公开(公告)号：KR1020050053312A

公开(公告)日：2005-06-08

申请号：KR1020040092535

申请日：2004-11-12

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

Inventor： 윤철식 ,  임순용 ,  김재흥 ,  여건민 ,  유병한

IPC: H04L12/28

CPC classification number: H04L5/0058 ,  H04L5/0007 ,  H04L5/0037 ,  H04W52/0219 ,  H04W72/042 ,  Y02D70/142 ,  Y02D70/146

Abstract: Disclosed is a method for allocating and accessing downlink resources in the OFDMA communication system. In the resource allocation method, bursts having the same modulation and channel encoding level are arranged in a predetermined temporal order on a physical layer. Information on the allocated unit resources is included in a common control block and is transmitted to a subscriber station, and the subscriber station then detects a number of the allocated unit resources to thus check the range of bursts to be received by the subscriber station. Therefore, power consumption by the subscriber station is reduced and signaling overheads of the common control information and unneeded residual resources are decreased.

Abstract translation: 公开了一种在OFDMA通信系统中分配和访问下行链路资源的方法。 在资源分配方法中，具有相同调制和信道编码级别的突发以物理层上的预定时间顺序排列。 关于分配的单位资源的信息被包括在公共控制块中并被发送到订户站，然后用户站检测所分配的单元资源的数量，从而检查用户站要接收的突发的范围。 因此，减少了用户站的功耗，减少了公共控制信息和不需要的剩余资源的信令开销。

公开(公告)号：KR1020050040688A

公开(公告)日：2005-05-03

申请号：KR1020040035207

申请日：2004-05-18

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

Inventor： 윤철식 ,  유창완 ,  여건민 ,  유병한

IPC: H04B7/26

CPC classification number: H04W28/20 ,  H04W72/0406

Abstract: 본 발명은 프리앰블 기반의 대역폭 요청 방법에 관한 것이다.
본 발명에 따르면 프리앰블을 사용하여 대역폭을 요청하는 휴대 인터넷 시스템에서 이동 단말의 상태를 가장 최근의 환경에 따라 상태조절하도록 함으로써 보다 효율적으로 사용자 데이터의 전송이 가능하도록 한다. 또한, 본 발명에 따르면 프리앰블을 사용하여 대역폭 요청 시도를 하였을 때, 기지국이 해당 프리앰블을 전송한 단말을 식별하기 위한 정보를 그 단말에 대한 상태조절 정보와 함께 임시 커넥션 식별자로서 다음 번 해당 단말과의 데이터 전송시 단말을 구분하도록 한다.

公开(公告)号：KR1020050039376A

公开(公告)日：2005-04-29

申请号：KR1020030074828

申请日：2003-10-24

Applicant: 한국전자통신연구원

Inventor： 김동회 ,  유병한

IPC: H04W72/12 ,  H04L12/863 ,  H04L12/851

CPC classification number: H04L47/2433 ,  H04L47/14 ,  H04L47/50 ,  H04L47/522 ,  H04L47/54 ,  H04W72/1242

Abstract: 본 발명은 이동통신 시스템의 스케줄링 시스템 및 방법에 관한 것이다.
본 발명의 스케줄링 시스템 및 방법에 적용된 알고리즘에 따르면, 입력된 실시간 트래픽 패킷에 대한 패킷 손실 확률을 계산하고, 계산된 패킷 손실 확률이 최대 패킷 손실 요구 확률을 초과하는지 여부에 따라 가중치를 달리하여 우선순위를 결정한다. 이때, 가중치는 계산된 패킷 손실 확률이 최대 패킷 손실에 근접할수록 높게 설정된다. 그리고 나서, 결정된 우선순위에 따라 패킷 스케줄링을 수행한다.
이와 같은 스케줄링 알고리즘은 실시간 트래픽에서의 최대 패킷 손실률을 보장하면서도 시스템 용량을 증가시킬 수 있다.

