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公开(公告)号：KR100448318B1
公开(公告)日：2004-09-16
申请号：KR1020030078868
申请日：2003-11-08
Applicant: 삼성전자주식회사 , 유니버시티 오브 매릴랜드 칼리지 팍
IPC: H04B7/26
CPC classification number: H04W36/0055 , H04W12/06 , H04W36/0016 , H04W36/0033 , H04W36/0038 , H04W36/08 , H04W40/00 , H04W48/16 , H04W48/20 , H04W84/045 , H04W84/12 , H04W84/18 , H04W88/08 , H04W92/20
Abstract: 본 발명은 고속의 안정된 무선망에서의 핸드오프에 따른 지연을 최소화하는 방법을 제안하고자 한다. 이를 위해 본 발명에서는 현재 이동 단말기와의 접속을 가지는 접속점이 상기 이동 단말기와의 재접속을 위해 요구되는 정보를 핸드오프가 가능한 인접 접속점들로 전파하도록 한다. 그리고 인접 접속점들은 상기 이동 단말기가 이동하면 컨텍스트에 의해 상기 이동 단말기와의 재접속을 수행하도록 한다. 따라서 핸드오프 절차를 수행할 시 해당 이동 단말기에 대한 컨텍스트를 전달받기 위해 소요되는 시간을 줄일 수 있어 빠른 핸드오프가 이루어질 수 있도록 하였다.
Abstract translation: 当在无线网络中执行越区切换时最小化越区切换延迟的方法。 与当前无线站（STA）相关联的接入点（AP）或基站允许与STA的重关联所需的信息被传播给具有切换能力的相邻AP或基站。 当STA移动时，相邻AP或基站基于上下文来执行与STA的重关联。 当执行切换过程时，可以减少接收对应STA的上下文所花费的时间，使得可以实现快速切换。
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公开(公告)号：KR100448320B1
公开(公告)日：2004-09-14
申请号：KR1020040058944
申请日：2004-07-27
Applicant: 삼성전자주식회사 , 유니버시티 오브 매릴랜드 칼리지 팍
IPC: H04B7/26
CPC classification number: H04W36/0055 , H04W12/06 , H04W36/0016 , H04W36/0033 , H04W36/0038 , H04W36/08 , H04W40/00 , H04W48/16 , H04W48/20 , H04W84/045 , H04W84/12 , H04W84/18 , H04W88/08 , H04W92/20
Abstract: 본 발명은 무선망에서 핸드오프를 지원하기 위한 단말의 컨텍스트 정보를 프로액티브 캐싱 기법을 이용하여 단말의 인접 접속점들로 전파하는 방법 및 장치를 제안한다. 이를 위해 본 발명에서는 단말로부터의 접속 또는 재 접속 요청에 대해, 단말의 컨텍스트 정보를 하나 이상의 인접 접속점들로 전파하도록 한다. 여기서 인접 접속점들은 단말이 현재의 접속점으로부터 핸드오프하기에 적합한 접속점이다. 따라서 인접 접속점들은 단말의 핸드오프 상황이 발생하기 전에 필요한 정보들을 입수할 수 있어, 단말에 대한 빠른 핸드오프를 지원할 수 있다.
Abstract translation: 当在无线网络中执行越区切换时最小化越区切换延迟的方法。 与当前无线站（STA）相关联的接入点（AP）或基站允许与STA的重关联所需的信息被传播给具有切换能力的相邻AP或基站。 当STA移动时，相邻AP或基站基于上下文来执行与STA的重关联。 当执行切换过程时，可以减少接收对应STA的上下文所花费的时间，使得可以实现快速切换。
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公开(公告)号：KR1020040065189A
公开(公告)日：2004-07-21
申请号：KR1020040002779
申请日：2004-01-14
Applicant: 삼성전자주식회사 , 유니버시티 오브 매릴랜드 칼리지 팍
IPC: H04W16/00
CPC classification number: H04W12/04 , H04L9/0836 , H04L9/0844 , H04L63/062 , H04L63/0823 , H04L2209/80 , H04L2463/061 , H04W12/06 , H04W84/12 , H04W88/08
Abstract: PURPOSE: A high-speed roaming service method in a wireless network is provided to enable an authentication server to propagate security key information necessary for a roaming function of a mobile terminal to adjacent access points, in order to carry out a re-access process with the mobile terminal by a security key, thereby reducing time for roaming. CONSTITUTION: A mobile terminal and an AP_A obtain a PTK(Pairwise Transient Key) and an RK(Roam Key) by a PMK(Pairwise Master Key) supplied from an AAA server(901). The mobile terminal obtains a next PMK to be supplied to adjacent APs by using the RK(903), and transmits the obtained next PMK to adjacent APs(905,907). If the mobile terminal moves to an AP_B, the mobile terminal and the AP_B obtain a PTK and an RK(909). A security system is set between the mobile terminal and the AP_B. The AP_B obtains a next PMK to be supplied to next adjacent APs by using the obtained RK, and transmits the obtained next PMK to the adjacent APs(913-915).
