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公开(公告)号：KR1020000027804A
公开(公告)日：2000-05-15
申请号：KR1019980045832
申请日：1998-10-29
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method for scheduling packets of an MC-CDMA(Multi-Code Cord Division Multiple Access) system is provided to improve a performing capacity by performing a scheduling system for packets, through using a property that sub codes do not interfere each other because the sub codes lie at right angles, when many mobile stations in cells want to transmit variable bit rate traffic in the MC-CDMA system. CONSTITUTION: A method for scheduling packets in an MC-CDMA(Multi-Code Cord Division Multiple Access) system which transmits packets by sub codes, after assigning the sub codes which do not interfere each other, to one user to transmit data having a VBR(Variable Bit Rate), comprises the steps of: informing the number of packets accumulated on a user's buffer by the user, when the packets for transmitting to a base station are transmitted to the user's buffer; identifying the number of the accumulated packets; and transmitting all the packets stored in the user's buffer by the sub codes, after the base station allows the transmission of the packets to the user, when the number of the accumulated packets are preset number.
Abstract translation: 目的：提供一种用于调度MC-CDMA（多码线分多址）系统的分组的方法，以通过使用子码不互相干扰的属性来执行分组的调度系统来提高执行能力，因为 子代码是直角的，当小区中的许多移动站想要在MC-CDMA系统中传输可变比特率业务时。 构成：一种在一个用户发送具有VBR的数据的MC-CDMA（多代码线分多址）系统中的分组方法，该MC-CDMA（多码线分多址）系统在分配不相互干扰的子码之后，通过子码发送分组 （可变比特率）包括以下步骤：当用于发送到基站的分组被发送到用户的缓冲器时，通知用户累积在用户缓冲器上的分组的数量; 识别累积数据包的数量; 并且当基站允许向用户发送分组时，当累积分组的数量是预设数量时，通过子代码发送存储在用户缓冲器中的所有分组。
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公开(公告)号：KR1020000024925A
公开(公告)日：2000-05-06
申请号：KR1019980041729
申请日：1998-10-02
Applicant: 한국전자통신연구원
IPC: H04L1/22
CPC classification number: H04L43/0847 , H04L1/0063
Abstract: PURPOSE: A high speed binary transmitting system is to perform a parity check with respect to every code word, thereby providing an improved error monitoring function. CONSTITUTION: A high speed binary transmitting system comprises a transmitting portion(100) which applies a parity of an information data to a bit insertion line code in order to make the data series and outputting to a transmitting line and a receiving portion which receives the transmitted data and checks the parity so as to detecting an error. The transmitting portion is comprised of an adaptive parity generating unit(101) for producing and outputting an uppermost bit of the input data, an even parity and an odd parity, a m+1 bit resistor(102) which adds the parity generated in the adaptive parity generating unit to a m (m is an integral number)bit information data input from the outside so as to produce a code word of m+1bit, a synchronous pattern detector(103) for producing and outputting one or more out of data which does not exist in an assemblage of the code word, a 2: 1 selector(104) which selects one out of the code word and a synchronous pattern according to a control signal input from the outside.
Abstract translation: 目的：高速二进制发送系统对每个码字执行奇偶校验，从而提供改进的误码监测功能。 构成：高速二进制发送系统包括发送部分（100），其将信息数据的奇偶校验应用于比特插入行代码，以便使数据序列并输出到发送线路和接收发送的接收部分的接收部分 数据并检查奇偶校验，以便检测错误。 发送部分包括用于产生和输出输入数据的最高位，偶校验和奇校验的自适应奇偶生成单元（101），m + 1位电阻（102）将在 自适应奇偶校验生成单元，以从外部输入的am（m为整数）比特信息数据，生成m + 1bit的码字;同步码型检测器，用于产生和输出一个或多个数据， 不存在于代码字的组合中，2：1选择器（104）根据从外部输入的控制信号选择代码字中的一个和同步模式。
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3.发明授权멀티 셀의 구조를 가지는 다중 코드 분할 방식 셀룰러 환경에서 전송 품질 보장 및 시스템 용량을 증대시키기 위한 스케쥴링 방법 失效一种提高系统容量并保证多小区多码CDMA环境中服务质量的调度方法
公开(公告)号：KR100573280B1
公开(公告)日：2006-04-24
申请号：KR1019990062417
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B7/26
Abstract: 본 발명은 차세대 이동 통신 시스템에서 단일 셀만을 고려한 WISPER 프로토콜을 바탕으로 각각의 멀티미디어 트래픽의 서비스 품질(QoS, Quality of Service) 특성을 지원하면서 단말국의 위치 정보를 이용하여 무선 구간의 용량을 증대시키고, 성능을 개선하여 멀티 셀 환경인 셀룰러 시스템에 적합하도록 설계된 스케쥴링 방법을 제공하는데 그 목적이 있다.
