论文信息 - Macro transmission power reduction for HetNet co-channel deployments

Macro transmission power reduction for HetNet co-channel deployments

Enhanced Inter-Cell Interference Coordination (eICIC) techniques are targeted to improve the system and cell-edge throughput of Heterogeneous Networks (HetNets) in LTE-Advanced systems. In order to protect pico UEs from the strong macro interference, the macro eNB can either stop data transmission or simply reduce the transmission power during certain subframes. In this paper, we investigate the impact of reducing the transmission power in LTE HetNets. We evaluate the tradeoff among macro transmission power, cell load and system and cell-edge throughput, with bursty and non-bursty traffic. Moreover, we address some of the technical and standardization challenges related to having a time-varying transmission power. Based on the results, we provide guidance on how to best configure the network to achieve the full potential of the eICIC concept in dynamically changing environments.

Klaus I. Pedersen | Beatriz Soret | K. Pedersen | B. Soret

[1] Naga Bhushan,et al. LTE-Advanced: Heterogeneous networks , 2010, 2010 European Wireless Conference (EW).

[2] Timothy A. Thomas,et al. LTE-advanced: next-generation wireless broadband technology [Invited Paper] , 2010, IEEE Wireless Communications.

[3] Ismail Güvenç,et al. Range Expansion and Inter-Cell Interference Coordination (ICIC) for Picocell Networks , 2011, 2011 IEEE Vehicular Technology Conference (VTC Fall).

[4] Tony Q. S. Quek,et al. Enhanced intercell interference coordination challenges in heterogeneous networks , 2011, IEEE Wireless Communications.

[5] Yongbin Wei,et al. A survey on 3GPP heterogeneous networks , 2011, IEEE Wireless Communications.

[6] Klaus I. Pedersen,et al. Performance Analysis of Enhanced Inter-Cell Interference Coordination in LTE-Advanced Heterogeneous Networks , 2012, 2012 IEEE 75th Vehicular Technology Conference (VTC Spring).

[7] Klaus I. Pedersen,et al. CRS interference cancellation in heterogeneous networks for LTE-Advanced downlink , 2012, 2012 IEEE International Conference on Communications (ICC).

[8] 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (e-utra); Further Advancements for E-utra Physical Layer Aspects (release 9) , 2022 .