公开(公告)号：US07623569B2

公开(公告)日：2009-11-24

申请号：US10958485

申请日：2004-10-05

申请人： Jae-Hwan Chang ,  Yun-Sang Park ,  Sang-Hoon Sung ,  Chan-Young Kim

发明人： Jae-Hwan Chang ,  Yun-Sang Park ,  Sang-Hoon Sung ,  Chan-Young Kim

IPC分类号： H04B3/46

CPC分类号： H04L1/206 ,  H04B1/1027 ,  H04B17/345 ,  H04L27/2647

摘要： A method and apparatus for estimating interference and noise power in an orthogonal frequency division multiplexing/orthogonal frequency division multiple access/discrete multi-tone (OFDM/OFDMA/DMT) system is disclosed. A correlator correlates a plurality of sub-carriers with a preset reference sequence on an element-by-element basis and outputs a result of the correlation. A signal noise producer calculates a difference between a correlation value associated with each of the plurality of sub-carriers output from the correlator and a correlation value produced from at least one adjacent sub-carrier and outputs a result of the calculation. An interference and noise power producer produce interference and noise power from the difference between the correlation values calculated by the signal noise producer.

摘要翻译： 公开了一种在正交频分复用/正交频分多址/离散多音（OFDM / OFDMA / DMT）系统中估计干扰和噪声功率的方法和装置。 相关器在逐个元素的基础上将多个子载波与预设的参考序列进行相关，并输出相关的结果。 信号噪声生成器计算与从相关器输出的多个子载波中的每一个相关联的相关值与从至少一个相邻子载波产生的相关值之间的差，并输出计算结果。 干扰和噪声功率发生器根据由信号噪声产生器计算的相关值之间的差产生干扰和噪声功率。

公开(公告)号：US07620020B2

公开(公告)日：2009-11-17

申请号：US11370289

申请日：2006-03-08

申请人： Ae-Ri Lim ,  Yun-Sang Park ,  Kyeong-Tae Do

发明人： Ae-Ri Lim ,  Yun-Sang Park ,  Kyeong-Tae Do

IPC分类号： H04B7/216

CPC分类号： H04W28/20 ,  H04J3/0682 ,  H04J3/1682 ,  H04J13/00 ,  H04W56/00

摘要： Provided is a system and method for performing a ranging process in a communication system. If a Subscriber Station (SS) detects the insufficiency of UpLink (UL) resources for transmission of a Ranging Request (RNG_REQ) message during the ranging process, it transmits a UL resource allocation request message requesting additional allocation of the UL resources to a Base Station (BS) for additional transmission of the RNG_REQ message to cause the BS to additionally allocate the UL resources for the additional transmission of the RNG_REQ message.

摘要翻译： 提供了一种用于在通信系统中执行测距处理的系统和方法。 如果订户站（SS）在测距过程中检测到用于传送测距请求（RNG_REQ）消息的UpLink（UL）资源不足的情况，则它向基站发送请求附加的UL资源分配的UL资源分配请求消息 （BS），用于额外发送RNG_REQ消息，以使BS额外分配用于RNG_REQ消息的附加传输的UL资源。

公开(公告)号：US20080130605A1

公开(公告)日：2008-06-05

申请号：US12018644

申请日：2008-01-23

申请人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Saung-Eun Hong ,  Min-Hoe Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

发明人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Saung-Eun Hong ,  Min-Hoe Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

IPC分类号： H04Q7/24

CPC分类号： H04W48/12 ,  H04L1/0004 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0017 ,  H04L2001/0093 ,  H04L2001/0098

摘要： A method for receiving common control information from a base station to a plurality of subscriber stations in a wireless communication is provided. The common control information includes first information that all of the plurality of subscriber stations commonly receive and second information that the plurality of subscriber stations separately receive according to channel states of the plurality of subscriber stations. The first information is decoded by demodulating and decoding the common control information according to a modulation scheme and a coding scheme corresponding to an MCS (Modulation and Coding Scheme) level applied to the first information in the base station. The second information is decoded by demodulating and decoding the common control information according to a modulation scheme and a coding scheme corresponding to MCS levels applied to the second information in the base station.

