-
-
公开(公告)号：KR1020100085871A
公开(公告)日：2010-07-29
申请号：KR1020100005162
申请日：2010-01-20
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method and an apparatus for transmitting and receiving data in a wireless communication network are provided to improve the through of an entire system by allocating the resources for data transmission and reception only to the stations of a VHT system in a set protection section. CONSTITUTION: It is informed that a non-VHT-station exists in a wireless communication network(122), and a message indicating that data are supposed to be transmitted to plural VHT-stations is transmitted for the non-VHT-station and a VHT-station which exist in the wireless communication network(124). The resource allocation information for the plural VHT-stations is transmitted(126), and the data are transmitted to the plural VHT-stations according to the resource allocation information(130).
Abstract translation: 目的：提供一种用于在无线通信网络中发送和接收数据的方法和装置，以通过仅将数据发送和接收的资源分配给设置保护部分中的VHT系统的站来改善整个系统的通过。 构成：通知在无线通信网络（122）中存在非VHT站，并且向非VHT站发送指示数据被发送到多个VHT站的消息，并且VHT 存在于无线通信网络（124）中。 发送多个VHT站的资源分配信息（126），并且根据资源分配信息将数据发送到多个VHT站。
-
-
公开(公告)号：KR1020100070751A
公开(公告)日：2010-06-28
申请号：KR1020080129438
申请日：2008-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0212 , H04L25/022 , H04L25/0226 , H04L25/0202
Abstract: PURPOSE: A channel estimating method and an apparatus thereof of a wireless telecommunications system is provided to a channel estimating performance in order to improve. CONSTITUTION: A channel estimating unit(10) estimates a channel value in a frequency domain of a received signal of a certain sub-carrier. An IDFT unit(20) changes the channel value of the frequency domain. The IDFT unit gets the channel value of a time domain. An interference removing unit(30) produces a channel delay value based on an produced interaction factor on a structure of a pilot already known. The interference removing unit eliminates the interference with substrate the produced channel delay values from the channel value of the time domain.
Abstract translation: 目的：提供一种无线电信系统的信道估计方法及其装置，以提高信道估计性能。 构成：信道估计单元（10）估计某个子载波的接收信号的频域中的信道值。 IDFT单元（20）改变频域的信道值。 IDFT单元获取时域的通道值。 干扰去除单元（30）基于在已知的导频的结构上产生的交互因子产生信道延迟值。 干扰去除单元从时域的信道值消除了产生的信道延迟值对基板的干扰。
-
公开(公告)号：KR1020100067579A
公开(公告)日：2010-06-21
申请号：KR1020090025591
申请日：2009-03-25
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2678 , H04L27/265
Abstract: PURPOSE: An apparatus for setting up an FFT start point and a method thereof are provided to implement a receiver which is strong in a frame sync obtainment error by offering proper offset on a reception end towards a CP section. CONSTITUTION: A start point determining part(300) moves an FFT start point in a CP(Cyclic Prefix) direction as much as sample offset according to acquisition result. An FFT(Fast Fourier Transform) part(200) performs FFT by receiving the FFT start point moved by the start point determining part. The start point determining part determines the sample offset with an SNR(signal-to-noise ratio) value.
Abstract translation: 目的：提供一种用于建立FFT起始点的装置及其方法，以通过在朝向CP部分的接收端提供适当的偏移来实现帧同步获取误差强的接收机。 构成：起始点确定部（300）根据采集结果移动CP（循环前缀）方向上的FFT起始点与采样偏移一样多的移动。 FFT（快速傅立叶变换）部分（200）通过接收由起始点确定部分移动的FFT起始点来执行FFT。 起始点确定部分用SNR（信噪比）值来确定采样偏移。
-
Patent Agency Ranking
公开(公告)号：KR1020100064319A
公开(公告)日：2010-06-14
申请号：KR1020090082083
申请日：2009-09-01
Abstract: PURPOSE: Even if MS(Mobile Station) receives a map IE(Information Element) which nibble is not arranged, a map analyzing device and a map analyzing method performs map analyzing method in a nibble unit, thereby securing the consumption time of a physical layer by a reduce of map analyzing time. CONSTITUTION: A delay unit(130) outputs lower three bits among four bits forming one nibble as delay bit by a delay. A combination unit(140) generates a plurality of nibble data comprising four bits by combination of delay bit of a current bit and the delay unit of a memory unit(120). A multiplexing unit(150) outputs one from a plurality of nibble data as nibble array map data. A map analyzing unit(160) analyzes the nibble array map data in a nibble unit.
