基于时延差异性约束的LTE-R系统频谱需求预测

doi:10.11959/j.issn.1000-0801.2017330

电信科学 ›› 2017, Vol. 33 ›› Issue (12): 74-83.doi: 10.11959/j.issn.1000-0801.2017330

基于时延差异性约束的LTE-R系统频谱需求预测

刘鹏¹,李伟²,刘斌²,王坦²,耿绥燕¹

¹ 华北电力大学，北京 102206
² 国家无线电监测中心，北京 100037

修回日期:2017-12-08 出版日期:2017-12-01 发布日期:2018-01-12
作者简介:刘鹏（1992-），男，华北电力大学硕士生，主要研究方向为无线通信网络与新技术、无线通信系统频率规划等。|李伟（1984-），男，博士，国家无线电监测中心高级工程师，主要研究方向为频谱需求预测、电磁兼容分析、频谱管理技术等。|刘斌（1980-）男，国家无线电监测中心副处长、高级工程师，主要从事无线电频谱管理技术和政策研究工作，担任ITU-R和APT关于铁路无线电通信系统的 WRC 议题相关研究工作组主席。|王坦（1985-），男，博士，国家无线电监测中心高级工程师，主要研究方向为频率规划、频率评估和5G频率管理研究等。|耿绥燕（1966-），女，博士，华北电力大学副教授、硕士生导师，主要研究方向为毫米波MIMO无线通信信道实验与建模、UWB短距离通信技术及应用、无线通信系统链路分析等。
基金资助:
国家科技重大专项基金资助项目(2015ZX03002008)

Spectrum demand prediction ofLTE-Rsystem based on delay difference constraint

Peng LIU¹,Wei LI²,Bin LIU²,Tan WANG²,Suiyan GENG¹

¹ North China Electric Power University,Beijing 102206,China
² State Radio Regulatory Commission,Beijing 100037,China

Revised:2017-12-08 Online:2017-12-01 Published:2018-01-12
Supported by:
The National Science and Technology Major Project of China(2015ZX03002008)

摘要/Abstract

摘要：

为了科学地规划和分配LTE-R的用频，需要对其频谱需求总量做出合理预测。在深入分析ITU-R M.1768方法的基础上，提出了一种基于时延差异性约束的LTE-R系统频谱需求预测方法。该方法定义了9种服务类别和9种服务环境，推导给出了LTE-R系统业务量的计算表达式，在业务时延差异性约束条件下利用M/G/1排队模型对我国LTE-R系统的频谱需求进行了初步预测。研究结果表明，我国LTE-R系统上行和下行频谱需求不对称，且可能的范围分别是14~15MHz和5~6MHz，若不考虑未来新增的视频业务量，目前分配给GSM-R系统的频谱资源即可满足其带宽需求。此外，分析了LTE-R网络实际承载层面的工程频率效率和基于高带宽的视频业务量对LTE-R频谱带宽需求总量的影响。该研究为我国下一代铁路移动通信系统的频率规划提供了技术支撑。

关键词: LTE-R, 频谱需求, 频率规划, ITU-RM.1768

Abstract:

In order to plan and allocate the spectrum resources ofLTE-Rscientifically,it is necessary to make reasonable forecast of total spectrum demand for LTE-R.After deep analysis of ITU-R M.1768 method,a spectrum demand forecasting method based on different delay constraints forLTE-Rsystem was provided.This method defined nine kinds of service categories,nine kinds of service environments,and derived the expression ofLTE-Rsystem traffic.Under different delay constraints condition of different services,the M/G/1 queuing model was used to analyze the spectrum requirements ofLTE-Rsystem preliminarily.The results show that the uplink and downlink spectrum demand of China’sLTE-Rsystem is asymmetric and the possible range is 14~15MHz uplink and 5~6MHz downlink,respectively.If new video traffic in the future is not considered,the current spectrum resources distributed to GSM-R system spectrum can meet the bandwidth requirements ofLTE-Rsystem.In addition,the influence of engineering frequency efficiency ofLTE-Rnetwork and high-bandwidth video traffic onLTE-Rspectrum total bandwidth demand was analyzed.This study provides technical support for the frequency planning of China’s next generation railway mobile communication system.

Key words: LTE-R, spectrum demand, frequency planning, ITU-R M.1768

中图分类号:

TN929.5

刘鹏,李伟,刘斌,王坦,耿绥燕. 基于时延差异性约束的LTE-R系统频谱需求预测[J]. 电信科学, 2017, 33(12): 74-83.

Peng LIU,Wei LI,Bin LIU,Tan WANG,Suiyan GENG. Spectrum demand prediction ofLTE-Rsystem based on delay difference constraint[J]. Telecommunications Science, 2017, 33(12): 74-83.

