Skip to Main Content
The target of this paper is to quantify some of the benefits of common radio resource management (CRRM) for traffic management in an environment where several different radio access technologies co-exist with cells on several hierarchical layers. The benefits of the load balancing, i.e., the capacity (trunking) gains from CRRM concept are studied by dynamic simulations for both real-time and non-real-time traffic. The results show that CRRM improves the conversational and streaming capacity by 11% with 144 kbps and the interactive capacity up to 70-140% when 5 s delay is required with 90-95% probability. These results assume that 4 systems/layers are integrated, e.g. UTRAN + GERAN macro + micro layers. According to these results CRRM is most important for improving interactive packet data capacity. The gain for conversational and streaming services increases when the bit rate is higher than 144 kbps. The gain also increases if more systems or layers are integrated.