Import auxiliary schemas
for global element references.
DOCSIS-SPECTRUM-MEASUREMENT-TYPE is an IPDR Service
Definition schema defining the Enhanced Signal Quality
Monitoring Spectrum Measurement Type IPDR data record which
references the imported global elements.
3.5.1-A.1 Initial version.
3.5.1-A.2 Revised version includes ECN
OSSIv3.0-N-10.0968-2 and published as I14.
DOCSIS 3.0 Operations Support System Interface Specification
CM-SP-OSSIv3.0-I14-110210, Annex J.
Frequency Span is derived from the SpectrumAnalysisCfgBinSpacing and
the length of the SpectrumAnalysisMeasurementBinAmplitude
string divided by two (i.e., the Number of Bins).