公开(公告)号：KR20120069809A

公开(公告)日：2012-06-29

申请号：KR20100131114

申请日：2010-12-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM EUN KYUNG ,  YOON CHUL SIK ,  LEE JIN HO ,  KIM YOUNG HAN

IPC: H04W28/02 ,  H04L1/18 ,  H04L12/801 ,  H04W4/06

CPC classification number: H04W28/0236 ,  H04L1/1854 ,  H04L1/1887 ,  H04L47/14 ,  H04W4/06 ,  H04W28/0242

Abstract: PURPOSE: A method and an apparatus for selectively restoring lost packets in a mobile worldwide interoperability for microwave access(WiMax) are provided to supply seamless video services and keep the existing quality of images. CONSTITUTION: An access control router(ACR) sets the priority of packets based on received priority information and includes a priority manager and a multicast broadcast service(MBS) distributed data path function. The priority manager manages and stores the priority information. The MBS distributed data path function transmits the priority information and the sequence information of the packets to a radio access station(RAS). The RAS includes a priority analyzer and an RAS buffering controller. The priority analyzer confirms the loss of packets received from the ACR and determines the re-reception of lost packets according to the priority information.

Abstract translation: 目的：提供一种用于选择性地恢复移动全球微波接入互操作性（WiMax）中的丢失分组的方法和装置，以提供无缝视频服务并保持图像的现有质量。 规定：接入控制路由器（ACR）根据接收到的优先级信息设置报文的优先级，并包括优先级管理器和组播广播业务（MBS）分布式数据路径功能。 优先级管理器管理和存储优先级信息。 MBS分布式数据路径功能将分组的优先级信息和序列信息发送到无线接入站（RAS）。 RAS包括优先级分析器和RAS缓冲控制器。 优先级分析器确认从ACR接收到的分组丢失，并根据优先级信息确定丢失分组的重新接收。