摘要
扩展现实(XR)业务引入5G仍面临业务识别和保障、网络接口开放、头显终端不成熟等诸多挑战。研究了XR业务的特征和分类,并提出智能优先比特率(Smart PBR)方案和无线接入网(RAN)分组时延预算(PDB)协同调度方案。Smart PBR方案可为XR业务提供带宽确定性保障。RAN PDB协同调度方案可使小区中满足PDB要求的报文比例显著增加,大大提高用户体验质量。本研究对推动XR业务在5G网络中部署有一定的指导意义。
Extended reality(XR)services in the 5G network still face many challenges such as service identification and guarantee,network in⁃terface openness,and immature head display terminals.The characters and classification of XR services are discussed,and the Smart PBR and radio access network(RAN)packet delay budget(PDB)collaborative scheduling schemes are proposed.The Smart PBR scheme can pro⁃vide bandwidth deterministic guarantee for XR services.The RAN PDB collaborative scheduling scheme can significantly increase the propor⁃tion of packets that meet PDB requirements in the cell,greatly improving the quality of experience.This study has certain guiding signifi⁃cance for promoting the deployment of XR services in 5G networks.
作者
王新台
袁知贵
WANG Xintai;YUAN Zhigui(ZTE Corporation,Shenzhen 518057,China)
出处
《中兴通讯技术》
2023年第3期64-72,共9页
ZTE Technology Journal
关键词
业务模型
小区容量
业务特征
业务识别与保障
智能优先比特率
分组时延预算协同调度
service model
cell capacity
service character
service identification and guarantee
intelligent prioritised bit rate
packet delay bud⁃get collaborative scheduling