본 발명에 따르면, 멀티 셀의 구조를 가지는 다중 코드 분할 방식(MC-CDMA, Multicode Code Division Multiple Access) 셀룰러 환경에서 전송 품질 보장 및 시스템 용량을 증대시키기 위한 스케쥴링 방법에 있어서, 우선도 순으로 패킷(packet)을 할당할 때, 할당하려는 슬롯에 동일 영역의 다른 단말국들의 전송 패킷이 얼마나 할당되었는지를 확인하는 제 1 단계; 및 상기 동일 영역 안의 단말국들에 의한 총간섭량이 기설정된 경계값을 넘지 않도록 전송 가능한 패킷수를 결정하는 제 2 단계를 포함하여 이루어진 것을 특징으로 하는 전송 품질 보장 및 시스템 용량을 증대시키기 위한 스케쥴링 방법이 제공된다.-
公开(公告)号：KR100404940B1
公开(公告)日：2003-11-10
申请号：KR1019990033585
申请日：1999-08-16
Applicant: 한국전자통신연구원
IPC: G06F9/44
Abstract: PURPOSE: A graphic user interface unit for constructing an integrated protocol development environment using a formal methods is provided to apply the unit to the development of the protocol related to data communication, by integrating the Object Geode, a specification unit tool for a detailed user request, with a verifier and a suitableness test generator. CONSTITUTION: An X client(1) is comprised of the menus of a file(2), a specification(3), a verification(5), a conformance-test(6) and a help(7). When the file menu(2) is selected, the operations for opening a file, closing the file and terminating the integrated environment are performed via the communication with an X server. If the specification menu(3) is selected, an edited window and a simulated result is displayed on a screen. A result is output onto the screen in response to an intermediate model converter when a menu(4) for converting a specification panel is selected. The test menu(6) enables the communication with a test generator, and then outputs the result of the communication on the screen.
Abstract translation: 目的：提供一种图形用户接口单元，用于使用形式方法构建集成协议开发环境，以将该单元应用于与数据通信相关的协议的开发，其中通过集成对象Geode（用于详细用户请求的指定单元工具） ，有一个验证器和一个合适的测试生成器。 构成：X客户端（1）由文件（2），规范（3），验证（5），一致性测试（6）和帮助（7）的菜单组成。 当选择文件菜单（2）时，通过与X服务器的通信来执行打开文件，关闭文件和终止集成环境的操作。 如果选择规格菜单（3），则在屏幕上显示编辑的窗口和模拟结果。 当选择用于转换指定面板的菜单（4）时，响应于中间模型转换器将结果输出到屏幕上。 测试菜单（6）启用与测试发生器的通信，然后在屏幕上输出通信结果。
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公开(公告)号：KR1020010064262A
公开(公告)日：2001-07-09
申请号：KR1019990062412
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W36/18 , H04W36/026 , H04W36/04 , H04W36/22
Abstract: PURPOSE: A multicast handoff method in a multi-tier cell system is provided to consider a cell number of a lower layer and loads of an upper layer and the lower layer, and to perform a handoff of a specific multicast group service to the upper and the lower layer. Therefore, it is possible to supply services to more users, and to improve channel efficiency. CONSTITUTION: In case that load of an upper layer reaches a specific threshold value, when a lower layer cell number of users included in a specific multicast group is smaller than the threshold value, a handoff is performed in the multicast group as lower layer cells. On the other hand, when loads of the lower layer cells are larger than the specific threshold value, a handoff is performed for the multicast group in the upper layer.
