基于5GtoB定制网的数据分流方案研究

doi:10.11959/j.issn.1000-0801.2022162

摘要/Abstract

摘要：

随着5G网络的不断演进，面向行业用户的解决方案也更加灵活，数据分流可以很好地满足客户对于数据不出园区、本地卸载、低时延等迫切需求。介绍了5G网络中数据分流能力的需求背景和分流技术原理，同时结合运营商现网实际部署情况，论述了基于多数据网络名称（data network name，DNN）分流和基于上行链路分类器（uplink classifier，UL CL）分流两大类数据分流方案的应用场景、技术实现，并对不同方案的优点和局限性进行了对比分析，最后通过实际案例验证了方案的可行性。

关键词: 5GtoB, 数据分流, DNN, ULCL

Abstract:

With the continuous evolution of 5G network, 5GtoB solution for industrial users is also more flexible.Data offloading can well meet the urgent needs of customers for data not leaving the park, local unloading, local support, low delay and so on.The demand background of data offloading capability in 5G network and the relevant principles of diversion technology were introduced.At the same time, combined with the actual deployment of operators' existing network, the application scenarios and technical implementation of two kinds of data offloading schemes based on multi data network name (DNN) and uplink classifier (UL CL) were expounded, and the advantages and limitations of different schemes were compared and analyzed.Finally, the feasibility of the scheme was verified by an actual case.

Key words: 5GtoB, data offloading, DNN, UL CL

中图分类号:

TP393

曹亚平, 孙颖, 张会肖. 基于5GtoB定制网的数据分流方案研究[J]. 电信科学, 2022, 38(9): 161-168.

Yaping CAO, Ying SUN, Huixiao ZHANG. Research on 5GtoB customized network based data offloading scheme[J]. Telecommunications Science, 2022, 38(9): 161-168.

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分流方式	原理	优点	缺点
多DNN分流	为每位客户定制一个DNN；	实现简单，方案成熟，可满足	无法同时访问内网和公网；
	不同客户在UPF N6口通过DNN绑定	大多数客户需求	需要手工切换DNN
	VPN方式实现分流
基于定制 DNN 的	为每位客户定制一个DNN；	可同时访问内网和公网；	需要手工切换DNN；
UL CL分流	同一客户的数据流一部分通过DNAI绑定	业务策略灵活可定制；	漫游场景下时延较高
	UPF N6口VPN到达客户内网，另一部	厂商技术限制较小
	分通过N9至中心UPF然后到Internet
基于专用公共 DNN	使用数据分流业务的所有客户均使用已规	可同时访问内网和公网；	终端互访受限；
的UL CL分流	划的专用公共DNN；	实现简单	客户二次认证功能受限；
	UL CL数据分流原理同上		厂商能力不完善
基于 toC 默认 DNN	客户使用toC大网默认DNN；	可同时访问内网和公网；	存在地址冲突问题；
的UL CL分流	UL CL数据分流原理同上	实现简单；	客户二次认证功能受限；
		无须切换DNN，客户感知好	厂商能力不完善