专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07596181B2 Apparatus and method for frequency synchronization in OFDM system 有权
标题翻译： OFDM系统中频率同步的装置和方法
公开(公告)号：US07596181B2
公开(公告)日：2009-09-29
申请号：US11227325
申请日：2005-09-16
申请人： Jin-Weon Chang , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
发明人： Jin-Weon Chang , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
IPC分类号： H04K1/10
CPC分类号： H04L27/2659 , H04L27/2607 , H04L27/2633 , H04L27/266 , H04L27/2678
摘要： A method and apparatus are provided for frequency synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) system, wherein the method includes the steps of transmitting OFDM symbols in such a manner that a data symbol size of a particular OFDM symbol in each frame is set to be smaller than a data symbol size of a typical OFDM symbol within the frame, receiving the OFDM symbols and calculating respectively, correlation coefficients of the particular OFDM symbol based on both a time interval of corresponding data symbols and a time interval of data symbols of the typical OFDM symbol, taking respectively phases of corresponding correlation coefficient calculated from the particular OFDM symbol and estimating a decimal part of a frequency offset, and determining an integer part of the frequency offset corresponding to the decimal part of the frequency offset, thereby estimating an entire frequency offset and acquiring the frequency synchronization.
摘要翻译：提供了一种在正交频分复用（OFDM）系统中进行频率同步的方法和装置，其中该方法包括以下步骤：以每个帧中的特定OFDM符号的数据符号大小被设置为小于帧内的典型OFDM符号的数据符号大小，接收OFDM符号并分别基于相应数据符号的时间间隔和相应数据符号的数据符号的时间间隔分别计算特定OFDM符号的相关系数分别采用从特定OFDM符号计算出的相应相关系数的相位，并估计频率偏移的小数部分，并且确定与频率偏移的小数部分相对应的频率偏移的整数部分，从而估计整个频率偏移和获取频率同步。

2. 再颁专利

USRE43627E1 Apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing 有权
标题翻译：基于正交频分复用在移动通信系统中复用用于广播业务的分组的装置和方法
公开(公告)号：USRE43627E1
公开(公告)日：2012-09-04
申请号：US13113689
申请日：2011-05-23
申请人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Min-Kyeong Kim, legal representative , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
发明人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
IPC分类号： H04J1/00
CPC分类号： H04L5/023
摘要： An apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing (OFDM). The OFDM system has a transmission structure in which one slot includes at least two symbols, and each symbol includes a plurality of subcarriers. Different broadcast service packets received from at least two channels are multiplexed into one slot and a result of the multiplexing is transmitted. Overhead information of the channel packets multiplexed into the one slot is generated and transmitted.
摘要翻译：一种用于在基于正交频分复用（OFDM）的移动通信系统中复用用于广播服务的分组的装置和方法。 OFDM系统具有传输结构，其中一个时隙包括至少两个符号，并且每个符号包括多个子载波。从至少两个信道接收的不同的广播业务分组被复用到一个时隙中，并且发送多路复用的结果。生成并发送复用到一个时隙中的信道分组的开销信息。

3. 发明授权

US08233426B2 Apparatus and method for transmitting and receiving packet data using multiple antennas in a wireless communication system 有权
标题翻译：一种用于在无线通信系统中使用多个天线发送和接收分组数据的设备和方法
公开(公告)号：US08233426B2
公开(公告)日：2012-07-31
申请号：US11579771
申请日：2005-06-23
申请人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Hwan-Joon Kwon , Youn-Sun Kim , Dong-Hee Kim , Cheol Mun
发明人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Hwan-Joon Kwon , Youn-Sun Kim , Dong-Hee Kim , Cheol Mun
IPC分类号： H04B7/185 , H04B7/00 , H04W4/00 , H04W1/00 , H03C7/02
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0632 , H04B7/0634 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/006 , H04L5/0064 , H04L25/0204 , H04W52/262
摘要： An apparatus and method for transmitting and receiving packet data using multiple antennas in a wireless communication system is provided. In a wireless communication, system using multiple antennas, the apparatus and method can efficiently transmit and receive packet data according to channel conditions without a waste of transmission bandwidth.
摘要翻译：提供了一种在无线通信系统中使用多个天线发送和接收分组数据的装置和方法。在使用多个天线的无线通信系统中，该装置和方法可以根据信道条件有效地发送和接收分组数据，而不浪费传输带宽。

