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    • 1. 发明授权
    • Method and apparatus for controlling neighbor cell interference
    • 用于控制相邻小区干扰的方法和装置
    • US09100970B2
    • 2015-08-04
    • US13501646
    • 2010-10-12
    • Hee Soo LeeJae Young AhnNam Hoon Park
    • Hee Soo LeeJae Young AhnNam Hoon Park
    • H04B1/00H04W72/08
    • H04W72/082
    • A method for managing neighbor cell interference comprises: a step of measuring inter-cell interference control information by subframe units; and a step of transmitting the inter-cell interference control information measured by subframe units, to at least one neighbor cell for each of the subframes. The interference management method of the present invention dynamically performs neighbor cell interference management under the condition where neighbor cell interference changes in terms of time, thus improving performance of a system. Further, the interference management method of the present invention maps a wireless resource property pattern to a cell ID. Consequently, the system adopting the method of the present invention exhibits excellent performance in any environment.
    • 一种用于管理邻居小区干扰的方法包括:通过子帧单元测量小区间干扰控制信息的步骤; 以及将通过子帧单位测量的小区间干扰控制信息发送到每个子帧的至少一个相邻小区的步骤。 本发明的干扰管理方法在相邻小区干扰时间变化的情况下动态地执行相邻小区干扰管理,从而提高系统的性能。 此外,本发明的干扰管理方法将无线资源属性模式映射到小区ID。 因此,采用本发明方法的系统在任何环境中表现出优异的性能。
    • 2. 发明授权
    • Method for relaying between a base station and a mobile station
    • 用于在基站和移动台之间进行中继的方法
    • US08275308B2
    • 2012-09-25
    • US12443670
    • 2007-07-16
    • Hyo-Jin LeeHee-Soo LeeHyun-Kyu Chung
    • Hyo-Jin LeeHee-Soo LeeHyun-Kyu Chung
    • H04B3/36
    • H04L1/1835H04B7/02H04B7/026H04B7/15592H04B7/2606H04L2001/0092
    • Disclosed is a cooperative relay station that relays between a base station and a mobile station when retransmitting a signal. Also, disclosed is a base station that receives a signal from a mobile station in mutual cooperation with the cooperative relay station. After the cooperative relay station receives and decodes a signal that the mobile station transmits to the base station or a service relay station, if an error of the decoded signal does not exist, it stores the received signal. If an error occurs when the base station decodes the signal that the mobile station transmits, the base station requests retransmission for the signal with the error to the cooperative relay station. If the cooperative relay station gets a request of retransmission, it transmits the signal that the base station requests to the base station. In this was, since an error rate may be reduced when the base station requests retransmission of the signal, resource reuse efficiency may become improved, interference may be reduced, and it is easy to adapt to a service being sensitive to time delay.
    • 公开了在重发信号时在基站和移动台之间进行中继的协作中继站。 此外,公开了一种从协作中继站相互协作地接收来自移动台的信号的基站。 在协作中继站接收并解码移动台向基站或服务中继站发送的信号之后,如果解码信号的错误不存在,则存储接收到的信号。 如果基站解码移动台发送的信号时发生错误,则基站向合作中继站请求具有错误的信号的重发。 如果协作中继站获得重传请求,则将基站请求的信号发送给基站。 这是因为,当基站请求重发信号时可能会降低错误率,所以资源重用效率可能会提高,可能会降低干扰,容易适应对时间延迟敏感的业务。
    • 5. 发明授权
    • Method for resource partition, assignment, transmission and reception for inter-cell interference migration in downlink of OFDM cellular systems
    • 用于OFDM蜂窝系统的下行链路中的小区间干扰迁移的资源分配,分配,发送和接收的方法
    • US08068785B2
    • 2011-11-29
    • US12065987
    • 2006-09-06
    • Jae-Young AhnHee-Soo LeeJae-Kyun Kwon
    • Jae-Young AhnHee-Soo LeeJae-Kyun Kwon
    • H04B1/00
    • 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。
    • 6. 发明授权
    • Transmitter and frequency hopping method of the same
    • 发射机和跳频方法相同
    • US07936805B2
    • 2011-05-03
    • US11721274
    • 2005-12-07
    • Hee Soo LeeJae Young Ahn
    • Hee Soo LeeJae Young Ahn
    • H04B1/707
    • H04L5/0007H04L5/0037H04L5/0044H04L5/0062
    • Provided are a transmitter and a frequency hopping method thereof. The transmitter includes: a channel encoder outputting a bit stream of encoded information data; a symbol mapper outputting a symbol stream obtained by constellating the bit stream; a frequency allocation and hopping part determining a frequency to be allocated to the symbol stream; and a multi-carrier modulator loading and outputting the symbol stream output by the frequency allocation and hopping part on a multi-carrier, wherein the frequency allocation and hopping part comprises a logical frequency mapping part determining a frequency capable of optimally averaging adjacent cell interference, and a physical frequency mapping part mapping the determined frequency one-to-one and determining a frequency.
