配电网5G通信架构及其时延可靠性研究

doi:10.11959/j.issn.1000-0801.2024082

Abstract

Abstract:

The core value of 5G in the field of digital distribution network is to give play to the technical advantages of 5G in ultra-high reliability and low latency, and provide high reliability and low latency communication for the control related business of distribution network.In order to provide a systematic theoretical analysis scheme for the latency and reliability of 5G communication deployment applications in the distribution network, a typical architecture of 5G communication in the distribution network in combination with digital distribution network services was given, the latency model for 5G communication in the distribution network was deeply analyzed.The end-to-end latency analysis for 5G frame structures of four operators in China was conducted with 5G reliability values of 3GPP Rel-15 and Rel-16 through 5G link level simulation.At last, a joint analysis method of time latency and reliability of 5G communication in distribution network was proposed.

Key words: 5G, digital distribution network, latency, reliability, URLLC

CLC Number:

TN915.85

Haiyang WANG, Yudong WANG, Han LIU, Haipeng SUN, Jin YANG, Zhenghao LI. Research on 5G communication architecture of distribution network and its latency with reliability[J]. Telecommunications Science, 2024, 40(3): 162-173.

Figures/Tables 13

References 18

[1]	颜湘武, 王晨光, 贾焦心 ,等. 基于小交流信号的低压配电网中分布式光伏辅助调压控制策略[J]. 中国电力, 2022,55(5): 134-142.
	YAN X W , WANG C G , JIA J X ,et al. Distributed PV auxiliary voltage control strategy in low voltage distribution network based on small AC signals[J]. Electric Power, 2022,55(5): 134-142.
[2]	黄子硕, 刘营芳, 张新鹤 ,等. 乡村配电网供能范围与负荷调控技术协同优化方法[J]. 中国电力, 2022,55(9): 46-55.
	HUANG Z S , LIU Y F , ZHANG X H ,et al. A synergic optimization method for service scope and load management technologies of rural power distribution network[J]. Electric Power, 2022,55(9): 46-55.
[3]	3GPP. Study on physical layer enhancements for NR ultrareliable and low latency case (URLLC):TR 38.82[R]. 2019.
[4]	熊轲, 张锐晨, 王蕊 ,等. 5G助力电力物联网:网络架构与关键技术[J]. 中国电力, 2021,54(3): 99-108.
	XIONG K , ZHANG R C , WANG R ,et al. 5G-enabled electricity Internet of things:the network architecture and key technologies[J]. Electric Power, 2021,54(3): 99-108.
[5]	张丽, 郝佳恺 . 5G网络切片电力通信业务与测试技术研究[J]. 电力信息与通信技术, 2022,20(5): 74-79.
	ZHANG L , HAO J K . Research on 5G network slicing technology in power communication service and testing[J]. Electric Power Information and Communication Technology, 2022,20(5): 74-79.
[6]	高厚磊, 徐彬, 向珉江 ,等. 5G通信自同步配网差动保护研究与应用[J]. 电力系统保护与控制, 2021,49(7): 1-9.
	GAO H L , XU B , XIANG M J ,et al. Research and application of self-synchronized differential protection for distribution networks using 5G as the communication channel[J]. Power System Protection and Control, 2021,49(7): 1-9.
[7]	宋志伟, 马天祥, 沈宏亮 ,等. 基于5G通信的智能分布式配电保护技术研究与应用[J]. 供用电, 2021,38(2): 6-11,18.
	SONG Z W , MA T X , SHEN H L ,et al. Research and application of intelligent distributed distribution protection technology based on 5G communication[J]. Distribution ＆ Utilization, 2021,38(2): 6-11,18.
[8]	李娜, 杨振亿, 曾杰 ,等. 基于5G的智能配电网业务场景应用分析[J]. 湖南电力, 2022,42(2): 98-104.
	LI N , YANG Z Y , ZENG J ,et al. Analysis of smart distribution network business scenario application based on 5G[J]. Hunan Electric Power, 2022,42(2): 98-104.
[9]	徐群, 程琳琳, 孟建 ,等. 5G在智能电网的应用研究[J]. 信息通信技术, 2022,16(4): 55-62.
	XU Q , CHENG L L , MENG J ,et al. 5G technology applications in smart grid[J]. Information and Communications Technologies, 2022,16(4): 55-62.
[10]	3GPP. Physical layer procedures for data:TS 38.214[R]. 2020.
[11]	许洪强, 尚学伟, 张令涛 ,等. 大电网调控系统业务中台设计与研究[J]. 电网技术, 2022,46(6): 2222-2230.
	XU H Q , SHANG X W , ZHANG L T ,et al. Design of business middle platform of bulk power grid dispatch and control system[J]. Power System Technology, 2022,46(6): 2222-2230.
[12]	国家能源局. 国能安全〔2015〕36号发电厂电力监控系统安全防护方案[Z]. 2015.
	National Energy Administration. 36 power plant power monitoring system security protection scheme[Z]. 2015.
[13]	窦开明 . 配电网WAMS通信规约及组网技术研究[D]. 合肥:合肥工业大学, 2019.
	DOU K M . Research on Communication Protocol and Network Technology of Distribution WAMS Network[D]. Hefei:Hefei University of Technology, 2019.
[14]	中国移动. 中国移动切片分组网(SPN)设备技术规范V2[S]. 2020.
	China Mobile. Technical specification for China Mobile sliced packet network (SPN) equipment V2[S]. 2020.
[15]	JI H , PARK S , YEO J ,et al. Ultra-reliable and low-latency communications in 5G downlink:physical layer aspects[J]. IEEE Wireless Communications, 2018,25(3): 124-130.
[16]	JANG H , KIM J , YOO W ,et al. URLLC mode optimal resource allocation to support HARQ in 5G wireless networks[J]. IEEE Access, 2020,8: 126797-126804.
[17]	LE T K , SALIM U , KALTENBERGER F . Enhancing URLLC uplink configured-grant transmissions[C]// Proceedings of the 2021 IEEE 93rd Vehicular Technology Conference (VTC2021Spring). Piscataway:IEEE Press, 2021: 1-5.
[18]	3GPP. URLLC system level simulation assumptions:R1166398[S]. 2016.

