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1. 发明申请

US20070155378A1 Method and device for searching and deallocating abnormal terminal in wireless portable internet system 有权
标题翻译：在无线便携式互联网系统中搜索和解除异常终端的方法和设备
公开(公告)号：US20070155378A1
公开(公告)日：2007-07-05
申请号：US11636937
申请日：2006-12-11
申请人： Sook-Jin Lee , Sung-Cheol Chang , Eun-Kyung Kim , Kyung-Soo Kim
发明人： Sook-Jin Lee , Sung-Cheol Chang , Eun-Kyung Kim , Kyung-Soo Kim
IPC分类号： H04Q7/20
CPC分类号： H04W24/08 , H04W76/30
摘要： The present invention relates to a method for searching and releasing an abnormal subscriber station in a wireless portable Internet system, and an apparatus using the same. The apparatus searches for an abnormal group including abnormal subscriber stations based on a ranging code provided in a periodic ranging process, and searches for an abnormal subscriber station by transmitting a connection maintenance message to subscriber stations included in the abnormal group so as to check an operation status of the respective subscriber stations. In addition, the apparatus releases a connection of an abnormal subscriber station. Therefore, waste of radio resources allocated to the abnormal subscriber station can be prevented, thereby achieving efficient resource management. Further, a secondary search process is performed only for subscriber stations included in an abnormal group, thereby preventing a system load from occurring when searching for an abnormal subscriber station.
摘要翻译：本发明涉及一种在无线便携式互联网系统中搜索和释放异常用户站的方法及其使用方法。该装置基于在周期性测距处理中提供的测距码，搜索包括异常用户站的异常组，并通过向包括在异常组中的用户站发送连接维护消息来搜索异常用户站，以便检查操作各个用户站的状态。此外，该装置释放异常用户台的连接。因此，可以防止分配给异常用户站的无线资源的浪费，从而实现有效的资源管理。此外，仅对包括在异常组中的用户站执行辅助搜索处理，从而防止在搜索异常用户站时发生系统负载。

2. 发明授权

US07904070B2 Method and device for searching and deallocating abnormal terminal in wireless portable internet system 有权
标题翻译：在无线便携式互联网系统中搜索和解除异常终端的方法和设备
公开(公告)号：US07904070B2
公开(公告)日：2011-03-08
申请号：US11636937
申请日：2006-12-11
申请人： Sook-Jin Lee , Sung-Cheol Chang , Eun-Kyung Kim , Kyung-Soo Kim
发明人： Sook-Jin Lee , Sung-Cheol Chang , Eun-Kyung Kim , Kyung-Soo Kim
IPC分类号： H04M3/00
CPC分类号： H04W24/08 , H04W76/30
摘要： The present invention relates to a method for searching and releasing an abnormal subscriber station in a wireless portable Internet system, and an apparatus using the same. The apparatus searches for an abnormal group including abnormal subscriber stations based on a ranging code provided in a periodic ranging process, and searches for an abnormal subscriber station by transmitting a connection maintenance message to subscriber stations included in the abnormal group so as to check an operation status of the respective subscriber stations. In addition, the apparatus releases a connection of an abnormal subscriber station. Therefore, waste of radio resources allocated to the abnormal subscriber station can be prevented, thereby achieving efficient resource management. Further, a secondary search process is performed only for subscriber stations included in an abnormal group, thereby preventing a system load from occurring when searching for an abnormal subscriber station.
摘要翻译：本发明涉及一种在无线便携式互联网系统中搜索和释放异常用户站的方法及其使用方法。该装置基于在周期性测距处理中提供的测距码，搜索包括异常用户站的异常组，并通过向包括在异常组中的用户站发送连接维护消息来搜索异常用户站，以便检查操作各个用户站的状态。此外，该装置释放异常用户台的连接。因此，可以防止分配给异常用户站的无线资源的浪费，从而实现有效的资源管理。此外，仅对包括在异常组中的用户站执行辅助搜索处理，从而防止在搜索异常用户站时发生系统负载。

