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

US08259646B2 Apparatus and method for acquiring frame synchronization and frequency synchronization simultaneously in communication system 失效
标题翻译：在通信系统中同时获取帧同步和频率同步的装置和方法
公开(公告)号：US08259646B2
公开(公告)日：2012-09-04
申请号：US12517432
申请日：2007-12-03
申请人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J3/06
CPC分类号： H04L7/042 , H04L7/046 , H04L27/0014 , H04L2027/003
摘要： An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e. Differential Generalized Post Detection Integration (DGPDI), in which differential information corresponding to a half of a symbol duration length is used within a duration from a frame start symbol to a UW symbol duration in a TDM/TDMA transmission structure in which a low SNR and a high frequency error must be considered, a more reliable frame synchronization estimation value can be acquired in comparison to a conventional frame synchronization scheme in which differential information between single neighbor symbols is used.
摘要翻译：一种用于在通信系统中同时获取可靠的帧同步性能和频率同步的装置和方法包括差分相关器，其输出通过基于具有符号定时同步的输入信号执行差分运算而得到的结果值，以及预定义的发送器发送输入信号，基于差分相关器的结果值和频率补偿控制信号来补偿频率误差的频率误差计算器，以及如果差分相关器的结果值为大于具有至少一个值的阈值集合。通过引入相关方案，即差分广义后检测积分（DGPDI），其中对应于符号持续时间长度的一半的差分信息在TDM / TDMA传输中的帧开始符号到UW符号持续时间的持续时间内被使用必须考虑低SNR和高频误差的结构，与使用单个相邻符号之间的差分信息的常规帧同步方案相比，可以获得更可靠的帧同步估计值。

2. 发明申请

US20100039985A1 APPARATUS AND METHOD FOR ACQUIRING FRAME SYNCHRONIZATION AND FREQUENCY SYNCHRONIZATION SIMULTANEOUSLY IN COMMUNICATION SYSTEM 失效
标题翻译：用于在通信系统中同时获取帧同步和频率同步的装置和方法
公开(公告)号：US20100039985A1
公开(公告)日：2010-02-18
申请号：US12517432
申请日：2007-12-03
申请人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
发明人： Pan-Soo Kim , Dae-Ig Jang , Deock-Gil Oh , Ho-Jin Lee
IPC分类号： H04J3/08
CPC分类号： H04L7/042 , H04L7/046 , H04L27/0014 , H04L2027/003
摘要： An apparatus and method for acquiring reliable frame synchronization performance and frequency synchronization simultaneously in a communication system includes a differential correlator outputting a result value obtained by performing a differential operation based on an input signal having symbol timing synchronization and a value pre-defined with a sender sending the input signal, a frequency error calculator compensating for a frequency error based on the result value of the differential correlator and a frequency compensation control signal, and a frame synchronization determiner outputting the frequency compensation control signal if the result value of the differential correlator is greater than a threshold set having at least one value. By introducing a correlation scheme, i.e. Differential Generalized Post Detection Integration (DGPDI), in which differential information corresponding to a half of a symbol duration length is used within a duration from a frame start symbol to a UW symbol duration in a TDM/TDMA transmission structure in which a low SNR and a high frequency error must be considered, a more reliable frame synchronization estimation value can be acquired in comparison to a conventional frame synchronization scheme in which differential information between single neighbor symbols is used.
摘要翻译：一种用于在通信系统中同时获取可靠的帧同步性能和频率同步的装置和方法包括差分相关器，其输出通过基于具有符号定时同步的输入信号执行差分运算而得到的结果值，以及预定义的发送器发送输入信号，基于差分相关器的结果值和频率补偿控制信号来补偿频率误差的频率误差计算器，以及如果差分相关器的结果值为大于具有至少一个值的阈值集合。通过引入相关方案，即差分广义后检测积分（DGPDI），其中对应于符号持续时间长度的一半的差分信息在TDM / TDMA传输中的帧开始符号到UW符号持续时间的持续时间内被使用必须考虑低SNR和高频误差的结构，与使用单个相邻符号之间的差分信息的常规帧同步方案相比，可以获得更可靠的帧同步估计值。

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