公开(公告)号：KR100486414B1

公开(公告)日：2005-04-29

申请号：KR1020020083087

申请日：2002-12-24

Applicant: 한국전자통신연구원

Inventor： 송재수 ,  김경수 ,  장성철 ,  김경식 ,  박지수 ,  박순기 ,  김주희

IPC: H04B7/26

Abstract: 본 발명은 이동통신시스템에서 핸드-오버시 데이터 전송에 관한 것으로, 특히 주파수간 핸드-오버(Inter frequency Hand over)와 같은 하드 핸드-오버(Hard Hand Over)에서 기존 링크에서 새로운 링크로 통신경로를 바꾸는 과정에서 기존링크에 있던 전송되지 않은 데이터가 유실을 막고 신뢰성 있는 하드핸드-오버를 지원하기 위한 시스템 및 방법에 관한 것이다. 본 발명은 기지국과 제어국 사이에 새로운 신호를 정의하여 제어국에서는 핸드-오버가 발생한 시점을 기존 기지국에 알려주고 기존 기지국에서는 버퍼에 저장된 데이터가 모두 이동단말로 전송된 시점을 제어국에 알려주어서 기존 통신경로에 남아있던 데이터가 모두 이동단말에 전달되는 것을 보장할 수 있도록 한다. 또한 제어국에 핸드-오버용 버퍼를 두어서 새로운 통신경로를 구축하는 동안 수신되는 데이터를 저장하였다가 이동단말까지 새로운 통신경로가 완성되면 이 버퍼로부터 이동단말로 데이터를 전송함으로써, 이동통신망에서 하드 핸드-오버시 데이터의 유실을 막고 신뢰성 있는 핸드-오버를 지원할 수 있다.

公开(公告)号：KR1020040056980A

公开(公告)日：2004-07-01

申请号：KR1020020083731

申请日：2002-12-24

Applicant: 한국전자통신연구원

Inventor： 송재수 ,  김주희 ,  장성철

IPC: H04B7/26

CPC classification number: H04W36/0011 ,  H04W8/02 ,  H04W8/087 ,  H04W80/04

Abstract: PURPOSE: A handover method in an advanced mobile communication system is provided to minimize the loss of packets generated in the process of an handover, to reduce handover processing delay, and to decrease network loads due to frequent registration procedures dependent on the location movement of mobile terminals. CONSTITUTION: An MN(Mobile Node) in an active state ignores a registration procedure, without executing it, even though an agent advertising message is received from a drift AS(Access Station). Instead, the MN transmits a measurement report message through an RRC connection with a serving AS. The serving AS reads channel status from the received message. If the serving AS determines the start of a handover procedure, the serving AS transmits a connection setup request message, containing physical layer configuration information and MAC configuration information for radio link setup, to the drift AS. Receiving the connection setup request message, the drift AS allocates a radio resource according to the received configuration information and executes MAC entity setup and radio link setup to support the transmission of data.

Abstract translation: 目的：提供高级移动通信系统中的切换方法，以最小化在切换过程中产生的分组丢失，减少切换处理延迟，并且由于频繁的登记过程而导致的网络负载减少，这取决于移动的位置移动 终端。 构成：即使从漂移AS（接入站）接收到代理广告消息，处于活动状态的MN（移动节点）也忽略注册过程而不执行注册过程。 相反，MN通过与服务AS的RRC连接来发送测量报告消息。 服务AS从接收的消息中读取信道状态。 如果服务AS确定切换过程的开始，则服务AS向漂移AS发送包含用于无线电链路建立的物理层配置信息和MAC配置信息的连接建立请求消息。 接收到连接建立请求消息后，漂移AS根据接收到的配置信息分配无线资源，执行MAC实体建立和无线链路建立，支持数据传输。

