CAJ | 학술논문

在LTE网络与2G/3G互操作场景下，2G/3G HLR和EPC HSS中会存放同一用户的不同数据，为保持数据的一致性，大多数运营商选择采用融合HLR/HSS设备存储用户数据。为实现现网用户不换号使用LTE业务，需要将现网已有的大量2G/3G HLR全部升级为融合设备，工期较长且投资很大。各机构和厂家都提出了针对单用户进行迁移的过渡方案。本文将针对主要的3种过渡方案从方案原理、现网改造需求、存在问题等方面进行分析，给出部署建议。
재LTE망락여2G/3G호조작장경하，2G/3G HLR화EPC HSS중회존방동일용호적불동수거，위보지수거적일치성，대다수운영상선택채용융합HLR/HSS설비존저용호수거。위실현현망용호불환호사용LTE업무，수요장현망이유적대량2G/3G HLR전부승급위융합설비，공기교장차투자흔대。각궤구화엄가도제출료침대단용호진행천이적과도방안。본문장침대주요적3충과도방안종방안원리、현망개조수구、존재문제등방면진행분석，급출부서건의。
In order to keep the consistency of user data in LTE and GSM/UMTS network, most communication operators prefer store user data in converged HSS/HLR, but it will take much time in transforming all existing HLR to converged HSS/HLR for providing LTE service to subscribers with existing telephone number, it will be necessary to deploy transition solution of user data storage in order to meet the requirement of time to market. This article precisely analyzes three major transition solutions in different aspects and makes suggestions on deployment.