A medical apparatus for a patient, comprising: an implantable system , wherein the implantable system comprises an implantable device comprising: at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element , wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient. an implantable system , wherein the implantable system comprises an implantable device comprising: at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element , wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient. at least one implantable functional element configured to deliver stimulation energy comprising a stimulation waveform having waveform parameters to tissue of the patient; and an implantable controller configured to provide the stimulation waveform to the at least one implantable functional element , wherein the stimulation waveform comprises bursts of trains of pulses, wherein each train is a series of pulses and each burst is series of trains, each train has a train-on period from a beginning of a first pulse to an end of a last pulse of that train, there is a train-off quiescent period between an end of one train and a beginning of a next train, each burst has a burst-on period from a beginning of a first pulse of a first train to an end of a last pulse of a last train of that burst, and there is a burst-off quiescent period between an end of one burst and a beginning of the next burst, wherein the waveform parameters include the train-on period, the train-off quiescent period, the burst-on period, and the burst-off quiescent period, and wherein the waveform parameters are set to effect treatment of pain of the patient. <EOS>