公开(公告)号：KR1020040056979A

公开(公告)日：2004-07-01

申请号：KR1020020083730

申请日：2002-12-24

Applicant: 한국전자통신연구원

Inventor： 박순기 ,  김경수 ,  장성철 ,  김경식 ,  박지수 ,  송재수 ,  김주희

IPC: H04B7/26

CPC classification number: H04W4/16 ,  H04B7/26 ,  H04W36/20 ,  H04W72/10

Abstract: PURPOSE: A method for controlling call admission in mobile communication and a recording medium storing a program to realize the same are provided to efficiently use system resources and to execute discriminatory processing according to the traffic characteristics of mobile users in the case of system congestion. CONSTITUTION: If the service speed of an arrived call is fixed in case that the arrived call is a new call(S12,S13), a base station judges whether the call meets the first condition in which (Ipresent + ΔIi) is less than (Itotal - IGMreserved, new call)(S14). If the call satisfies the first condition, the base station approves the call request at a service speed of Ri(S15). However, in case that the call does not meet the first condition, the base station rejects the call(S16). Meanwhile, if the arrived call is a new call and the service speed is variable(S21), the base station judges whether the call meets the second condition in which (Ipresent + ΔImaxi) is less than (Itotal - IGMreserved, new call)(S22). In case that the call meets the second condition, the base station approves the call request at a service speed of Rmaxi(S23).

Abstract translation: 目的：提供一种用于控制移动通信中的呼叫准入的方法和存储实现其的程序的记录介质，以在系统拥塞的情况下根据移动用户的业务特性来有效地使用系统资源和执行鉴别处理。 构成：如果到达呼叫是新呼叫（S12，S13），则到达呼叫的服务速度是固定的，则基站判断呼叫是否满足（Ipresent +ΔIi）小于（Ipresent +ΔIi）的第一条件 Itotal - IGMreserved，新电话）（S14）。 如果呼叫满足第一条件，则基站以Ri的服务速度（S15）批准呼叫请求。 然而，在呼叫不符合第一条件的情况下，基站拒绝该呼叫（S16）。 同时，如果到达的呼叫是新呼叫并且服务速度是可变的（S21），则基站判断呼叫是否满足（Ipresent +ΔImaxi）小于（Itotal-IGMreserved，新呼叫）的第二条件 S22）。 在呼叫满足第二条件的情况下，基站以Rmaxi的服务速度来批准呼叫请求（S23）。

公开(公告)号：KR1020040056584A

公开(公告)日：2004-07-01

申请号：KR1020020083087

申请日：2002-12-24

Applicant: 한국전자통신연구원

Inventor： 송재수 ,  김경수 ,  장성철 ,  김경식 ,  박지수 ,  박순기 ,  김주희

IPC: H04B7/26

CPC classification number: H04W36/02 ,  H04B7/26 ,  H04W36/08 ,  H04W72/06

Abstract: PURPOSE: A hard handover method and system free from data loss is provided to increase service quality by preventing data loss in a hard hand-over and to efficiently operate a new hard handover method. CONSTITUTION: A base station controller(300) consists of an RRC(Radio Resource Control) layer(310) and an RLC(Radio Link Control) layer(320). The RRC layer(310) comprises a call control part(311). The RLC layer(320) comprises a buffer control part(321) and a handover buffer(322). The call control part(311) controls the buffer control part(321) with call setup and release. If a mobile terminal moves from the coverage of the first base station(100) to the coverage of the second base station(200), it is reported to the base station controller(300) through a measurement report message. Receiving the measurement report message, the base station controller(300) generates a handover. If a handover is generated, the call control part(311) stops the transmission of downlink data to the first base station(100) and directs the buffer control part(321) to store the data incoming from a core network(400) in the handover buffer(322). At the same time, the call control part(311) transmits a handover generation message to inform the first base station(100) that a hand-over has been generated.

