Samsung Electronics Co., Ltd.

Beijing Samsung Telecom R&d Center

Bejing Samsung Telecom R & D Center

Hyeon-Woo Lee

Sung-Ho Choi

Ju-Ho Lee

Kook-Heui Lee

Joon-Goo Park

Yong-Jun Kwak

Sung-Hoon Kim

Jae-Yoel Kim

Chang-soo Park

Dong-seek Park

Ho-Kyu Choi

Sung-Oh Hwang

Soon-Young Yoon

Jae-min Ahn

Hwan-Joon Kwon

Sung-Jin Kim

Hee-Won Kang

Do-Young Kim

Su-Ryong Jeong

Seung-Joo Maeng

Cheng Shan

Hak-Ju Lee

Young-Kwon Cho

Yeon-Ju Lim

Kyung-Joo Suh

Hi-Chan Moon

Eun-Taek Lim

Chae-Man Lim

Young-Soo Park

Young-Bin Chang

Jung-Je Son

Youn-Sun Kim

Jae-Hee Cho

Ping Wang

Jeong-ho Park

Beom-Sik Bae

Wuk Kim

Joo-Young Kim

Peter Jung

Sang-Kyung Sung

Pan-Yuh Joo

Bruno Clerckx

Jing Zhao

Jin-Soo Park

Mi-Hyun Lee

Dong-Ho Cho

Chan-Byoung Chae

Hak-ju Lee

Jin-Weon Chang

Myeong-Sook Seo

Hye-Young Lee

Chang-Ho Suh

Seong-Hun Kim

David Mazzarese

Shuangfeng Han

Seok-Hyun Yoon

Jung-Soo Woo

Sung-Kwon Hong

Geun-Ho Lee

Joong-Ho Jeong

Yong-Ho Park

Seong-Ill Park

Sang-Hwan Park

Deok-Ki Kim

Hoon Huh

Jae-Chon Yu

Byung-Jae Kwak

Tobias Scholand

Jae-Kwon Oh

Song-Nam Hong

Eun-Yong Kim

Gang Liu

Joon-Ho Park

Chang Soo Park

Song-Hun Kim

Kwang-Yung Jeong

Jeong-Gon Kim

Eun-Hui Bae

Chan-Soo Hwang

Jin-Seok Lee

Chunying Sun

Sun-Mi Kim

Jun-Sung Lim

Jung-Min Ro

Jong-Hoon Ann

Young-Jun Park

Jae-Heung Yeom

Dong-Seek Park

Woo-Jae Kim

Chunhua Wang

Young-Kyun Kim

Seong-Soo Park

Katz Marcos Daniel

Seok Hyun Yoon

Byoung-Yun Kim

Een-Kee Hong

Dong-Hee Kwon

Shuwei Zhang

Admir Burnic

Achim Seebens

A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service through a primary carrier during a second service in progress through a secondary carrier, a PICH (Paging Indication Channel) transmitter in a Node B transmits paging indication information to the UE through the primary carrier by oscillating the primary carrier as a transmission frequency. A PCH (Paging Channel) transmitter transmits paging information to the UE through the primary carrier or the secondary carrier by oscillating the primary carrier or the secondary carrier as the transmission frequency under a predetermined control. A PBMSCH (Physical Broadcast Multicast Shared Channel) transmitter transmits data of the second service through the secondary carrier by oscillating the secondary carrier as the transmission frequency. A controller controls the primary carrier or the secondary carrier to be oscillated as the transmission frequency of the PCH transmitter if the paging indication information indicates paging.

Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service

Methods and apparatuses for transmitting/receiving control information in a system in which multiple frequencies are used to carry multiple services by means of transmission frames, which are constituted of time resources and/or time-frequency resources. Control information regarding frame configuration information is not transmitted over a separate control channel but over a data channel. The service traffic for each non-primary service traffic may include control information for a primary service. Thus, even when a receiver changes the current service to a target service, control information necessary to detect the location of the target service in a frame and demodulate the target service can be acquired, and thus a service change can be made without reading a separate control channel.

Method and apparatus for transmitting/receiving control information in broadcast communication system

A multiple antenna system including a mobile station and a base station are operable to perform a method for transmitting control information for interference mitigation. A Mobile Station (MS) can transmit control information for interference mitigation. The MS determines a first Precoding Matrix Index (PMI) and a second PMI for interference from an adjacent Base Station (BS). Based on a correlation level from correlation values between one of the first PMI and second PMI and the remaining PMIs in the codebook, the MS determines a level of a subset of PMIs, and feeds back information indicating the correlation level.

Method and apparatus for transmitting control information for interference mitigation in multiple antenna system

Disclosed is a method and apparatus for transmitting/receiving control information in a system in which one or more Radio Frequencies (RFs) are used to carry multiple services through a frame constituted by time resources or time-frequency resources. Control information regarding frame configuration information is not transmitted over a separate control channel but over a data channel through which to transmit primary service traffic among all service traffic, and each non-primary service traffic other than the primary service traffic includes control information for a primary service. Thus, even when a receiver changes the current service to a target service, control information necessary to detect the location of the target service in a frame and demodulate the target service can be acquired, and thus a service change can be made without reading a separate control channel.