4. 发明授权

US07577127B2 Apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing 有权
标题翻译：基于正交频分复用在移动通信系统中复用用于广播业务的分组的装置和方法
公开(公告)号：US07577127B2
公开(公告)日：2009-08-18
申请号：US11143593
申请日：2005-06-03
申请人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
发明人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
IPC分类号： H04J1/00
CPC分类号： H04L5/023
摘要： An apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing (OFDM). The OFDM system has a transmission structure in which one slot includes at least two symbols, and each symbol includes a plurality of subcarriers. Different broadcast service packets received from at least two channels are multiplexed into one slot and a result of the multiplexing is transmitted. Overhead information of the channel packets multiplexed into the one slot is generated and transmitted.
摘要翻译：一种用于在基于正交频分复用（OFDM）的移动通信系统中复用用于广播服务的分组的装置和方法。 OFDM系统具有传输结构，其中一个时隙包括至少两个符号，并且每个符号包括多个子载波。从至少两个信道接收的不同的广播业务分组被复用到一个时隙中，并且发送多路复用的结果。生成并发送复用到一个时隙中的信道分组的开销信息。

5. 发明申请

US20080192683A1 Apparatus and Method for Transmitting and Receiving Packet Data Using Multiple Antennas in a Wireless Communication System 有权
标题翻译：用于在无线通信系统中使用多个天线发射和接收分组数据的设备和方法
公开(公告)号：US20080192683A1
公开(公告)日：2008-08-14
申请号：US11579771
申请日：2005-06-23
申请人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Hwan-Joon Kwon , Youn-Sun Kim , Dong-Hee Kim , Cheol Mun
发明人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Hwan-Joon Kwon , Youn-Sun Kim , Dong-Hee Kim , Cheol Mun
IPC分类号： H04Q7/00
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0632 , H04B7/0634 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/006 , H04L5/0064 , H04L25/0204 , H04W52/262
摘要： An apparatus and method for transmitting and receiving packet data using multiple antennas in a wireless communication system is provided. In a wireless communication, system using multiple antennas, the apparatus and method can efficiently transmit and receive packet data according to channel conditions without a waste of transmission bandwidth.
摘要翻译：提供了一种在无线通信系统中使用多个天线发送和接收分组数据的装置和方法。在使用多个天线的无线通信系统中，该装置和方法可以根据信道条件有效地发送和接收分组数据，而不浪费传输带宽。

6. 发明申请

US20060062317A1 Apparatus and method for frequency synchronization in OFDM system 有权
公开(公告)号：US20060062317A1
公开(公告)日：2006-03-23
申请号：US11227325
申请日：2005-09-16
申请人： Jin-Weon Chang , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
发明人： Jin-Weon Chang , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
IPC分类号： H04K1/10
CPC分类号： H04L27/2659 , H04L27/2607 , H04L27/2633 , H04L27/266 , H04L27/2678
摘要： A method and apparatus are provided for frequency synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) system, wherein the method includes the steps of transmitting OFDM symbols in such a manner that a data symbol size of a particular OFDM symbol in each frame is set to be smaller than a data symbol size of a typical OFDM symbol within the frame, receiving the OFDM symbols and calculating respectively, correlation coefficients of the particular OFDM symbol based on both a time interval of corresponding data symbols and a time interval of data symbols of the typical OFDM symbol, taking respectively phases of corresponding correlation coefficient calculated from the particular OFDM symbol and estimating a decimal part of a frequency offset, and determining an integer part of the frequency offset corresponding to the decimal part of the frequency offset, thereby estimating an entire frequency offset and acquiring the frequency synchronization.

7. 发明申请

US20050271027A1 Apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing 有权
标题翻译：基于正交频分复用在移动通信系统中复用用于广播业务的分组的装置和方法
公开(公告)号：US20050271027A1
公开(公告)日：2005-12-08
申请号：US11143593
申请日：2005-06-03
申请人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
发明人： Dong-Hee Kim , Youn-Sun Kim , Jung-Soo Jung , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Jin-Kyu Han , Hwan-Joon Kwon
IPC分类号： H04L27/26 , H04J1/00 , H04L5/02
CPC分类号： H04L5/023
摘要： An apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing (OFDM). The OFDM system has a transmission structure in which one slot includes at least two symbols, and each symbol includes a plurality of subcarriers. Different broadcast service packets received from at least two channels are multiplexed into one slot and a result of the multiplexing is transmitted. Overhead information of the channel packets multiplexed into the one slot is generated and transmitted.
摘要翻译：一种用于在基于正交频分复用（OFDM）的移动通信系统中复用用于广播服务的分组的装置和方法。 OFDM系统具有传输结构，其中一个时隙包括至少两个符号，并且每个符号包括多个子载波。从至少两个信道接收的不同的广播业务分组被复用到一个时隙中，并且发送多路复用的结果。生成并发送复用到一个时隙中的信道分组的开销信息。