公开(公告)号：KR1020050009663A

公开(公告)日：2005-01-25

申请号：KR1020040027469

申请日：2004-04-21

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

Inventor： 김재흥 ,  임순용 ,  윤철식 ,  여건민 ,  신석주 ,  송봉기 ,  엄광섭 ,  조민희 ,  조재희 ,  유병한 ,  황승구

IPC: H04B7/26

CPC classification number: Y02D70/14 ,  H04W74/006 ,  H04W48/10 ,  H04W52/262 ,  H04W72/044 ,  Y02D70/00

Abstract: PURPOSE: A method and apparatus for allocating radio resources in a wireless mobile Internet system are provided to lower power consumption of mobile terminal and increase use efficiency of a battery thereof. CONSTITUTION: A base station recognizes radio channel characteristics of downlink(S10). The base station determines adaptive modulation and a channel coding level according to the recognized radio channel characteristics(S11). The base station allocates radio resource corresponding to the modulation and the coding level(S12). The base station generates subscriber information with respect to the allocated radio resource and maps it to a common control information block(S13). The base station transmits packet data in a frame format to downlink(S14).

Abstract translation: 目的：提供一种在无线移动互联网系统中分配无线电资源的方法和装置，以降低移动终端的功耗并提高其电池的使用效率。 构成：基站识别下行链路的无线信道特性（S10）。 基站根据识别的无线电信道特性来确定自适应调制和信道编码电平（S11）。 基站分配与调制和编码电平对应的无线资源（S12）。 基站生成关于所分配的无线电资源的用户信息并将其映射到公共控制信息块（S13）。 基站将帧格式的分组数据发送到下行链路（S14）。

公开(公告)号：KR1020050009662A

公开(公告)日：2005-01-25

申请号：KR1020040024862

申请日：2004-04-12

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

Inventor： 윤철식 ,  임순용 ,  김재흥 ,  여건민 ,  유병한 ,  황승구

IPC: H04B7/26

CPC classification number: H04W52/0209 ,  Y02D70/00

Abstract: PURPOSE: A system for controlling a power save mode in a wireless mobile Internet system and a method therefor are provided to reduce complexity of a system and facilitate its management by grouping management of subscriber terminals and collectively controlling them. CONSTITUTION: A message receiver(210) receives a sleep mode request message from a subscriber terminal. A message analyzer(220) analyzes the sleep mode request message and extracts a minimum sleep period, a maximum sleep period and a subscriber terminal ID. A grouping controller(240) determines a sleep mode entering point of the subscriber terminal which has requested the sleep mode based on the minimum sleep period and the maximum sleep period in order to group listening periods of a plurality of subscriber terminals. A memory unit(260) stores sleep mode information of the grouped subscriber terminal. A message transmitter(280) informs the sleep mode-requested subscriber terminal about the minimum sleep period, the maximum sleep period and the sleep mode entering point.

Abstract translation: 目的：提供一种用于控制无线移动因特网系统中的省电模式的系统及其方法，以减少系统的复杂性并且通过对用户终端进行分组管理并集中控制系统来促进其管理。 构成：消息接收机（210）从用户终端接收睡眠模式请求消息。 消息分析器（220）分析睡眠模式请求消息并提取最小睡眠周期，最大睡眠周期和用户终端ID。 分组控制器（240）基于最小睡眠周期和最大睡眠周期来确定已经请求了睡眠模式的用户终端的睡眠模式进入点，以便分组多个用户终端的收听周期。 存储单元（260）存储分组的用户终端的睡眠模式信息。 消息发送器（280）通知睡眠模式请求的用户终端关于最小睡眠周期，最大睡眠周期和睡眠模式进入点。

公开(公告)号：KR100447059B1

公开(公告)日：2004-09-04

申请号：KR1020010082942

申请日：2001-12-21

Applicant: 한국전자통신연구원 ,  유티스타콤코리아 유한회사

Inventor： 유병한 ,  안지환 ,  최대우 ,  백장현

IPC: H04W72/04 ,  H04W28/02

Abstract: PURPOSE: A method for assigning a THP(Traffic Handling Processor) block of an RNC(Radio Network Controller) in a wireless communication system is provided to check whether a usable THP exists in a spare THP block region, to assign a channel, and to change to a spare THP block according to situations of the assigned THP block when a call is completed, thereby efficiently using channel resources. CONSTITUTION: If channel assignment is requested in an RNC according to arrivals of a voice call, a packet call, and a video call(401), a system checks whether a usable channel exists within an assigned THP block region(402). If so, the system assigns a channel for the call request(403), and if not, the system checks whether a spare THP block exists(404). If so, the system includes the THP block in a corresponding traffic-only THP block region, and assigns a channel for a corresponding call(405). If the spare THP block does not exist, the system blocks the corresponding call(406).

