公开(公告)号：KR1020090008136A

公开(公告)日：2009-01-21

申请号：KR1020080068497

申请日：2008-07-15

Applicant: 한국전자통신연구원

Inventor： 안동현 ,  후이준홍 ,  예충일 ,  김영일

IPC: H04L7/02 ,  H04L7/04

CPC classification number: H04L27/2656 ,  H04L27/2678 ,  H04L27/2692

Abstract: A method for synchronizing a frame in an MMR(Mobile Multi-hop Relay) network is provided to transmit the preamble for synchronization to the lower radio station for the preamble reception section without receiving an additional preamble by performing the frame synchronization using a CP(Cycle Prefix) of the frame after securing the frame synchronization by using the preamble of the frame. In the MMR system using the OFDM modulation, a repeater station(RS) queues to the frame start point(S200). The repeater station grasps whether the motive using the preamble is required(S210). If the motive using the preamble is required, the preamble is received and the frame synchronization is modified(S220). The CP is used to receive the OFDM symbols(S230). If the repeater station does not require the synchronization using the preamble, the repeater station transmits the preamble to the lower radio station or queues. The frame synchronization is modified and the OFDM symbols are received by using the CP(S250).

Abstract translation: 提供了一种用于同步MMR（移动多跳中继）网络中的帧的方法，用于将用于同步的前导码发送到用于前导码接收部分的较低无线电站，而不通过使用CP执行帧同步（循环）来接收附加前导码 前缀）通过使用帧的前导码确保帧同步之后的帧。 在使用OFDM调制的MMR系统中，中继站（RS）队列到帧起始点（S200）。 中继站掌握是否需要使用前置码的动机（S210）。 如果需要使用前置码的动机，则接收前同步码并修改帧同步（S220）。 CP用于接收OFDM符号（S230）。 如果中继站不需要使用前置码的同步，则中继站将前导码发送到下级无线电台或队列。 帧同步被修改，并且通过使用CP来接收OFDM符号（S250）。

公开(公告)号：KR1020080081754A

公开(公告)日：2008-09-10

申请号：KR1020070022209

申请日：2007-03-06

Applicant: 한국전자통신연구원

Inventor： 후이준홍 ,  김영일 ,  안동현

IPC: H04W84/04 ,  H04W16/24 ,  H04B7/26

CPC classification number: H04W84/047 ,  H04B7/2612 ,  H04W16/24

Abstract: A method for handover between a non-transparent RS(Relay Station) and a transparent RS in a multi-hop network is provided to shorten a delay time, reduce the frequency of handover, and minimize radio interference by presenting a complementary MS(Mobile Station) handover procedure in an environment where two kinds of RSs exist together. If the access station of an MS has the same preamble/FCH/MAP as a target access station in a multi-hop relay network where a transparent RS sharing a preamble with a BS(Base Station) and a non-transparent RS using a different preamble from the BS exist together, the MS cannot recognize that handover occurs. In this case, RSs and an MR-BS should transparently execute handover from the MS's standpoint. If a path directly connected to the MS from an MR-BS/Anchor BS doesn't exist, a handover procedure using the transparent RS should be applied.

Abstract translation: 提供了一种在多跳网络中的不透明RS（中继站）和透明RS之间进行切换的方法，以缩短延迟时间，减少切换频率，并通过呈现补充MS（移动站）来最小化无线电干扰 ）两种RS存在于一起的环境中的切换过程。 如果MS的接入站在多跳中继网络中具有与目标接入站相同的前导码/ FCH / MAP，其中透明RS与BS（基站）和不透明的RS共享前导码使用不同的 来自BS的前导码一起存在，MS不能识别发生切换。 在这种情况下，RS和MR-BS应该从MS的角度透明地执行切换。 如果不存在从MR-BS / Anchor BS直接连接到MS的路径，则应该使用使用透明RS的切换过程。

公开(公告)号：KR100857904B1

公开(公告)日：2008-09-10

申请号：KR1020060121421

申请日：2006-12-04

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 문영진 ,  김영일

IPC: H04L27/26 ,  H04B7/26 ,  H04L5/22

CPC classification number: H04L27/2655 ,  H04L27/2675 ,  H04L27/2685

Abstract: 본 발명은 이동통신시스템의 상향링크 고속 레인징 처리 장치 및 그 방법에 관한 것이다.
본 발명에 따르면, 상향링크 고속 레인징 처리 장치가 FFT 사이즈의 1/2 포인터 떨어진 위치에 같은 값을 가지는 두 쌍의 레인징 코드를 송신한다. 상향링크 고속 레인징 처리 장치는 수신한 두 쌍의 레인징 코드를 이용하여 상관값을 구한다. 그리고 상관값을 이용하여 시간지연에 해당하는 복수지수 항을 제거하기 위한 복수지수 회전인자 탐색 순서를 결정한다.
따라서, 시간 오차에 해당하는 복수지수 회전인자의 반주기 대칭성을 이용하여 종래의 복수지수 회전인자 탐색 방법에 비해 각 단말기의 시간 오차를 탐색하는 데 걸리는 시간을 줄일 수 있다.
상향링크 고속 레인징, 시간지연, 복수지수 회전인자

