蜂窝物联网业务特点与网络建设需求匹配模型探讨

doi:10.11959/j.issn.2096-3750.2017.00033

Abstract

Abstract:

On the one hand,the Internet of Things brings new opportunities for operators.On the other hand,it also poses a serious challenge to the operators' networks.In order to solve the problem that the development of Internet of Things (IoT) matches the network construction,the business characteristics of cellular Internet of Things are sorted out through the collection of external information and internal research,and it builds a matching model between cellular Internet of Things business characteristics and network construction needs,which provides input for network construction.

Key words: cellular Internet of Things, features of network services, model

CLC Number:

TN915

Er-ling ZHOU,Yun LU,Hui XUE,Xing-hua ZHUANG. Research on the matching model of IoT features and network needs[J]. Chinese Journal on Internet of Things, 2017, 1(3): 60-67.

Figures/Tables 19

References 6

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MTC应用特性	说明
Low Mobility	低移动性
Time Controlled	业务和时间相关，如抄表
Time Tolerant	对时间不敏感，可以容许适当延迟
PS Only	只通过PS域提供业务
Online Small Data Transmission	永远在线的少量数据传输
Offline Small Data Transmission	在少量数据传输之外的时间，终端可以去激活
MO Only	由终端发起业务
Infrequent MT	网络偶尔会发起业务(push)
MTC Monitoring	监控终端状态
Offline Indication	MTC Server感知终端离线
Jamming Indication	MTC Server感知终端被干扰
Priority Alarm Message(PAM)	网络需要保证 PAM 消息优先传送
Extra Low Power Consumption	终端低功耗保证
Secure Connection	终端和服务器之间安全的连接
Location Specific Trigger	网络根据位置触发终端发起业务
Group Based MTC Features	针对群组管理的特性，如群组QoS等

业务/网络服务	数据流量需求	QoS需求	移动性需求	能力开放需求
移动视频监控	大	带宽要求高	有	低
智能抄表	较大	BE	无	拥塞控制、时间控制等优化
一般监控	较小，但交互比较频繁	BE	无	针对小数据量、低移动性的优化
突发报警	较小	实时性要求高	有	低
移动支付	较小	实时性要求高	有	鉴权等安全性方面能力

业务特性	总结
应用场景	双50%：室外应用个数占比超过50%，终端接入规模占比超过50%
覆盖	双50%：超过50%的应用和超过50%的接入终端在室外，对网络的广度覆盖要求较高
移动性	双70%：超过70%的应用和超过70%的接入终端均保持不动（或基本不动），契合NB的特点
单次传输的数据量	双60%：超过60%的应用和超过60%的接入终端单次传输的数据量均较小，契合窄带物联网的特点
时延	不匹配：虽然超过一半的应用类型对时延不敏感，但超过60%的接入终端对时延敏感
功耗	功耗低：终端模组功耗要求低，要求寿命超过1年的占比超过50%，契合窄带物联网的特点

网络需求	个人消费类	智能家具类	智慧城市类	垂直行业类	车联网
网络优选	NB网络-71.7%	NB网络-67.8%	NB网络-75%	NB网络-97%	NB网络-50%
	eMTC网络-15.6%	4G网络-32.2%	4G网络-25%	4G网络-3%	4G网络-50%
	4G网络-12.7%
覆盖需求	覆盖需求与人类似，穿一堵墙即可满足需求，覆盖区域需求主要集中在城区	至少穿一堵墙，覆盖区域需求主要集中在城区	要求较高，智能抄表类应用需穿 3 堵墙，覆盖分布区域包括城区、乡镇和特殊场景	至少穿一堵墙，覆盖分布区域包括城区、乡镇和特殊场景	主要应用在室外，覆盖区域需求主要集中在城区
容量	需求较小，在规划期内不做重点考虑	需求较小，对网络容量影响较小	应用流量较小，在规划期内不做重点考虑	应用流量较小，在规划期内不做重点考虑	应用流量较小，在规划期内不做重点考虑
质量和功能要求	计费方式可与人资源共享，采用共享流量池模式计费	对网络时延敏感，计费方式可与人流量共享，采用流量资源池模式	计费模式多样化，存在多种计费模式	计费模式多样化，存在多种计费模式	计费模式主要以后向流量计费为主

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Research on the matching model of IoT features and network needs

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