公开(公告)号：US09118531B2

公开(公告)日：2015-08-25

申请号：US13533827

申请日：2012-06-26

申请人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

发明人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

IPC分类号： H04L27/26 ,  H04J13/00 ,  H04J13/14 ,  H04L5/02 ,  H04J13/22

CPC分类号： H04L27/261 ,  H04J13/0062 ,  H04J13/14 ,  H04J13/22 ,  H04L5/023

摘要： A method of generating random access preambles includes receiving information on a source logical index and generating random access preambles in the order of increasing cyclic shift from root ZC sequences with the consecutive logical indexes from the beginning of the source logical index until a predetermined number of the random access preambles are found, wherein the consecutive logical indexes are mapped to root indexes of the root ZC sequences.

摘要翻译： 一种生成随机接入前导码的方法包括：接收关于源逻辑索引的信息，并按照从源逻辑索引开始的根ZC序列增加循环移位的顺序生成随机接入前同步码，直到预定数目的 发现随机接入前导码，其中连续的逻辑索引被映射到根ZC序列的根索引。

公开(公告)号：US08374281B2

公开(公告)日：2013-02-12

申请号：US13286147

申请日：2011-10-31

申请人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

发明人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC分类号： H04L27/04

CPC分类号： H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

摘要： A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)—applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

摘要翻译： 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离，根据计算出的距离计算每组的循环移位数，并建立循环移位（CS）应用间隔 。 这种方法通过考虑接收（Rx）序列的信道响应和该接收（Rx）序列的别名位置而容易地在没有重叠的特定位置建立循环移位（CS）间隔，尽管接收（Rx）信号是 移动了信道延迟扩展或传播延迟，而与生成序列的域的类别无关，从而可以大大减少检测误差和误报率。 并且，如果将循环移位（CS）的序列分配给具有大于预定电平的频率偏移的小区，则本发明可以最小化频率偏移对高移动性小区的影响。

公开(公告)号：US08234325B2

公开(公告)日：2012-07-31

申请号：US12050023

申请日：2008-03-17

申请人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

发明人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

IPC分类号： G06F17/10 ,  G06F17/15

CPC分类号： H04L27/261 ,  H04J13/0062 ,  H04J13/14 ,  H04J13/22 ,  H04L5/023

摘要： A method of generating random access preambles includes receiving information on a source logical index and generating random access preambles in the order of increasing cyclic shift from root ZC sequences with the consecutive logical indexes from the beginning of the source logical index until a predetermined number of the random access preambles are found, wherein the consecutive logical indexes are mapped to root indexes of the root ZC sequences.

摘要翻译： 一种生成随机接入前导码的方法包括：接收关于源逻辑索引的信息，并按照从源逻辑索引开始的根ZC序列增加循环移位的顺序生成随机接入前同步码，直到预定数目的 发现随机接入前导码，其中连续的逻辑索引被映射到根ZC序列的根索引。

公开(公告)号：US20110013715A1

公开(公告)日：2011-01-20

申请号：US12840230

申请日：2010-07-20

申请人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

发明人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC分类号： H04B15/00

CPC分类号： H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

摘要： A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

摘要翻译： 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离，根据计算出的距离计算每组的循环移位数，并建立循环移位（CS）应用间隔 。 这种方法通过考虑接收（Rx）序列的信道响应和该接收（Rx）序列的别名位置而容易地在没有重叠的特定位置建立循环移位（CS）间隔，尽管接收（Rx）信号是 移动了信道延迟扩展或传播延迟，而与生成序列的域的类别无关，从而可以大大减少检测误差和误报率。 并且，如果将循环移位（CS）的序列分配给具有大于预定电平的频率偏移的小区，则本发明可以最小化频率偏移对高移动性小区的影响。

公开(公告)号：US08611297B2

公开(公告)日：2013-12-17

申请号：US13340447

申请日：2011-12-29

申请人： Min Seok Noh ,  Yeong Hyeon Kwon ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Sung Ho Moon ,  Seung Hee Han ,  Hyun Woo Lee ,  Dragan Vujcic

发明人： Min Seok Noh ,  Yeong Hyeon Kwon ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Sung Ho Moon ,  Seung Hee Han ,  Hyun Woo Lee ,  Dragan Vujcic

IPC分类号： H04W4/00

CPC分类号： H04W74/0833 ,  H04L1/1887 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/12 ,  H04W74/006 ,  H04W74/08

摘要： A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.

