CAJ | 학술논문

首先简要介绍了3 GPP中基于LTE的物联网体系结构，进而分析了物联网中存在的过载问题，然后重点研究了接入类别限制ACB( Access Class Barring)与扩展访问限制EAB( Extended Access Barring)，最后针对这两种机制的不足，提出了改进限制方案IBS(Improved Barring Scheme)机制，该机制通过接收端向发送端发送错误重传请求允许，来避免过载情况中数据频繁重发的问题。
수선간요개소료3 GPP중기우LTE적물련망체계결구，진이분석료물련망중존재적과재문제，연후중점연구료접입유별한제ACB( Access Class Barring)여확전방문한제EAB( Extended Access Barring)，최후침대저량충궤제적불족，제출료개진한제방안IBS(Improved Barring Scheme)궤제，해궤제통과접수단향발송단발송착오중전청구윤허，래피면과재정황중수거빈번중발적문제。
This paper first describes the architecture of M2M based on LTE technology in 3GPP,and dis-cusses the network overload problems in IoT. Then this paper focuses on ACB( Access Class Barring) and ECB( Extended Access Barring) . And finally, aiming at the remedy of these two shortages,IBS( Improved Barring Scheme) is proposed. This mechanism may avoid frequent data-retransmission problem in over-load situation by sending error retransmission request permission packets from the receiver to the sender.