公开(公告)号：KR1020050091578A

公开(公告)日：2005-09-15

申请号：KR1020040017071

申请日：2004-03-12

Applicant: 삼성전자주식회사

Inventor： 이성진 ,  홍승은 ,  강현구 ,  임근휘 ,  구창회 ,  장홍성 ,  손중제 ,  손영문 ,  김소현 ,  강현정 ,  임형규 ,  박중신 ,  심재정 ,  장용

IPC: H04L27/26

Abstract: 본 발명은 전체 주파수 대역을 다수의 서브 캐리어 대역들로 분할하고, 미리 설정된 설정 개수의 인접한 서브 캐리어 대역들의 집합인 서브 채널들을 구비하는 무선 통신 시스템의 기지국에서 서비스를 받고 있는 모든 가입자 단말기들이 공통적으로 수신해야만 하는 공통 제어 정보를 송신하는 방법에 있어서, 상기 서브 채널들중 미리 설정한 설정 개수의 서브 채널들을 상기 공통 제어 정보를 송신하기 위한 공통 제어 정보 채널로 결정하는 과정과, 상기 공통 제어 정보를 상기 공통 제어 정보 채널을 통해 송신하는 과정을 포함한다.

公开(公告)号：KR1020050089712A

公开(公告)日：2005-09-08

申请号：KR1020040015987

申请日：2004-03-05

Applicant: 삼성전자주식회사

Inventor： 임근휘 ,  김태원 ,  장홍성 ,  심재정 ,  박중신 ,  장용 ,  김소현 ,  윤승일 ,  손영문

IPC: H04L29/06

CPC classification number: H04W36/0033 ,  H04L1/1867 ,  H04W8/26 ,  H04W28/065 ,  H04W36/08 ,  H04W76/22 ,  H04W80/02 ,  H04W88/12

Abstract: A divided Media Access Control (MAC) protocol structure, a data transmission and reception method, and a handover method and system using the structure in a wireless communication system for efficiently managing session information in handover of an MSS (Mobile Subscriber Station). In the MAC protocol structure, a MAC is divided into a MAC-high layer and a MAC-low layer. The MAC-high layer performs session information-related functions and the MAC-low layer performs functions sensitive to a time delay in relation to handover of an MSS. In the handover method, when an MSS in the wireless communication system performs handover between Access Points (APs), session information is managed at a fixed position by an Access Point Controller (APC) including an MAC-high layer or a serving AP. Therefore, the system load can be reduced and communication quality can be improved.

公开(公告)号：KR1020050089686A

公开(公告)日：2005-09-08

申请号：KR1020040015207

申请日：2004-03-05

Applicant: 삼성전자주식회사

Inventor： 심재정 ,  송봉기 ,  엄광섭 ,  홍승은 ,  손영문 ,  김소현 ,  강현구 ,  김태원 ,  임근휘 ,  박중신 ,  윤승일 ,  장홍성 ,  장용

IPC: H04B7/26

CPC classification number: H04W76/11 ,  H04W8/26 ,  H04W28/10

Abstract: A method for managing a service flow of a mobile subscriber station (MSS) in a serving base station (BS) for a mobile communication system including the serving BS in communication with the MSS through a wireless access channel, and at least one active BS included in an active BS set of the MSS. Upon receiving a service flow management request from the MSS, the serving BS updates a service flow with the MSS, and transmits the updated service flow to the active BS using a predetermined message. Upon receiving a response message for the updated service flow from the active BS, the serving BS transmits service flow information of each active BS included in the response message to the MSS.

