公开(公告)号：EP1703658A1

公开(公告)日：2006-09-20

申请号：EP06005199.2

申请日：2006-03-14

申请人： Samsung Electronics Co., Ltd. ,  Yonsei University

发明人： Kim, Eung-Sun ,  Lee, Jong-Hyeuk ,  Ham, Jae-Sang ,  Lee, Chung-Yong ,  Shim, Sei-Joon ,  Kim, Kyeong-Yeon

IPC分类号： H04L1/06 ,  H04L1/00

CPC分类号： H04L1/0675 ,  H04L1/0003 ,  H04L1/0656

摘要： A user allocating apparatus and method in a multiple antenna mobile communication system supporting multi-user diversity is provided. Each user calculates effective Signal-to-Interference Noise Ratios (SINRs) and bit loading over every possible detection order and selects a detection order maximizing the number of channels with a minimum product of the minimum symbol distance of a modulation scheme and an effective SINR, thereby minimizing an average error probability. A base station receives detection orders from users and selects a user with a maximum detection order value. The base station then transmits data to the selected user using modulation schemes determined by the user for the transmit antennas.

摘要翻译： 提供了一种支持多用户分集的多天线移动通信系统中的用户分配装置和方法。 每个用户在每个可能的检测顺序上计算有效的信号与干扰噪声比（SINR）和比特加载，并且以调制方案和有效SINR的最小符号距离的最小乘积选择最大化信道数量的检测顺序， 从而最小化平均误差概率。 基站从用户接收检测顺序，并选择具有最大检测顺序值的用户。 然后，基站使用由用户为发射天线确定的调制方案向所选择的用户发送数据。

公开(公告)号：EP1565017A3

公开(公告)日：2006-08-09

申请号：EP04031050.0

申请日：2004-12-30

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  THE UNIVERSITY COURT OF THE UNIVERSITY OF EDINBURGH

发明人： Yun, Sang-Boh ,  Cho, Sung-Hyun ,  Kim, Yung-Soo ,  Kim, Eung-Sun ,  Lee, Yeon-Woo ,  McLaughlin, Stephen

IPC分类号： H04Q7/36 ,  H04B7/26 ,  H04Q7/38

CPC分类号： H04W16/32 ,  H04W16/28

摘要： A method of constructing a micro- or pico-cells and a virtual macro-cell hierarchical cellular system structure comprising contiguous cells each containing a base station and sectors, wherein a virtual cell comprising three surrounding FDD macro-cell base stations over underlay the TDD micro- or pico-cells. In the proposed TDD/virtual FDD hierarchical cellular structure, a method of locating underlay cells' base station and macro-cells' base station to keep a least interference distance and a method of aligning the TDD micro-or pico-cells' sectors antenna beam direction with the FDD macro-cells' sectors beam direction are proposed, such that this system can suppress the additional inter-system interference and adjacent channel interference. The algorithm of utilising and borrowing the underused FDD macro-cells' resource and the mechanism of deciding the feasible resource borrowing region and smart antenna applicable region is proposed in such a way that the radio network controller and TDD micro- or pico-cell base stations can build up and decide the preference list of which sector, users, and resource to be served, which eventually resulting in the flexible and adaptive radio resource management of the RNC and achieving the optimal utilisation of the overall system resource.

摘要翻译： 一种构建微小区和微微小区的虚拟宏小区分层蜂窝系统结构的方法，包括每个包含基站和扇区的连续小区，其中包括三个周围的FDD宏小区基站的虚拟小区， - 或微细胞。 在所提出的TDD /虚拟FDD分层蜂窝结构中，定位底层小区的基站和宏小区的基站以保持最小的干扰距离的方法以及对准TDD微波或微微小区扇区天线波束的方法 提出了FDD宏小区扇区波束方向的方向，使得该系统可以抑制额外的系统间干扰和相邻信道干扰。 提出了利用和借用未充分利用的FDD宏小区资源的算法以及决定可行资源借用区域和智能天线适用区域的机制，使无线网络控制器和TDD微型或微微小区基站 可以建立和决定要服务的部门，用户和资源的偏好列表，最终导致RNC的灵活自适应无线资源管理，并实现整个系统资源的最佳利用。

公开(公告)号：EP1603295A2

公开(公告)日：2005-12-07

申请号：EP05012029.4

申请日：2005-06-03

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  Postech Foundation

发明人： Kim, Eung-Sun ,  Lee, Jong-Hyeuk ,  Im, Gi-Hong, Dept. of Electronic & Electrical Eng ,  Park, Cheol-Jin, Dept. of Electronic & Elect. Eng.