3. 发明申请

US20070274403A1 Method for Constituting Layered Cell in Ofdma System 审中-公开
标题翻译：在系统中构建分层细胞的方法
公开(公告)号：US20070274403A1
公开(公告)日：2007-11-29
申请号：US10584437
申请日：2004-12-22
申请人： Sung-Cheol Chang , Jae-Sun Cha , Kyung-Soo Kim , Jee Hwan Ahn
发明人： Sung-Cheol Chang , Jae-Sun Cha , Kyung-Soo Kim , Jee Hwan Ahn
IPC分类号： H04L27/28
CPC分类号： H04L5/023 , H04L27/2608 , H04W16/02
摘要： Disclosed is a method for constituting a layered cell, which is for constituting a cell in an OFDMA (Orthogonal Frequency Division Multiple Access) mobile communication system. The method includes: (a) dividing L carriers having orthogonality into M sub-channels; (b) dividing the carriers into N groups each having the M sub-channels; (c) grouping the N groups by an arbitrary integer into K classes; and (d) constituting a plurality of layered cells corresponding to the K classes. According to the present invention, the conception of the independent classes is introduced for a plurality of carriers to facilitate the use of the carriers to a system requiring an independent wireless area, allowing design of sectors and cells at a single frequency.
摘要翻译：公开了一种用于构成OFDMA（正交频分多址）移动通信系统中的小区的分层小区的方法。该方法包括：（a）将具有正交性的L个载波分成M个子信道; （b）将载波划分成各具有M个子信道的N个组; （c）将N组按任意整数分组为K类; 和（d）构成对应于K类的多个分层单元。根据本发明，针对多个载波引入独立类的概念，以便于将载波用于需要独立无线区域的系统，允许在单个频率上设计扇区和小区。

4. 发明授权

US08208851B2 Apparatus and method for relaying between base station and mobile station, and method for receiving control information 失效
标题翻译：基站与移动台之间的中继装置及方法，以及接收控制信息的方法
公开(公告)号：US08208851B2
公开(公告)日：2012-06-26
申请号：US12307320
申请日：2007-07-03
申请人： Byung-Jae Kwak , Dong-Seung Kwon , Dong-Hyun Ahn , Sung-Cheol Chang
发明人： Byung-Jae Kwak , Dong-Seung Kwon , Dong-Hyun Ahn , Sung-Cheol Chang
IPC分类号： H04B7/185
CPC分类号： H04W72/0406 , H04B7/2606 , H04W16/26 , H04W84/047
摘要： When an event associated with a mobile station occurs, a relay station requests a base station to allocate a dedicated control channel required for transmitting control information on the mobile station to the base station. Next, when the control information on the mobile station is generated, the relay station transmits the control information to the base station through the dedicated control channel. Accordingly, since the base station allocates the dedicated control channel to the relay station in advance before the control information is generated in the relay station, the relay station can transmit the control information to the base station with a minimum of time delay.
摘要翻译：当发生与移动站相关联的事件时，中继站请求基站向基站分配在移动站上发送控制信息所需的专用控制信道。接下来，当生成关于移动台的控制信息时，中继站通过专用控制信道向基站发送控制信息。因此，由于基站在中继站中生成控制信息之前，预先向中继站分配专用控制信道，所以中继站可以以最小的时间延迟向基站发送控制信息。

5. 发明授权

US08934448B2 Handover method in wireless portable internet system 有权
标题翻译：无线便携式互联网系统中的切换方法
公开(公告)号：US08934448B2
公开(公告)日：2015-01-13
申请号：US10588248
申请日：2004-09-03
申请人： Jae-Sun Cha , Sung-Cheol Chang
发明人： Jae-Sun Cha , Sung-Cheol Chang
IPC分类号： H04W4/00 , H04W36/00
CPC分类号： H04W36/0055
摘要： Disclosed is a handover method in a wireless portable Internet system. When a mobile subscriber station is in a drop state, a ranging request message including an identifier of a previous base station and a string generated by encoding the ranging request message using an authentication key of the previous base station is sent to a target base station. The target base station requests the previous base station to execute handover of the mobile subscriber station using the identifier of the previous base station included in the ranging request message. The previous base station carries out message authentication using the encoded string received from the target base station, and when the authentication is successful, transmits information about the mobile subscriber station that is required for handover to the target base station. Accordingly, a ceaseless service session can be provided even in the drop state.
摘要翻译：公开了一种无线便携式因特网系统中的切换方法。当移动用户站处于丢弃状态时，将包含先前基站的标识符的测距请求消息和通过使用先前基站的认证密钥对测距请求消息进行编码而生成的字符串被发送到目标基站。目标基站使用包括在测距请求消息中的先前基站的标识符来请求前一基站执行移动用户站的切换。先前的基站使用从目标基站接收的编码串来进行消息认证，并且当认证成功时，向切换目的基站发送关于切换所需的移动用户站的信息。因此，即使在丢弃状态也可以提供不间断的服务会话。