Abstract translation: 目的：提供硬切换方法和无数据丢失的系统，通过防止硬切换中的数据丢失并有效地操作新的硬切换方法来提高服务质量。 构成：基站控制器（300）由RRC（无线资源控制）层310和RLC（无线链路控制）层320组成。 RRC层（310）包括呼叫控制部（311）。 RLC层（320）包括缓冲器控制部分（321）和切换缓冲器（322）。 呼叫控制部（311）通过呼叫建立和释放来控制缓冲器控制部（321）。 如果移动终端从第一基站（100）的覆盖区移动到第二基站（200）的覆盖范围，则通过测量报告消息向基站控制器（300）报告。 接收到测量报告消息，基站控制器（300）产生切换。 如果生成切换，则呼叫控制部（311）停止向第一基站（100）发送下行链路数据，并指示缓冲器控制部（321）将来自核心网（400）的数据存储在 切换缓冲器（322）。 同时，呼叫控制部分（311）发送切换生成消息以通知第一基站（100）已经生成切换。

公开(公告)号：KR1020030053132A

公开(公告)日：2003-06-28

申请号：KR1020010083172

申请日：2001-12-22

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 김승희 ,  지창용 ,  박순기 ,  장성철 ,  안지환

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  H04L41/0695 ,  H04W24/04

Abstract: PURPOSE: A method for guaranteeing conformity of connection information among distributed control processors in a control station of a mobile communication system is provided to solve a non-conformity of connection information caused due to an error by driving a restoration algorithm. CONSTITUTION: When an SCP(Switch Control Processor) board of a switch controller(221) is instantaneously failed, the switching controller(221) informs an access routing unit(214) of an SCP restart processing starting(411). The access routing unit(214) sets the SCP to an unavailable state and when a connection request message is received from an access controller, the access routing unit(214) rejects it(412). The access routing unit(214) informs the switch controller(221) of receiving an SCP restart processing start message(413). The switch controller(221) requests pre-set connection information from an AIM(ATM Interface Modules) of every ATM interface unit(222)(414). The ATM interface unit(222) extracts pre-set connection information in each AIM on the basis of uni-directional connection(415) and gives the switch controller(221) the pre-set connection information in each AIM(416). The switch controller(221) restores connection information of itself by using the information received from the AIMs of every ATM interface unit(222) and judges whether connection information in the SCP has been completely generated(417). The switch controller(221) is restored to a previous state before restarting and informs the access routing unit(214) of the SCP restart processing completion(418). The access routing unit(214) sets the SCP state to an available state to normally process a connection request message as received(419). The access routing unit(214) informs the switch controller(221) of receipt of the SCP restart processing completion message(420).

Abstract translation: 目的：提供一种用于确保移动通信系统的控制站中的分布式控制处理器之间的连接信息的一致性的方法，以通过驱动恢复算法来解决由于错误引起的连接信息的不一致性。 构成：当开关控制器（221）的SCP（开关控制处理器）板瞬间失效时，切换控制器221向接入路由单元214通知SCP重启处理开始（411）。 接入路由单元（214）将SCP设置为不可用状态，并且当从接入控制器接收到连接请求消息时，接入路由单元（214）拒绝它（412）。 接入路由单元（214）通知交换机控制器（221）接收到SCP重启处理开始消息（413）。 交换控制器（221）从每个ATM接口单元（222）的AIM（ATM接口模块）（414）请求预设的连接信息。 ATM接口单元（222）基于单向连接（415）提取每个AIM中的预设连接信息，并且在每个AIM（416）中给出交换控制器（221）预设的连接信息。 开关控制器221通过使用从每个ATM接口单元（222）的AIM接收到的信息来恢复其自身的连接信息，并判断SCP中的连接信息是否已经完全生成（417）。 切换控制器（221）在重新启动之前恢复到先前状态，并且通知接入路由单元（214）SCP重新启动处理完成（418）。 接入路由单元（214）将SCP状态设置为可用状态，以正常处理接收到的连接请求消息（419）。 接入路由单元（214）通知交换机控制器（221）接收到SCP重启处理完成消息（420）。

公开(公告)号：KR1020030050879A

公开(公告)日：2003-06-25

申请号：KR1020010081417

申请日：2001-12-19

Applicant: 한국전자통신연구원 ,  주식회사 현대시스콤

Inventor： 송재수 ,  장성철 ,  김경수

IPC: H04Q1/20

Abstract: PURPOSE: A call processing method for processor duplexing in a wireless communication system is provided to restore data of an active board in a standby board and synchronize the two boards when they are needs to be switched due to the occurrence of failure. CONSTITUTION: Initialization is performed to load a task and data related to call information are all backup(201). When a message is received, it is checked whether the message is a normal message or a duplexing related message(202). If the received message is the normal message, it is processed in an original routine and dynamic data are updated(203,204). If the received message is the duplexing related message, a standby board is switched to an active board and a dynamic/static data restoration and data synchronization algorithm is executed(205-207).