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参考文献 20

[1]	AWG-20. Working document towards a draft APT report on system description of railway radiocommunication system between train and trackside (RSTT):AWG-20/TMP-43 (Rev.1)[S]. 2016.
[2]	AI B , GUAN K , RUPP M ,et al. Future railway services-oriented mobile communications network[J]. IEEE Communications Magazine, 2015,53(10): 78-85.
[3]	HE R , AI B , WANG G ,et al. High-speed railway communications:from GSM-R to LTE-R[J]. IEEE Vehicular Technology Magazine, 2016,11(3): 49-58.
[4]	北京交通大学,中国中铁二院工程集团有限责任公司,中国铁道科学研究院,等. 下一代铁路移动通信系统频率及制式研究报告[R]. 2015.
	Beijing Jiaotong University,China Railway Eryuan Engineering Group Co.,Ltd.,China Academy of Railway Sciences,et al. Research report on frequency and system of next generation railway mobile communication system[R]. 2015.
[5]	SNIADY A , SOLER J . LTE for railways:impact on performance of ETCS railway signaling[J]. IEEE Vehicular Technology Magazine, 2014,9(2): 69-77.
[6]	ITU-R. Methodology for the calculation of IMT-2000 terrestrial spectrum requirements:M 1390-0[S]. 1999.
[7]	ITU-R. Methodology for calculation of spectrum requirements for the terrestrial component of International Mobile Telecommunications:M 1768-1[S]. 2013.
[8]	ITU-R. Traffic forecasts and estimated spectrum requirements for the satellite component of IMT-2000 and systems beyond IMT-2000 for the period 2010 to 2020:M 2077-0[S]. 2006.
[9]	ITU-R. Traffic forecasts and estimated spectrum requirements for future development of the mobile-satellite service in the range 4-16 GHz:M 2218-0[S]. 2011.
[10]	ITU-R. Radiocommunication objectives and requirements for Public Protection and Disaster Relief (PPDR):Document 5A/469[S]. 2017.
[11]	ITU-R. Spectrum needs for the terrestrial component of IMT in the frequency range between 24.25 GHz and 86 GHz:document 5D/TEMP/171[S]. 2016.
[12]	ITU. Final acts WRC-15 world radiocommunication conference 2015[S]. 2015.
[13]	ITU. Future spectrum requirements estimate for terrestrial IMT:M 2290-0[S]. 2013.
[14]	中国铁路下一代移动通信技术研究工作组. WG1-2016-001-V1.0.中国铁路下一代移动通信系统频率及制式深化研究(V1.0)[S]. 2016.
	Research Group of Next Generation Mobile Communication Technology for China Railway. WG1-2016-001-V1.0.Deepening research on frequency and standard of next generation mobile communication system for China railway(V1.0)[S]. 2016.
[15]	3GPP. Technical specification group services and system aspects; policy and charging control architecture:TS23.203 v9.14.0[S]. 2014.
[16]	吴宇 . 铁路站场LTE-R宽带移动通信系统研究[J]. 铁道通信信号, 2016,52(8): 75-78.
	WU Y . Research onLTE-Rbroadband mobile communication system in railway station[J]. Railway Signaling ＆ Communication, 2016,52(8): 75-78.
[17]	ZHANG Y , XIONG L , JIANG W ,et al. Analysis and research on spectrum requirements of LTE for railways[C]// International Conference on Wireless,Mobile and Multi-Media,Nov 20-23,2015,Beijing,China. New Jersey:IEEE Press, 2016: 83-86.
[18]	HIDEAKI T , BERNHARD H W . Spectrum requirement planning in wireless communications model and methodology for IMT-Advanced[M]. Chichester: John Wiley ＆ Sons Ltd.Press, 2008.
[19]	ITU-R. Study on spectrum of railway radiocommunication between train and trackside (RSTT) with respect to the train radio applications:Document 5A/439[S]. 2017.
[20]	李文宇, 宋丽娜, 何秀淼 ,等. LTE 产业发展分析和展望[J]. 电信科学, 2014,30(3): 6-11.
	LI W Y , SONG L N , HE X M ,et al. Development analysis and perspective on LTE current status[J]. Telecommunications Science, 2014,30(3): 6-11.