公开(公告)号：KR1020050044220A

公开(公告)日：2005-05-12

申请号：KR1020030078820

申请日：2003-11-07

Applicant: 삼성전자주식회사

Inventor： 손중제 ,  구창회 ,  손영문 ,  이성진 ,  김소현 ,  강현정

IPC: H04B7/26

CPC classification number: H04W36/26 ,  H04W36/08

Abstract: 본 발명은 광대역 무선 접속 통신 시스템에서, 서빙 기지국이 이동 가입자 단말기가 핸드오버해야함을 결정하면 상기 이동 가입자 단말기의 인접 기지국들중 상기 이동 가입자 단말기가 현재 제공받고 있는 서비스의 서비스 품질 레벨을 고려하여 핸드오버 가능한 핸드오버 가능 인접 기지국들을 결정하고, 상기 결정한 핸드오버 가능 인접 기지국들에 대한 정보를 포함시켜 상기 이동 가입자 단말기로 핸드오버할 것을 요구한 후, 상기 핸드오버 요구에 따라 상기 이동 가입자 단말기로부터 상기 이동 가입자 단말기가 핸드오버할 타겟 기지국에 대한 정보를 수신하여 상기 타겟 기지국으로 상기 이동 가입자 단말기가 핸드오버할 것임을 통보한다.

公开(公告)号：KR1020050029254A

公开(公告)日：2005-03-24

申请号：KR1020030065389

申请日：2003-09-20

Applicant: 삼성전자주식회사

Inventor： 김소현 ,  강현정 ,  이성진 ,  손영문 ,  손중제 ,  구창회

IPC: H04B7/26

CPC classification number: H04W52/0235 ,  Y02D70/142 ,  Y02D70/146

Abstract: An apparatus and method for transmitting a wakeup channel for state transition between modes in a sleeping state of a broadband wireless communication system are provided to support an operation of transition from a sleep mode to an awake mode or from the awake mode to the sleep mode. A terminal receives position information of a WUI(Wake-Up channel Indicator) for the terminal itself from a base station in an awake mode(601). If there is no data to be transmitted to or received from the base station, the terminal is transited to a sleep mode(605) and periodically receives a DL-BCCH(Downlink-Broadcast Channel)(605). If the position of a frame and a slot of a received channel signal is identical to the position of the WUI previously allocated from the base station(607), the terminal is transited to an awake mode(609) and reads DL-WUCH(Downlink Wake Up Channel) information(611). If the WUI indicates ON, the terminal is transited to the awake mode(615) and reads a received DL-BCCH(617).

Abstract translation: 提供一种用于在宽带无线通信系统的睡眠状态下发送用于状态转换的唤醒信道的装置和方法，以支持从睡眠模式转换到唤醒模式或从唤醒模式转换到睡眠模式的操作。 终端在唤醒模式（601）中从基站接收终端本身的WUI（唤醒信道指示符）的位置信息。 如果没有要发送到基站的数据或从基站接收的数据，则终端被转移到休眠模式（605）并且周期性地接收DL-BCCH（下行链路广播信道）（605）。 如果帧的位置和接收到的信道信号的时隙与从基站（607）预先分配的WUI的位置相同，则终端转移到唤醒模式（609），并读取DL-WUCH（下行链路 唤醒频道）信息（611）。 如果WUI指示为ON，则终端转移到唤醒模式（615），并读取接收到的DL-BCCH（617）。

公开(公告)号：KR1020050025077A

公开(公告)日：2005-03-11

申请号：KR1020040070424

申请日：2004-09-03

Applicant: 삼성전자주식회사

Inventor： 강현정 ,  구창회 ,  손중제 ,  손영문 ,  김소현 ,  이성진

IPC: H04B7/26

CPC classification number: H04W36/0055 ,  H04W36/30 ,  H04W56/001

Abstract: A system and a method for selecting a serving base station according to drop of an MSS(Mobile Subscriber Station) in a broadband wireless access communication system are provided to resume communication of a dropped MSS within the shortest time by informing a new serving base station that the MSS has been dropped and resumes communication to allow the MSS to be preferentially allocated with resources. When an MSS(1600) and a serving BS(Base Station)(1610) are initially synchronized(1611), the MSS(1600) receives a DL(Downlink)_MAP message, a UL(Uplink)_MAP message, a DCD(Downlink Channel Descript) message and a UCD(Uplink Channel Descript) message from the serving BS(1610)(1613). The MSS(1600) transmits a drop ranging code in order to inform that the MSS(1600) itself has been dropped and currently resumes communication(1615). Upon receiving the drop ranging code, the serving BS(1610) recognizes that the MSS(1600) has been dropped and resumes communication and transmits the DL_MAP, the UL_MAP, the DCD and the UDC message at a next transmission time(1617). The MSS(1600) transmits an RNG-REQ message including information on a previous serving BS with which the MSS(1600) has communicated and coding information(1619). The serving BS(1610) transmits an RNG-RSP message, namely, a response message to the RNG-REQ message, to the MSS(1600)(1621). The MSS(1600) performs a network entering operation with the serving BS(1610)(1623).