IPC分类号： H04L27/26

CPC分类号： H04L27/264 ,  H04L27/2634

摘要： Disclosed is a multicarrier-based wireless communication system including a base station for providing a multiple access service to terminals which filter multitone transmitting signals through filters and transmit the filtered signals. A transmitter of the respective terminals includes a multiplexer for multiplexing an input signal and outputting the signal as a plurality of transmitting signals, at least one filter bank for filtering the plurality of transmitting signals, an inverse fast Fourier transformer for executing inverse fast Fourier transform of the filtered transmitting signals output from the filter bank, and a filter information generator for providing filter information to the filter bank. Since the transmitter of the present invention distinguishes users from each other by a filter and thus no synchronization is required between users, which causes a problem in an uplink of the multicarrier-based wireless communication system, system performance can be expected to be improved.

摘要翻译： 公开了一种基于多载波的无线通信系统，其包括用于向通过滤波器过滤多频发送信号的终端提供多址服务的基站，并发送经滤波的信号。 各个终端的发射机包括多路复用器，用于多路复用输入信号并输出​​该信号作为多个发送信号，至少一个用于对多个发送信号进行滤波的滤波器组，用于执行快速傅立叶逆变换 从滤波器组输出的经滤波的发送信号，以及用于向滤波器组提供滤波器信息的滤波器信息发生器。 由于本发明的发射机通过滤波器将用户彼此区分，因此在用户之间不需要同步，这导致基于多载波的无线通信系统的上行链路中的问题，可以期望提高系统性能。

公开(公告)号：EP1600792A2

公开(公告)日：2005-11-30

申请号：EP05011629.2

申请日：2005-05-30

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  Yonsei University

发明人： Park, Goo-Hyun ,  Lee, Ye-Hoon ,  Kim, Eung-Sun ,  Lee, Jong-Hyeuk ,  Kim, Ho-Jin ,  Hong, Dae-Sik

IPC分类号： G01S11/10

CPC分类号： G01S11/10

摘要： A velocity estimation apparatus and method for a communication system including a transmitter for transmitting signals through wireless channels and a receiver for receiving the signals and restoring data. The apparatus includes a pilot signal detector for detecting a pilot signal from a received signal, a maximum Doppler frequency estimator for estimating a maximum Doppler frequency using the pilot signal detected by the pilot signal detector, and an adaptive type band-limit filter having a limit band based on a previous output value of the maximum Doppler frequency estimator. By using the pilot signal, which is removed with noise, while passing through the band-limit filter, it is possible to precisely estimate a maximum Doppler frequency, and thereby estimate the velocity.

摘要翻译： 一种用于通信系统的速度估计装置和方法，包括用于通过无线信道发送信号的发射机和用于接收信号和恢复数据的接收机。 该装置包括用于从接收信号检测导频信号的导频信号检测器，用于使用由导频信号检测器检测的导频信号来估计最大多普勒频率的最大多普勒频率估计器，以及具有限制的自适应型限幅滤波器 基于最大多普勒频率估计器的先前输出值的频带。 通过使用在通过带限滤波器时被噪声去除的导频信号，可以精确地估计最大多普勒频率，从而估计速度。

公开(公告)号：EP1564952A2

公开(公告)日：2005-08-17

申请号：EP05001949.6

申请日：2005-01-31

申请人： Samsung Electronics Co., Ltd. ,  Yonsei University

发明人： Lee, Sang-Jin Dept. of Elec. and Elec. Engineering ,  Seo, Jong-Soo Dept. of Elec. and Elec. Engineering ,  Kim, Eung-Sun ,  Lee, Jong-Hyeuk

IPC分类号： H04L27/26

CPC分类号： H04L27/2662 ,  H04L27/2607 ,  H04L27/2678

摘要： A synchronization method in an OFDM based communication system. A transmitting side generates and transmits an OFDM symbol having a constant cyclic prefix, independent of time domain data symbols that are to be transmitted. A receiving side estimates a timing synchronization error based on the known cyclic prefix. Because the timing synchronization error is estimated based on the constant cyclic prefix, which is always known, a highly reliable correlation is achieved, thereby improving the accuracy of synchronization.

摘要翻译： 基于OFDM的通信系统中的同步方法。 发送侧生成并发送具有恒定循环前缀的OFDM符号，与待发送的时域数据符号无关。 接收侧基于已知的循环前缀来估计定时同步误差。 由于定时同步误差是基于始终是已知的恒定循环前缀来估计的，所以实现了高度可靠的相关性，从而提高了同步的精度。