8. 发明申请

US20050270969A1 Apparatus and method for providing a broadcasting service in a mobile communication system 审中-公开
标题翻译：一种用于在移动通信系统中提供广播服务的装置和方法
公开(公告)号：US20050270969A1
公开(公告)日：2005-12-08
申请号：US11113326
申请日：2005-04-25
申请人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim
发明人： Jin-Kyu Han , Dae-Gyun Kim , Jin-Weon Chang , Beom-Sik Bae , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim
IPC分类号： H04L27/26 , H04B7/26 , H04J11/00 , H04L5/02
CPC分类号： H04B7/2621 , H04L5/023 , H04L27/2607 , H04L27/261
摘要： An apparatus and method for providing a broadcasting service in a mobile communication system. The apparatus and method can transmit broadcasting service data using orthogonal frequency division multiplexing (OFDM) symbols in the mobile communication system. Broadcasting service data is encoded and modulated. The modulated data is demultiplexed into data streams corresponding to a number of orthogonal frequency subcarriers. The data streams are transformed using Fast Fourier Transform (FFT). The transformed data streams are multiplexed using OFDM. Information with a predetermined length placed in a last part of OFDM data is copied. The copied information is added as a cyclic prefix (CP) to a head part of the OFDM data, and OFDM symbols to be transmitted are generated. The generated OFDM symbols are multiplexed into a forward channel of the mobile communication system, and the multiplexed OFDM symbols are transmitted.
摘要翻译：一种在移动通信系统中提供广播服务的装置和方法。该装置和方法可以在移动通信系统中使用正交频分复用（OFDM）符号发送广播业务数据。广播服务数据被编码和调制。调制数据被解复用为与多个正交频率子载波相对应的数据流。数据流使用快速傅里叶变换（FFT）进行变换。经变换的数据流使用OFDM复用。放置在OFDM数据的最后部分中的预定长度的信息被复制。复制的信息作为循环前缀（CP）添加到OFDM数据的头部，并且生成要发送的OFDM符号。所生成的OFDM符号被复用到移动通信系统的前向信道中，并且发送多路复用的OFDM符号。

9. 发明授权

US07954032B2 Apparatus and method for transmitting/receiving broadcast data in a mobile communication system 有权
公开(公告)号：US07954032B2
公开(公告)日：2011-05-31
申请号：US11454920
申请日：2006-06-19
申请人： Yu-Chul Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
发明人： Yu-Chul Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
IPC分类号： H04L1/18
CPC分类号： H04L27/2607 , H04L1/0003 , H04L1/1819
摘要： A method and apparatus for transmitting a broadcast physical layer packet in a mobile communication system supporting multi-slot transmission and hybrid Automatic Repeat Request (H-ARQ) are provided. The method comprises initially transmitting the broadcast physical layer packet according to a fixed transmission format for at least one first slot interval and retransmitting the broadcast physical layer packet for at least one second slot interval using a variable transmission format different from the transmission format used in the first slot interval.

10. 发明申请

US20100223521A1 Apparatus and method for transmitting/receiving broadcast data in a mobile communication system 有权
标题翻译：用于在移动通信系统中发送/接收广播数据的装置和方法
公开(公告)号：US20100223521A1
公开(公告)日：2010-09-02
申请号：US12662951
申请日：2010-05-13
申请人： Yu-Chul Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
发明人： Yu-Chul Kim , Hwan-Joon Kwon , Dong-Hee Kim , Youn-Sun Kim , Jin-Kyu Han
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L27/2607 , H04L1/0003 , H04L1/1819
摘要： A method and apparatus for transmitting a broadcast physical layer packet in a mobile communication system supporting multi-slot transmission and hybrid Automatic Repeat Request (H-ARQ) are provided. The method comprises initially transmitting the broadcast physical layer packet according to a fixed transmission format for at least one first slot interval and retransmitting the broadcast physical layer packet for at least one second slot interval using a variable transmission format different from the transmission format used in the first slot interval.
摘要翻译：提供一种用于在支持多时隙传输和混合自动重传请求（H-ARQ）的移动通信系统中发送广播物理层分组的方法和装置。该方法包括：根据至少一个第一时隙间隔的固定传输格式，首先发射广播物理层分组，并使用不同于传输格式中使用的传输格式的至少一个第二时隙间隔重传广播物理层分组第一时隙间隔。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式