摘要翻译： 基站响应于用户设备的随机接入请求（随机接入前导码）发送随机接入响应。 随机接入响应包括关于发送随机接入请求的时间和随机接入请求（随机接入前导码）的序列号信息的信息。 用户设备使用关于发送随机接入请求的时间的信息和包括在接收到的随机接入响应中的序列号信息来检查所接收的随机接入响应是否是由用户设备发送的随机接入请求的响应。

公开(公告)号：US08295266B2

公开(公告)日：2012-10-23

申请号：US12447410

申请日：2007-10-25

申请人： Yeong Hyeon Kwon ,  Seung Hee Han ,  Hyun Woo Lee ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Min Seok Noh ,  Dragan Vujcic

发明人： Yeong Hyeon Kwon ,  Seung Hee Han ,  Hyun Woo Lee ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Min Seok Noh ,  Dragan Vujcic

IPC分类号： H04J3/06

CPC分类号： H04L1/08 ,  H04J13/0059 ,  H04J13/16 ,  H04L1/0007 ,  H04L27/2613 ,  H04W56/0035 ,  H04W74/0866

摘要： A method for establishing RACH transmission to prepare against the frequency offset is disclosed. The method reduces the length of the RACH preamble even if the frequency offset exists, allows the RACH preamble to include a repeated structure (also called an iterative structure) or to use a specific sequence with less affect on the frequency offset, so that the Node-B can easily detect the RACH preamble. If different conditions are established in a high-speed UE and a low-speed UE, an amount of system overheads can be reduced as compared to another case in which an overall RACH condition has been prescribed for only the high-speed UE irrespective of the low-speed UE. And, the method determines whether the user equipment (UE) can estimate its speed according to the aforementioned RACH setup condition, and prescribes a detailed RACH access method according to the determined result.

摘要翻译： 公开了一种用于建立RACH传输以准备抵消频偏的方法。 该方法即使存在频率偏移也减少了RACH前导码的长度，允许RACH前导码包括重复的结构（也称为迭代结构），或者使用对频率偏移影响较小的特定序列，使得节点 -B可以很容易地检测到RACH前导码。 如果在高速UE和低速UE中建立不同的条件，则与仅对高速UE规定了总体RACH条件的情况相比，可以减少系统开销的数量，而不管 低速UE。 并且，该方法确定用户设备（UE）是否可以根据上述RACH建立条件来估计其速度，并且根据确定的结果规定详细的RACH接入方法。

公开(公告)号：US20120140844A1

公开(公告)日：2012-06-07

申请号：US13369172

申请日：2012-02-08

申请人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

发明人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC分类号： H04L27/00 ,  H04B7/24 ,  H03K9/00

CPC分类号： H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

摘要： A method for transmitting a random access preamble to a base station at a user equipment (UE) includes generating the random access preamble from a Zadoff-Chu sequence having a length ‘N’ and a root index ‘M’, wherein the random access preamble is defined by a cyclic shift of the Zadoff-Chu sequence and transmitting the generated random access preamble to the base station via a random access channel, wherein the cyclic shift is given by using a variable corresponding to a Doppler shift of one subcarrier spacing, the variable given by using the root index ‘M’, and wherein the cyclic shift is differently given based on whether the variable is smaller than ⅓ of the length ‘N’.

