Samsung Electronics Co., Ltd.

Sang-Hwan Park

Sung-Jin Kim

Sung-Oh Hwang

Jae-Yoel Kim

Hyun-Woo Lee

Yong-Suk Lee

Ju-Ho Lee

Sung-Ho Choi

Kook-Heui Lee

Yong-Jun Kwak

Ho-Kyu Choi

Hyeon-Woo Lee

Byung-Jae Kwak

Hun-Kee Kim

Chang-Hoi Koo

Chang-soo Park

Hi-Chan Moon

Young-Soo Park

Jong-Hyeuk Lee

Yong-Suk Moon

Beong-Jo Kim

Jae-Seung Yoon

Yun-Hee Lee

Kyou-Woong Kim

Ki-Ho Jung

Su-Won Park

Seong-Ill Park

Min-Koo Kim

Chang-Soo Park

Jae-Hoon Chung

Seong-III Park

Jae-Yoei Kim

Young-Suk Lee

An apparatus and method for transmitting packet data through at least two transmit antennas in a packet data communication system using transmit antenna diversity. In the packet transmitting apparatus, a feedback information interpreter interprets feedback information including CQIs and antenna weights received from a plurality of UEs requesting a packet data service. A weight generator classifies the antenna weights and selects UEs having orthogonal weights. A transmitter applies the selected weights to packet data destined for the selected UEs and transmits the packet data to the selected UEs simultaneously.

Apparatus and method for transmitting data using transmit antenna diversity in a packet service communication system

A method for mapping first coded TFCI symbols and second coded TFCI symbols to a radio frame in a transmission apparatus of a mobile communication system for encoding k first TFCI bits and (10&#x2212;k) second TFCI bits, a sum of the first coded TFCI symbols and the second coded TFCI symbols being 32. The method comprises multiplexing the coded symbols such that the first coded TFCI symbols and the second coded TFCI symbols are uniformly distributed according to a transmission mode and a data rate of the radio frame, and outputting 32 coded symbols; and mapping the 32 multiplexed coded symbols to the radio frame to satisfy the number of the coded symbols that can be mapped to one radio frame, determined according to the transmission mode and the data rate of the radio frame.

Apparatus and method for symbol mapping TFCI bits for a hard split mode in a CDMA mobile communication system

A method for mapping first coded TFCI symbols and second coded TFCI symbols to a radio frame in a transmission apparatus of a mobile communication system for encoding k first TFCI bits and (10&#x2212;k) second TFCI bits, a sum of the first coded TFCI symbols and the second coded TFCI symbols being. The method comprises multiplexing the coded symbols such that the first coded TFCI symbols and the second coded TFCI symbols are uniformly distributed according to a transmission mode and a data rate of the radio frame, and outputtingcoded symbols; and mapping themultiplexed coded symbols to the radio frame to satisfy the number of the coded symbols that can be mapped to one radio frame, determined according to the transmission mode and the data rate of the radio frame.

In a mobile communication system, if a UE enters a SHO (Soft Handover) region, the UE determines weight information for a DPCH and a PDSCH depending on DPCH signals and PDSCH signals received from Node Bs, and transmits the determined weight information to the Node Bs. The Node Bs then determine weights of the DPCH signals and the PDSCH signals to be transmitted to the UE depending on the feedback information received from the UE, and transmit the determined weights to the UE along with the DPCH signals and the PDSCH signals, respectively.

Apparatus and method for controlling transmit antenna array for physical downlink shared channel in a mobile communication system

A data transmitting/receiving apparatus and method using an antenna array in a mobile communication system. A Node B measures a transmission status of each transmission antenna, classifies transmission data according to priority, and transmits to a UE high-priority data through a transmission antenna at a relatively good transmission status and low-priority data through a transmission antenna at a relatively poor transmission status.

Apparatus and method for transmitting and receiving data using an antenna array in a mobile communication system

A transmitter simultaneously performs channel coding and rate matching in a CDMA mobile communication system. The transmitter encoders input bits into coded bits at a given mother code rate, and performs puncturing on the coded bits in order to match the number of coded bits to a predetermined code rate. Thereafter, the transmitter simultaneously performs rate matching for repeating or puncturing the coded bits in order to match the number of coded bits to the number of bits transmitted over a radio channel.

Apparatus and method for performing coding and rate matching in a CDMA mobile communication system

A method for broadcasting channel information, available channel and data rate of a base station in a CDMA communication system. The base station receives information indicating that a mobile station has data to transmit, over an access preamble channel. The base station transmits use status information of physical channels and maximum available data rate information on a status indicator channel. The mobile station receives the use status information of physical channels and the maximum available data rate information through the status indicator channel from a base station. The mobile station transmits to the base station an access preamble for requesting allocation of a given physical channel determined depending on the use status information and the maximum available data rate information.

Apparatus and method for assigning a common packet channel in a CDMA communication system

There is provided a transmission diversity system. In the case where an MS supporting a different antenna transmission diversity scheme enters the service area of a 4-antenna transmission diversity UTRAN, the UTRAN can transmit pilot signals and common data signals to the MS without the need of modifications to the MS. Therefore, power is distributed among antennas of the UTRAN and system capacity is increased.

Apparatus and method for transmission diversity using more than two antennas

A method and apparatus for detecting mobile phone in an Idle State are disclosed. A signal-generating unit generates a pseudo base station signal for transmission to a mobile phone in a detection area. A detecting unit detects a response signal that the mobile phone transmits in response to the pseudo base station signal. An alarm-generating unit generates an alarm when the detecting unit detects the response signal. Preferably, the pseudo base station signal includes new zone information, such that the mobile phone responds by transmitting a location registration signal which is detected by the detecting unit. The method and apparatus are advantageous in that they can apprise a mobile phone user within a specific area that the user's mobile phone is turned on, by detecting the mobile phone in Idle State passing a detection area. The method and apparatus may prevent public injury or interference with electronic equipment by restricting mobile phone use in a building or airplane.

Apparatus and method for detecting a mobile phone in idle state

Growing community of inventors

Suwon-shi, South Korea

Sang-Hwan Park