전송제어 파라미터 생성방법 및 프레임 특성에 따른선택적 자동 재전송 방법
    184.
    发明授权
    전송제어 파라미터 생성방법 및 프레임 특성에 따른선택적 자동 재전송 방법 失效
    根据分组特性生成传输控制参数和选择性重分配方法。

    公开(公告)号:KR100537499B1

    公开(公告)日:2005-12-19

    申请号:KR1020020044304

    申请日:2002-07-26

    Abstract: A method for generating packet-based transmission control parameters includes (a) receiving class information of an audio-video (AV) application and characteristic information of an AV packet, from the AV application, (b) receiving status information of a wireless channel and buffer storage time information of the AV packet, from a medium access control (MAC) layer, and (c) generating and outputting the packet-based transmission control parameters on the basis of the received information. In addition, a selective retransmission method includes (a) transmitting packets of an MPEG-2 frame in real-time, (b) checking for any transmission error after the transmission, and (c) if any transmission error is generated, retransmitting only packets of an I-frame. Therefore, it is possible to efficiently support AV service in wireless communication by dynamically controlling transmission control parameters according to a buffer status and by reflecting the characteristics of the AV frames.

    CSMA/CA 기반의 무선 랜상에서 수신 소비 전력제어 방법 및 장치
    185.
    发明公开
    CSMA/CA 기반의 무선 랜상에서 수신 소비 전력제어 방법 및 장치 有权
    用于控制基于CSMA / CA的无线局域网中的接收功率消耗的方法和装置,特别是与启用功率控制有关的功能,以便在双向实时数据通信服务被提供时最小化功耗

    公开(公告)号:KR1020050013468A

    公开(公告)日:2005-02-04

    申请号:KR1020030052132

    申请日:2003-07-28

    CPC classification number: H04W52/0245 Y02D70/142

    Abstract: PURPOSE: A method and a device for controlling a receiving power consumption in a wireless LAN based on CSMA/CA(Carrier Sense Multiple Access/Collision Avoidance) are provided to turn off power of the rest components except a minimum number of components necessary for stabilizing, thereby reducing power consumed during a medium sensing operation. CONSTITUTION: An RPC(Receive Power Controller) receives a PLCP(Physical Layer Convergence Protocol) and an MAC frame(50), and extracts a transmission rate and frame transmission section information from the received information(51), then determines a power control section by interpreting the extracted information(52). The RPC compares a receiving address of the MAC frame with a self address(53). If the compared addresses are different, the RPC converts power of a baseband layer and an RF layer into a low-power state(54). When the power is off, the RPC counts the power control section(55), and converts the low-power state into a normal state(56). The RPC stabilizes an operation of the RF layer by applying the power(57).

    Abstract translation: 目的:提供一种用于控制基于CSMA / CA(载波侦听多路访问/冲突避免)的无线LAN中的接收功率消耗的方法和设备,用于断开其余部件的功率,除了稳定所需的最小数量 从而减少在介质感测操作期间消耗的功率。 构成:RPC(接收功率控制器)接收PLCP(物理层汇聚协议)和MAC帧(50),从接收到的信息(51)中提取传输速率和帧发送部分信息,然后确定功率控制部 通过解释提取的信息(52)。 RPC将MAC帧的接收地址与自身地址进行比较(53)。 如果比较的地址不同,则RPC将基带层和RF层的功率转换为低功率状态(54)。 当电源关闭时,RPC对功率控制部分(55)进行计数,并将低功率状态转换为正常状态(56)。 RPC通过施加电力来稳定RF层的操作(57)。

    무선 근거리 통신망에서 고속 프레임의 전송 방법
    186.
    发明公开
    무선 근거리 통신망에서 고속 프레임의 전송 방법 无效
    用于在无线局域网中传输高速帧的方法,特别是与高速传输数据相关,并通过无线终端和接入点之间的传输速率的检测来防止数据丢失

    公开(公告)号:KR1020050013023A

    公开(公告)日:2005-02-02

    申请号:KR1020030051845

    申请日:2003-07-26

    Abstract: PURPOSE: A method for transmitting a high-speed frame in a wireless LAN is provided to relay a frame if a transmission rate gain can be obtained through a relay node, in case a transmission rate deteriorates, thereby effectively using wireless resources. CONSTITUTION: A system requests a path search process(400), and generates a reliable node request data frame to transmit the frame to the second wireless terminal(402). A wireless AP(Access Point) checks an optimum path(410). A data relay process is carried out(420). If data is transmitted through the first wireless terminal, the wireless AP configures a data frame to be transmitted to the second wireless terminal, and sends the configured data frame to the first wireless terminal(422). A response signal is generated, so that the data is transmitted to the wireless AP(426).

