Samsung Electronics Co., Ltd.

Seong-Ryong Kang

Byung-Suk Kim

Dong-Sook Kim

Chul-Ki Lee

Jong-Hyune Kim

Hong-Kyu Jeong

Woo-Jae Kim

Jung-Ah Choi

Ki-Ho Cho

Young-Ki Jeon

Han-Seok Kim

Jeong-Jae Won

Dong-Jo Cheong

Hwa-Jin Cha

Jung-Min Choi

Dae-Joong Kim

Ji-Cheol Moon

A method and device for hosting an application by an access node which provides network access to a terminal in a mobile communication system are provided. The method includes receiving a request packet for a service request from a user application of a mobile terminal, delivering the request packet to an application included in the access node, if a destination of the request packet corresponds to the application of the access node, providing a service to the user application of the mobile terminal through the application, and delivering the request packet to a corresponding public application on an external network, if the application corresponding to the destination of the request packet does not exist in the access node.

Method and device for hosting application by access node

A technique forwards handover data in a wireless communication system. A base station apparatus includes a first buffer for storing downlink data of a terminal, a handover agent for, when the terminal performs a handover, performing scheduling on data which is stored in the first buffer for at least one terminal including the terminal that performs the handover so that an interruption time of the at least one terminal is reduced in order to forward the data to a target base station, and a communication unit for transmitting the data according to a scheduling result of the handover agent.

Apparatus and method for forwarding handover data in wireless communication system

To forward traffic to a base station using Software Defined Network technology, a method for operating a switch includes receiving path information of a packet to be forwarded from a source terminal to a plurality of destination terminals, from a controller, receiving the packet to be forwarded from the source terminal to the destination terminals, from a base station, and transmitting the packet along a path determined by the path information. An apparatus for controlling a switch in a communication network includes a transceiver configured to receive information of a source terminal and a plurality of destination terminals, from a server which controls a service for forwarding traffic from the source terminal to the destination terminals, and a controller configured to determine a packet forward path between the source terminal and the destination terminals, wherein the transceiver transmits the determined path information to at least one switch.

Apparatus and method for forwarding data based on software defined network in communication network

A method for operating a switch in a communication network includes receiving path information of a service flow between a first user equipment (UE) and a second UE from a controller, receiving a packet forwarded through the service flow from a base station, and transmitting the packet to a path determined by the path information. An apparatus for a switch in a communication network includes a controller configured to receive path information of a service flow between a first user equipment (UE) and a second UE from a controller, receive a packet forwarded through the flow from an evolved NodeB and forward the packet to a path determined by the path information. Other embodiments are also disclosed.

Method and apparatus for enhancing voice service performance in communication system

A method and device for processing a service in a mobile communication system based on SDN technology are provided. The method of controlling access caches in a communication network includes receiving information about contents requested by a user equipment (UE) connected to a first base station. The method also includes transmitting a forwarding request that requests to control at least one switch in order for an access cache that has the contents and that interworks with a second eNB to transfer the contents to the first eNB.

Method and device for processing service in software-defined networking system

A method and an apparatus for distributing a load of a base station in a wireless communication system supporting multi-carriers are provided. In the method, carriers are classified into a plurality of groups. A load of each of a plurality of cells corresponding to the plurality of groups, is determined. A cell load of each of the plurality of cells is compared with at least one threshold set in advance. When a cell load of a first cell has a value greater than the at least one threshold set in advance, a cell inside a group of the first cell or a cell inside a group different from the first cell is selected depending on the cell load of the first cell. A terminal of the first cell is allowed to perform a handover to the selected cell.

Method and apparatus for distributing load in wireless communication system

A method and apparatus manage a buffer of a lower network node in a communication system. A current queue length of the buffer is monitored in every measurement time. A logical region in which the current queue length is included is determined, among a plurality of logical regions included in the buffer. Each of the logical regions corresponds to a queue length determined by using an upper threshold and a lower threshold of a total queue length of the buffer. A congestion state of a network is detected, and a first queue length is readjusted when the current queue length is included in the first queue length which corresponds to a first logical region that exceeds the upper threshold. And a network congestion state signal that represents the detected congestion state of the network is transmitted to the upper network node.

Method and apparatus for adaptively managing buffer in communication system including a plurality of network nodes

A system that provides a content delivery service to a user in a mobile communication system is provided. The system receives, from an enhanced Node B (eNB), cell-specific capacity information that is determined based on cell-specific load state information of the eNB, determines a transfer rate for traffic to be transmitted to a User Equipment (UE) in each cell, based on the received cell-specific capacity information, and transmits the traffic to be transmitted to the UE in each cell to the eNB at the determined transfer rate.

Method and apparatus for controlling traffic transfer rate based on cell capacity in mobile communication system

An apparatus and a method for flow control between a Packet Data Convergence Protocol (PDCP) layer and a Radio Link Control (RLC) layer in a communication system are provided. The method includes storing Service Data Units (SDUs) to be transferred to the RLC layer, receiving information on a capacity that is currently unused in a buffer of the RLC layer from the RLC layer, and generating Packet Data Units (PDUs) from SDUs, a capacity of which corresponds to the information, among packets stored in a buffer of the PDCP layer, and then transferring the generated PDUs to the RLC layer.

Method and apparatus for flow control between RLC and PDCP in a communication

A method and an apparatus of a serving base station for determining handover of a terminal in a mobile communications system are provided, including determining whether a measurement report message is received from a User Equipment (UE); when receiving the measurement report message, determining whether a channel status value of the UE satisfies a preset condition during a certain time; and determining whether to hand over the UE according to the determination result.

Method and apparatus for determining handover in mobile communication system

A method for performing congestion control in a communication system. The method includes transmitting a request message to a node using a first packet with a highest priority and receiving a response message corresponding to the request message using the first packet and at least one of a plurality of second packets, estimating a one-way delay of the first packet according to a round trip time for the first packet, converting one of the one-way delay of the first packet and the one-way delay of at least one of the plurality of second packets into a quality of service (QoS) level using a predetermined upper delay bound for a corresponding packet, and converting the converted QoS level into an effective congestion level representing a congestion degree in a network and performing congestion control using the effective congestion level.

Apparatus and method for performing congestion control in a communication system

An apparatus is capable of setting HARQ and ARQ parameters in a mobile communication system. The apparatus sets HARQ and ARQ parameters in a mobile communication system. The apparatus sets a default HARQ parameter based on the determined default HARQ parameter setting condition determined by using a plurality of QCIs. The apparatus sets a default ARQ parameter based on the determined default ARQ parameter setting condition determined by using the plurality of QCIs, and updates the set default HARQ parameter and the set default ARQ parameter according to a channel status of a UE.

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Seongnam-si, South Korea

Seong-Ryong Kang