    • 提供了一种发射机及其跳频方法。 发射机包括:信道编码器,输出编码信息数据的比特流; 输出通过构成比特流而获得的符号流的符号映射器; 确定要分配给符号流的频率的频率分配和跳频部分; 以及多载波调制器,其加载并输出由多载波上的频率分配和跳频部分输出的符号流,其中所述频率分配和跳频部分包括确定能够最佳平均相邻小区干扰的频率的逻辑频率映射部分, 以及物理频率映射部分,将确定的频率一对一地映射并确定频率。
    • 7. 发明申请
    • TRANSMITTER AND FREQUENCY HOPPING METHOD OF THE SAME
    • 发射机及其频率选择方法
    • US20090238242A1
    • 2009-09-24
    • US11721274
    • 2005-12-07
    • Hee Soo LeeJae Young Ahn
    • Hee Soo LeeJae Young Ahn
    • H04B1/713
    • H04L5/0007H04L5/0037H04L5/0044H04L5/0062
    • Provided are a transmitter and a frequency hopping method thereof. The transmitter includes: a channel encoder outputting a bit stream of encoded information data; a symbol mapper outputting a symbol stream obtained by constellating the bit stream; a frequency allocation and hopping part determining a frequency to be allocated to the symbol stream; and a multi-carrier modulator loading and outputting the symbol stream output by the frequency allocation and hopping part on a multi-carrier, wherein the frequency allocation and hopping part comprises a logical frequency mapping part determining a frequency capable of optimally averaging adjacent cell interference, and a physical frequency mapping part mapping the determined frequency one-to-one and determining a frequency.
    • 提供了一种发射机及其跳频方法。 发射机包括:信道编码器,输出编码信息数据的比特流; 输出通过构成比特流而获得的符号流的符号映射器; 确定要分配给符号流的频率的频率分配和跳频部分; 以及多载波调制器,其加载并输出由多载波上的频率分配和跳频部分输出的符号流,其中所述频率分配和跳频部分包括确定能够最佳平均相邻小区干扰的频率的逻辑频率映射部分, 以及物理频率映射部分,将确定的频率一对一地映射并确定频率。
    • 8. 发明申请
    • METHOD OF CONTROLLING BASE STATIONS TO SUPPRESS INTER-CELL INTERFERENCE
    • 控制基站以抑制细胞间干扰的方法
    • US20090233616A1
    • 2009-09-17
    • US11720838
    • 2005-12-05
    • Jae Kyun KwonHee Soo LeeJae Young Ahn
    • Jae Kyun KwonHee Soo LeeJae Young Ahn
    • H04B15/00H04W72/00
    • H04J13/00H04B1/7103H04B2201/70702
    • A method of controlling base stations that is capable of suppressing inter-cell interference and efficiently utilizing available resources. According to one aspect, information received on path loss from a terminal is used to determine a time region for the terminal based on the path loss information. Communication with the terminal is performed within the determined time region. According to another aspect, information received on path loss from a terminal is used to determine a frequency region for the terminal based on the path loss information. Communication with the terminal is performed within the determined frequency region. According to yet another aspect, information received on path loss from a terminal is used to determine a code region for the terminal based on the path loss information. Communication with the terminal is performed within the determined code region.
    • 一种控制能够抑制小区间干扰并有效利用可用资源的基站的方法。 根据一个方面,使用从终端接收到的路径损耗的信息,基于路径损耗信息来确定终端的时间区域。 在确定的时间区域内执行与终端的通信。 根据另一方面,使用从终端接收到的路径损耗的信息,用于基于路径损耗信息确定终端的频率区域。 在确定的频率区域内执行与终端的通信。 根据另一方面,使用从终端接收到的路径损耗的信息,用于基于路径损耗信息来确定终端的代码区域。 在确定的代码区域内执行与终端的通信。