公开(公告)号：KR100924309B1

公开(公告)日：2009-11-02

申请号：KR20090049438

申请日：2009-06-04

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： PARK SUNG JOO ,  LEE SEUK PIL

IPC: H04L12/28 ,  H04L12/20

CPC classification number: H04L47/2416 ,  H04L65/602 ,  H04L65/608

Abstract: PURPOSE: A quality-adaptive multimedia data streaming method and a system thereof are provided to off the improved service quality to a user as improving the stability of a network. CONSTITUTION: A butter state determining module(130) calculates a presumptive value of the data amount buffered in a buffer(210) of a client terminal(200), and determines the buffer state of a client terminal at a specific time. A transfer rate calculating module(150) calculates the average transfer rate of TCP traffic through feedbag message information, and calculates the transfer rate of a multimedia data stream. A network state determining module(140) determines the network state through the feedbag message information. A quality-adaptive module(160) controls the number of activated multimedia data frames.

Abstract translation: 目的：提供一种质量自适应的多媒体数据流传输方法及其系统，以提高网络的稳定性，从而将改善的服务质量提升给用户。 构成：黄油状态确定模块（130）计算缓冲在客户终端（200）的缓冲器（210）中的数据量的推定值，并且确定客户终端在特定时间的缓冲状态。 传输速率计算模块（150）通过馈送消息信息计算TCP流量的平均传输速率，并计算多媒体数据流的传输速率。 网络状态确定模块（140）通过馈送消息信息确定网络状态。 质量自适应模块（160）控制激活的多媒体数据帧的数量。

公开(公告)号：KR100931376B1

公开(公告)日：2009-12-11

申请号：KR20090042815

申请日：2009-05-15

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： PARK SUNG JOO ,  LEE SEUK PIL

IPC: H04L12/851 ,  H04L1/20 ,  H04L29/06

CPC classification number: H04L47/24 ,  H04L43/0829 ,  H04L47/32

Abstract: PURPOSE: A control method and a control system for transmitting a network adaptive data stream are provided to offer an improved QoS by previously eliminating the data of a lower priority in an application layer. CONSTITUTION: The control method for transmitting a network adaptive data stream includes the steps of: calculating total packet loss rate in a determined period; identifying a priority and type of a created transmission-predetermined data by parsing the transmission-predetermined data; calculating a packet elimination rate from the transmission-predetermined data of a lower priority by using the total packet loss rate; filtering the transmission-predetermined data by removing a part of the transmission-predetermined data according to the packet elimination rate; and mapping the filtered transmission-predetermined data in each access category according to their priority.

Abstract translation: 目的：提供一种用于发送网络自适应数据流的控制方法和控制系统，以通过先前消除应用层中较低优先级的数据来提供改进的QoS。 构成：用于发送网络自适应数据流的控制方法包括以下步骤：在确定的周期内计算总丢包率; 通过解析发送预定数据来识别创建的传输预定数据的优先级和类型; 通过使用总分组丢失率从较低优先级的发送预定数据计算分组消除率; 通过根据分组消除率去除发送预定数据的一部分来过滤发送预定数据; 并根据其优先级将每个访问类别中的经滤波的传输预定数据映射。

公开(公告)号：KR100931375B1

公开(公告)日：2009-12-11

申请号：KR20090042814

申请日：2009-05-15

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： PARK SUNG JOO ,  LEE SEUK PIL

IPC: H04L12/811 ,  H04L1/20 ,  H04L29/06

CPC classification number: H04L47/2416 ,  H04L43/0829 ,  H04L65/608

Abstract: PURPOSE: A data stream rate control method and a data streaming server using an improved parameter calculating method are provided to allow an operation friendly with a competing TCP traffic, by calculating a transmission rate of TCP more precisely, and then controlling a transmission rate of a transmitted video stream more efficiently. CONSTITUTION: The data streaming server includes: an encoder(112), encoding the multimedia data for the streaming service; a communication module(113), transmitting an encoded data stream, or receiving a RTCP control message; and a network state deciding module(114), calculating a packet loss rate from the RTCP control message, and then estimating a network state by using the calculated packet loss.

Abstract translation: 目的：提供一种使用改进的参数计算方法的数据流速率控制方法和数据流服务器，通过更准确地计算TCP的传输速率，然后控制传输速率 传输视频流更有效率。 构成：数据流服务器包括：编码器（112），用于对流媒体服务的多媒体数据进行编码; 通信模块（113），发送编码数据流，或接收RTCP控制消息; 以及网络状态决定模块（114），从RTCP控制消息计算分组丢失率，然后使用计算出的分组丢失来估计网络状态。