 the potential to inflict serious collateral damage on the network. The damage (opportunity cost to other users) will be disproportionate to the realisable subscriber and application value. If the device additionally has poor sensitivity and selectivity the collateral damage will be greater. 3.7 LTE Scheduling Gain Scheduling gain is just one of many adaptive techniques used in any and all contemporary mobile broadband networks. These adaptive techniques can of course be used to compen- sate for poor channel conditions, which can be viewed as a proxy for insufficient network investment and/or poor user equipment sensitivity and selectivity, a proxy for a failure to invest in user equipment performance optimisation. This is the glass half-empty view of the world. Alternatively, adaptive techniques can be seen as a mechanism for achieving perfor- mance extension based on network density that has been dimensioned to deliver specific user experience quality metrics across a wide range of loading conditions and user equip- ment where a compromise between cost and performance optimisation has been successfully achieved. This is the glass half-full view of the world. In practice, user device receive sen- sitivity and selectivity improves scheduler efficiency, which in turn increases the user data duty cycle. Improving scheduler efficiency also improves e node B throughput that translates directly into lower energy cost per subscriber session supported and faster more responsive applications (improved application and task latency). This increases user value. In parallel, scheduler efficiency gain reduces network cost including energy cost. However, both the increase in user value and the decrease in network cost per subscriber served needs to be described and dimensioned. There are three enhanced receiver options in the LTE standard: enhanced type 1 UEs (user equipment) with receive diversity; enhanced type 2 with chip-level equalisation; enhanced type 3 with adaptive receive diversity and chip level equalisation. The sp