基于业务特征的TDD-LTE端到端QoS参数研究

doi:10.11959/j.issn.1000-0801.2016261

Abstract

Abstract:

Aiming at the high bandwidth and service quality demand of wireless access network because of rapid development of mobile internet, the common mobile internet services were analyzed. According to the service characteristic, the 3GPP network protocol specification and the local TDD-LTE network structure which had been deployed, an end-to-end QoS setup model was proposed and QoS parameter deployment verification was performed on a commercial network. The experimental results show that in the resource-consuming scene, the peak user amount of single TDD-LTE cell are increasing by 253.92%; in the real bandwidth-congesting scene, the peak user amount are increasing by 81.80%. The results of the study have good application and popularization.

Key words: TDD-LTE, QoS, end-to-end, mobile internet business

Zengyi LIU,Shanshan QU,Hong ZHANG. Study on end-to-end QoS parameters of TDD-LTE about the services of mobile internet[J]. Telecommunications Science, 2016, 32(10): 157-164.

Figures/Tables 19

References 10

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[4]	VANGALA S , LABRATOR M A . The TCP SACK-aware snoop protocol for TCP over wireless networks[C]// IEEE 58th Vehicular Technology Conference, Oct 6-9,2003, Orlando, Florida, USA. New Jersey:IEEE Press, 2003.
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运营商	中国移动	中国联通	中国电信
频段	2 575～2 595 MHz	1 840～1 860 MHz下行	1 860～1 875 MHz下行
	下行＆上行	1 750～1 770 MHz上行	1 765～1 780 MHz上行
组网模式	20 MHz×1	20 MHz×2	15 MHz×2
双工方式	TDD	FDD	FDD
实测下行速率/（Mbit·s^-1）	38.89	61.4	33.6
实测上行速率/（Mbit·s^-1）	5.83	38.5	28.4

承载类型	承载说明
GBR承载	如果一个EPS承载被固定分配专用网络资源以保障其速率，则该EPS承载被称为GBR承载
non-GBR承载	如果一个EPS 承载没有被固定分配专用网络资源以保障其速率，则该 EPS 承载被称为non-GBR承载

QoS参数	QCI	ARP	GBR	MBR	UE-AMBR	APN-AMBR
HSS	是	是	否	否	是	是
PGW	是	是	是	是	否	是
eNode B	是	是	是	是	是	否
UE	是	否	是	是	否	是

业务内容	即时聊天（微信）	在线游戏（腾讯）	视频通话（微信）	VoIP电话（微信）	标清视频（优酷）	超清视频（优酷）	高清视频（优酷）	网站访问（UC）	应用下载（UC）	E-mail（UC）
下行峰值/（kbit·s^-1）	211.95	42.34	309.02	45.24	17 424.00	29 896.00	18 040.00	1 532.70	24 344.00	97.63
下行平均速率/（kbit·s^-1）	2.22	2.39	198.79	37.86	403.24	1 953.69	1 297.82	105.25	19 712.55	78.97
上行行峰值/（kbit·s^-1）	107.14	12.49	256.50	43.47	194.60	367.17	188.71	125.95	721.59	6 820.37
上行平均速率/（kbit·s^-1）	1.36	1.29	182.63	31.43	7.13	16.58	11.83	15.39	531.21	5 176.28

QCI	资源类型	优先级	时延预算/ms	分组丢失率
1	GBR	2	100	10^-2
2	GBR	4	150	10^-3
3	GBR	5	300	10^-6
4	GBR	3	50	10^-3
5	non-GBR	1	100	10^-6
6	non-GBR	7	100	10^-3
7	non-GBR	6	300	10^-6
8	non-GBR	8
9	non-GBR	9

Study on end-to-end QoS parameters of TDD-LTE about the services of mobile internet

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References 10

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类别	业务内容	建议资源	建议QCI
网页浏览	应用下载（UC）	non-GBR	9
	网站访问（UC）	non-GBR	6
	E-mail（UC）	non-GBR	8
即时通信	视频通话（微信）	non-GBR	9
	即时聊天（微信）	non-GBR	9
	VoIP（微信）	non-GBR	9
网络游戏	在线游戏（腾讯）	GBR	3
视频点播	高清视频（优酷）	GBR	4
	超清视频（优酷）	non-GBR	8
	标清视频（优酷）	non-GBR	6

QCI	最低下行速率/（kbit·s^-1）	最低上行速率/（kbit·s^-1）
6	1 536×3	512×3
7	256×3	256×3
8	1 024×3	128×3
9	512×3	256×3

QCI	GBR/（kbit·s^-1）	QCI	MBR/（kbit·s^-1）
1	32	6	4 096
2	128	7	/
3	128	8	5 120
4	2 048	9	2 048
5	/	/	/

	信号极好（SINR＞22）	信号好（15＜SINR＜20）	信号中（5＜SINR＜10）	信号差（SINR＜0）
用户分布	10%	20%	40%	30%

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QCI	DSCP
1	46
2	26
3	34
4	26
5	48
6	18
7	18
8	10
9	0