Policy on Intellectual Property Right (IPR)
1     Introduction
2     Terms and definitions
        2.1     Spectrum resource
        2.2     Frequency channel occupancy measurement
        2.3     Frequency band occupancy measurement
        2.4     Measurement area
        2.5     Duration of monitoring (T_T)
        2.6     Sample measurement time (T_M)
        2.7     Observation time (T_Obs)
        2.8     Revisit time (T_R)
        2.9     Occupancy time (T_O)
       2.10     Integration time (T_I)
       2.11     Maximum number of channels (N_Ch)
       2.12     Transmission length
       2.13     Threshold
       2.14     Busy hour
       2.15     Access delay
       2.16     Frequency channel occupancy (FCO)
       2.17     Frequency band occupancy (FBO)
       2.18     Spectrum resource occupancy (SRO)
3     Measurement parameters
        3.1     Selectivity
        3.2     Signal to noise ratio
        3.3     Dynamic range
        3.4     Threshold
                  3.4.1     Pre-set threshold
                  3.4.2     Dynamic threshold
        3.5     Measurement timing
        3.6     Directivity of the measurement antenna
4     Site considerations
5     Measurement procedure
        5.1     FCO measurement with a scanning receiver
        5.2     FBO with a sweeping analyser
        5.3     FBO with FFT methods
6     Calculation of occupancy
        6.1     Combining measurement samples on neighbouring frequencies
        6.2     Classifying emissions in bands with different channel widths
7     Presentation of results
        7.1     Traffic on a single channel
        7.2     Occupancy on multiple channels
        7.3     Frequency band occupancy
        7.4     Spectrum resource occupancy
        7.5     Availability of results
8     Special occupancy measurements
        8.1     Frequency channel occupancy in frequency bands allocated to point-to-point systems of fixed service
        8.2     Separation of occupancy for different users in a shared frequency resource
        8.3     Spectrum occupancy measurement of WLAN (Wireless Local Area Networks) in 2.4 GHz ISM band
        8.4     Determining the necessary channels for the transition from analogue to digital trunked systems
        8.5     Estimation of RF use by different radio services in shared bands
9     Uncertainty considerations
10     Interpretation and usage of results
       10.1     General
       10.2     Interpretation of occupancy results in shared channels
       10.3    Using occupancy data to assess spectrum utilization
11     Conclusions
Annex 1 Probabilistic approach to spectrum occupancy measurements and relevant measurement data handling procedures
A     Preface
A1     General description of the approach
A2     Concept of spectrum occupancy
       A2.1     Spectrum occupancy as a statistical concept
       A2.2     Occupancy measurement error
       A2.3     Accuracy and confidence level of occupancy measurement
       A2.4     Parameters affecting the statistical confidence of occupancy measurement
                  A2.4.1     Pulsed and lengthy signals and signal flow rate.
                  A2.4.2     Relative instability of revisit time
                  A2.4.3     Use of lock-in and lock-out measuring systems for occupancy measurements
A3     Measuring procedures
       A3.1     Recommendations for measuring occupancy with lock-in measuring systems
                  A3.1.1     Data collection
                  A3.1.2     Occupancy measurement rule
                  A3.1.3     Selecting the number of samples
                  A3.1.4     Effect of incorrect choice of number of samples on the confidence level of the occupancy measurement
       A3.2     Recommendations for measuring occupancy with lock-out measuring systems
                  A3.2.1     Data collection
                  A3.2.2     Occupancy calculation rule
                  A3.2.3     Selecting the number of samples
A4     Typical examples of the impact of signal flow rate in the radio channel on the confidence level of spectrum occupancy calculations
       A4.1     Case A: One single signal present in the integration time
       A4.2     Case B: Twelve signals during the integration time
       A4.3     Case C: Several dozen signals within the integration time
Reference to Annex A

CONTENTS