Abstract translation: 目的：提供一种用于无线通信系统中处理器双工的呼叫处理方法，用于恢复备用板中活动板的数据，并由于发生故障而需要切换时对两块板进行同步。 规定：执行初始化以加载任务，与呼叫信息相关的数据全部备份（201）。 当接收到消息时，检查该消息是正常消息还是双工相关消息（202）。 如果接收到的消息是正常消息，则以原始例程进行处理，并更新动态数据（203,204）。 如果接收到的消息是双工相关消息，则备用板切换到活动板，并执行动态/静态数据恢复和数据同步算法（205-207）。

公开(公告)号：KR100369937B1

公开(公告)日：2003-02-05

申请号：KR1020000083020

申请日：2000-12-27

Applicant: 한국전자통신연구원

Inventor： 유병한 ,  김주희 ,  장성철

IPC: H04L12/28

Abstract: PURPOSE: A performance analyzing method and bandwidth determining method of a broadband transmission path adopting a statistical multiplier are provided to theoretically evaluate loss probability and transmission delay of a packet according to a given traffic situation, effectively operate a broadband transmission path and maintain a suitable transmission quality by evaluating a bandwidth of the transmission path according to a bandwidth determining method proposed in case that a loss probability and transmission delay of a required packet have not been previously determined. CONSTITUTION: A bandwidth satisfying a delay condition is determined(S31). A size of a transmission buffer of a broadband transmission path satisfying a maximum allowable delay time is determined(S31). A packet loss probability of a bandwidth is calculated in consideration of the maximum delay time(S33). A packet loss probability(Pd) and a packet loss probability(PL) requested for transmission are compared(S34). If Pd is greater than PL, a size of a buffer is increased one by one(S36) to calculate a packet loss probability of the bandwidth(S37), the obtained packet loss probability(Pd) and the packet loss probability(PL) requested for transmission are compared(S38), thereby finding a buffer size satisfying a QoS(quality of service) condition. A bandwidth satisfying the QoS is determined(S39).

Abstract translation: 目的：提供一种采用统计乘法器的宽带传输路径的性能分析方法和带宽确定方法，以根据给定的业务情况从理论上评估分组的丢失概率和传输延迟，有效地操作宽带传输路径并保持适当的传输 通过根据在预先未确定所需分组的丢失概率和传输延迟的情况下提出的带宽确定方法来评估传输路径的带宽来确定质量。 构成：确定满足延迟条件的带宽（S31）。 确定满足最大可允许延迟时间的宽带传输路径的传输缓冲器的大小（S31）。 考虑最大延迟时间来计算带宽的分组丢失概率（S33）。 比较请求发送的分组丢失概率（Pd）和分组丢失概率（PL）（S34）。 如果Pd大于PL，则逐个增加缓冲器的大小（S36）以计算带宽的分组丢失概率（S37），获得的分组丢失概率（Pd）和请求的分组丢失概率（PL） 进行比较（S38），从而找到满足QoS（服务质量）条件的缓冲器大小。 确定满足QoS的带宽（S39）。

