摘要
移动开放联盟(Open Mobile Alliance,OMA)和第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)没有对移动多媒体广播业务的漫游问题进行深入分析,所有业务鉴权和订购都回到归属地,会延长传输时间,增加额外开销,同时影响用户体验。该文对漫游业务流程进行了优化,通过将密钥信息和订购信息缓存在拜访地,缩短了信令的传输时间,改善了用户体验,同时设置缓存失效算法,来限制用户数据的存储空间。通过计算和分析可以看到,新的漫游管理方法有效提高了传输效率,在性能上比原方案有了较大的改进。
Research on roaming management is a very important part for mobile multimedia broadcasting services. However, both OMA （Open Mobile Alliance） and 3GPP （3rd Generation Partnership Project） just give a brief description without further study, all of the signaling for authentication and subscription returning to the home server,which prolongs the transmission time and adds the cost, so the quality of experience may get worse. This paper provides a new approach to optimize the roaming service flow and set the cache on the visiting server to store the keys and subscription information. This approach shortens the transmission time and improves users＇ experience. The calculation and analysis demonstrate that the new approach for roaming management increases the transmission efficiency and makes much better improvement on performance than the existing approach.
出处
《电子与信息学报》
EI
CSCD
北大核心
2008年第10期2402-2406,共5页
Journal of Electronics & Information Technology
基金
国家杰出青年科学基金(60525110)
国家973计划项目(2007CB307100，007CB307103)
新世纪优秀人才支持计划(NCET-04-0111)
电子信息产业发展基金资助课题
关键词
移动多媒体广播
漫游
业务管理
Mobile multimedia broadcasting
Roaming
Service management