Abstract translation: 目的：提供无线网络中的高速漫游服务方法，使认证服务器能够将移动终端的漫游功能所需的安全密钥信息传播到相邻接入点，以便执行重新访问过程， 移动终端通过安全密钥，从而减少漫游时间。 规定：移动终端和AP_A通过由AAA服务器（901）提供的PMK（成对主密钥）获得PTK（成对瞬态密钥）和RK（漫游密钥）。 移动终端通过使用RK（903）获得要提供给相邻AP的下一个PMK，并将获得的下一个PMK发送到相邻AP（905,907）。 如果移动终端移动到AP_B，则移动终端和AP_B获得PTK和RK（909）。 在移动终端和AP_B之间设置安全系统。 AP_B通过使用获得的RK获得要提供给下一个相邻AP的下一个PMK，并将获得的下一个PMK发送到相邻的AP（913-915）。
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134.发明授权
公开(公告)号：KR100438823B1
公开(公告)日：2004-07-05
申请号：KR1020010049034
申请日：2001-08-14
Applicant: 삼성전자주식회사
Inventor： 장경훈
IPC: H04B7/26
CPC classification number: H04W28/20 , H04L1/1642 , H04L1/1858 , H04L1/188 , H04L5/023 , H04W74/08
Abstract: A wireless data communication system and method using wireless transmission frame structure for increasing communication efficiency are provided. The wireless transmission frame includes a broadcast period, a downlink period, an uplink period, an acknowledgement period and a contention period so as to perform a wireless data communication between a network access toll center (10) and a plurality of stations (12,14,16). The acknowledgement period is a period in which a plurality of stations (12,14,16) send an acknowledgement signal confirming safe receipt of data transmitted from the network access toll center (10) to the network access toll center (10). Through the acknowledgement period, a network access toll center (10) can send data to each station (12,14,16) and check whether the data is completely transmitted to each station (12,14,16) in the same frame, thereby effectively performing real-time data service. Also, the allocation of a plurality of subcarrier channels to each station minimizes the resending of data because receipt of data is confirmed when at least one of the allocated subcarrier channels is completely transmitted from each station, even if the most part of the subcarrier channels are lost in a wireless interface.
Abstract translation: 提供了一种使用无线传输帧结构来提高通信效率的无线数据通信系统和方法。 无线传输帧包括广播时段，下行时段，上行时段，确认时段和争用时段，以在网络接入收费中心（10）和多个站（12,14）之间执行无线数据通信 ，16）。 确认周期是多个站（12,14,16）发送确认信号以确认从网络接入收费中心（10）向网络接入收费中心（10）发送的数据的安全接收的周期。 通过确认期，网络接入收费中心（10）可以向每个站（12,14,16）发送数据，并检查数据是否被完全发送到同一帧中的每个站（12,14,16），由此 有效地执行实时数据服务。 此外，由于当从每个站完全发送分配的子载波信道中的至少一个时，即使大多数子载波信道是完全发送的，数据的接收也被确认，所以多个子载波信道到每个站的分配最小化了数据的重新发送 失去了无线接口。 ＆lt;图像＆GT;
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公开(公告)号：KR1020040009928A
公开(公告)日：2004-01-31
申请号：KR1020020044304
申请日：2002-07-26
Applicant: 삼성전자주식회사
IPC: H04L1/00
CPC classification number: H04L65/608 , H04L1/007 , H04L1/1671 , H04L1/1809 , H04L1/1835 , H04L29/06027 , H04L47/10 , H04L47/2425 , H04L47/26 , H04L47/27 , H04L47/32 , H04L47/34 , H04L47/35
Abstract: PURPOSE: A method for generating a transmission control parameter and a method for auto selective retransmission according to a characteristic of frame are provided to support effectively an AV service by reflecting a characteristic of an AV frame and controlling the transmission control parameter. CONSTITUTION: A packet transmission control parameter generator(330) receives the class information(311) and the AV frame characteristic information(312) of an AV application(310). The packet transmission control parameter generator(330) receives the wireless channel state and buffer standby period information(321) from a media access control class(320). The packet transmission control parameter generator(330) outputs a transmission control parameter(322) by using the received information.