    Abstract translation: 目的:提供一种在无线局域网中发送高速帧的方法,用于在传输速率恶化的情况下通过中继节点获得传输速率增益,从而有效地使用无线资源来中继帧。 构成:系统请求路径搜索处理(400),并生成可靠的节点请求数据帧以将帧发送到第二无线终端(402)。 无线AP(接入点)检查最佳路径(410)。 执行数据中继处理(420)。 如果通过第一无线终端发送数据,则无线AP配置要发送到第二无线终端的数据帧,并将配置的数据帧发送到第一无线终端(422)。 产生响应信号,使得数据被发送到无线AP(426)。

    실시간 멀티미디어 데이터 생성율의 동적 제어방법 및 그장치
    187.
    发明公开
    실시간 멀티미디어 데이터 생성율의 동적 제어방법 및 그장치 无效
    用于动态控制实时多媒体数据生成速率的方法和装置

    公开(公告)号:KR1020040020639A

    公开(公告)日:2004-03-09

    申请号:KR1020020052289

    申请日:2002-08-31

    Abstract: PURPOSE: A method and apparatus for dynamically controlling a real time multimedia data generation rate are provided to be quickly adopted for a radio channel state and effectively use resources by detecting characteristics of a radio channel and reflecting the detected result for a multimedia data generation rate. CONSTITUTION: A data generator generates multimedia data according to a data generation rate and transmits it to a mobile terminal or a wireless access node(AP) through an RTP(Real Time Protocol)(310). An RTCP(Real-time Transport Control Protocol) receives information on a transmission buffer transmitting multimedia and multimedia data loss rate from an MAC(Medium Access Control) layer(320). A generation rate of the multimedia data is calculated and transmitted to the data generator(330). The data generator generates multimedia data on a real time basis according to the received multimedia data generation rate and transmits it to the RTP(340).

    Abstract translation: 目的:提供一种用于动态控制实时多媒体数据生成速率的方法和装置,用于无线电信道状态快速采用,并通过检测无线电信道的特性并反映多媒体数据生成速率的检测结果有效地使用资源。 构成:数据发生器根据数据生成速率生成多媒体数据,并通过RTP(实时协议)(310)将其发送到移动终端或无线接入节点(AP)。 RTCP(实时传输控制协议)从MAC(媒体访问控制)层(320)接收关于传输多媒体和多媒体数据丢失率的传输缓冲区的信息。 计算多媒体数据的生成速率并将其发送到数据生成器(330)。 数据发生器根据接收到的多媒体数据生成速率实时生成多媒体数据,并将其发送到RTP(340)。

    국소 영역과 국소 이동제어장치를 형성시키는 방법 및 그장치
    188.
    发明公开
    국소 영역과 국소 이동제어장치를 형성시키는 방법 및 그장치 有权
    用于形成本地移动性域和本地移动代理的方法和设备及其设备

    公开(公告)号:KR1020030010850A

    公开(公告)日:2003-02-06

    申请号:KR1020010045485

    申请日:2001-07-27

    Abstract: PURPOSE: A method and device for forming a local mobility domain and a local mobility agent and an apparatus therefor are provided to set the local mobility domain and the local mobility agent according to the motion of a mobile terminal. CONSTITUTION: A router(1201) has a hop-count setup unit(12011) for receiving a hop-count and storing the received hop-count, a local mobility domain list generating unit(12012) for setting routers within a range which is less than the set hop-count value as a local mobility domain, generating a list of the routers within the local mobility domain, and storing the generated list. The router(1201) has an address management unit(12013) for receiving a region external address and a local external address from a mobile terminal(1202) and storing the region external address and the local external address in case that the address management unit(12013) is set up as a local mobility agent. The mobile terminal(1202) has a local mobility agent management unit(12021) for determining whether a connected access router is set up as the local mobility agent, receiving a list of the access router determined as the local mobility agent, and storing the received list, and an address registering unit(12022) for registering the region external address and the local external address to a home agent and the local mobility agent. The mobile terminal(1202) has a local mobility control service time adjusting unit(12023) for setting the currently connected access router as a new local mobility agent when a binding valid time is exceeded and the number of binding update messages exceeds a predetermined certain value.

    Abstract translation: 目的:提供一种用于形成本地移动性域和本地移动性代理的方法和设备及其装置,用于根据移动终端的运动来设置本地移动性域和本地移动性代理。 构成:路由器(1201)具有用于接收跳数并且存储所接收的跳数的跳数计数设置单元(12011),用于在较小的范围内设置路由器的本地移动性域列表生成单元(12012) 比设定的跳数计数值作为本地移动性域,生成本地移动性域内的路由器的列表,并存储所生成的列表。 路由器(1201)具有用于从移动终端(1202)接收区域外部地址和本地外部地址的地址管理单元(12013),并且在地址管理单元(1201)存储区域外部地址和本地外部地址的情况下, 12013)被设置为本地移动代理。 移动终端(1202)具有本地移动代理管理单元(12021),用于确定连接的接入路由器是否被设置为本地移动代理,接收确定为本地移动代理的接入路由器的列表,并存储接收的 列表,以及用于将归属代理和本地移动代理注册该区域外部地址和本地外部地址的地址注册单元(12022)。 移动终端(1202)具有本地移动性控制服务时间调整单元(12023),用于当超过绑定有效时间并且绑定更新消息的数量超过预定的特定值时,将当前连接的接入路由器设置为新的本地移动代理 。

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