Metrics

Recommended 0

No Suggested Reading articles found!

配电网典型涉控业务	综合带宽业务带宽速率需求	时延需求	可靠性要求
分布式能源调控控制类	≥2 Mbit/s	主站-终端通信时延≤1 s	99.999%
配电自动化“三遥”	≥19.2 kbit/s	主站-终端通信时延≤2 s	99.999%
分布式馈线自动化	≥2 Mbit/s	终端-终端通信时延速动型：≤20 ms缓动型：≤1 s	99.999%
精准负荷控制	48.1 kbit/s～1.13 Mbit/s	控制主（子）站-终端时延≤50 ms	99.999%
配电网差动保护	≥2 Mbit/s	终端-终端通信时延＜15 ms	99.999%
配电网微型同步相量测量PMU	＞10 Mbit/s	终端-主站≤50 ms	99.999%

端到端承载方案	切片形式	网络正常情况下单设备最高时延/μs		网络拥塞情况下单设备平均时延（高优先级业务）/μs
端到端承载方案	切片形式	核心设备	接入汇聚设备	核心设备	接入汇聚设备
FlexE+VPN QoS	FlexE之间硬切片，FlexE之内软切片	30	20	50	50
FlexE交叉	FlexE之间硬切片，FlexE之内硬切片	10	3	10	3

5G频段	空口传输次数/次	空口上行时延（免调度）均值/ms	空口下行时延均值/ms	承载网时延/ms	核心网时延/ms
中国移动2.6 GHz TDD	1	2.3	2.9	1.5	0.6
	2	7.25	7.75	1.5	0.6
	3	12.2	12.6	1.5	0.6
中国电信/中国联通3.5 GHz	1	1.3	1.95	1.5	0.6
TDD	2	3.75	4.3	1.5	0.6
	3	6.2	6.65	1.5	0.6
中国广电700 MHz/中国电信/	1	1	3	1.5	0.6
中国联通2 100 MHz FDD	2	5	7	1.5	0.6
	3	9	11	1.5	0.6
注：根据中兴通讯典型实测数据，在64 Gbit/s吞吐量情况下，UPF转发时延为0.6 ms。回传网按照4核心、4汇聚、8接入、100 km光缆测算。

参数	参数设置
信道模型	TDL-C （时延扩展：300 ns）
终端运动速度/（km·h^-1）	3
BS 天线端口数量	4接收天线端口
终端天线端口数量	2发送天线端口
带宽/MHz	40
子载波间隔/kHz	30
合并方式	最小均方误差（MMSE）
DMRS个数	1
DMRS 种类	Type1/单符号DMRS
时域插值方式	线性
频域插值方式	sinc函数
Slot个数	1 000 000
终端个数	1
BS个数	1
信噪比范围/dB	-14～25

