公开(公告)号：US20110045862A1

公开(公告)日：2011-02-24

申请号：US12858841

申请日：2010-08-18

申请人： Jung-Sun UM ,  Myung-Sun SONG ,  Chang-Joo KIM ,  Gwangzeen KO ,  Sung-Hyun HWANG ,  Sang-Won KIM ,  Changhyun PARK

发明人： Jung-Sun UM ,  Myung-Sun SONG ,  Chang-Joo KIM ,  Gwangzeen KO ,  Sung-Hyun HWANG ,  Sang-Won KIM ,  Changhyun PARK

IPC分类号： H04W72/10 ,  H04B17/00

CPC分类号： H04W72/085 ,  H04W16/14 ,  H04W72/042

摘要： A CR apparatus for performing communication in a CR network includes: a communication unit configured to measure a channel estimation signal, transmit measured channel state information to a master device, and, when a QP of a reference channel arrives, make a communication channel transition to a candidate channel and perform communication; and a channel information management unit configured to receive and manage the channel state information measured by the communication unit and channel information comprising a candidate channel, into which a channel transition is to be made during a QP of the reference channel, received from the master device and control channel transition of the communication unit based on the channel information.

摘要翻译： 用于在CR网络中执行通信的CR装置包括：通信单元，被配置为测量信道估计信号，将测量的信道状态信息发送到主设备，并且当参考信道的QP到达时，使通信信道转换到 候选频道并进行通信; 以及信道信息管理单元，被配置为接收和管理由所述通信单元测量的信道状态信息，以及信道信息，所述信道信息包括在从所述主设备接收的参考信道的QP期间将要进行信道转换的候选信道 以及基于信道信息的通信单元的控制信道转换。

公开(公告)号：US20110129026A1

公开(公告)日：2011-06-02

申请号：US12990565

申请日：2009-05-01

申请人： Jung-Sun UM ,  Sung-Hyun Hwang ,  Gwangzeen Ko ,  Myung-Sun Song ,  Chang-Joo Kim

发明人： Jung-Sun UM ,  Sung-Hyun Hwang ,  Gwangzeen Ko ,  Myung-Sun Song ,  Chang-Joo Kim

IPC分类号： H04L27/00 ,  H04L27/28

CPC分类号： H04L5/0023 ,  H04L5/003

摘要： Provided are a transmitter and a receiver. The transmitter combines N data signals received from an encoded bit stream to generate N symbols; maps the N symbols to subcarriers that are spaced more than a coherent bandwidth apart; and receives and moves the N symbols, which are mapped to the subcarriers that are spaced more than a coherent bandwidth apart, to their own positions. The receiver demodulates N pieces of data using the N symbols received from the transmitter in a manner similar to that used by the transmitter.

摘要翻译： 提供发射机和接收机。 发射机组合从编码比特流接收的N个数据信号以产生N个符号; 将N个符号映射到间隔多于相干带宽的子载波; 并且将N个符号映射到彼此间隔多于一个相干带宽的子载波并移动到它们自己的位置。 接收机以与发射机使用的方式类似的方式使用从发射机接收的N个符号来解调N个数据。

公开(公告)号：US20110116516A1

公开(公告)日：2011-05-19

申请号：US13014246

申请日：2011-01-26

申请人： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

发明人： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

IPC分类号： H04J1/02 ,  H04L27/06 ,  H04L27/28

CPC分类号： H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

摘要： Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern.The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment.In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

公开(公告)号：US20110116411A1

公开(公告)日：2011-05-19

申请号：US13014213

申请日：2011-01-26

申请人： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

发明人： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

IPC分类号： H04W72/04 ,  H04L12/26

CPC分类号： H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

摘要： Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern.The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment.In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

摘要翻译： 提供了一种生成能够执行自适应信道估计的导频模式的方法，以及基站的方法和装置以及使用导频模式的终端的方法和装置。 导频模式基于从先前的正交频分多址（OFDMA）符号的导频到频域和时域中的当前OFDMA符号的子载波位置的距离来选择导频符号位置，从而维持低导频密度 为了有效地发送数据，即使在恶劣的信道环境中也可以获得稳定的信道估计性能。 另外，根据基站和终端之间的信道环境确定最小突发分配大小，保证适合信道环境的信道估计性能，提高粒度，信道估计延迟和信道估计存储器大小。