Abstract translation: 目的：提供一种用于在无线通信系统中分配RNC（无线电网络控制器）的THP（业务处理处理器）块的方法，以检查在可用THP块区域中是否存在可用THP，分配信道，并且 在呼叫完成时根据分配的THP块的情况切换到备用THP块，从而有效地使用信道资源。 构成：如果根据语音呼叫，分组呼叫和视频呼叫的到达（401）在RNC中请求信道分配，则系统检查在分配的THP块区域内是否存在可用信道（402）。 如果是，则系统为呼叫请求分配一个信道（403），如果不是，系统检查是否存在一个备用THP块（404）。 如果是，则系统将THP块包括在相应的仅限业务量的THP块区域中，并为相应呼叫分配信道（405）。 如果备用THP块不存在，则系统阻止相应的呼叫（406）。

公开(公告)号：KR1020040042648A

公开(公告)日：2004-05-20

申请号：KR1020020071221

申请日：2002-11-15

Applicant: 한국전자통신연구원

Inventor： 이종찬 ,  유병한

IPC: H04B7/26

CPC classification number: G01S5/0294 ,  H04B17/318 ,  H04W4/021 ,  H04W4/029

Abstract: PURPOSE: A system for tracking the position of an MS(Mobile Station) using an area partition and a virtual area and a method therefor are provided to accurately track the position of the MS by adding a virtual area concept including a sector boundary area, a zone boundary area and a block boundary area to an area partition concept. CONSTITUTION: If an MS measures the strength of pilot signals received from a plurality of base stations and transmits the measured strength of the pilot signal to the corresponding base station, a signal strength deciding unit(110) quantizes the transmitted strength of the pilot signal. An MS position defining unit(120) partitions and defines a cell in which the MS is located into a plurality of sectors and sector boundary areas. The MS position defining unit(120) partitions and defines each sector into a plurality of zones and zone boundary areas, and partitions and defines each zone into a plurality of blocks and block boundary areas. An MS position estimating unit(130) compares the quantized strength of the pilot signal with a reference value, and estimates a sector or a sector boundary area in which the MS is located in the defined cell. The MS position estimating unit(130) estimates a zone or a zone boundary area in the estimated sector or sector boundary area, and estimates a block or a block boundary area in the estimated zone or zone boundary area.

Abstract translation: 目的：提供一种使用区域划分和虚拟区域跟踪MS（移动站）的位置的系统及其方法，用于通过添加虚拟区域概念来准确地跟踪MS的位置，所述虚拟区域概念包括扇区边界区域， 区域边界区域和区域划分概念的块边界区域。 规定：如果MS测量从多个基站接收到的导频信号的强度，并将测出的导频信号的强度发送给对应的基站，则信号强度判定单元（110）量化导频信号的发送强度。 MS位置定义单元（120）分割并定义其中MS位于多个扇区和扇区边界区域中的小区。 MS位置定义单元（120）将每个扇区分割并定义为多个区域和区域边界区域，并且将每个区域划分并限定为多个块并且阻塞边界区域。 MS位置估计单元（130）将导频信号的量化强度与参考值进行比较，并且估计MS在所定义的小区中所在的扇区或扇区边界区域。 MS位置估计单元（130）估计估计的扇区或扇区边界区域中的区域或区域边界区域，并且估计所估计的区域或区域边界区域中的块或块边界区域。

公开(公告)号：KR100424159B1

公开(公告)日：2004-03-24

申请号：KR1020010082600

申请日：2001-12-21

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 유병한 ,  안지환 ,  백장현

IPC: H04B7/26

Abstract: PURPOSE: A method for registering a position of a mobile terminal in a mobile communication system is provided to perform position registration for the mobile terminal if a decided mobile direction and a mobile distance satisfy a specific condition, and to store a current mobile direction, thereby reducing paging load when a receiving call arrives. CONSTITUTION: When power is initially supplied, a mobile communication system performs distance reference position registration(S201). If a mobile terminal enters a new base station(S202), the system decides whether a mobile distance arrives at a distance threshold value(S203). If the mobile distance dose not exceed the threshold value, the system decides whether a mobile direction is changed(S204). If so, the system decides whether a current mobile direction is the same as an opposite direction of the mobile direction finally performing position registration(S205). If so, the system decides whether current positions are the same as finally position-registered positions(S206). If so, the system performs the position registration(S207).

