公开(公告)号：US20120190374A1

公开(公告)日：2012-07-26

申请号：US13381640

申请日：2009-06-30

申请人： Jun-Ho Jo ,  Seo-Woo Jang ,  Jae-Won Lim ,  Byoung-Hoon Kim

发明人： Jun-Ho Jo ,  Seo-Woo Jang ,  Jae-Won Lim ,  Byoung-Hoon Kim

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W72/085 ,  H04W84/045

摘要： A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource.

摘要翻译： 一种用于管理毫微微小区的无线电资源的方法包括：通过使用大多数预设无线电资源，由毫微微小区向一个或多个UE提供服务; 从所述一个或多个UE接收测量结果; 基于所述测量结果确定一个或多个相邻毫微微小区是否位于附近; 并且如果确定相邻毫微微小区位于附近，则将预置无线电资源减少为小型无线电资源并向小型无线电资源提供服务。

公开(公告)号：US09084271B2

公开(公告)日：2015-07-14

申请号：US13381640

申请日：2009-06-30

申请人： Jun-Ho Jo ,  Seo-Woo Jang ,  Jae-Won Lim ,  Byoung-Hoon Kim

发明人： Jun-Ho Jo ,  Seo-Woo Jang ,  Jae-Won Lim ,  Byoung-Hoon Kim

IPC分类号： H04W72/00 ,  H04W72/08 ,  H04W84/04

CPC分类号： H04W72/085 ,  H04W84/045

摘要： A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource.

摘要翻译： 一种用于管理毫微微小区的无线电资源的方法包括：通过使用大多数预设无线电资源，由毫微微小区向一个或多个UE提供服务; 从所述一个或多个UE接收测量结果; 基于所述测量结果确定一个或多个相邻毫微微小区是否位于附近; 并且如果确定相邻毫微微小区位于附近，则将预置无线电资源减少为小型无线电资源并向小型无线电资源提供服务。

公开(公告)号：US08792573B2

公开(公告)日：2014-07-29

申请号：US13378038

申请日：2009-11-17

申请人： Byoung-Hoon Kim ,  Wonjin Sung ,  Jaewon Chang ,  Jun-Ho Jo ,  Dong-Uk Lee ,  Jaewon Kim ,  Ki Jun Kim

发明人： Byoung-Hoon Kim ,  Wonjin Sung ,  Jaewon Chang ,  Jun-Ho Jo ,  Dong-Uk Lee ,  Jaewon Kim ,  Ki Jun Kim

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04W52/40 ,  H04B7/0404 ,  H04B7/0639 ,  H04W52/241 ,  H04W52/247

摘要： Disclosed are a method and apparatus capable of enhancing a closed loop multi-input multi-output (MIMO) capacity through distributed discrete power control in the case of cooperatively transmitting information to multiple users through a downlink.

摘要翻译： 公开了一种在通过下行链路向多个用户协同传输信息的情况下，能够通过分布式离散功率控制来提高闭环多输入多输出（MIMO）容量的方法和装置。

公开(公告)号：US20120128043A1

公开(公告)日：2012-05-24

申请号：US13322885

申请日：2009-11-03

申请人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

发明人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

IPC分类号： H04B15/00 ,  H04B1/38

CPC分类号： H04W16/14 ,  H04W74/0808

摘要： Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.

摘要翻译： 公开了一种用于在使用认知无线电的通信系统中确定用于减少使用相同频带的用户之间的干扰的帧结构的装置和方法，所述方法包括：收集与主用户相关的信道状态信息，优先占用 对频段执行频谱检测，以检查主用户的业务是否存在，基于所收集的信道状态信息，基于所收集的信道状态信息来确定考虑到主用户的干扰的要发送的数据帧的长度，如果其中的信道 通过频谱感测来感测主要用户的业务不存在，根据所确定的帧长度构建数据帧，以经由所感测到的信道进行发送，并且如果要附加发送的数据存在，则重新执行该信道的频谱感测， 并重新检查主要用户的流量是否存在。

公开(公告)号：US08724652B2

公开(公告)日：2014-05-13

申请号：US13322885

申请日：2009-11-03

申请人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

发明人： Dae-Sik Hong ,  Go-San Noh ,  Han-Ho Wang ,  Jun-Ho Jo ,  Yong-Ho Seok ,  Byoung-Hoon Kim

IPC分类号： H04W74/08

CPC分类号： H04W16/14 ,  H04W74/0808

摘要： Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.

摘要翻译： 公开了一种用于在使用认知无线电的通信系统中确定用于减少使用相同频带的用户之间的干扰的帧结构的装置和方法，所述方法包括：收集与主用户相关的信道状态信息，优先占用 对频段执行频谱检测，以检查主用户的业务是否存在，基于所收集的信道状态信息，基于所收集的信道状态信息来确定考虑到主用户的干扰的要发送的数据帧的长度，如果其中的信道 通过频谱感测来感测主要用户的业务不存在，根据所确定的帧长度构建数据帧，以经由所感测到的信道进行发送，并且如果要附加发送的数据存在，则重新执行该信道的频谱感测， 并重新检查主要用户的流量是否存在。