Abstract translation: 目的：即使MS（Mobile Station）接收到没有配置半字节的映射IE（Information Element），地图分析装置和地图分析方法也进行半字节单位的地图分析方法，从而确保物理层的消耗时间 通过减少地图分析时间。 构成：延迟单元（130）在四位中输出低位三位，形成一个作为延迟位的一个半字节延迟。 组合单元（140）通过组合当前位的延迟位和存储器单元（120）的延迟单元来生成包括四位的多个半字节数据。 复用单元（150）从多个半字节数据中输出一个作为半字节阵列映射数据。 地图分析单元（160）以半字节单元分析半字节阵列地图数据。
-
公开(公告)号：KR1020100061277A
公开(公告)日：2010-06-07
申请号：KR1020090025811
申请日：2009-03-26
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0055 , H04W28/04 , H04W72/04 , H04W72/0413
Abstract: PURPOSE: A method and a device for correcting a transmission point of an uplink packet are provided to minimize the interference among symbols by correcting the transmission point of an uplink packet. CONSTITUTION: A ranging receiver(123) receives a ranging packet. A delay measuring unit(124) confirms the delay time of the ranging packet by comparing the time of the reception of the ranging packet with the base station symbol synchronous signal. A controller(126) sets the correction time of the uplink packet transmission point by checking the delay time. The uplink packet is set to arrive after a first section from the starting point of a cyclic prefix section by the correction fading. The first section is decided in consideration of the maximum transmission speed of the mobile station and the cycle of the cyclic ranging.
Abstract translation: 目的：提供一种用于校正上行链路分组的传输点的方法和设备，以通过校正上行链路分组的传输点来最小化符号之间的干扰。 规定：测距接收机（123）接收测距分组。 延迟测量单元（124）通过将测距分组的接收时间与基站符号同步信号进行比较来确认测距分组的延迟时间。 控制器（126）通过检查延迟时间来设置上行链路分组传输点的校正时间。 上行链路分组被设置为通过校正衰落从循环前缀部分的起始点到达第一部分之后。 考虑到移动台的最大传输速度和循环测距的周期来决定第一部分。
-
公开(公告)号：KR100953568B1
公开(公告)日：2010-04-21
申请号：KR1020070131026
申请日：2007-12-14
Applicant: 한국전자통신연구원
Abstract: TR-MMR 시스템에서 프레임의 하향링크 스케줄링 방법이 개시된다. 프레임의 DAZ 구간의 데이터 버스트 영역에 대한 제어 데이터 및 OTZ 구간의 데이터 버스트 영역에 대한 제어 데이터를 프레임의 MAP에 구성하고, 다음 프레임에서 중계국이 이동국으로 전송할 데이터를 현 프레임을 통해 미리 중계국에 전송함으로써, 중계국을 경유한 정확하고 신속한 데이터 전송이 가능하다.
-
公开(公告)号：KR1020090079402A
公开(公告)日：2009-07-22
申请号：KR1020080005331
申请日：2008-01-17
CPC classification number: H04L1/0656 , H03M13/1105 , H03M13/255 , H04B7/06 , H04B7/08
Abstract: A transmission method using an LDPC(Low Density Parity Check Codes) coder in a multi-antenna system is provided to reduce complexity of a decoding process of a receiver without degrading an error correcting capability by obtaining the same performance as the error correcting capability of a desired decoding rate in the receiver. Inputted data is encoded into an LDPC coding mode including a puncture bit. An encoded LDPC codeword is demultiplexed to a plurality of parallel channels. Each demultiplexed channel is modulated in a V(Vertical)-BLAST(Bell Laboratory Layered Space-Time) mode. A parity bit of the LDPC codeword is separated from the codeword of the LDPC codeword, and is assigned and modulated in a predetermined channel. Modulated signals of each channel are transmitted.
Abstract translation: 提供了一种在多天线系统中使用LDPC（低密度奇偶校验码）编码器的传输方法，以降低接收机的解码处理的复杂度，而不会降低纠错能力，通过获得与 接收机中所需的解码速率。 输入的数据被编码为包括穿孔位的LDPC编码模式。 编码的LDPC码字被解复用到多个并行信道。 每个解复用的信道以V（垂直）-BLAST（贝尔实验室分层时空）模式进行调制。 LDPC码字的奇偶校验位与LDPC码字的码字分离，并在预定的信道中被分配和调制。 发送每个通道的调制信号。
-
公开(公告)号：KR100908244B1
公开(公告)日：2009-07-20
申请号：KR1020070085631
申请日：2007-08-24
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
CPC classification number: H04B7/155 , H04B7/2606 , H04W36/00 , H04W36/165 , H04W84/047 , H04W88/02
Abstract: 핸드오버 제어 기능을 포함한 중계기를 이용한 핸드오버 방법 및 멀티홉 릴레이 시스템이 개시된다. 중계기에 연결된 이동국들의 핸드오버가 필요한 경우, 중계기가 기지국과 핸드오버 요청 메시지/핸드오버 응답 메시지를 교환하여 이동국들의 핸드오버를 협상한 후, 중계기에 의해 이동국들의 핸드오버가 수행되면 중계기는 이동국들의 핸드오버 수행 결과를 취합하여 기지국에 전송하고, 기지국은 핸드오버된 이동국들의 정보를 갱신한다.
Abstract translation: 公开了使用包括切换控制功能的中继器的切换方法和多跳中继系统。 如果需要连接到中继的移动站的切换时，当所述中继器是在基站和一个切换请求消息/切换交换响应消息，然后协商移动站的切换时，由中继所述移动站的越区切换执行移动站的中继 收集切换的结果并将其发送到基站，并且基站更新切换移动台的信息。
-
-
-
-
-
-
-
-
-
Search Results
433
records
(took 0.029 seconds)
