Allocation of multiple services in multi-access wireless systems

This paper discusses principles for allocating multiple services onto different sub-systems in multi-access wireless systems. Favorable near-optimum sub-system service allocations that maximize combined multi-service capacity are derived through simple optimization procedures. These favorable service allocations are either characterized by that the relative resource cost for supporting services is equal in all sub-systems, or they are extreme points where services are isolated in different subsystems. As a consequence of this, services should typically be mixed in sub-systems with convex capacity regions, and isolated in sub-systems with concave capacity regions. Simple user assignment algorithms based on this are also discussed. Additionally, illustrating the main findings of the analysis, some system examples are given, including a mixed GSM/EDGE and WCDMA case study.