公开(公告)号：US08755464B2

公开(公告)日：2014-06-17

申请号：US13371326

申请日：2012-02-10

申请人： Si-Hyun Park ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Si-Hyun Park ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03K9/00

CPC分类号： H04L27/265 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0256

摘要： A method and apparatus for performing channel estimation in a wireless communication system, in which a channel estimate of each pilot tone included in adjacent first and second resource allocation blocks is calculated. Channel estimates of first pilot tones are detected, which have a predetermined subcarrier spacing or less from the second resource allocation block, channel estimates of second pilot tones are detected; and which have a predetermined subcarrier spacing or less from the first resource allocation block. The channel estimates of the first and second pilot tones are updated, and channel estimation is then performed using the updated channel estimates.

摘要翻译： 一种用于在无线通信系统中执行信道估计的方法和装置，其中计算包括在相邻第一和第二资源分配块中的每个导频音调的信道估计。 检测到与第二资源分配块具有预定子载波间隔的第一导频音的信道估计，检测到第二导频音的信道估计; 并且与第一资源分配块具有预定的子载波间隔或更小。 更新第一和第二导频音调的信道估计，然后使用更新的信道估计来执行信道估计。

公开(公告)号：US08750277B2

公开(公告)日：2014-06-10

申请号：US12545317

申请日：2009-08-21

申请人： Sang-Heon Kim ,  Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho ,  Si-Hyun Park

发明人： Sang-Heon Kim ,  Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho ,  Si-Hyun Park

IPC分类号： H04B7/216 ,  H04W4/00

CPC分类号： H04W72/042 ,  H04B7/0645 ,  H04B7/0689 ,  H04L1/0026 ,  H04L1/0036 ,  H04L27/12 ,  H04W28/0252 ,  H04W28/06

摘要： An apparatus and method for operating a fast feedback channel in a broadband wireless communication system are provided. The method includes generating and transmitting a feedback signal through a fast feedback channel of a first mode, determining to switch a mode of the fast feedback channel from the first mode to a second mode, transmitting a signal for requesting the mode switching of the fast feedback channel through the fast feedback channel, and generating and transmitting a feedback signal through a fast feedback channel of the second mode.

摘要翻译： 提供了一种用于在宽带无线通信系统中操作快速反馈信道的装置和方法。 该方法包括通过第一模式的快速反馈信道产生和发送反馈信号，确定将快速反馈信道的模式从第一模式切换到第二模式，发送用于请求快速反馈的模式切换的信号 通过快速反馈信道，以及通过第二模式的快速反馈信道产生和发送反馈信号。

公开(公告)号：US08429509B2

公开(公告)日：2013-04-23

申请号：US13004574

申请日：2011-01-11

申请人： Min-Ho Jang ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Min-Ho Jang ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H03M13/00

CPC分类号： H04L1/005 ,  H03M13/3738 ,  H03M13/413 ,  H03M13/4138 ,  H03M13/6544 ,  H04L1/0045 ,  H04L1/0066

摘要： A method and apparatus for determining the reliability of decoded data in a communication system. The method includes calculating a total sum of absolute values corresponding to Log Likelihood Ratio (LLR) values of received data, generating a first value obtained by multiplying the total sum of the absolute values by a predetermined threshold value, performing iterative decoding with respect to the LLR values of the received data, generating a survived path metric value having a maximum value among all path metric values as a decoded result and generating decoded data, comparing the first value with the survived path metric value, and determining whether the decoded data has suitable reliability according to the compared result.

摘要翻译： 一种用于确定通信系统中解码数据的可靠性的方法和装置。 该方法包括：计算对应于接收数据的对数似然比（LLR）值的绝对值的总和，生成通过将绝对值的总和乘以预定阈值而获得的第一值，执行相对于 将所接收的数据的LLR值生成作为解码结果的所有路径量度值中具有最大值的幸存路径量度值，并生成解码数据，将所述第一值与所述存活路径量度值进行比较，以及确定所解码的数据是否具有适当的 可靠性根据比较结果。

公开(公告)号：US08345566B2

公开(公告)日：2013-01-01

申请号：US12540655

申请日：2009-08-13

申请人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho ,  Sang-Heon Kim

发明人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho ,  Sang-Heon Kim

IPC分类号： H04J1/16

CPC分类号： H04W72/04 ,  H04L1/0028 ,  H04L5/0007 ,  H04L5/0017 ,  H04L5/0042 ,  H04L5/0057 ,  H04L5/0064 ,  H04L27/2626 ,  H04L27/2647

摘要： An apparatus and method for transmitting and receiving information through a fast feedback channel in a broadband wireless communications system are provided. The apparatus includes a generator for generating a quasi-orthogonal signal stream corresponding to a codeword to be fed back, a plurality of mappers for mapping the quasi-orthogonal signal stream to a plurality of bundles in the fast feedback channel by using different mapping patterns, and a transmitter for transmitting the quasi-orthogonal signal stream mapped to the plurality of bundles.