Abstract translation: 目的：提供一种根据帧的特性产生传输控制参数和自动选择重传的方法，以通过反映AV帧的特性并控制传输控制参数来有效地支持AV服务。 构成：分组传输控制参数发生器（330）接收AV应用（310）的类信息（311）和AV帧特征信息（312）。 分组传输控制参数发生器（330）从媒体接入控制类（320）接收无线信道状态和缓冲器待机期间信息（321）。 分组传输控制参数发生器（330）通过使用所接收的信息来输出传输控制参数（322）。
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Patent Agency Ranking
公开(公告)号：KR1020040004926A
公开(公告)日：2004-01-16
申请号：KR1020020039156
申请日：2002-07-06
Applicant: 삼성전자주식회사
IPC: H04L9/08
CPC classification number: H04W12/04 , H04L9/0833 , H04L63/065 , H04L63/068 , H04L63/083 , H04L2209/80 , H04L2463/062 , H04W84/12 , H04W84/18
Abstract: PURPOSE: An encoding method using a double key and a wireless LAN system using the same are provided to enhance the security by using a double key including the first and the second public keys. CONSTITUTION: A main wireless terminal for performing a key distribution function is selected from wireless terminals of N number forming an ad hoc group(21). The main wireless terminal generates the first public key by using a group password(22). The main wireless terminal generates the second public key which is used for transmitting dat between wireless terminals(24-26). The main wireless terminal encodes the second public key by using the first public key and transmits the second public key to the wireless terminals of N-1 number(27). Data are encoded by the second public key and the encoded data are transmitted to the wireless terminals of N number(28).
Abstract translation: 目的：提供使用双键的编码方法和使用其的无线LAN系统，以通过使用包括第一和第二公钥的双键增强安全性。 构成：从形成特设组（21）的N个号的无线终端中选择用于执行密钥分配功能的主无线终端。 主无线终端使用组密码（22）生成第一个公钥。 主无线终端产生用于在无线终端（24-26）之间传输数据的第二公钥。 主无线终端通过使用第一公钥对第二公钥进行编码，并将第二公钥发送到N-1号的无线终端（27）。 数据由第二公钥编码，编码数据被发送到N号（28）的无线终端。
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公开(公告)号：KR1020020066442A
公开(公告)日：2002-08-17
申请号：KR1020010006617
申请日：2001-02-10
Applicant: 삼성전자주식회사
IPC: H04L12/56
Abstract: PURPOSE: A method for transmitting a broadcasting message between a master and a slave in a wireless communication is provided to secure the reliability of transmission and enhance the efficiency of a master broadcasting packet assignment time by confirming whether the slave receives a broadcasting packet in the master when the broadcasting packet is transmitted from the master to the slave by wireless. CONSTITUTION: The first broadcasting packet is transmitted from a master and a slave among broadcasting packets in which broadcasting messages are divided by a packet unit(S100). If a transmission slot interval is ended, the master judges whether the salve receives the broadcasting packet transmitted from the master(S200). If the salve receives the broadcasting packet, the master transmits a next broadcasting packet to the slave in a next transmission slot interval(S600). If the next transmission slot interval is ended, the master judges whether the slave receives the next broadcasting packet in a next standby slot interval(S700). If the received broadcasting packet is different from the previous received broadcasting packet according to a sequence number value, the master judges whether the currently received broadcasting packet is a last broadcasting packet(S800). If the currently received broadcasting packet is the last broadcasting packet, the master stops the transmission of the broadcasting packet.
Abstract translation: 目的：提供一种在无线通信中在主机和从机之间发送广播消息的方法，以确保传输的可靠性，并通过确认从机是否在主机中接收到广播分组来提高主广播分组分配时间的效率 当广播分组通过无线从主机发送到从机时。 构成：在通过分组单元划分广播消息的广播分组中，从主机和从机发送第一广播分组（S100）。 如果发送时隙间隔结束，则主设备判断该接收者是否接收到从主设备发送的广播报文（S200）。 如果接收到广播分组，则主设备在下一个传输时隙间隔中向从设备发送下一个广播分组（S600）。 如果下一个传输时隙间隔结束，主机判断从机是否在下一个备用时隙间隔中接收下一个广播分组（S700）。 如果接收到的广播分组根据序列号值与先前接收到的广播分组不同，则主机判断当前接收的广播分组是否是最后的广播分组（S800）。 如果当前接收的广播分组是最后的广播分组，则主机停止广播分组的传输。
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