Abstract translation: 目的：提供一种用于在移动通信系统中注册移动终端的位置的方法，用于如果确定的移动方向和移动距离满足特定条件，则执行移动终端的位置注册，并由此存储当前移动方向 减少接收呼叫到达时的寻呼负荷。 构成：当初始供电时，移动通信系统执行距离基准位置登记（S201）。 如果移动终端进入新基站（S202），则系统判定移动距离是否到达距离阈值（S203）。 如果移动距离不超过阈值，则系统判定移动方向是否改变（S204）。 如果是，则系统判定当前移动方向是否与最终执行位置登记的移动方向的相反方向相同（S205）。 如果是，则系统判定当前位置是否与最终的位置登记位置相同（S206）。 如果是，则系统执行位置登记（S207）。

公开(公告)号：KR1020030052826A

公开(公告)日：2003-06-27

申请号：KR1020010082942

申请日：2001-12-21

Applicant: 한국전자통신연구원 ,  유티스타콤코리아 유한회사

Inventor： 유병한 ,  안지환 ,  최대우 ,  백장현

IPC: H04W72/04 ,  H04W28/02

CPC classification number: H04W72/0453 ,  H04W28/0231 ,  H04W72/0493

Abstract: PURPOSE: A method for assigning a THP(Traffic Handling Processor) block of an RNC(Radio Network Controller) in a wireless communication system is provided to check whether a usable THP exists in a spare THP block region, to assign a channel, and to change to a spare THP block according to situations of the assigned THP block when a call is completed, thereby efficiently using channel resources. CONSTITUTION: If channel assignment is requested in an RNC according to arrivals of a voice call, a packet call, and a video call(401), a system checks whether a usable channel exists within an assigned THP block region(402). If so, the system assigns a channel for the call request(403), and if not, the system checks whether a spare THP block exists(404). If so, the system includes the THP block in a corresponding traffic-only THP block region, and assigns a channel for a corresponding call(405). If the spare THP block does not exist, the system blocks the corresponding call(406).

Abstract translation: 目的：提供一种用于在无线通信系统中分配RNC（无线电网络控制器）的THP（Traffic Handling Processor，业务处理处理器）块的方法，以检查备用THP块区域中是否存在可用的THP，分配信道， 当呼叫完成时，根据分配的THP块的情况，切换到备用THP块，从而有效地使用信道资源。 构成：如果在RNC中根据语音呼叫，分组呼叫和视频呼叫（401）的到达请求了信道分配，则系统检查在所分配的THP块区域（402）内是否存在可用信道。 如果是，则系统为呼叫请求（403）分配一个信道，如果不是，则系统检查是否存在备用THP块（404）。 如果是，则该系统在对应的仅流量THP块区域中包括THP块，并为相应呼叫分配一个信道（405）。 如果备用THP块不存在，系统将阻止相应的呼叫（406）。

公开(公告)号：KR1020030052586A

公开(公告)日：2003-06-27

申请号：KR1020010082600

申请日：2001-12-21

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 유병한 ,  안지환 ,  백장현

IPC: H04B7/26

CPC classification number: H04W64/006 ,  H04W8/02

Abstract: PURPOSE: A method for registering a position of a mobile terminal in a mobile communication system is provided to perform position registration for the mobile terminal if a decided mobile direction and a mobile distance satisfy a specific condition, and to store a current mobile direction, thereby reducing paging load when a receiving call arrives. CONSTITUTION: When power is initially supplied, a mobile communication system performs distance reference position registration(S201). If a mobile terminal enters a new base station(S202), the system decides whether a mobile distance arrives at a distance threshold value(S203). If the mobile distance dose not exceed the threshold value, the system decides whether a mobile direction is changed(S204). If so, the system decides whether a current mobile direction is the same as an opposite direction of the mobile direction finally performing position registration(S205). If so, the system decides whether current positions are the same as finally position-registered positions(S206). If so, the system performs the position registration(S207).

Abstract translation: 目的：提供一种用于在移动通信系统中登记移动终端的位置的方法，以便如果所确定的移动方向和移动距离满足特定条件并且存储当前移动方向，则执行移动终端的位置注册，从而 当接收呼叫到达时减少寻呼负载。 构成：当开始供电时，移动通信系统进行距离基准位置登录（S201）。 如果移动终端进入新的基站（S202），则系统判定移动距离到达距离阈值（S203）。 如果移动距离不超过阈值，则系统判定移动方向是否改变（S204）。 如果是，则系统判定当前移动方向是否与最终执行位置登记的移动方向的相反方向相同（S205）。 如果是，则系统判定当前位置是否与最终位置登记位置相同（S206）。 如果是，则系统执行位置登记（S207）。