Study on Operations, Administration and Maintenance (OAM) aspects of inter-Radio-Access-Technology (RAT) energy saving
General material - [2], [3] - and detailed material - [4], [5], [6] - on Energy Saving and/or its Management aspects have been created by 3GPP. The present document focuses on Inter-RAT aspects of Energy Saving, i.e. reducing the capabilities of one RAT to reduce its energy consumption while providing a back-up by another RAT. Concepts and scenarios described in [2], [3] and methods defined in [4], [5], [6] as well as additions to them are analysed to identify the most favourable management solutions in this context and their possible limitations.
The following RATs are considered in this study: GSM, UMTS; LTE, CDMA.