公开(公告)号：US08665975B2

公开(公告)日：2014-03-04

申请号：US13376831

申请日：2009-11-06

申请人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

发明人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

IPC分类号： H04L27/28

CPC分类号： H04B7/043 ,  H04B7/0478 ,  H04B7/0639

摘要： Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）系统中接收数据的方法，该方法包括：通过使用码本中包含的一个波束形成向量解码从发射机发送的波束形成向量，其中波束形成向量以分层结构形成 根据无线电信道的改变方向，频道改变方向的数量和变化率中的至少一个; 基于无线电信道确定是否更新波束形成向量; 当确定需要更新波束形成矢量时，选择具有分层结构的码本中包括的其它波束形成矢量; 关于指示所选波束形成向量在码本的层级结构中位于发射机的索引的反馈信息; 以及通过使用所选择的波束形成向量来解码从发射机接收的数据。

公开(公告)号：US20120093250A1

公开(公告)日：2012-04-19

申请号：US13378038

申请日：2009-11-17

申请人： Byoung-Hoon Kim ,  Wonjin Sung ,  Jaewon Chang ,  Jun-Ho Jo ,  Dong-Uk Lee ,  Jaewon Kim ,  Ki Jun Kim

发明人： Byoung-Hoon Kim ,  Wonjin Sung ,  Jaewon Chang ,  Jun-Ho Jo ,  Dong-Uk Lee ,  Jaewon Kim ,  Ki Jun Kim

IPC分类号： H04B7/02

CPC分类号： H04W52/40 ,  H04B7/0404 ,  H04B7/0639 ,  H04W52/241 ,  H04W52/247

摘要： Disclosed are a method and apparatus capable of enhancing a closed loop multi-input multi-output (MIMO) capacity through distributed discrete power control in the case of cooperatively transmitting information to multiple users through a downlink.

摘要翻译： 公开了一种在通过下行链路向多个用户协同传输信息的情况下，能够通过分布式离散功率控制来提高闭环多输入多输出（MIMO）容量的方法和装置。

公开(公告)号：US20120087400A1

公开(公告)日：2012-04-12

申请号：US13376831

申请日：2009-11-06

申请人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

发明人： Jaewon Kim ,  Jaewon Chang ,  Dong-Uk Lee ,  Wonjin Sung ,  Byoung-Hoon Kim ,  Jun-Ho Jo

IPC分类号： H04B1/38 ,  H04L27/06

CPC分类号： H04B7/043 ,  H04B7/0478 ,  H04B7/0639

摘要： Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）系统中接收数据的方法，该方法包括：通过使用码本中包含的一个波束形成向量解码从发射机发送的波束形成向量，其中波束形成向量以分层结构形成 根据无线电信道的改变方向，频道改变方向的数量和变化率中的至少一个; 基于无线电信道确定是否更新波束形成向量; 当确定需要更新波束形成矢量时，选择具有分层结构的码本中包括的其它波束形成矢量; 关于指示所选波束形成向量在码本的层级结构中位于发射机的索引的反馈信息; 以及通过使用所选择的波束形成向量来解码从发射机接收的数据。

公开(公告)号：US08665799B2

公开(公告)日：2014-03-04

申请号：US11853704

申请日：2007-09-11

申请人： Durga Prasad Malladi ,  Juan Montojo ,  Junyi Li ,  Byoung-Hoon Kim

发明人： Durga Prasad Malladi ,  Juan Montojo ,  Junyi Li ,  Byoung-Hoon Kim

IPC分类号： H04W4/00 ,  H04W72/00

CPC分类号： H04W56/001 ,  H04B1/713 ,  H04J11/0069 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2656 ,  H04W48/12 ,  H04W48/16

摘要： Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).

摘要翻译： 描述用于发送同步信号以辅助用户设备（UE）执行小区搜索的技术。 在一种设计中，用于小区的基站可以生成并发送主同步信号和辅同步信号，UE可以在加电时用于初始小区搜索。 基站还可以生成和发送一个或多个信标信号，其可以由UE用于相邻小区搜索以检测相邻小区。 可以基于系统带宽来确定要发送的信标信号的数量和可用于每个信标信号的子载波的集合。 每个信标信号可以被映射到每个信标符号周期中的子载波集合中的一个子载波。 可以基于信标跳变模式或信标代码来确定该一个子载波，并且可以依赖于小区标识符（ID）。

公开(公告)号：US08565184B2

公开(公告)日：2013-10-22

申请号：US13202537

申请日：2010-02-19

申请人： Han-Byul Seo ,  Byoung-Hoon Kim

发明人： Han-Byul Seo ,  Byoung-Hoon Kim

IPC分类号： H04B7/14 ,  H04B7/208 ,  H04J1/10 ,  H04J4/00 ,  H04W4/00 ,  H04Q11/02

CPC分类号： H04W72/04 ,  H04B7/15557 ,  H04L5/0044 ,  H04L5/0048

摘要： The present invention relates to a method and to an apparatus for transmitting/receiving data in a relay communication system. The method comprises the steps of: setting, as a guard band, the first predetermined number of symbol transmission slots of a data transmission period in a subframe resource element of a downlink channel constituted by a control signal transmission period to which a control signal is allocated and the data transmission period to which downlink data is allocated; allocating reference signals to symbols of the data transmission period; puncturing the symbols corresponding to the guard band from among the symbols to which said reference signals are allocated; and transmitting signals to which said reference signals are allocated.

摘要翻译： 本发明涉及在中继通信系统中发送/接收数据的方法和装置。 该方法包括以下步骤：将由控制信号分配到的控制信号发送周期构成的下行链路信道的子帧资源元素中的数据发送周期的第一预定数量的符号发送时隙 和分配下行链路数据的数据传输周期; 将参考信号分配给数据传输周期的符号; 从分配了所述参考信号的符号中删除与保护频带对应的符号; 以及发送分配了所述参考信号的信号。