Samsung Electronics Co., Ltd.

Jeong-Hoon Han

Jong-Mu Choi

Young-Seok Lim

Jun-Yeop Jung

Ju-Ho Lee

Youn-Hyoung Heo

Yong-Suk Moon

Gin-Kyu Choi

Il-Sung Hong

Jung-Wook Yoon

Kyung-Hyun Paik

Hun-Geun Song

A method and an apparatus for managing power of a Wireless Local Area Network (WLAN) module in a portable terminal are provided. In the method, the WLAN module is operated according to a Power Save Mechanism (PSM). Whether the portable terminal operates in a sleep state is determined. At least one of a beacon interval and a Delivery Traffic Indication Map (DTIM) interval of the PSM is changed depending on whether the portable terminal operates in the sleep state.

Method and apparatus for managing power of WLAN module in portable terminal

An apparatus and a method for Peer-to-Peer (P2P) connection using a wireless Local Area Network (LAN) in a mobile communication terminal are provided. The method includes detecting a P2P connection attempt of a new terminal not connected to P2P communication, during P2P communication with at least one terminal, determining whether the mobile communication terminal operates as a slave terminal or a group owner in the P2P connection, and when the mobile communication terminal operates as the slave terminal, transmitting a signal indicating that the P2P connection attempt of the new terminal is detected, to a terminal operating as the group owner in the P2P connection.

Method and apparatus for peer-to-peer connection using wireless local area network (LAN) in mobile communication terminal

A method and an apparatus for connecting a portable terminal to a Wireless Local Area Network (WLAN) are provided. The method includes when a WLAN connection event occurs, performing a WLAN connection procedure by keeping a WLAN module in an awake state, and when the WLAN connection is complete, operating the WLAN module according to a Power Save Mechanism (PSM).

Method and apparatus for connecting portable terminal to WLAN

An apparatus and method for transmitting/receiving control information using a pilot pattern inserted in a plot field of a dedicated physical channel in a mobile communication system including a transmitter for transmitting data and a receiver for receiving the data. The apparatus and method include selecting control information according to whether the data is received; and selecting a pilot pattern according to the control information, and inserting the selected pilot pattern in a pilot field of a dedicated physical channel as the control information, before transmission. The pilot pattern includes a first pilot pattern used when the control information is not transmitted, a second pilot pattern being orthogonal with the first pilot pattern, and a third pilot pattern generated by inverting a sign of the second pilot pattern.

Apparatus and method for transmitting control information in a mobile communication system

An apparatus and method are provided for determining a data rate by means of control information in a mobile communication system which includes a User Equipment (UE) and a Node B. The UE transmits data to the Node B, and the Node B transmits the control information to the UE. The data rate is determined by means of the control information and is used for transmission of the data by the UE. The apparatus and method comprise determining a preliminary data rate in consideration of a quantity of data waiting for transmission; comparing the preliminary data rate with a previous data rate used for previous data transmission; and determining the data rate according to a result of comparison so that the UE can transmit the data at the data rate.

Apparatus and method for data rate scheduling of user equipment in a mobile communication system

Disclosed is a method for performing a closed loop mode transmit diversity antenna verification in a mobile communication terminal, the method including estimating an uplink error rate by comparing an antenna complex vector, which is estimated by antenna verification to have been applied to transmit diversity in a base station, with an antenna complex vector reported to the base station; and performing the antenna verification to which the estimated uplink error rate is applied, thereby generating an antenna complex vector estimated to have been applied in the base station.

Apparatus and method for antenna verification of closed loop mode transmit diversity

An apparatus and method for estimating a decision boundary in symbol units in a mobile communication system. The method for estimating a decision boundary of reception symbols in a receiver of a mobile communication system includes the step of calculating a preliminary decision boundary for every symbol entered a decision boundary estimator; and reflecting the preliminary decision boundary calculated for every symbol in a previous symbol's decision boundary having been calculated in consideration of a channel environment until reaching the previous symbol, and calculating a new decision boundary for the entered symbol.

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Seoul, South Korea

Jeong-Hoon Han