摘要翻译： 提供了一种通过宽带无线通信系统中的快速反馈信道发送和接收信息的装置和方法。 该装置包括用于产生与要反馈的码字相对应的准正交信号流的发生器，用于通过使用不同映射模式将准正交信号流映射到快速反馈信道中的多个束的多个映射器， 以及用于发送映射到所述多个束的准正交信号流的发射机。

公开(公告)号：US20120207254A1

公开(公告)日：2012-08-16

申请号：US13397257

申请日：2012-02-15

申请人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

发明人： Si-Hyun Park ,  Yon-Woo Yoon ,  Hwa-Sun You ,  Hee-Won Kang

IPC分类号： H04L27/06

CPC分类号： H04L25/022 ,  H04L25/0224 ,  H04L25/0256 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2695

摘要： A channel estimation method of a channel estimation apparatus in a wireless communication system is provided. The method includes predefining a plurality of weight tables about at least one of a speed and a Carrier to Interference-and-Noise Ratio (CINR) using a correlation value considering offset compensation; selecting a weight table to be used for channel estimation based on at least one of the estimated speed and the CINR, from the plurality of weight tables; and multiplying a pilot channel estimation value and the selected weight table, and performing data channel estimation.

摘要翻译： 提供了一种无线通信系统中的信道估计装置的信道估计方法。 该方法包括使用考虑偏移补偿的相关值预定义关于速度和载波与干扰和噪声比（CINR）中的至少一个的多个权重表; 基于所述估计速度和所述CINR中的至少一个从所述多个权重表中选择要用于信道估计的权重表; 并且将导频信道估计值与所选择的权重表相乘，并执行数据信道估计。

公开(公告)号：US20120155405A1

公开(公告)日：2012-06-21

申请号：US13331642

申请日：2011-12-20

申请人： Hwa-Sun You ,  Yon-Woo Yoon

发明人： Hwa-Sun You ,  Yon-Woo Yoon

IPC分类号： H04W74/08

CPC分类号： H04W74/0833

摘要： An apparatus and a method for receiving a random access signal in a base station of a wireless communication system are provided. The apparatus for receiving the signal includes a control signal extractor for extracting the random access signal from a signal received via an antenna, at least one sequence generator for generating at least one sequence by multiplying the random access signal by at least one candidate sequence, a sequence selector for selecting at least one sequence to detect by differentially correlating sequence components at an adjacent subcarrier location with respect to each sequence, and a detector for detecting the at least one selected sequence.

摘要翻译： 提供了一种用于在无线通信系统的基站中接收随机接入信号的装置和方法。 用于接收信号的装置包括：控制信号提取器，用于从经由天线接收的信号中提取随机接入信号;至少一个序列发生器，用于通过将随机接入信号乘以至少一个候选序列来产生至少一个序列; 序列选择器，用于选择至少一个序列以通过相对于每个序列在相邻子载波位置处的差分相关序列分量进行检测;以及检测器，用于检测所述至少一个选择的序列。

公开(公告)号：US20100189040A1

公开(公告)日：2010-07-29

申请号：US12696018

申请日：2010-01-28

申请人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho

发明人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Hee Cho

IPC分类号： H04W40/00 ,  H04B7/208

CPC分类号： H04L27/2602 ,  H04L1/0068 ,  H04L1/0072 ,  H04L1/08 ,  H04L1/1607 ,  H04L1/1812 ,  H04L5/0053

摘要： An apparatus is capable of transmitting information via an uplink control channel in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system. Uplink control information is encoded to obtain a predetermined bit string. A signal sequence corresponding to the predetermined bit string is generated. The signal sequence is cyclic-shifted according to a predetermined rule. The cyclic-shifted signal sequence is controlled according to a subframe length. Therefore, reception performance deterioration of an uplink control channel allocated to an irregular subframe can be minimized.

摘要翻译： 一种装置能够通过正交频分多址（OFDMA）通信系统中的上行链路控制信道发送信息。 上行链路控制信息被编码以获得预定的位串。 产生与预定位串对应的信号序列。 信号序列根据预定的规则循环移位。 根据子帧长度来控制循环移位信号序列。 因此，分配给不规则子帧的上行链路控制信道的接收性能恶化可以最小化。