme different from the first communication scheme in the channel of the unlicensed band during a time period corresponding to the time period information. The second communication scheme corresponds to a cellular communication scheme, and the first message is transmitted to the at least one first UE based on the first communication scheme.

Abstract: A method of an electronic device in a wireless communication system is provided. The method includes receiving, by the electronic device, a service through a first content server, performing, by the electronic device, handover from a serving Base Station (BS) to a target BS, and continuously receiving the service through a second content server closest to the electronic device.

Abstract: The present 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). According to various embodiments, a device of an intermediate node comprises: a receiving unit configured to receive a signal for determining a buffer threshold value of at least one terminal; and a control unit configured to determine a buffer threshold value of the terminal on the basis of the signal, and determine a size of data to be requested to at least one server according to the determined buffer threshold value of the terminal.

Abstract: The present disclosure relates to a 5G or pre-5G communication system that is provided so as to support higher data transmission rates after 4G communication systems such as LTE. In addition, the present disclosure relates to a method and an apparatus for configuring a disconnected TCP connection in a communication system, and a handover support method and apparatus therefor. The method for a TCP proxy configuring a TCP connection in a communication system according to the present disclosure comprises the steps of: configuring a tunnel for receiving/transmitting data with a base station; and according to a TCP connection request by a terminal, configuring a first TCP connection between the terminal and the TCP proxy, and configuring a second TCP connection between the TCP proxy and a service server of an IP network.

Abstract: A method and apparatus for managing mobility of a terminal by a first base station in a communication system. The first base station assigns a first address to the terminal located in a cell managed by the first base station and establishes a session to an external server that communicates with the terminal using the first address. If the terminal moves to a cell managed by a second base station different from the first base station, the first base station determines whether information about a second address assigned to the terminal by the second base station is received within a predetermined time. Upon receiving the information about the second address within the predetermined time, the first base station transmits data received from the external server to the terminal through the second base station using the information about the second address.

Abstract: A method for a serving base station to determine a handover time in a communication system is provided. The method includes determining whether to set up dual connectivity (DC) with respect to a terminal with a target base station that transmits the beacon if it is recognized that the terminal receives a beacon including a plurality of pieces of service coverage area information, and determining whether to execute a handover to the target base station based on a measurement report of the terminal, which is received after the DC is set up if the DC is set up.