Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as an LTE. The present invention relates to a method by which a proxy sets an initial window value in a wireless communication system, the method comprising: splitting a transmission control protocol (TCP) connection between a terminal and a server; extracting the information related to the terminal from the data received from the terminal; and setting the initial window value on the basis of a round trip time (RTT) value and a throughput value for each of terminal groups grouped on the basis of the information related to the terminal.

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 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: A method and an apparatus of cooperating with a plurality of base stations in a wireless communication system. A cloud cell is configured with a plurality of base stations that cooperate with each other for a mobile station and synchronizes user contexts for serving the mobile station among the plurality of base stations included in the cloud cell, and the plurality of base stations cooperate with each other to provide a communication service to the mobile station. The present disclosure reduces generation of a handover when the mobile station moves between base stations, and increases the data yield of the mobile station by transmitting and receiving data in cooperation with base stations in a cloud cell at a shaded area or a cell border.

Abstract: A 5G or a pre-5G communication system supports a higher data transmission rate than a system after a 4G communication system such as LTE. A transmission device in a wireless communication system according to an embodiment of the present disclosure includes: a control unit that determines a maximum size of data that can be transmitted, based on network information, and determines transmission speeds of multiple transmission control protocol (TCP) connections, based on the size of the data that can be transmitted, respectively; and a communication unit that transmits data to a reception device through the multiple TCP connections based on the transmission speeds.

Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services based on 5G communication technology and IoT-related technology (e.g. smart homes, smart buildings, smart cities, etc.). A method for receiving image data for a virtual-reality streaming service by an electronic device according to an embodiment of the present invention comprises: a step in which the electronic device determines whether to execute an adaptive virtual-reality streaming service on the basis of a bandwidth state; and a step in which, if it is determined to execute the adaptive virtual-reality streaming service, the electronic device requests and receives, from a server, the image data for the adaptive virtual-reality streaming service on the basis of head-tracking information and bandwidth information collected in advance.

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). A method for operating a proxy apparatus in a wireless communication system includes receiving a plurality of packets from a plurality of servers, and transmitting, to base station, data of one bearer data including the plurality of packets. A proxy apparatus in a wireless communication system includes a communication device configured to receive a plurality of packets from a plurality of servers, and transmit, to base station, data of one bearer including the plurality of packets. A base station apparatus in a wireless communication system includes a communication device configured to receive, from a proxy apparatus, data of one bearer including a plurality of packets.

Abstract: The present disclosure relates 5G or pre-5G communication systems for supporting higher data transmission rate than those by LTE or other post-4G communication systems. Disclosed are a method and apparatus for determining a window size in a wireless communication system. The method includes determining an uplink data rate of the UE on a wireless link, determining that a maximum data size transmittable through an internet session including the wireless link is the window size for the internet session based on the uplink data rate, and transmitting uplink data through the internet session based on the determined window size.

Abstract: A Mobile Station (MS) in a wireless communication system is provided. The MS includes, generating a message for requesting to generate a service flow, the message including mobility management information of the service flow, and transmitting the message including the mobility management information. The mobility management information is used to determine whether the service flow requires an anchor.

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 management of mobility of a terminal in a wireless communication system, and an operating method of the terminal comprises: a step of transmitting a first message requesting mobility-related capability information of an access network, and a step of receiving a second message informing of the mobility-related capability information of the access network. In addition, the present invention includes other embodiments in addition to the aforementioned embodiment.

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: 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: A method and a device for managing mobility of a mobile station in an Internet Protocol (IP) based network are provided. The method includes receiving a request for allocation of an IP address from an application, determining a type of IP address to be allocated to the application based on the request for the allocation of the IP address, and allocating the determined type of IP address to the application.

Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services based on 5G communication technology and IoT-related technology (e.g. smart homes, smart buildings, smart cities, smart cars, connected cars, healthcare, digital education, retail business, services related to security and safety, etc.).

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate beyond a 4G communication system such as LTE. In addition, the present disclosure relates to a TCP-based transmission control method and apparatus which can reduce a delay time while improving a transmission rate in a communication system. A method for TCP-based transmission control in a communication system according to an embodiment of the present disclosure comprises the steps of: determining a maximum target transmission rate for TCP control using maximum congestion windows (CWNDs) estimated at predetermined times; determining a minimum target round trip time (RTT) for the TCP control using minimum RTTs estimated at the predetermined times; and updating at least one of a congestion window (CWND) and a receive window (RWND) in an RTT time slot, using the maximum target transmission rate and the minimum target RTT.

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 a long term evolution (LTE). A method for managing congestion in a first node in a wireless communication system is provided. The method includes receiving status information from each of nodes configuring a network with the first node, receiving information about a service requirement criterion from a second node as one of the nodes, acquiring additional path setup information for the second node based on the status information received from each of the nodes and the information about the service requirement criterion received from the second node, and transmitting the acquired additional path setup information to the second node.

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: 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 electronic device for providing a streaming service includes a controller, an encoder operatively coupled with the controller, and a transmitter operatively coupled with the control unit, wherein the controller is configured to provide a network available bandwidth estimated in a transmission layer of the electronic device from the transmission layer to an application layer, generate stream data from initial data based on the network available bandwidth, and transmit the stream data to another electronic device.

Abstract: A method of a base station (BS) in a mobile communication system to support an idle mode in a wireless communication system is provided. The method includes performing a negotiation procedure for idle mode entry of a mobile station (MS), with the MS, determining whether to operate as a paging controller for the idle mode MS, detecting a packet destined for the MS, and transmitting a message notifying existence of the packet destined for the MS, to at least one other BS in a paging zone of the BS.