System Level Analysis of Dynamic Receiver Reconfiguration for MBMS on S-CCPCH

In this paper, we present results of a simulation study intended to investigate the feasibility of dynamic receiver reconfiguration in case of multimedia broadcast multicast service (MBMS). Based on current radio channel conditions one receiver branch of a UE which has 2Rx rake receiver can be switched off dynamically for power saving purposes. The study performed consisted of dynamic system level simulations of MBMS point-to-multipoint (p-t-m) transmission. This scenario can be considered a favorable one for dynamic receiver reconfiguration as there are no scheduling or power control feedback issues, and other users of the system should not be heavily impacted by dynamic reconfiguration of a particular UE. However, there is still the possibility that the MBMS service coverage area could be impacted by individual user switching decisions, and the intention of this study is to examine MBMS coverage when a population of UEs implement dynamic receiver reconfiguration. Based on the findings of this study it seems that 2Rx rake receiver can operate with a single antenna significant amount of time without sacrificing desired coverage and thus provide clear power saving opportunities.