Optimized Time-Domain Resource Partitioning for Enhanced Inter-Cell Interference Coordination in Heterogeneous Networks

Provided by: Alcatel-Lucent
Topic: Mobility
Format: PDF
Heterogeneous Networks (HetNets) are expected to be one of the major performance enhancement enablers of LTE-Advanced. Due to significantly challenging interference scenarios, enhanced Inter-Cell Interference Coordination (eICIC) based on Almost Blank Subframes (ABS) is the key technology enabler that makes HetNets a reality. The key factor determining the gain of ABS-based eICIC is the configured number of ABS which depends closely on the number of UEs requesting protection from ABS. In this paper, the authors study the optimal amount of ABS for synchronous ABS configuration by formulating this optimization as a network-wide utility maximization problem.

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