Paging apparatus and method in a mobile communication system providing multimedia broadcast service

A method for operating a Mobile Station (MS) in a Multiple Input Multiple Output (MIMO) wireless communication system is provided. The method includes measuring channel quality for a serving Base Station (BS), if the channel quality is less than a threshold, measuring interference power from one or more neighbor BSs, determining a Precoding Matrix Index (PMI) and a priority metric for each neighbor BS, and feeding back at least one of the PMI, a PMI type indicator, the priority metric, and the channel quality to the serving BS.

Apparatus and method for inter-cell interference cancellation in MIMO wireless communication system

A method for HARQ reordering in Enhanced Uplink Dedicated Channel of WCDMA system includes following steps: locating the soft combination buffer in the Node B and the reordering buffer in the SRNC; locating the HARQ entity in the Node B; locating the reordering queue distribution entity, the reordering entity and the disassembly entity in the SRNC. This invention adopts the separation technology of the soft combination buffer and the reordering buffer, the separation model can not only ensure the diversity gain, but also reduce the receiving delay and save the buffer space. Three mechanisms (timer mechanism, window mechanism and SBI mechanism) are proposed to prevent the blocking of the reordering buffer, which degrades the blocking to the least level, improves the receiving efficiency and the system performance. Aiming at the SBI mechanism, the invention proposes the new DCH data frame structure on the Iub interface and the Iur interface.

HARQ reordering method for WCDMA enhanced uplink dedicated channel

Disclosed is an apparatus and method for transmitting/receiving a control message in a wireless communication system that is designed to reduce overhead associated with transmission/reception of the control message. To this end, a transmission apparatus generates a control message, generates a compressed control message by compressing the generated control message, based on a control message that has been lastly received by a reception apparatus from among previously transmitted control messages, selects one of the generated control message and the generated compressed control message according to whether or not the control message lastly received by the reception apparatus exists, and transmits the selected one of the generated control message and the generated compressed control message to the reception apparatus. Therefore, it is possible to reduce resources used for control message transmission, and thus increase the use efficiency of the resources.

Apparatus and method for transmitting/receiving control message in wireless communication system

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

Provided is an apparatus and method for controlling power in a cognitive radio wireless communication system, the method comprising: performing channel scheduling and the first power control for at least one terminal; checking whether the at least one terminal exist within constraint area, and determining whether the at least one terminal within constraint area cause interference to incumbent system; and performing the secondary power control so that an allocating power may be less than the maximum tolerable interference.

Method and apparatus for jointly controlling transmit power in cognitive radio communication system

A method and apparatus for estimating a geo-location of a terminal in a wireless communication system are provided. In a method of operating a terminal for providing geo-location information in a cognitive ratio (CR) system, the method includes obtaining first ranging information and transmitting a first ranging code to a base station (BS) in a network entry process; receiving an allocated second ranging resource from the BS; and transmitting a second ranging code.

Method and apparatus for estimating geo-location of terminal wireless communication system

A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.

Apparatus and method for synchronizing channels in a WCDMA communication system

A security management method in a mobile communication system supporting Proxy Mobile Internet Protocol (IP). In the security management method, a Mobile Node (MN), a Serving Packet Data Service Node (S-PDSN), and an Authentication, Authorization and Accounting (AAA) server generate a security key of the Proxy Mobile IP. Upon receipt of information for authentication of a security key from the MN, the S-PDSN sends an access request message to the AAA server and receives information for verification of the security key. The S-PDSN sends a first message for requesting verification of the security-related key to a Home Agent (HA). The HA verifies the security-related key through the AAA server and sends a second message to the S-PDSN when the security-related key is verified. The S-PDSN sends a message indicating initiation of the Proxy Mobile IP, to the MN.

Method for managing security in a mobile communication system using proxy mobile internet protocol and system thereof

An encoding method and apparatus for a DCH (Dedicated Channel) encoder and a DSCH (Downlink Shared Channel) encoder in a transmitter for a mobile communication system including the DCH encoder for encoding k bits among 10 input TFCI (Transport Format Combination Indicator) bits and the DSCH encoder for encoding remaining (10&#x2212;k) bits among the input TFCI bits. The method comprises generating, by the DCH encoder, a first coded bit stream by encoding the k input bits into 32 bits, and outputting a (3k+1)-bit stream by puncturing the first coded bit stream according to a specific mask pattern corresponding to the k value; and generating, by the DSCH encoder, a second coded bit stream by encoding the (10&#x2212;k) input bits into 32 bits, and outputting a {3*(10&#x2212;k)+1}-bit stream by puncturing the second coded bit stream according to a specific mask pattern corresponding to the (10&#x2212;k) value.

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

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Suwon-shi, South Korea

Hyeon-Woo Lee