公开(公告)号：KR1020080050753A

公开(公告)日：2008-06-10

申请号：KR1020060121421

申请日：2006-12-04

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 문영진 ,  김영일

IPC: H04L27/26 ,  H04B7/26 ,  H04L5/22

CPC classification number: H04L27/2655 ,  H04L27/2675 ,  H04L27/2685 ,  H04L5/22

Abstract: A method and an apparatus for an uplink fast ranging in a mobile communication system are provided to decrease a detection time of a time delay error in respective terminals by using a half periodic symmetry of the time delay error in a base station. An uplink fast ranging apparatus includes a range code generator(110), a ranging code duplicating unit(120), and an IFFT(Inverse Fast Fourier Transform) unit(130). The range code generator generates a ranging code. The ranging code duplicating portion duplicates the ranging code, so that different pointer units are allocated to the ranging codes. The IFFT unit performs an IFFT on the generated ranging code and the duplicated ranging code and outputs a ranging code pair.

Abstract translation: 提供一种用于移动通信系统中的上行链路快速测距的方法和装置，通过使用基站中的时间延迟误差的半周期对称来减少各个终端中的时间延迟误差的检测时间。 上行链路快速测距装置包括范围码发生器（110），测距码复制单元（120）和IFFT（快速傅里叶逆变换）单元（130）。 范围代码生成器生成测距代码。 测距码复制部分复制测距码，使得不同的指针单位被分配给测距码。 IFFT单元对所生成的测距码和复制的测距码进行IFFT，并输出测距码对。

公开(公告)号：KR100779107B1

公开(公告)日：2007-11-27

申请号：KR1020060125027

申请日：2006-12-08

Applicant: 한국전자통신연구원

Inventor： 김현재 ,  김영일

IPC: H04L7/00 ,  H04B7/15 ,  H04L12/26

CPC classification number: H04W56/002 ,  H04B7/2606 ,  H04W16/26 ,  H04W24/10 ,  H04W92/18

Abstract: An apparatus and a method for determining a timing of initial ranging of a terminal are provided to prevent interference in a ranging procedure of other terminal by measuring a power value and timing value for periodic ranging of adjacent terminals. A target terminal ascertaining part(301) is disposed adjacent in a system such as a first terminal attempting initial ranging, and attempts the other ranging, except for the initial ranging. A timing measuring part(302) measures a timing of the other ranging which is attempted by the second terminal. A timing determining part(303) determines a timing of the other ranging based on the measured timing.

Abstract translation: 提供一种用于确定终端的初始测距定时的装置和方法，以通过测量相邻终端的周期性测距的功率值和定时值来防止其他终端的测距过程中的干扰。 目标终端确定部（301）被设置在诸如尝试初始测距的第一终端的系统中，并尝试除了初始测距之外的另一测距。 定时测量部件（302）测量第二终端尝试的其他测距的定时。 定时确定部分（303）基于测量的定时确定另一测距的定时。

公开(公告)号：KR1020070061748A

公开(公告)日：2007-06-14

申请号：KR1020060123649

申请日：2006-12-07

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

Inventor： 박남진 ,  김영일

IPC: H04B1/7097

CPC classification number: H04B1/7103 ,  H04B1/7075 ,  H04B1/7107 ,  H04L25/0204

Abstract: A method for estimating a channel using a multi-interference noise removing function and a receiving apparatus are provided to increase a cell radius managed by a base station, improve accuracy of power control and handoff time point and transmission/reception performance. An LPF(Low Pass Filter)(220) detects a baseband signal from a base station signal. The first to the Kth detectors(230,240,250) estimate a channel parameter from the baseband signal, and calculate a channel estimation signal by using the channel parameter. A selector(330) selects the channel estimation signal in the reception power order to generate one or more pilot channel signals. PN(Pseudo-Noise) code re-spreading units(340k,350,360) re-spread the pilot channel signals to reproduce baseband signals of the pilot channel signals. A subtracting unit(320) subtracts the reproduced baseband signals of the pilot channel signals from the baseband signal detected by the LPF(220) to generate a new signal without the pilot channel signal.

