Samsung Electronics Co., Ltd.

Jin-Yup Kim

Geon-Soo Kim

Jong-Mu Choi

Jun-Hwan An

Jin-Hong Jeong

Kyoung-Youp Park

Chang-Soon Kim

An apparatus and a method are provided for transmitting data in an electronic device. A method for processing data in an electronic device includes in network connection, determining whether to send a packet of a first Maximum Transmission Unit (MTU) value that is preset, a destination node, responsive to the packet of the first preset MTU value not being transmitted to the destination node, measuring an optimal MTU value in an Internet Protocol (IP) layer or an application layer, and changing the first preset MTU to the measured optimal MTU value.

Method for processing data and an electronic device thereof

Various embodiments of the present disclosure relate to a method and apparatus for connecting to multiple Packet Data Networks (PDNs) in a wireless communication system using a Carrier Aggregation (CA) technique. In the wireless communication system using the CA technique for aggregating multiple carriers into one carrier, the wireless communication system may ensure Quality of Service (QoS) of a subscriber by mapping multiple carriers and multiple PDNs on the basis of a dynamic CA carrier. Various embodiments are possible.

Method and apparatus for connecting to packet data networks in wireless communication system

An apparatus and a method for reducing power consumption using packet filtering in a portable terminal are provided to allow a modem to filter a packet in order to prevent an Application Processor (AP) from waking up from a sleep mode due to an unnecessary packet. The portable terminal includes an AP for providing a list of packets required in the AP itself to a packet determiner, and the packet determiner for filtering a packet included in the list provided from the AP and for providing the packet included in the list to the AP.

Apparatus and method for reducing power consumption using packet filtering in portable terminal

An apparatus and a method for synchronizing a Security Association (SA) state as SA information of a mobile communication terminal is lost are provided. In the method, an IPSec tunnel is established by performing an SA procedure with a server, and a secure port is obtained. A service request message is transmitted to the server via the obtained secure port, and an unsecure port is opened. When a service response message is received from the server, it is determined whether the service response message is received via the unsecure port. When the service response message is received via the unsecure port, the SA procedure is re-performed. Therefore, the terminal may use a service through a secure network without interruption, and reduce a waste of resources by avoiding unnecessary retransmission of a message for requesting a service.

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Gyeonggi-do, South Korea

Jin-Yup Kim