Samsung Electronics Co., Ltd.

Sang-su Nam

Min-Soo Kim

Dae-sung Cho

Jae-min Ahn

Hyun-gyoo Yook

Byung-in Mun

Jong-hyun Yoon

Seong-Ho Cho

Hye-Eun Choi

Se-hong Kim

Hye-eun Choi

Jae-Min Ahn

Kyoung-yong Lee

Keun-jae Lee

Jeong-hwan Seo

Myeong-Seong Seo

A method includes: executing an application prepared by an application programming interface (API) of a platform; and providing a network setting information to be used in the executed application to a display. A network connection is performed by the platform based on the network setting information.

Mobile device and control method thereof

A method includes: executing an application prepared by an application programming interface (API) of a platform; and establishing a network connection. A first network connection is selected based on a determination that the application specifies a network connection, or a default network connection is selected, based on a determination that the application does not specify a network connection.

A method for performing data transmission/reception using Near Field Communication (NFC) in a terminal includes loading a preset data transmission/reception policy upon recognizing a target device capable of communication using NFC; acquiring at least one sensing information used to determine a particular data transmission/reception operation; and determining the particular data transmission/reception operation based on the loaded data transmission/reception policy and the acquired sensing information.

Apparatus and method for providing data transmission/reception in a terminal using near field communication

An apparatus and method of changing an access point in a wireless network system is provided. The wireless network system includes a first access point existing on a wireless network, and a user terminal accessing the first access point. The first access point transmits information on a second access point, which is one of a plurality of access points accessible by the user terminal, to the user terminal, and the user terminal determines whether to access the second access point and accesses the second access terminal in accordance with the determination result.

Apparatus and method of changing access point in wireless network system

A method and apparatus for a Peer-to-Peer (P2P) connection between terminals are provided. The method of a group owner terminal that establishes the P2P connection between terminals includes determining a terminal to be operated as a next owner terminal among terminals included in a group connected via the P2P connection, and transmitting information about general member terminals included in the group to the next owner terminal.

Apparatus and method for reconfiguring peer-to-peer connection between terminals

The mobile device includes a communication unit which performs communication through a network; and a control unit which executes an application prepared by an application programming interface (API) of the network function provided by a platform, and controls the communication unit to perform communication in accordance with a setup of a preferred network if the application includes the setup of the preferred network.

A method and apparatus for measuring the quality of wireless channels based on a result obtained by measuring contentions between stations in a wireless network employing a carrier sense multiple access/collision avoidance (CSMA/CA) medium access control (MAC) method specified in the IEEE 802.11 standard are provided. The method includes determining contentions between stations to transmit frames via a wireless channel that uses a contention-based medium access method, and measuring the quality of the wireless channel based on the determined contentions.

Method and apparatus for measuring quality of wireless channels

A method and apparatus for transmitting a message in a wireless network environment are provided. The method of computing an interval of message transmission in an access point located in a specific subnet, includes determining whether the access point is an edge access point located at a boundary between the specific subnet and a neighboring subnet, and computing an interval of transmission of a router advertisement (RA) message containing information regarding the specific subnet based on the determination result.

Method and apparatus for transmitting router advertisement and router solicitation messages through access point

An apparatus and a method for managing a push service used by an application, and a recording medium storing a program source for the method which includes, when there is a request for use of a push service from an application installed in a mobile station, determining whether another application using the push service exists, determining a message type of a message to be transmitted to a push server to make a push service registration request depending on the determination of another application using the push service, and configuring a message for a push service registration request according to a determined message type and transmitting the configured message to the push server.

Method and apparatus for managing push service

A handover method and apparatus at a link layer of a wireless LAN according to the IEEE 802.11 standard are provided to minimize a handover latency. The handover method is performed in a mobile station moving from one subnet to another subnet, each subnet being managed by one of a plurality of access points. Channels available to the mobile station are selectively scanned based on information regarding one and more access points which are estimated to be present in a communication area of the mobile station, and a handover is performed to one of the access points based on the scanning result.

Method and apparatus for fast and efficient handover at link layer of wireless LAN

A service searching system and method for a wireless ad hoc network. According to the present invention, service information on a service agent providing a relevant service is received from a user agent that has previously broadcast a service request packet in a wireless ad hoc network environment, and consequently load on the network can be reduced. Further, service information is received from a user agent, and an additional selection algorithm for storing the service information on a service agent is not required.

Service search system for wireless ad hoc network, and service searching method thereof

A method of controlling a transmission rate and a communication device using the same are disclosed. A method of controlling a transmission rate includes changing a path for packet transmission/reception from a first path to a second path, setting a congestion window and a slow-start threshold to be used in the second path to a congestion window and a slow-start threshold used in the first path, and adapting the congestion window and the slow-start threshold to be used in the second path according to a packet loss generated in the second path.

Method of controlling transmission rate and communication device using the same

Disclosed herein is a method of allocating an Internet Protocol (IP) address and detecting the duplication of the IP address in an ad-hoc network environment. In the method of the present invention, a terminal allocates an IP address to itself and efficiently detects and handles the duplication of the IP address in the ad-hoc network environment, thus reducing the load of an entire network and allowing the method to be used together with existing routing protocols.

Method of allocating IP address and detecting duplication of IP address in an ad-hoc network environment

A method and system for dynamically updating information registered in ARP cache tables of other terminals in a case where a protocol address of a terminal existing in an ad hoc network changes. The method includes detecting whether protocol addresses of terminals are duplicated and changing the protocol addresses of some of the terminals having the duplicate protocol addresses; by a terminal whose protocol address has changed, transmitting information on the previously used protocol address and its own hardware address to neighboring terminals; updating the address information tables in accordance with the received information; by a terminal whose protocol address has not changed among the terminals having the duplicate protocol addresses, transmitting its own address information to the neighboring terminals; and by the neighboring terminals that has received the address information in the fourth step, updating the address information tables in accordance with the received information.

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Seoul, South Korea

Sang-su Nam