Abstract translation: 提供了一种使用多干扰噪声去除功能估计信道的方法和接收装置，以增加由基站管理的小区半径，提高功率控制精度和切换时间点以及发射/接收性能。 LPF（低通滤波器）（220）从基站信号检测基带信号。 第一到第K个检测器（230,240,250）从基带信号估计信道参数，并且使用信道参数来计算信道估计信号。 选择器（330）以接收功率次序选择信道估计信号以产生一个或多个导频信道信号。 PN（伪噪声）码重新扩展单元（340k，350,360）重新扩展导频信道信号以再现导频信道信号的基带信号。 减法单元（320）从由LPF（220）检测的基带信号中减去导频信道信号的再生基带信号，生成没有导频信号信号的新信号。

公开(公告)号：KR1020070060456A

公开(公告)日：2007-06-13

申请号：KR1020050119879

申请日：2005-12-08

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

Inventor： 조승권 ,  이석진 ,  김영일

IPC: G06F11/16

Abstract: A method for setting a link and detecting a failure by using an LVDS SERDES is provided to check PLL(Phase Locked Loop) lock of serializers of both ends of an initial link, initialize the link to a data transceiving state, and detect a link failure in the link using the LVDS SERDES by checking signal integrity without changing a test mode while transceiving frame data having a finite length. If link setting is started, a sync pattern transmitting state is kept for 100ms by controlling the SERDES after setting a link setting failure state as a current state(810). It is checked whether a PLL is locked or not by checking a state of the SERDES after 100ms(890). If abnormality is checked, checkup is repeated after keeping the sync pattern transmitting state for 10ms. If the PLL is locked, a loop back test count is initialized, the count is increased after continuously transmitting the same loop back pattern for 150 words, and it is checked whether all loop back patterns are returned(850). If all loop back pattern is returned, the link setting state is set as a success state(860).

Abstract translation: 提供一种通过使用LVDS SERDES设置链路和检测故障的方法，用于检查初始链路两端的串行器的PLL（锁相环）锁定，将链路初始化为数据收发状态，并检测链路故障 在使用LVDS SERDES的链接中，通过检查信号完整性，而不改变测试模式，同时收发具有有限长度的帧数据。 如果链路设置开始，则在将链路设置失败状态设置为当前状态之后，通过控制SERDES来保持同步模式发送状态100ms（810）。 通过在100ms（890）之后检查SERDES的状态来检查PLL是否被锁定。 如果检查异常，则保持同步模式发送状态10ms后重复检查。 如果PLL被锁定，则回送测试计数被初始化，连续发送150个字的循环模式后，增加计数，并且检查是否返回所有循环模式（850）。 如果返回所有循环模式，则将链路设置状态设置为成功状态（860）。

公开(公告)号：KR100684328B1

公开(公告)日：2007-02-16

申请号：KR1020050120848

申请日：2005-12-09

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  주식회사 케이티 ,  에스케이텔레콤 주식회사

Inventor： 조승권 ,  김영일

IPC: H03M9/00 ,  H04L12/40

Abstract: A link apparatus using an LVDS(Low Voltage Differential Signal) is provided to be adapted to transceiving of frame data having a limited length or frame data having a wide width by using the LVDS. A link apparatus using an LVDS includes an upper serial-parallel conversion unit(110), and a lower serial-parallel conversion unit(120). The upper serial-parallel conversion unit(110) includes a first serial conversion unit(111), and a first parallel conversion unit(112). The first serial conversion unit(111) converts first parallel data transmitted from one side into serial data, and outputs the converted data to the other side through a first LVDS signal. The first parallel conversion unit(112) converts first serial data received from the other side through a second LVDS signal into parallel data, and outputs the converted data to the one side. The lower serial-parallel conversion unit(120) includes a second serial conversion unit(121), and a second parallel conversion unit(122). The second serial conversion unit(121) converts second parallel data transmitted from one side into serial data, and outputs the converted data to the other side through a third LVDS signal. The second parallel conversion unit(122) converts second serial data received from the other side through a fourth LVDS signal into parallel data, and outputs the converted data to the one side.