Abstract translation: 目的：提供多层小区系统中的组播切换方法，以考虑较低层的小区号和上层和下层的负载，并执行特定组播组业务到上层和 下层。 因此，可以向更多用户提供服务，并提高渠道效率。 构成：在上层负载达到特定阈值的情况下，当特定组播组中包含的较低层小区的用户数小于阈值时，作为下层小区，在多播组中进行切换。 另一方面，当下层小区的负载大于特定阈值时，对上层的组播组进行切换。
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Patent Agency Ranking
公开(公告)号：KR1020010064260A
公开(公告)日：2001-07-09
申请号：KR1019990062410
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B1/40
CPC classification number: H03F1/3247 , H03F1/3258 , H03F1/3288 , H04B1/16
Abstract: PURPOSE: An adaptation predistorter for compensating nonlinear distortion is provided to compensate nonlinear distortion of a high power amplifier so that a high power amplifier having high efficiency can be enabled, and to classify complex number of input signals through amplitude and phase for compensation so that correct linearity can be obtained. CONSTITUTION: A rectangular-to-polar coordinator conversion unit(201) classifies the amplitude and phase in complex number configured with actual number and imaginary number. An amplitude predistorter(202) receives a coefficient of an amplitude estimation polynomial, for predistortion of the amplitude of an inputted signal. A phase predistorter(203) receives a coefficient of a phase estimation polynomial, for predistortion of the phase of an inputted signal. A polar-to-rectangular coordinator conversion unit(204) classifies complex number configured with amplitude and phase into actual number and imaginary number.
Abstract translation: 目的：提供一种用于补偿非线性失真的适配预失真器，用于补偿大功率放大器的非线性失真，从而可以实现高效率的高功率放大器，并通过幅度和相位对复数个输入信号进行分类以进行补偿，从而正确 可以获得线性。 构成：矩形到极坐标转换单元（201）将配置有实数和虚数的复数的振幅和相位进行分类。 幅度预失真器（202）接收振幅估计多项式的系数，用于预失真输入信号的振幅。 相位预失真器（203）接收相位估计多项式的系数，用于预输入输入信号的相位。 极坐标到矩形协调器转换单元（204）将配置有幅度和相位的复数分为实数和虚数。
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公开(公告)号：KR1019980045945A
公开(公告)日：1998-09-15
申请号：KR1019960064197
申请日：1996-12-11
Applicant: 한국전자통신연구원
IPC: H04L12/24
Abstract: 본 발명은 시험하고자 하는 임의의 상태에 대한 가장 짧은 길이의 단일 입력/출력(UIO) 시퀀스를 생성하기 위한 방법으로서, 종래의 방법은 스텝 1의 시험하고자 하는 상태까지 도달하는 방법에 대한 체계적인 정보를 제공하지 못하며, 스텝 2의 주어진 입력에 대한 출력을 판단하기에 사용하는 UIO 시퀀스의 생성 방법도 다양하며 생성된 UIO 시퀀스의 길이가 길어 시험기간 및 시험비용이 크므로, 상기 문제점을 해결하기 위해 본 발명은 병렬성과 비동기적 속성이 우수한 페트리네트를 이용하여 UIO 시퀀스를 생성함으로 제품에 대한 시험기간 및 시험비용을 줄이고 시험결과를 구현물에 적용하여 제품의 품질을 향상시킨다.
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公开(公告)号：KR100654856B1
公开(公告)日：2006-12-08
申请号：KR1019990062410
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B1/40
Abstract: 본 발명은 차세대 이동 통신 시스템에서 비선형 왜곡 보상을 위한 적응 전치 왜곡 기법을 이용한 전치 왜곡기를 제공하는데 그 목적이 있다.
본 발명에 따르면, 데이터 소스가 병렬 데이터로 변환된 후 각 채널에 할당된 코드로 멀티 코드 확산되고 전송시 심볼간 간섭을 줄이기 위하여 펄스로 변환된 신호를 입력받아, 이 실수부 및 허수부로 이루어진 복소수 입력 신호를 진폭 및 위상으로 구분하는 직각 좌표-극좌표 변환부; 진폭 추정 다항식 계수를 입력받아, 상기 직각 좌표-극좌표 변환부의 출력 신호의 진폭을 전치 왜곡시키는 진폭 전치 왜곡부; 위상 추정 다항식의 계수를 입력받아, 상기 진폭 전치 왜곡부의 출력 신호의 위상을 전치 왜곡시키는 위상 전치 왜곡부; 및 상기 진폭 전치 왜곡부의 출력 신호 및 상기 위상 전치 왜곡부의 출력 신호를 입력받아, 진폭 및 위상으로 이루어진 복소수 신호를 실수부 및 허수부로 구분하는 극좌표-직각 좌표 변환부; 를 포함하여 이루어진 것을 특징으로 하는 적응 전치 왜곡 기법을 이용한 전치 왜곡기가 제공된다.