公开(公告)号：KR100365722B1

公开(公告)日：2002-12-26

申请号：KR1020000082355

申请日：2000-12-26

Applicant: 한국전자통신연구원

Inventor： 유병한 ,  장성철 ,  백장현

IPC: H04B7/26

Abstract: 1. 청구범위에 기재된 발명이 속하는 기술분야
본 발명은 이동통신 시스템에서 하향링크 채널화코드 할당 방법에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 음성, 데이터, 영상 등의 다양한 트래픽이 존재하고, 각 트래픽의 호 요구시에 할당해 주어야 할 코드(code) 수가 다른 경우, 기지국의 하향 채널화코드(channelisation code) 자원중에서 각 트래픽이 전용으로 사용할 코드 수 및 공유하여 사용할 코드 수를 적절하게 산출하여, 일부는 각 트래픽이 전용으로 사용하고, 일부는 각 트래픽이 공유하여 사용하게 함으로써, 블록킹 확률 등의 서비스기준을 만족하면서 코드 자원을 가능한 한 효율적으로 사용하게 하는, 이동통신 시스템에서 하향링크 채널화코드 할당 방법 및 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하는데 그 목적이 있음.
3. 발명의 해결 방법의 요지
본 발명은, 이동통신 시스템에 적용되는 하향링크 채널화코드 할당 방법에 있어서, 트래픽 형태별 호(Call)의 수 및 호당 필요한 코드(Code)를 기초로 각 트래픽 형태가 전용으로 사용하는 코드 수 및 공유하여 사용하는 코드 수를 산출하는 제 1 단계; 및 호를 요구한 트래픽 형태에 따라 상기 제 1 단계에서 산출된 전용으로 사용하는 코드 수 및 공유하여 사용하는 코드 수 내의 코드 자원을 검사하여,이용가능한 코드가 있으면 상기 요구된 호에 상기 사용 가능한 코드를 할당하고, 이용가능한 코드가 없으면 상기 요구된 호를 기각하는 제 2 단계를 포함함.
4. 발명의 중요한 용도
본 발명은 이동통신 시스템에서 하향링크 채널화코드 할당 등에 이용됨.

公开(公告)号：KR1020020053993A

公开(公告)日：2002-07-06

申请号：KR1020000082356

申请日：2000-12-26

Applicant: 한국전자통신연구원

Inventor： 유병한 ,  장성철 ,  백장현

IPC: H04B7/26

CPC classification number: H04W72/042 ,  H04W72/14

Abstract: PURPOSE: A method for assigning a traffic channel resource and controlling a call in a mobile communication system is provided to effectively use a traffic channel resource by calculating a channel resource used dedicatedly by each traffic form, assigning a channel first to a dedicatedly assigned area when a call is requested, and assigning a channel by inspecting there is an available channel in a shared channel area if there is no available channel in an environment where various traffic forms with difference transfer rate required for a voice, a packet and an image traffic. CONSTITUTION: A hybrid channel method is adopted in which some of the entire traffic channel resources are used dedicatedly by each traffic form and some are shared by each traffic form. The number of THPs(traffic handling processor) used dedicatedly by each traffic form and the number of the THPs used by sharing are properly calculated. And then, when a call is requested, an available traffic channel is assigned. Then, the traffic channel resource can be more effectively used than using the traffic channel resource by sharing it by the entire traffic form.

Abstract translation: 目的：提供一种在移动通信系统中分配业务信道资源和控制呼叫的方法，以通过计算每个业务形式专门使用的信道资源来有效地使用业务信道资源，首先将信道分配给专用分配区域，当 如果在具有语音，分组和图像业务所需的差传输速率的各种业务形式的环境中没有可用信道，则通过检查来分配信道，并且通过检查分配信道在共享信道区域中存在可用信道。 构成：采用一种混合信道方式，其中一些整个业务信道资源由每个流量形式专用，一些由每个流量形式共享。 适当计算每个流量形式专门使用的THP（流量处理处理器）数量和共享使用的THP数量。 然后，当请求呼叫时，分配可用业务信道。 然后，通过以整个流量形式共享流量信道资源，可以更有效地利用业务信道资源。

公开(公告)号：KR102160005B1

公开(公告)日：2020-09-25

申请号：KR1020200036695

申请日：2020-03-26

Applicant: 한국전자통신연구원

Inventor： 박현서 ,  김윤주 ,  김은경 ,  김태중 ,  이안석 ,  이유로 ,  장성철

IPC: H04W36/02 ,  H04W36/08