Abstract translation: 提供了一种用于在宽带无线接入通信系统中根据MSS（移动用户站）的丢弃来选择服务基站的系统和方法，以通过向新的服务基站通知新的服务基站来恢复丢失的MSS的通信 MSS已被丢弃并恢复通信，以允许MSS优先分配资源。 当MSS（1600）和服务BS（基站）（1610）最初同步（1611）时，MSS（1600）接收DL（下行链路）_MAP消息，UL（上行链路）_MAP消息，DCD 信道描述）消息和来自服务BS（1610）（1613）的UCD（上行链路信道描述）消息。 MSS（1600）发送下降测距码以通知MSS（1600）本身已被丢弃并且当前恢复通信（1615）。 服务BS（1610）在接收到下载测距码后，识别出MSS（1600）已经丢弃并恢复通信，并在下一个发送时间（1617）发送DL_MAP，UL_MAP，DCD和UDC消息。 MSS（1600）发送包括关于MSS（1600）已经通信的先前服务BS的信息的编码信息（1619）的RNG-REQ消息。 服务BS（1610）向MSS（1600）（1621）发送RNG-RSP消息，即，向RNG-REQ消息的响应消息。 MSS（1600）使用服务BS（1610）（1623）执行网络进入操作。

公开(公告)号：KR1020050021687A

公开(公告)日：2005-03-07

申请号：KR1020030058687

申请日：2003-08-25

Applicant: 삼성전자주식회사

Inventor： 김소현 ,  구창회 ,  손중제 ,  손영문 ,  이성진 ,  강현정

IPC: H04J11/00

CPC classification number: H04L5/0023 ,  H04B7/086 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0044

Abstract: PURPOSE: An orthogonal frequency division multiple access communication system and a method adopting a spatial division multiple access are provided to increase access success rate by increasing a spatial space having orthogonality through a switched beamforming. CONSTITUTION: A plurality of mobile stations(650) transmits an access signal through a certain access sub-carrier or preset access sub-carrier out of preset access channels(611). A base station(600) receives access signals from the mobile stations through a plurality of antennas and detects signals from the mobile stations accessing to the base station(613). The base station performs a beamforming on the received signals to discriminate them based on a transmitted spatial space(615). The base station assigns data sub-carriers to the mobile stations based on spatial spaces of the mobile stations(617). The assigned data sub-carrier is transmitted to a corresponding mobile station(619). The mobile station transmits data using the assigned data sub-carrier(621).

Abstract translation: 目的：提供一种正交频分多址通信系统和采用空分多址的方法，通过增加具有通过切换波束成形的正交性的空间空间来提高接入成功率。 构成：多个移动站（650）通过某个接入子载波或预置的接入子载波在预设接入信道（611）之外发送接入信号。 基站（600）通过多个天线从移动站接收接入信号，并检测来自接入基站（613）的移动台的信号。 基站对所接收的信号执行波束形成，以便基于发送的空间空间来区分它们（615）。 基站基于移动站的空间空间向移动站分配数据子载波（617）。 所分配的数据子载波被发送到对应的移动站（619）。 移动台使用分配的数据子载波（621）发送数据。