频率资源	时延类型	业务速率要求
频率资源	时延类型	2 Mbit/s	4 Mbit/s	6 Mbit/s	8 Mbit/s	10 Mbit/s
5RB	UL时延/ms	9.05	17	99.15	2 197.95	4 609.45
	GRANT-FREE UL时延/ms	6.2	13.55	89.5	2 029.9	4 259.4
	DL时延/ms	6.65	13.7	86.55	1 947.75	4 086.25
10RB	UL时延/ms	6.4	9.05	11.7	17	43.5
	GRANT-FREE UL时延/ms	3.75	6.2	8.65	13.55	38.05
	DL时延/ms	4.3	6.65	9	13.7	37.2
15RB	UL时延/ms	3.75	6.4	9.05	9.05	11.7
	GRANT-FREE UL时延/ms	1.3	3.75	6.2	6.2	8.65
	DL时延/ms	1.95	4.3	6.65	6.65	9

Research on 5G communication architecture of distribution network and its latency with reliability

RichHTML

PDF下载

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 18

Related Articles 15

Metrics

Recommended 0

[1]	Wanqing GUAN, Nuoyan LIU, Wei LI, Meixia FU, Haijun ZHANG. Slice scheduling for industrial time-critical services in 5G TSN integration network [J]. Telecommunications Science, 2024, 40(3): 53-63.
[2]	Yuanzhi LU, Xianglin WEI, Long YU, Changhua YAO. 5G OFDM channel estimation method based on complexvalued generative adversarial network [J]. Telecommunications Science, 2024, 40(3): 39-52.
[3]	Yejiang ZHANG, Jie CHEN, Yi LIU, Xingzheng LI, Fuyang LI, Jian HU. A new method for reducing 5G overlapping coverage of urban grid roads [J]. Telecommunications Science, 2024, 40(1): 83-91.
[4]	Baoyou WANG, Jingtao YANG, Saibin YAO, Haina YE, Zhihui WANG, Qiyuan ZHANG, Junfeng FU, Taishi JIN. Research on 5G high-precision indoor positioning technology for smart parks [J]. Telecommunications Science, 2023, 39(9): 163-173.
[5]	Jiancheng SUN, Jiaying SUN, Deshan MIAO, Chunlin LI. Thoughts on the standardization evolution of 5G NTN network architecture [J]. Telecommunications Science, 2023, 39(9): 76-86.
[6]	Qiucheng LU, Jinhui TANG, Congying BAO, Hao WU, Yusun FU. Research on 5G MEC security assessment system and method [J]. Telecommunications Science, 2023, 39(8): 43-57.
[7]	Zimei PENG, Guochu SHOU, Mengjie GUO, Yaqiong LIU, Yihong HU. A survey on redundancy mechanisms in time-sensitive networking [J]. Telecommunications Science, 2023, 39(8): 29-42.
[8]	Chengyu ZHENG, Yiting YAO, Hongbin LIANG, Lei WANG. Review of optimal resource allocation scheme for 5G Internet of vehicles [J]. Telecommunications Science, 2023, 39(7): 124-138.
[9]	Chen ZHANG, Hongkai WANG, Dong MAO, Sichen PAN, Shuai ZHAO. Research and application of 5G lightweight hardware encryption module for power terminals [J]. Telecommunications Science, 2023, 39(6): 159-169.
[10]	Yan WANG, Ying PENG. Research on 6G standardization of International Telecommunications Union（ITU） [J]. Telecommunications Science, 2023, 39(6): 129-138.
[11]	Hao XU, Lin WU. Research on VoWi-Fi interoperability based on 5G network [J]. Telecommunications Science, 2023, 39(5): 144-154.
[12]	Le ZHANG, Hongyuan MA. Practice on edge cloud security of telecom operators [J]. Telecommunications Science, 2023, 39(4): 165-172.
[13]	Jianbin WANG, Shuchun WANG, Shangjin LIAO, Shuyuan SHI. Research on 5G base station energy saving system based on DCNN-LSTM load prediction algorithm [J]. Telecommunications Science, 2023, 39(4): 133-141.
[14]	Guanghai LIU, Tian XIAO, Bei LI, Xinzhou CHENG, Yongbei XUE, Yi LI, Xiaomeng ZHU, Yuting ZHENG. Research on 5G service coverage capability before 4G carrier re-farming to 5G [J]. Telecommunications Science, 2023, 39(3): 115-123.
[15]	Siyang LIU, Yunfei ZHANG. From ICV 1.0 to ICV 2.0: real-time digital twin city construction for the coordinated development of ICV and smart city [J]. Telecommunications Science, 2023, 39(3): 32-44.