Abstract translation: 提供使用LVDS（低电压差分信号）的链路装置，以适于通过使用LVDS来收发具有有限长度的帧数据或具有宽宽度的帧数据。 使用LVDS的链路装置包括上部串行并行转换单元（110）和下部串行并行转换单元（120）。 上部串并转换单元（110）包括第一串行转换单元（111）和第一并行转换单元（112）。 第一串行转换单元（111）将从一侧传输的第一并行数据转换为串行数据，并且通过第一LVDS信号将转换后的数据输出到另一侧。 第一并行转换单元（112）通过第二LVDS信号将从另一侧接收到的第一串行数据转换为并行数据，并将转换后的数据输出到一侧。 下串并转换单元（120）包括第二串行转换单元（121）和第二并行转换单元（122）。 第二串行转换单元（121）将从一侧传输的第二并行数据转换为串行数据，并且通过第三LVDS信号将转换后的数据输出到另一侧。 第二并行转换单元（122）通过第四LVDS信号将从另一侧接收到的第二串行数据转换为并行数据，并将转换后的数据输出到一侧。

公开(公告)号：KR100684320B1

公开(公告)日：2007-02-16

申请号：KR1020040104462

申请日：2004-12-10

Applicant: 한국전자통신연구원 ,  주식회사 케이티 ,  에스케이브로드밴드주식회사 ,  삼성전자주식회사 ,  주식회사 케이티프리텔 ,  에스케이텔레콤 주식회사

Inventor： 오정훈 ,  문영진 ,  김현재 ,  김영일

IPC: H04L12/28 ,  H04B7/26 ,  H04L1/16

Abstract: 본 발명은, 다수의 가입자가 가입자에 따른 요구에 맞도록 고속 데이터 전송이 가능한 무선인터넷시스템의 MAC계층 구성장치를 제공한다.
본 발명의 하나의 특징에 따른 MAC계층 구성장치는 무선 인터넷 시스템에서 상위 계층과 물리계층 사이의 MAC 계층을 구성하는 장치이다. MAC계층 구성장치는 빠른응답기능, 블록반복기능블록, 시간조정기능블록 및 관리기능블록을 포함한다. 빠른응답기능블록은 상위 계층과 인터페이스되고, 상위 계층으로부터 전달된 제어 메시지에 기초하여 프레임 데이터를 물리계층에서 필요한 정보로 변환시켜 준다. 반복기능블록은 프레임 데이터에 대한 오류 정정 코드의 삽입 및 확인을 수행하며, 송수신된 프레임 데이터에 대해 암호화 및 복호화를 수행한다. 시간조정기능블록은 물리계층과 인터페이스되고, 물리계층과 동기를 맞추어 물리계층이 요구하는 시점에 프레임 데이터와 제어 메시지를 전송한다. 관리기능블록은 상위 계층과 인터페이스되며, 빠른응답기능블록, 반복기능블록 및 시간조정기능블록의 상태를 관찰하고 이상 상태에 대한 정보를 취합하여 상위 계층에 전달한다.
MAC, 무선인터넷, 상향링크, 하향링크

公开(公告)号：KR100668677B1

公开(公告)日：2007-01-12

申请号：KR1020050121334

申请日：2005-12-10

Applicant: 한국전자통신연구원 ,  삼성전자주식회사 ,  에스케이브로드밴드주식회사 ,  에스케이텔레콤 주식회사 ,  주식회사 케이티

Inventor： 이석진 ,  조승권 ,  김영일

IPC: H04B1/40

CPC classification number: H04B1/3883 ,  H04M1/0254

Abstract: A portable mobile communication terminal is provided to easily realize a plurality of hardware suitable for purpose of a user in the portable mobile communication terminal, thereby easily developing a supplementary device interworked with the portable mobile communication terminal, and providing desired supplementary functions to a user without replacing the portable mobile communication terminal. A portable mobile communication terminal(100) comprises the followings: a battery pack(120) including a battery cell(121) for supplying power through a DC(Direct Current) signal path; a terminal main body(110) which is operated by power supplied from the battery cell(121), and provides a supplementary function to a user; and at least one supplementary function module(130) which is electrically connected between the battery pack(120) and the terminal main body(110), and provides the supplementary function to the terminal main body(110) through a communication path connected to the DC signal path.

Abstract translation: 提供便携式移动通信终端，以容易地实现适合便携式移动通信终端中的用户目的的多个硬件，从而容易地开发与便携式移动通信终端相互配合的辅助设备，并且在没有 替换便携式移动通信终端。 一种便携式移动通信终端（100）包括：电池组（120），包括用于通过DC（直流）信号路径供电的电池单元（121） 终端主体（110），其由从电池单元（121）供给的电力进行操作，并向用户提供补充功能; 以及电连接在电池组（120）和端子主体（110）之间的至少一个辅助功能模块（130），并且通过连接到终端主体（110）的连接路径向终端主体（110）提供辅助功能 直流信号路径。