泛在电力物联网典型场景无线网络规划

doi:10.11959/j.issn.1000-0801.2019282

Abstract

Abstract:

A SG-IoT wireless network planning method was proposed,the characteristics and differences of multiple wireless technology systems were analyzed in terms of coverage,capacity,networking mode,etc.,and its adaptability to different SG-IoT applications was demonstrated.A basis for the SG-IoT and comprehensively support the construction of the SG-IoT was provided.

Key words: SG-IoT, network planning, private network, LPWA, 5G

CLC Number:

TP391

Yue MA,Bingsong LI,Quangui HU. Wireless network planning of typical SG-IoT[J]. Telecommunications Science, 2019, 35(12): 122-130.

Figures/Tables 14

References 18

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对比项	230 MHz无线专网	1 800 MHz无线专网	5G	NB-IoT	LoRa
最大连接损耗/dB	144	144	164	164	157

传播模型名称	适用频段/MHz	适用技术
Okumura-Hata	150～1 920	230 MHz无线专网、LoRa
Cost-231Hata	1 500～2 000	1 800 MHz无线专网
3GPP Uma/ Rma	500～6 000	5G

公式项	含义	取值
f	载频/MHz	230、470、1 800
hb	基站天线挂高/m	35
hm	终端天线挂高/m	1.5
d	基站到终端距离/km	待计算数据
C	调整因子（无单位）	0～3

公式项	含义	取值
f_c	中心频率/GHz	2.6
h_BS	基站的实际高度/m	35
h_UT	UE的实际高度/m	1.5
d_2D	基站与UE的地面水平距离/m	待计算数据
d_3D	基站与UE的空间距离/m	待计算数据
W	街道宽度/m	20
h	场景建筑物平均高度/m	20

网络制式	覆盖半径/km
网络制式	密集市区	市区	郊区	农村
230 MHz专网	1.58	2.05	2.86	13.38
1 800 MHz专网	0.81	0.98	1.09	1.14
LoRa	0.92	2.04	2.33	10.74
NB-IoT	2.01	2.61	3.64	22.49
5G	0.60	0.75	1.36	1.65

Wireless network planning of typical SG-IoT

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项目	依据及计算方法
业务类型	采集频率依据、单链路带宽需求等依据泛在电力物联网中的业务上下行峰值速率要求
业务名称
采集频率
带宽需求
带宽需求取定/(kbit·s^-1)	kbit/s
现有业务终端密度/(个·km^-2)	根据目标覆盖区域的实际终端分布进行测算（N个/km2）
满足期末业务增长系数	考虑电力业务的增长，需要根据电力业务发展情况给出增长系数（a%）
满足期末业务终端密度/(个·km^-2)	(1+a%)×N
容量需求MAX/(Mbit·(s·km²)^-1)	∑(1+a%)×M×N
业务并发系数	根据业务并发情况进行测算，给出业务同时发生的可能性（b%）
综合容量需求预测/(Mbit·(s·km²)^-1)	∑(1+a%)×M×N×b%

网络制式	单站峰值速率
230 MHz专网（7 MHz载频）	14 Mbit/s
1 800 MHz专网（5 MHz载频）	11 Mbit/s
LoRa	37.5 kbit/s
NB-IoT	250 kbit/s
5G	1 Gbit/s

对比项	覆盖指标（95%概率）		覆盖指标（90%概率）		小区边缘用户上行接入速率不低于/(kbit·s^-1)
对比项	A+、A类地区	B、C类地区	A+、A类地区	B、C类地区	小区边缘用户上行接入速率不低于/(kbit·s^-1)
参考信号接收功率
	-115	-115	—	—
RSRP门限/dBm					9.6
信干噪比SINR门限/dB	—	—	-3	-3

网络制式	组网方式	抗干扰机制
230 MHz专网（7 MHz载频）)	同频组网	设置边缘保护频带
1 800 MHz专网（5 MHz载频）	同频组网	设置边缘保护频带
LoRa	同频组网	动态跳频
5G	异频组网	异频组网可有效消除同频干扰

网络制式	组网形式	最大连接损耗/dB	覆盖距离（市区）/km	峰值速率
230 MHz专网	蜂窝网络	144	2.05	14 Mbit/s
1 800 MHz专网	蜂窝网络	144	0.98	11 Mbit/s
LoRa	非蜂窝网络	157	2.04	37.5 kbit/s
NB-IoT	蜂窝网络	164	2.61	250 kbit/s
5G	蜂窝网络	164	0.75	1 Gbit/s

网络制式	覆盖策略	典型应用场景
230 MHz专网	采集类广度覆盖，对控制类区域针对性加强覆盖	三遥、用电信息采集等
1 800 MHz专网	采集类广度覆盖，对控制类区域针对性加强覆盖	三遥、用电信息采集等
LoRa	深度覆盖	室内型采集终端
NB-IoT	深度覆盖	室内型采集终端、在线式电力资产实物ID等
5G eMBB	针对性覆盖	高清视频监控、移动作业等大带宽业务
5G uRLLC	针对性覆盖	三遥、馈线自动化等控制类业务
5G mMTC	针对性覆盖	在线式电力资产实物ID等大连接业务

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