摘要翻译： 一种在用户设备（UE）向基站发送随机接入前导码的方法包括：从具有长度'N'和根索引'M'的Zadoff-Chu序列生成随机接入前同步码，其中随机接入前导码 由Zadoff-Chu序列的循环移位定义，并且经由随机接入信道将生成的随机接入前导码发送到基站，其中通过使用与一个子载波间隔的多普勒频移相对应的变量来给出循环移位， 通过使用根索引'M'给出的变量，并且其中循环移位根据变量是否小于长度'N'的1/3来不同地给出。

公开(公告)号：US08144805B2

公开(公告)日：2012-03-27

申请号：US12840230

申请日：2010-07-20

申请人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

发明人： Hyun Woo Lee ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Dragan Vujcic

IPC分类号： H04L27/04

CPC分类号： H04L1/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657 ,  H04W56/00

摘要： A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

摘要翻译： 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离，根据计算出的距离计算每组的循环移位数，并建立循环移位（CS）应用间隔 。 这种方法通过考虑接收（Rx）序列的信道响应和该接收（Rx）序列的别名位置而容易地在没有重叠的特定位置建立循环移位（CS）间隔，尽管接收（Rx）信号是 移动了信道延迟扩展或传播延迟，而与生成序列的域的类别无关，从而可以大大减少检测误差和误报率。 并且，如果将循环移位（CS）的序列分配给具有大于预定电平的频率偏移的小区，则本发明可以最小化频率偏移对高移动性小区的影响。

公开(公告)号：US20090067540A1

公开(公告)日：2009-03-12

申请号：US12188116

申请日：2008-08-07

申请人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

发明人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Dragan Vujcic ,  Dong Cheol Kim ,  Yeong Hyeon Kwon

IPC分类号： H04L25/03

CPC分类号： H04W74/004 ,  H04W74/0833 ,  H04W74/0866

摘要： A wireless communication system is disclosed. A method for constructing a RACH preamble according to a cell radius of a base station (BS) irrespective of a guard time (GT) and a method for allocating the RACH preamble are disclosed. A method for constructing a preamble of a random access channel (RACH) includes acquiring time-length information of a predetermined cyclic prefix (CP) for each cell radius of a base station (BS), acquiring sequence time-length information of a single sequence or a repeated sequence, and constructing the preamble using the predetermined CP time-length information and the sequence time-length information, irrespective of a time length of a guard time (GT).

摘要翻译： 公开了一种无线通信系统。 公开了一种根据基站（BS）的小区半径来构造RACH前同步码的方法，而不考虑保护时间（GT）以及分配RACH前同步码的方法。 一种用于构建随机接入信道（RACH）的前同步码的方法包括获取基站（BS）的每个小区半径的预定循环前缀（CP）的时间长度信息，获取单个序列的序列时长信息 或重复序列，并且使用预定CP时间长度信息和序列时间长度信息来构造前导码，而与保护时间（GT）的时间长度无关。

公开(公告)号：US08477698B2

公开(公告)日：2013-07-02

申请号：US12451062

申请日：2008-05-01

申请人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Yeong Hyeon Kwon ,  Dragan Vujcic ,  Dong Cheol Kim

发明人： Hyun Woo Lee ,  Seung Hee Han ,  Min Seok Noh ,  Jin Sam Kwak ,  Yeong Hyeon Kwon ,  Dragan Vujcic ,  Dong Cheol Kim

IPC分类号： H04W4/00 ,  H04W72/00

CPC分类号： H04J13/0062 ,  H04J13/10 ,  H04J13/16 ,  H04L27/2613

摘要： A method for selecting a RACH preamble sequence for a high-speed mode and a low-speed mode is disclosed. In the case of acquiring sequence-type information to be used by a specific UE contained in a high-mobility region, a signaling reanalysis method under a general circular shift condition is disclosed, and a method for acquiring sequence-type information via the signaling using the sequence set configured by a restricted circular shift condition is also disclosed. Finally, a method for constructing a sequence set is disclosed.

摘要翻译： 公开了一种用于选择用于高速模式和低速模式的RACH前导序列的方法。 在获取包含在高移动性区域中的特定UE使用的序列类型信息的情况下，公开了一般循环移位条件下的信令再分析方法，以及一种通过信令使用的信令获取序列类型信息的方法 还公开了由受限循环移位条件配置的序列集。 最后，公开了一种用于构建序列集的方法。