6. 发明申请

US20100049858A1 INITIAL ACCESS METHOD FOR BROADBAND WIRELESS ACCESS SYSTEM 审中-公开
标题翻译：宽带无线接入系统的初始接入方法
公开(公告)号：US20100049858A1
公开(公告)日：2010-02-25
申请号：US12518177
申请日：2007-12-05
申请人： Chul Park , Sung-Cheol Chang , Chul-Sik Yoon
发明人： Chul Park , Sung-Cheol Chang , Chul-Sik Yoon
IPC分类号： G06F15/16
CPC分类号： H04W12/06
摘要： Provided is an initial access method for a broadband wireless access system. The initial access method is used between a portable subscriber station (PSS) and a radio access station (RAS) in the broadband wireless access system and includes an authentication operation and a default transport connection setting operation. In the initial access method, default information, which is required to register the PSS and to set default transport connection, is stored in an authentication authorization accounting (AAA) server, the default information is then transmitted to the RAS connected to the PSS in the authentication operation by the AAA server, and when the PSS is registered and the default transport connection is set, a message composed of parameters, which are required to register the PSS containing the default information and to set the default transport connection, is then transmitted to the PSS by the RAS. Accordingly, a simplified initial access procedure is achieved.
摘要翻译：提供了一种用于宽带无线接入系统的初始接入方法。在宽带无线接入系统中的便携式用户站（PSS）和无线接入站（RAS）之间使用初始接入方法，并且包括认证操作和默认传输连接设置操作。在初始访问方式中，注册PSS和设置默认传输连接所需的默认信息存储在认证授权计费（AAA）服务器中，然后将默认信息发送到连接到PSS的RAS 由AAA服务器进行认证操作，并且当注册了PSS并且设置了默认传输连接时，将包含注册包含默认信息并设置默认传输连接的PSS所需的参数组成的消息被传送到 PSS由RAS。因此，实现简化的初始访问过程。

7. 发明申请

US20080080713A1 Method For Managing Traffic Encryption Key In Wireless Portable Internet System And Protocol Configuration Method Thereof, And Operation Method Of Traffic Encryption Key State Machine In Subscriber Station 有权
标题翻译：无线便携式互联网系统中的流量加密密钥管理方法及其协议配置方法及用户站中流量加密密钥状态机的操作方法
公开(公告)号：US20080080713A1
公开(公告)日：2008-04-03
申请号：US10591625
申请日：2005-03-04
申请人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
发明人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
IPC分类号： H04L9/16 , H04L9/28
CPC分类号： H04L9/0822 , H04L9/0833 , H04L9/0891 , H04L63/068 , H04L2209/80 , H04W4/06 , H04W12/04 , H04W84/12
摘要： Disclosed is a traffic encryption key (TEK) management method for automatically generating a TEK for a multicast or broadcast service by a base station to periodically update a TEK used by a subscriber station. The base station transmits the first Key Update Command message for updating a group key encryption key (GKEK) for encrypting the TEK and the second Key Update Command message for updating the TEK to the subscriber station to update the TEK. The base station establishes an M & B TEK Grace Time which is different from a TEK Grace Time established by the subscriber station, transmits the first message including a new GKEK to the subscriber station through a primary management connection before the M & B TEK Grace Time, and transmits the second message including a new TEK encrypted with the new GKEK thereto through a broadcast connection after the M & B TEK Grace Time.
摘要翻译：公开了一种用于由基站自动生成多播或广播服务的TEK以便周期性地更新用户台使用的TEK的流量加密密钥（TEK）管理方法。基站向用户台发送用于更新用于加密TEK的组密钥加密密钥（GKEK）的第一密钥更新命令消息和用于更新TEK的第二密钥更新命令消息以更新TEK。基站建立与用户台建立的TEK宽限时间不同的M＆B TEK宽限时间，在M＆B TEK宽限时间之前通过主管理连接将包含新GKEK的第一消息发送给用户站并且在M＆B TEK宽限期之后通过广播连接发送包括用新GKEK加密的新TEK的第二消息。