摘要翻译： 提供了一种在无线通信中从基站接收公共控制信息到多个用户站的方法。 公共控制信息包括所有多个用户站共同接收的第一信息和多个用户站根据多个用户站的信道状态分别接收的第二信息。 通过根据调制方式和与应用于基站中的第一信息的MCS（调制和编码方案）等级对应的编码方案对公共控制信息进行解调和解码来解码第一信息。 第二信息通过根据调制方案和对应于基站中的第二信息的MCS级别的编码方案对公共控制信息进行解调和解码来解码。

公开(公告)号：US20070147538A1

公开(公告)日：2007-06-28

申请号：US11643340

申请日：2006-12-20

申请人： Yun-Ho Jung ,  Yun-Sang Park ,  Bong-Gee Song ,  Young-Hak Kim ,  Byung-Tae Kang ,  Min-Cheol Park ,  In-Hyoung Kim ,  Hae-Dong Yeon

发明人： Yun-Ho Jung ,  Yun-Sang Park ,  Bong-Gee Song ,  Young-Hak Kim ,  Byung-Tae Kang ,  Min-Cheol Park ,  In-Hyoung Kim ,  Hae-Dong Yeon

IPC分类号： H04L1/02

CPC分类号： H04B7/0845 ,  H04L1/0631 ,  H04L1/0656

摘要： An apparatus and method for canceling an interference signal in a broadband wireless communication system are provided. A receiver of a wireless communication system includes at least two receive antennas for receiving a target signal of a serving base station and interference signals of at least one neighbor base station; a channel estimator for estimating channels of the signals received through the receive antennas; and a detector for detecting the target signal using channel estimation values of the received signals. Accordingly, it is possible to reduce error propagation caused by the incorrect estimation and detection of the interference signal. In addition, time delay for detecting/restoring/removing the interference signal does not occur. Moreover, the increase of additional buffers can be prevented. Consequently, the increase of hardware complexity can be prevented.

摘要翻译： 提供一种用于在宽带无线通信系统中消除干扰信号的装置和方法。 无线通信系统的接收机包括用于接收服务基站的目标信号和至少一个相邻基站的干扰信号的至少两个接收天线; 用于估计通过接收天线接收的信号的信道的信道估计器; 以及检测器，用于使用所接收信号的信道估计值来检测目标信号。 因此，可以减少由误差估计和干扰信号的检测引起的误差传播。 此外，不发生用于检测/恢复/去除干扰信号的时间延迟。 此外，可以防止额外的缓冲器的增加。 因此，可以防止硬件复杂性的增加。

公开(公告)号：US20070009056A1

公开(公告)日：2007-01-11

申请号：US11481032

申请日：2006-07-05

申请人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04K1/10

CPC分类号： H04L27/2607 ,  H04L5/023 ,  H04L27/2634

摘要： A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.

摘要翻译： 一种用于在基于正交频分多址（OFDMA）的宽带无线接入（BWA）通信系统中处理时间窗口以发送信号的方法和装置。 包括在当前符号之前的先前符号中的第一间隔的信号被存储为先前符号间隔的信号。 当前符号包括保护间隔和保护间隔之后的有效符号间隔。 通过将所存储的第一间隔的信号与包含在先前符号之后的当前符号中的第二间隔的信号相叠加来将当前符号加窗。 发送窗口信号。

公开(公告)号：US20060286967A1

公开(公告)日：2006-12-21

申请号：US11452720

申请日：2006-06-14

申请人： Jin-Young Lee ,  Jai-Dong Kim ,  Ju-Young Jung ,  Yun-Sang Park

发明人： Jin-Young Lee ,  Jai-Dong Kim ,  Ju-Young Jung ,  Yun-Sang Park

IPC分类号： H04M1/66

CPC分类号： H04M3/38

摘要： In a communication system, a terminal receives user information while an initial network entry operation is performed. The terminal transfers the received user information to an authentication server and receives an authentication information mapped to the user information required for the authentication from the authentication server. The terminal performs authentication with the authentication server using the received authentication information. Therefore, the terminal and the authentication server can securely share the authentication information, and the authentication server can easily change and manage the authentication information.

摘要翻译： 在通信系统中，终端在执行初始网络进入操作时接收用户信息。 终端将接收到的用户信息传送到认证服务器，并从认证服务器接收映射到认证所需的用户信息的认证信息。 终端使用接收到的认证信息与认证服务器进行认证。 因此，终端和认证服务器可以安全地共享认证信息，认证服务器可以容易地改变和管理认证信息。

公开(公告)号：US20060069836A1

公开(公告)日：2006-03-30

申请号：US11037954

申请日：2005-01-18

申请人： Jin-Won Seo ,  Yun-Sang Park ,  Tae-In Hyon ,  Jae-Dong Kim ,  Jeong-Eun Park ,  Jin-Young Lee ,  Yong Lee

发明人： Jin-Won Seo ,  Yun-Sang Park ,  Tae-In Hyon ,  Jae-Dong Kim ,  Jeong-Eun Park ,  Jin-Young Lee ,  Yong Lee

IPC分类号： G06F13/00

CPC分类号： G06F8/65 ,  H04L61/2015 ,  H04L67/04 ,  H04L67/06 ,  H04L67/34

摘要： Disclosed is a communication system for a software upgrade, including a user terminal (UT) for transmitting an IP address assignment request message containing software information of the UT an upgrade-providing server including upgrade data regarding every software of the UT; and a server for determining whether or not software upgrade of the UT is necessary with reference to the software information when the request message is received, and transmitting an address and upgrade information of the upgrade-providing server to the UT when the software upgrade is necessary.

