一种窄带M2M系统与LTE系统共享频谱的机制

doi:10.11959/j.issn.1000-0801.2015290

Abstract

Abstract:

Long term evolution（LTE）networks is an advanced mobile broadband network defined in 3GPP（3rd Generation Partnership Project）,to satisfy the human to human communication requirement.With the quick developing of machine to machine communication requirement,how to deploy the M2M networks with a high speed,low cost and efficient manner is the definite requirement in the industry.A low cost M2M network which deploy co-sited with MBB networks and shared spectrum with MBB network was proposed.System simulations show the spectrum sharing mechanism can solve the inter-RAT interference influence and ensure the acceptable performance loss.And the mechanism is low cost and technical reasonable.

Key words: LTE, mobile broadband, machine to machine communication, spectrum sharing

Guoping Chen,Qingbo Du. A Spectrum Sharing Mechanism Between Narrowband M2M System and LTE System[J]. Telecommunications Science, 2015, 31(11): 91-97.

Figures/Tables 11

References 8

1	徐少毅，秦新涛．基于 LTE 的窄带 M2M 通信系统覆盖增强研究．北京交通大学学报， 2015,39（2）:86～92 Xu S Y , Qin X T . Research on coverage enhancement of narrow-band M2M communications based on LTE. Journal of Beijing Jiaotong University, 2015,39（2）:86～92
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特征	实现
系统频点	1 800 MHz
系统带宽	LTE:5 MHz FDD
	GSM:5 MHz FDD
站间距	500 m
基站功率	LTE小区：43 dBm/5 MHz
	M2M小区：43 dBm/200 MHz
UE发射功率	LTE UE:24 dBm
	M2M UE:33 dBm（采用GSM模块）
传播模型	基站到 UE（LTE与M2M相同）：
	L=123.3+37.6 lg R,R单位为km
	参考文献[7]中表格A.2.1.1-3
天线模型	LTE与M2M共享天线
	3D天线模型
	参考文献[8]中表A.2.1.1.2-2
信道模型	6 paths的TU（典型城区）信道
阴影模型	Log-normal阴影模型（LTE与M2M相同）：均值=0 dB，方差=8 dB
物理层模型	EESM模型，HARQ合并
	LTE eNB:2×2 IRC接收机

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A Spectrum Sharing Mechanism Between Narrowband M2M System and LTE System

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