公开(公告)号：KR1020040079661A

公开(公告)日：2004-09-16

申请号：KR1020030014643

申请日：2003-03-08

Applicant: 삼성전자주식회사

Inventor： 김소현 ,  구창회 ,  손중제

IPC: H04B7/26

CPC classification number: H04W36/0083

Abstract: PURPOSE: A handover method in a base station of a wideband wireless access communication system and a method thereof are provided to request an SS(Subscriber Station) to perform a handover process by a base station, and to perform the handover process in the new base station, thereby distributing a call processing function of the SS. CONSTITUTION: A user terminal reads a DL(Downlink)__MAP message and a UL(Uplink)_MAP message received from a serving base station(1000,1002), and reads a peripheral base station list included in the DL_MAP message(1004). The user terminal measures a CINR for a pilot channel(1006), and decides whether a number of a peripheral base station for measuring the CINR is smaller than a BS_MAX number(1008). If so, the user terminal compares the CINR with a CINR of the serving base station(1010), and transmits a handover request message to the serving base station(1012). The user terminal receives a handover response message(1014), and reads a carrier frequency and an identifier of a target base station(1016). The user terminal changes a frequency into a frequency of the target base station(1018), reads a DL_MAP message and a UL_MAP message from the target base station(1020,1022), and transceives data with the target base station(1024).

Abstract translation: 目的：提供宽带无线接入通信系统的基站中的切换方法及其方法，以请求SS（用户站）执行基站的切换处理，并在新基站中执行切换处理 从而分配SS的呼叫处理功能。 构成：用户终端读取从服务基站（1000,1002）接收的DL（下行链路）__ MAP消息和UL（上行链路）_MAP消息，并读取DL_MAP消息（1004）中包括的外围基站列表。 用户终端测量用于导频信道（1006）的CINR，并且确定用于测量CINR的外围基站的数量是否小于BS_MAX号码（1008）。 如果是，则用户终端将CINR与服务基站（1010）的CINR进行比较，并向服务基站发送切换请求消息（1012）。 用户终端接收切换响应消息（1014），并且读取目标基站（1016）的载波频率和标识符。 用户终端将频率改变为目标基站（1018）的频率，从目标基站（1020,1022）读取DL_MAP消息和UL_MAP消息，并且收发与目标基站（1024）的数据。

公开(公告)号：KR1020040005190A

公开(公告)日：2004-01-16

申请号：KR1020020039502

申请日：2002-07-08

Applicant: 삼성전자주식회사

Inventor： 김소현

IPC: H04W80/02 ,  H04B1/69

CPC classification number: H04W28/06 ,  H04W28/18

Abstract: PURPOSE: A method for setting an efficient initial TFC(Transport Format Combination) of a WCDMA(Wideband Code Division Multiple Access) system is provided to transmit a maximum initial PDU value to each RLC layer according to a maximum initial TFC value, and to set an initial TFC, thereby magnifying TFC performance. CONSTITUTION: When initializing a channel, an RRC(Radio Resource Control) layer(100) transmits TFS(Transport Format Set) information and TFCS(Transport Format Combination Set) information(11). An MAC layer(300) analyzes the TFS information and the TFCS information, and selects an initial TFC for assigning a maximum PDU value to a transport channel with which a logical channel is mapped(13). The MAC layer(300) assigns an initial PDU value in accordance with the initial TFC to each logical channel, and transmits the initial PDU value to an RLC(Radio Link Control) layer(200)(15,17,19,21). The RLC layer(200) receives the initial PDU value, and sets a final PDU value(23).

Abstract translation: 目的：提供一种用于设置WCDMA（宽带码分多址）系统的有效初始TFC（传输格式组合））的方法，以根据最大初始TFC值向每个RLC层发送最大初始PDU值，并设置 初始TFC，从而放大TFC性能。 规定：在初始化信道时，RRC（Radio Resource Control，无线资源控制）层（100）发送TFS（传输格式集合）信息和TFCS（传输格式组合集合）信息（11）。 MAC层（300）分析TFS信息和TFCS信息，并且选择用于将最大PDU值分配给与其映射逻辑信道的传输信道的初始TFC（13）。 MAC层（300）将根据初始TFC的初始PDU值分配给每个逻辑信道，并将初始PDU值发送到RLC（无线链路控制）层（200）（15,17,19,21）。 RLC层（200）接收初始PDU值，并设置最终PDU值（23）。