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    • 101. 发明授权
    • Dynamic resource allocation method based on frequency reuse partitioning for OFMDA/FDD system, and frame transmission method therefor
    • 基于OFMDA / FDD系统的频率复用分区的动态资源分配方法及其帧传输方法
    • US08116780B2
    • 2012-02-14
    • US12063933
    • 2006-08-17
    • Hee-Soo LeeJae-Young AhnKyung-Hi ChangJoo HeoIn-Suk Cha
    • Hee-Soo LeeJae-Young AhnKyung-Hi ChangJoo HeoIn-Suk Cha
    • H04W72/00
    • H04W16/10H04W28/22H04W72/0453
    • Provided are a dynamic resource allocation method based on frequency reuse partitioning for an Orthogonal Frequency Division Multiple Access (OFDMA) system, and a frame transmission method therefor. The dynamic resource allocation method includes: a) dividing a coverage into cells based on frequency reuse partitioning; b) selecting a candidate user to receive a channel allocated thereto based on the ratio; c) acquiring distance information for the candidate user; and d) checking whether the candidate user is in an inner or outer cell area based on the distance information. If the candidate user is in the inner cell area, a subchannel group among subchannel groups having a Frequency Reuse Factor (FRF) lower than a threshold value is selected and subcarriers of the selected subchannel group is allocated. If the candidate user is in the outer cell area, a subchannel group among subchannel groups having a FRF higher than the threshold value is selected.
    • 提供了一种基于正交频分多址(OFDMA)系统的频率复用分割的动态资源分配方法及其帧传输方法。 动态资源分配方法包括:a)基于频率重用分区将覆盖划分为小区; b)基于所述比率选择候选用户以接收分配给其的信道; c)获取候选用户的距离信息; 以及d)基于距离信息来检查候选用户是否在内部或外部小区区域。 如果候选用户在内部小区区域,则选择具有低于阈值的频率重用因子(FRF)的子信道组之中的子信道组,并且分配所选择的子信道组的子载波。 如果候选用户在外部小区区域,则选择FRF高于阈值的子信道组之中的子信道组。
    • 105. 发明申请
    • METHOD FOR RESOURCE PARTITION, ASSIGNMENT, TRANSMISSION AND RECEPTION FOR INTER-CELL INTERFERENCE MIGRATION IN DOWNLINK OF OFDM CELLULAR SYSTEMS
    • OFDM细胞系统下行链路间干扰移动的资源分配,分配,传输和接收方法
    • US20090069023A1
    • 2009-03-12
    • US12065987
    • 2006-09-06
    • Jae-Young AhnHee-Soo LeeJae-Kyun Kwon
    • Jae-Young AhnHee-Soo LeeJae-Kyun Kwon
    • H04W72/00H04L27/28
    • H04W16/04H04L5/0007H04L5/0044H04L5/0053H04L5/006H04W72/00H04W72/082
    • A resource division, allocation, and transmitting/receiving method of downlink for reducing inter-cell interference in an orthogonal frequency division multiplexing system are provided. Entire downlink radio resources are divided into a traffic resource group for a traffic channel and a control resource group for a control channel, the traffic resource group is divided into a first traffic resource group for the intra-cell mobile terminals and a second traffic resource group for a cell-boundary mobile terminal, and a part of the first traffic resource group is imaginarily divided into a (1−1)-th preliminary traffic resource group, the (1−1)-th preliminary traffic resource group being a preliminary resource group for the cell-boundary mobile terminal. The control resource group is allocated to a control channel for the intra-cell mobile terminal; and a resource of the first traffic resource group or the second traffic resource group is allocated to a traffic channel for the mobile terminal according to inter-cell interference affected to the mobile terminal. Radio resources may be reused in each downlink cell of the OFDM system, the traffic may be rapidly transmitted to the cell boundary mobile terminal, a system capacity may be increased, the cell plane may be easily performed, and the system capacity may not be decreased although the mobile terminal number, locations, and traffic density is not uniform.
    • 提供了用于减少正交频分复用系统中的小区间干扰的下行链路的资源划分,分配和发送/接收方法。 整个下行链路无线电资源被划分为用于业务信道的业务资源组和用于控制信道的控制资源组,业务资源组被划分成用于小区内移动终端的第一业务资源组和第二业务资源组 对于小区边界移动终端,将第一业务资源组的一部分想象地划分为第(1-1)个初步业务资源组,所述第(1-1)个初步业务资源组为初始资源 小区边界移动终端。 控制资源组被分配给小区内移动终端的控制信道; 并且根据影响到移动终端的小区间干扰,将第一业务资源组或第二业务资源组的资源分配给移动终端的业务信道。 无线电资源可以在OFDM系统的每个下行链路小区中重新使用,业务可以被快速地发送到小区边界移动终端,可以增加系统容量,可以容易地执行小区平面,并且系统容量可能不会降低 虽然移动终端的数量,位置和交通密度不均匀。
    • 108. 发明申请
    • Mimo System Performing Hybrid Arq and Retransmission Method Thereof
    • 执行混合方案的Mimo系统及其重传方法
    • US20080256410A1
    • 2008-10-16
    • US12067874
    • 2006-09-25
    • In-Sook ParkJae-Young Ahn
    • In-Sook ParkJae-Young Ahn
    • H04L1/08G06F11/14
    • H04L1/0668H04L1/1819
    • The present invention relates to a multiple antenna transmitting/receiving apparatus that performs a hybrid automatic repeat request, and a retransmission method thereof. An initial transmission signal is encoded into the form of an initial transmission matrix and transmitted to the receiving apparatus, the initial transmission matrix corresponding to a linear dispersion code, with a result of error checking performed on the initial transmission signal by the receiving apparatus. When an error is detected in the initial transmission signal, a first retransmission signal is generated by encoding the initial transmission signal in the form of a retransmission matrix and transmitted to the receiving apparatus. The retransmission matrix is formed of constituent elements of the initial transmission matrix but different from the initial transmission matrix, and corresponds to a linear dispersion code having the same capacity and diversity gain as those of the initial transmission matrix.
    • 本发明涉及一种执行混合自动重传请求的多天线发送/接收装置及其重传方法。 初始传输信号被编码为初始传输矩阵的形式并且被发送到接收设备,对应于线性色散码的初始传输矩阵,由接收设备对初始传输信号执行错误检查的结果。 当在初始发送信号中检测到错误时,通过以重传矩阵的形式对初始发送信号进行编码而生成第一重发信号,并发送给接收装置。 重发矩阵由初始传输矩阵的组成元素形成,但不同于初始传输矩阵,并且对应于具有与初始传输矩阵相同的容量和分集增益的线性色散码。