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

Abstract

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

CLC Number:

TN929.5

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.

Figures/Tables 12

References 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.

Metrics

Recommended 0

No Suggested Reading articles found!

	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

Spectrum demand prediction ofLTE-Rsystem based on delay difference constraint

RichHTML

PDF下载

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 20

Related Articles 4

Metrics

Recommended 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]	Xirui GUO, Tao ZHANG, Qiang ZHANG, Dongyang WANG, Yan YANG. A solution for 5G indoor and outdoor co-frequency network interference [J]. Telecommunications Science, 2022, 38(2): 139-148.
[2]	Hongyu DENG,Yiming WANG,Cheng WU. MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy [J]. Telecommunications Science, 2018, 34(6): 80-90.
[3]	Nie Boshi,Feng Zhiyong,Feng Zebing and Song Xingang. Frequency Planning of IMT System Based on the Hierarchical Spectrum Demand Forecast [J]. Telecommunications Science, 2012, 28(5): 30-36.
[4]	Lanfeng Wang. Discussion of Frequency Planning of TD-SCDMA Network [J]. Telecommunications Science, 2007, 23(6): 68-71.

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