Samsung Electronics Co., Ltd.

Sang-Yeon Won

Young-Jip Kim

Han-Seok Kim

Won-Seok Choi

Gyou-Hwan Kim

Jin-Woo Yang

Kwang-Seon Yoo

Kyung-Wan Han

Woon-Kyun Lee

Provided is a method for performing handover by a STAtion (STA) in a radio Local Access Network (LAN) communication system. The method includes sending a Network Controlled HandOver Setup Request Information Element (Ncho Setup Req IE) message indicating that the STA is to perform a scan operation using a controlled scan scheme, to a serving Access Point (AP); receiving a Network Controlled HandOver Setup Response Information Element (Ncho Setup Rsp IE) message including a scan parameter related to a controlled scan operation of the STA, from the serving AP; and broadcasting a probe request message to the serving AP and neighbor APs over channels according to the scan parameter included in the Ncho Setup Rsp IE message.

Apparatus and method for performing handover in radio local access network communication system

A method and apparatus for improving unbalance of service at a cell edge in a Wireless Local Area Network (WLAN). A method of an Access Point (AP) for improving unbalance at service of a cell edge in a WLAN includes monitoring for a continuous decrease of a signal strength of a station over a predefined duration, determining if the station is to handover, when the continuous decrease of the signal strength occurs, and decreasing a transmit power of the AP, when it is determined that the corresponding station is to handover.

Method and apparatus for improving unbalance of service of cell edge in wireless local area network

A method and a system of detecting a duplicate service set identifier (SSID) via self-scanning in a WLAN are provided. An access point (AP), when a scan request is given, generates a probe request packet by inserting a SSID of the AP thereinto, transmits the probe request packet to neighbor APs, receives probe response packets, in response to the probe request packet, from the neighbor APs, detects SSIDs from the probe response packets, and informs the presence of a neighbor AP, the SSID of which is the same as that of the AP, if any of the detected SSIDs is the same as the SSID of the AP.

Method and system of detecting duplicate SSID via self-scanning in WLAN

An apparatus and a method for automatic access in a wireless communication system are provided. The apparatus includes a scanner for scanning surrounding Access Points (APs) by receiving beacon messages from the APs, a determiner for detecting an AP, a WPS button of which has been pressed, from one or more scanned APs and for determining if there are two or more detected APs, and a configurator for, when there are two or more detected APs, transmitting a message including a Medium Access Control (MAC) address of an AP, which has been selected among the detected APs by an input of a user, to the AP and for performing a Wi-Fi Protected Setup (WPS) with the selected AP, thereby accessing a wireless Local Area Network (LAN).

Apparatus and method for automatic access in a wireless communication system

A system and method for transmitting data in a wireless local area network (WLAN) are provided. The data transmission system in the WLAN includes: an access point for periodically transmitting beacon frame information; and a wireless terminal for determining the number of data frames depending on a transmission rate of a current data frame, producing a setting frame containing duration information determined depending on the number of data frames, transmitting the setting frame, and then consecutively transmitting as many data frames as the determined number during a duration time when it is determined that a communication environment is an overlapping legacy BSS condition (OLBC) environment based on the beacon frame information received from the access point.

Apparatus and method for transmitting data frame in WLAN terminal

In a Wireless Local Area Network (WLAN) and a method of transmitting a frame in the WLAN, mode information and an available data transfer rate of each wireless terminal located within a coverage of an Access Point (AP) are collected. A determination is made as to whether or not the AP transmits a Clear To Send (CTS) frame depending upon an existence of wireless terminals corresponding to the collected mode information before the AP transmits a data frame to at least one wireless terminal. A data transfer rate of the CTS frame is adjusted based on the collected available data transfer rate of each of the wireless terminals to transmit the CTS frame at the adjusted data transfer rate. Therefore, both the stability and the bandwidth effectiveness may be enhanced.

Growing community of inventors

Seoul, South Korea

Sang-Yeon Won