8. 发明授权

US07978855B2 Method for allocating authorization key identifier for wireless portable internet system 有权
标题翻译：分配用于无线便携式互联网系统的授权密钥标识符的方法
公开(公告)号：US07978855B2
公开(公告)日：2011-07-12
申请号：US11908211
申请日：2005-10-27
申请人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
发明人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
IPC分类号： H04L9/12
CPC分类号： H04L9/3213 , H04L9/0825 , H04L9/0866 , H04L9/3271 , H04L63/06 , H04L63/0823 , H04L2209/56 , H04L2209/603 , H04L2209/80
摘要： The present invention relates to a method for allocating an authorization key identifier in a wireless portable Internet system. In a privacy key management version 2 (PKMv2) of the wireless portable Internet system, a base station generates PAK identifier, PMK identifier, and authorization key identifier for distinguishing a primary authorization key (PAK) shared by the base station and the subscriber station in an RSA-based authorization, a pairwise master key (PMK) shared by the base station and the subscriber station in an EAP-based authorization, and authorization keys generated by the PAK and the PMK. The base station transmits PAK identifier, PMK identifier, and authorization key identifier to the subscriber station and shares them with the subscriber station. Therefore, the base station and the subscriber station may easily distinguish more than 2 authorization-related keys. In addition, it is possible to transmit the signal message efficiently in the radio channel by reducing the sizes of the PAK identifier, PMK identifier, and authorization key identifier.
摘要翻译：本发明涉及一种在无线便携式互联网系统中分配授权密钥标识符的方法。在无线便携式因特网系统的隐私密钥管理版本2（PKMv2）中，基站生成PAK标识符，PMK标识符和授权密钥标识符，用于区分由基站和用户站共享的主授权密钥（PAK）基于RSA的授权，基于EAP的授权中由基站和订户站共享的成对主密钥（PMK）以及由PAK和PMK生成的授权密钥。基站向用户台发送PAK标识符，PMK标识符和授权密钥标识符，并与订户站共享。因此，基站和用户站可以容易地区分超过2个授权相关的密钥。此外，可以通过减小PAK标识符，PMK标识符和授权密钥标识符的大小来在无线电信道中有效地发送信号消息。

9. 发明授权

US07907733B2 Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subscriber station 有权
标题翻译：在无线便携式互联网系统中管理流量加密密钥的方法及其协议配置方法以及用户站中业务加密密钥状态机的操作方法
公开(公告)号：US07907733B2
公开(公告)日：2011-03-15
申请号：US10591625
申请日：2005-03-04
申请人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
发明人： Seok-Heon Cho , Sung-Cheol Chang , Chul-Sik Yoon
IPC分类号： H04K1/00 , H04L9/00 , H04L9/08
CPC分类号： H04L9/0822 , H04L9/0833 , H04L9/0891 , H04L63/068 , H04L2209/80 , H04W4/06 , H04W12/04 , H04W84/12
摘要： Disclosed is a traffic encryption key (TEK) management method for automatically generating a TEK for a multicast or broadcast service by a base station to periodically update a TEK used by a subscriber station. The base station transmits the first Key Update Command message for updating a group key encryption key (GKEK) for encrypting the TEK and the second Key Update Command message for updating the TEK to the subscriber station to update the TEK. The base station establishes an M & B TEK Grace Time which is different from a TEK Grace Time established by the subscriber station, transmits the first message including a new GKEK to the subscriber station through a primary management connection before the M & B TEK Grace Time, and transmits the second message including a new TEK encrypted with the new GKEK thereto through a broadcast connection after the M & B TEK Grace Time.
摘要翻译：公开了一种用于由基站自动生成多播或广播服务的TEK以便周期性地更新用户台使用的TEK的流量加密密钥（TEK）管理方法。基站向用户台发送用于更新用于加密TEK的组密钥加密密钥（GKEK）的第一密钥更新命令消息和用于更新TEK的第二密钥更新命令消息以更新TEK。基站建立与用户台建立的TEK宽限时间不同的M＆B TEK宽限时间，在M＆B TEK宽限时间之前通过主管理连接将包含新GKEK的第一消息发送给用户站并且在M＆B TEK宽限期之后通过广播连接发送包括用新GKEK加密的新TEK的第二消息。

10. 发明申请

US20100075663A1 METHOD FOR REPORTING A CHANNEL QUALITY INFORMATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中报告信道质量信息的方法
公开(公告)号：US20100075663A1
公开(公告)日：2010-03-25
申请号：US12447422
申请日：2007-10-29
申请人： Sung-Cheol Chang , Min-Sik Seo , Chul-Sik Yoon
发明人： Sung-Cheol Chang , Min-Sik Seo , Chul-Sik Yoon
IPC分类号： H04W24/00 , H04W72/08 , H04B17/02
CPC分类号： H04L1/0026 , H04B7/2606 , H04L2001/0097 , H04W72/08
摘要： Provided is a method of reporting channel quality information in a wireless communication system. A relay station (RS) measures an uplink signal of a mobile station (MS) to obtain a measurement result, and transmits a report message including the measurement result and identification information of the MS to a base station (BS).
摘要翻译：提供了一种在无线通信系统中报告信道质量信息的方法。中继站（RS）测量移动站（MS）的上行链路信号以获得测量结果，并将包括测量结果和MS的识别信息的报告消息发送到基站（BS）。

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