전치 왜곡기, 쿼드러쳐 복조부, 비선형 왜곡 보상-
公开(公告)号：KR100383672B1
公开(公告)日：2003-05-14
申请号：KR1019990040123
申请日：1999-09-17
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: PURPOSE: A routing device supporting a mutual roaming between a mobile IP(Internet Protocol) and a communication system is provided to basically mount a support function for the mobile IP protocol, and to adopt same routers to each system, so as to support a mobility of a terminal and a mutual roaming between each communication system, and to support a data exchange function of an IP(Internet Protocol) layer. CONSTITUTION: A mobile IP(Internet Protocol) supporting block(102) supports a roaming between a mobile IP and a communication system. FAs(Foreign Agents)(104,107) store register information of a terminal. HAs(Home Agents)(105,108) store an FA internet address of a terminal visiting an other region as a care-of address. A switching block(101) is connected to the IP supporting block(102), the FAs(104,107), and the HAs(105,108), and performs a data exchanging function with an exterior. A wireless communication protocol block(103) is connected with the switching block(101) to support a wireless communication protocol, and is connected with the mobile IP supporting block(102) to support a roaming between communication systems. VLRs(Visitor Location Registers)(106,107) are connected with the wireless communication protocol supporting block(103), and store register information of the terminal visiting the other region, A HLR(Home Location Register)(110) is connected with the wireless communication protocol supporting block(103), and stores terminal information.
Abstract translation: 目的：提供一种支持移动IP（互联网协议）和通信系统之间的相互漫游的路由设备，以基本上为移动IP协议安装支持功能，并且为每个系统采用相同的路由器，以支持移动性 以及每个通信系统之间的相互漫游，并支持IP（互联网协议）层的数据交换功能。 构成：移动IP（互联网协议）支持块（102）支持移动IP和通信系统之间的漫游。 FA（外国代理）（104,107）存储终端的注册信息。 HA（本地代理）（105,108）存储访问其他区域的终端的FA互联网地址作为转交地址。 切换块（101）连接到IP支持块（102），FA（104,107）和HA（105,108），并与外部执行数据交换功能。 无线通信协议块（103）与切换块（101）连接以支持无线通信协议，并且与移动IP支持块（102）连接以支持通信系统之间的漫游。 VLR（访问位置寄存器）（106,107）与无线通信协议支持块（103）连接，并存储访问其他区域的终端的寄存器信息，HLR（归属位置寄存器）（110）与无线通信 协议支持块（103），并存储终端信息。
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公开(公告)号：KR1020010064261A
公开(公告)日：2001-07-09
申请号：KR1019990062411
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H04B1/7097
CPC classification number: H04L25/0232 , H04L5/0048 , H04L27/2695
Abstract: PURPOSE: A channel estimator of a multi channel CDMA(Code Division Multiple Access) system and an estimating method thereof are provided to set up mutually different average blocks per each channel, so that more than two data channels requesting different quality of service exist. CONSTITUTION: Pilot signal processing units(31,32) de-spread pilot channels, and average pilot symbols during predetermined blocks, to output an estimating temporary channel coefficient. A temporary data detector(33) detects temporary data for each data channel, using signals of multi data channels and the estimating temporary channel coefficient. Multi data channel averaging units(35,37) average corresponding data channels during predetermined blocks, to estimate a temporary channel coefficient reducing the influence by a symbol error and interruption of the data channel. A summer(39) sums channel coefficients estimated from the pilot signal processing units(31,32) and the multi data channel averaging units(35,37), to output a final channel coefficient.
Abstract translation: 目的：提供多通道CDMA（码分多址）系统的信道估计器及其估计方法，以建立每个信道的相互不同的平均块，从而存在两个以上请求不同服务质量的数据信道。 构成：导频信号处理单元（31,32）解扩导频信道，以及预定块期间的平均导频符号，以输出估计临时信道系数。 临时数据检测器（33）使用多数据信道的信号和估计临时信道系数来检测每个数据信道的临时数据。 多数据信道平均单元（35,37）在预定块期间平均相应的数据信道，以估计减少符号误差和数据信道中断的影响的临时信道系数。 夏季（39）对从导频信号处理单元（31,32）和多数据信道平均单元（35,37）估计的信道系数求和，以输出最终的信道系数。
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