	业务特征		速率等级
	业务特征	低速数据	中速数据	高速数据
会话类	Ⅰ类	—	SC1	SC7
	Ⅱ类	—	SC2	SC8
数据类	安全类	SC3	SC4	—
	非安全类	SC5	SC6	—
		—	—	SC9

SE	车站	区间	编组站	大型客站
重载铁路	SE1	SE4	SE7	—
200km/h以下铁路	SE2	SE5	SE8	SE9
300km/h以上铁路	SE3	SE6	—

SC	平均分组长度/(bit·s^-1·packet^-1)	分组长度的二阶段矩/(bit·s^-2·packet^-1)	允许的平均分组时延/ms
SC1	820.48	1 108 765.92	100
SC2	820.48	1 108 765.92	150
SC3	380.88	288 155.12	100
SC4	820.48	1 108 765.92	100
SC5	380.88	288 155.12	300
SC6	820.48	1 108 765.92	300
SC7	8 172.80	52 739 432.56	100
SC8	8 172.80	52 739 432.56	150
SC9	10 954.64	92 189 866.64	300

SC	SE1	SE2	SE3	SE4	SE5	SE6	SE7	SE8	SE9
SC1	0.012	0.006 3	0.013 5	0.004 5	0.009 375	0.03	0.018	0.371 875	0.016 875
SC2	0.053 813	0.003 15	0.006 75	0	0	0.022 5	0.077 438	0.194 531	0.028 125
SC3	0.005 447	0.000 77	0.000 478	0.001 556	0.000 313	0.000 641	0.008 947	0.006 211	0.001 101
SC4	0.013 125	0	0	0.003 75	0	0.062 5	0.056 875	0.203 125	0
SC5	0.007 366	0.030 69	0.070 453	0.000 769	0.002 578	0.037 578	0.025 703	0.068 848	0.168 359
SC6	1.116 5	1.396 5	1.687 5	0	0	0.790 625	2.206 75	6.158 59	7.078 5
SC7	1.344	3.36	7.2	0	0	8.2	4.099 2	9.72	9
SC8	0.336	0.201 6	0.432	0.144	0.3	0.96	0.504	1.5	0.54
SC9	2.562	0.201 6	0.432	0	0	1.44	2.562	4.575	0.54

SC	SE1	SE2	SE3	SE4	SE5	SE6	SE7	SE8	SE9
SC1	0.072	0.045	0.013 5	0.004 5	0.009 375	0.045	0.102 5	0.371	0.016 8
SC2	0.018	0	0	0	0	0.022 5	0.110 625	0.195	0
SC3	0.050	0.114	0.017 1	0.001 51	0.000 23	0.051	0.022 5	0.024 7	0.035 3
SC4	0.075	0	0	0.003 75	0	0.062 5	0.031 25	0	0
SC5	0.12	0.518 75	0.098 4	0.000 75	0.002 5	0.046 7	0.203	0.447	0.352
SC6	0.012	0.015	0.679 5	0.000 6	0.001 25	0.077 5	0.547	1.025	1.887 5
SC7	0	0	0	0	0	0	3.456	4.32	0
SC8	2.304	1.44	0.432	0.144	0.3	0.96	0.72	1.5	0.54
SC9	0	4.8	2.88	0	1.2	1.2	0	0	6

基于时延差异性约束的LTE-R系统频谱需求预测

Spectrum demand prediction ofLTE-Rsystem based on delay difference constraint

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图/表 12

参考文献 20

相关文章 7

Metrics

推荐阅读 0

系统容量	SE1	SE2	SE3	SE4	SE5	SE6	SE7	SE8	SE9
上行	5.47	5.33	9.99	0.19	0.37	11.62	9.59	22.84	17.54
下行	2.80	4.54	4.13	0.19	1.53	2.49	3.63	5.92	8.84

业务类别	高进程到达率/(进程?(s?用户)^-1)	低进程到达率/(进程?(s?用户)^-1)
机车自动视频监控（AVDR）	0.04	0.01
特殊区域线路视频监控	0.02	0
调机视频监控	0.012	0.002 5
作业视频监控	0.002 5	0.002 5
列车安全视频监控	0.001 25	0.001 25
道岔缺口视频监控	0.003 5	0.002 5

[1]	邓宏宇,汪一鸣,吴澄. 基于MRR调度的认知LTE-R基站和服务类型值优先队列管理[J]. 电信科学, 2018, 34(6): 80-90.
[2]	方箭,王坦,黄标. 高频段宽带无线通信前瞻[J]. 电信科学, 2014, 30(3): 109-113.
[3]	王坦,黄标,庞京. 未来IMT系统频谱需求预测的现状与展望[J]. 电信科学, 2013, 29(4): 125-130.
[4]	聂博识,冯志勇,冯泽冰,宋心刚. 基于层次化频谱需求预测的IMT系统频率规划[J]. 电信科学, 2012, 28(5): 30-36.
[5]	田艳中. cdma2000室内分布系统与室外基站协同规划分析[J]. 电信科学, 2009, 25(8): 100-103.
[6]	王岚峰. TD-SCDMA频率规划探讨[J]. 电信科学, 2007, 23(6): 68-71.
[7]	万彭,贺丰,吴丽凤. B3G系统的频谱需求分析[J]. 电信科学, 2006, 22(6): 34-38.

频谱需求	1.4MHz	3MHz	5MHz
上行	14	15	15
下行	5.6	6	5