摘要翻译： 公开了一种用于软件升级的通信系统，包括用于发送包含UT的软件信息的IP地址分配请求消息的用户终端（UT），升级提供服务器包括关于UT的每个软件的升级数据; 以及用于在接收到请求消息时参考软件信息来确定是否需要软件升级的服务器，并且当需要软件升级时将升级提供服务器的地址和升级信息发送到UT 。

公开(公告)号：US20050107036A1

公开(公告)日：2005-05-19

申请号：US10993192

申请日：2004-11-19

申请人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Min-Hee Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

发明人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Min-Hee Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

IPC分类号： H04L1/00 ,  H04W48/12 ,  H04Q7/20

CPC分类号： H04W48/12 ,  H04L1/0004 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0017 ,  H04L2001/0093 ,  H04L2001/0098

摘要： A method for transmitting common control information from a base station to a plurality of subscriber stations in a wireless communication. The common control information includes first information transmitted in common to all of the subscriber stations and second information separately transmitted to the subscriber stations according to channel states of the subscriber stations. The first information is transmitted using an MCS (Modulation and Coding Scheme) level having a modulation scheme with a lowest order and a coding scheme with a lowest coding rate among all MCS levels available in the base station. The second information is transmitted using MCS levels that are adjusted by a predetermined level against MCS levels corresponding to channel states of the subscriber stations.

摘要翻译： 一种用于在无线通信中从基站向多个用户站发送公共控制信息的方法。 公共控制信息包括根据用户站的信道状态共同向所有用户站发送的第一信息和分别发送给用户站的第二信息。 使用具有最低次序的调制方案的MCS（调制和编码方案）级别和在基站中可用的所有MCS级别中具有最低编码率的编码方案来发送第一信息。 使用针对与用户站的信道状态相对应的MCS级别按预定级别调整的MCS级别来发送第二信息。

公开(公告)号：US07813361B2

公开(公告)日：2010-10-12

申请号：US11266514

申请日：2005-11-03

申请人： Kang-Gyu Lee ,  Jae-Hwan Chang ,  Yun-Sang Park ,  Yun-Sung Kim ,  Sa-Jin Kim

发明人： Kang-Gyu Lee ,  Jae-Hwan Chang ,  Yun-Sang Park ,  Yun-Sung Kim ,  Sa-Jin Kim

IPC分类号： H04L12/28

CPC分类号： H04L1/1835 ,  H04L1/1819 ,  H04L1/1845

摘要： Disclosed is a system and method for transmitting and receiving hybrid automatic repeat request (HARQ) buffer capability information in a broadband wireless access communication system. According to the system and method, a mobile station detects its own HARQ buffer capacity, and transmits a message including information about the detected HARQ buffer capability to a base station. The base station receives the message and determines the amount of a transmission signal to be allocated to the mobile station based on the HARQ buffer capability, so that it is possible to operate a HARQ scheme in accordance with the HARQ buffer capability of the mobile station.

摘要翻译： 公开了一种用于在宽带无线接入通信系统中发送和接收混合自动重传请求（HARQ）缓冲器能力信息的系统和方法。 根据该系统和方法，移动站检测其自身的HARQ缓冲器容量，并向基站发送包括检测到的HARQ缓冲能力的信息的消息。 基站接收消息，并基于HARQ缓冲器能力确定要分配给移动台的发送信号的量，从而可以根据移动台的HARQ缓冲能力来操作HARQ方案。

公开(公告)号：US07720175B2

公开(公告)日：2010-05-18

申请号：US11501964

申请日：2006-08-10

申请人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

发明人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC分类号： H04L27/2624

摘要： A Peak-to-Average Power Ratio (PAPR) reduction apparatus and method in an OFDM communication system are provided. In the PAPR reduction method, magnitude and phase components are extracted from transmission sample data. Peaks having magnitude components exceeding a threshold are detected by comparing the extracted magnitude components with the threshold. The highest of the peaks is detected and compared with the threshold. If the highest peak is greater than the threshold, the highest peak is updated.

摘要翻译： 提供了一种OFDM通信系统中的峰值平均功率比（PAPR）降低装置和方法。 在PAPR缩小方法中，从传输样本数据中提取幅度和相位分量。 通过将所提取的幅度分量与阈值进行比较来检测具有超过阈值的幅度分量的峰值。 检测最高峰，并将其与阈值进行比较。 如果最高峰值大于阈值，则更新最高峰。