TD-LTE基站射频一致性测试研究和应用

doi:10.11959/j.issn.1000-0801.2015123

Abstract

Abstract:

Currently，1ong term evolution（LTE）technology has become the key to the evolution of the whole mobile communication network. The radio frequency（RF）performance of TD-LTE base station，which is the only element in 3GPP radio access network，directly affects coverage，capacity and quality of service of the entire network. Firstly，the system architecture of TD-LTE base station and the related RF testing standard were introduced. Then，on the basis of the research of TD-LTE RF conformance testing，the physical meaning and influence on the actual network deployment of the test items were analyzed. Finally，a feasibility scheme of the base station RF conformance testing was proposed，and the results of some testing items were evaluated.

Key words: 4G, TD-LTE, base station radio frequency testing

Li Gui,Luohui Xia. Study and Application on RF Conformance Testing of TD-LTE Base Station[J]. Telecommunications Science, 2015, 31(5): 107-113.

工作频段/MHz	功率/dBm	相对中心频点起始频点/MHz	相对中心频点终止频点/MHz	测量带宽/MHz	峰值频点/GHz	峰值功率/dBm	峰值功率与限制差/dB	结论
2 575～2 635	41.76	-22.500	-20.500	1.00	2.564 433 000	-39.90	-24.90	合格
		-20.050	-15.050	0.10	2.569 839 000	-49.47	-36.97
		-15.050	-10.050	0.10	2.574 043 000	-34.90	-28.13
		10.050	15.050	0.10	2.599 453 000	-34.75	-23.09
		15.050	20.050	0.10	2.600 116 000	-35.57	-23.07
		20.050	22.500	1.00	2.605 567 000	-28.25	-13.25
2 635～2 655	46.00	-22.500	-20.500	1.00	2.623 900 000	-36.49	-21.49	合格
		-20.050	-15.050	0.10	2.629 928 000	-42.73	-30.23
		-15.050	-10.050	0.1	2.632 052 000	-35.75	-26.19
		10.050	15.050	0.10	2.658 789 000	-36.01	-25.27
		15.050	20.050	0.10	2.660 161 000	-39.67	-27.17
		20.050	22.500	1.00	2.667 478 000	-36.22	-21.22

工作频段/MHz	功率/dBm	带宽（BW）/MHz	距最低或最高载波中心频点的邻道中心频点偏移量	指标	测试结果/dB	结论
2 575～2 635	41.76	20	+BW	≥44.2 dB	56.33	合格
			+2×BW		62.05
			-BW		61.59
			-2×BW		66.11
2 635～2 655	47.80	20	+BW	≥44.2 dB	63.81	合格
			+2×BW		67.66
			-BW		64.26
			-2×BW		68.30

工作频段/MHz	系统带宽/MHz	参考灵敏度/dBm	吞吐量限值	测量结果/dBm	结论
2 320～2 370	20	-100.8	≥95%	-105.4	合格
2 575～2 635	20	-100.8	≥95%	-105.2	合格

工作频段/MHz	有用信号			干扰信号		干扰信号功率/dBm	吞吐量限值	干扰信号功率测试结果/dBm	结论
工作频段/MHz	虚拟资源块偏移量/个	带宽/MHz	平均功率/dBm	虚拟资源块偏移量/个	带宽/MHz	干扰信号功率/dBm	吞吐量限值	干扰信号功率测试结果/dBm	结论
2 320～2 370	25	20	-97.1	50	20	-77	≥95%	-54.26	合格
	50	20	-97.1	25	20			-57.36
2 575～2 635	25	20	-97.1	50	20	-77	≥95%	-45.96	合格
	50	20	-97.1	25	20			-46.86

工作频段/MHz	有用信号			干扰信号		干扰信号功率/dBm	吞吐量限值	干扰信号功率测试结果/dBm	结论
工作频段/MHz	虚拟资源块偏移量/个	带宽/MHz	平均功率/dBm	中心频率/MHz	带宽/MHz	干扰信号功率/dBm	吞吐量限值	干扰信号功率测试结果/dBm	结论
2 320～2 370	0	20	-94.80	2 317.497 5	5	-52	≥95%	-38.00	合格
	75	20	-94.80	2 342.502 0	5			-39.30
2 575～2 635	0	20	-94.80	2 572.497 5	5	-52	≥95%	-36.20	合格
	75	20	-94.80	2 597.502 5	5			-36.10

Study and Application on RF Conformance Testing of TD-LTE Base Station

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1	王映民，孙韶辉 . TD-LTE技术原理与系统设计. 北京：人民邮电出版社， 2010 Wang Y M ， Sun S H . TD-LTE Principles and System Design. Beijing： Posts＆Telecom Press， 2010
2	3GPP TS36.141 V9.8.0. Evolved Universal Terrestrial Radio Access（E-UTRA）：Bases Station（BS）Conformance Testing， 2012
3	3GPP TS36.104 V9.8.0. Evolved Universal Terrestrial Radio Access（E-UTRA）：Bases Station（BS）Radio Transmission and Reception， 2011
4	工业和信息化部. YD 2571-2013 TD-LTE数字蜂窝移动通信网基站设备技术要求（第一阶段）， 2013MIIT. YD 2571-2013 TD-LTE Digital Cellular Mobile Telecommunication Network-Technical Requirement of eNode B Equipment（Phase 1）， 2013
5	工业和信息化部. YD 2572-2013 TD-LTE数字蜂窝移动通信网基站设备测试方法（第一阶段）， 2013MIIT. YD 2572-2013 TD-LTE Digital Cellular Mobile Telecommunication Network-Test Method of eNode B Equipment（Phase 1）， 2013

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