Part A: Model parameters for an urban
environment for the physical-statistical wideband land mobile satellite
services channel model in Recommendation ITU‑R P.681
1 Wideband LMSS channel model
2 Software model download
3 Physical-statistical wideband
model for mixed propagation conditions
3.1 Shadowing of the
direct signal
3.1.1 House-front
module
3.1.2 Light pole
module
3.1.3 Tree
module
3.2 Reflections
3.2.1 Synthesis
of a single reflection
3.2.2 Number of
coexisting reflections
3.3 Model parameters for
an urban environment
3.4 Model input
3.5 Model output
3.6 Model output usage
3.7 User Implementation
Features: interpolation of series of time-continuous discrete impulses to FIR
filter coefficients
3.7.1 Low-pass
interpolation of sampling points matching Dirac input impulses
3.7.2 Low-pass
interpolation of time-continuous Dirac input impulses
3.7.3 Interpolation
of time-continuous Dirac input impulses in frequency domain
3.7.4 Comparison
of the interpolation methods with a sampling frequency of 100 MHz
4 Report on physical-statistical
wideband LMSS model in urban and suburban scenarios in Munich
4.1 Environment
description
4.1.1 Urban
measurements
4.1.2 Suburban
city
4.2 Model description of
scenario specific features
4.2.1 Urban vehicle
4.2.2 Suburban
vehicle
4.2.3 Urban
pedestrian
4.2.4 Suburban
pedestrian
4.3 Geometric parameters
4.3.1 User parameters
4.3.2 Building
parameters
4.3.3 Tree
parameters
4.3.4 Pole
parameters
5 Data file interface
descriptions
5.1 Statistical data file
description
5.1.1 Elevation
vector
5.1.2 Number of
coexisting echoes
5.2 Echo bandwidth
5.3 Life span of
reflectors
5.4 Rice factor of echoes
5.5 Movement of reflection points
5.6 Horizontal reflector
position distribution
5.7 The relative
satellite-reflector azimuth angle
5.8 Average power of echo
signals
6 User motion
6.1 Case 1: Specific case
simulation
6.2 Case 2: Statistical
simulations (Monte Carlo simulation)
6.2.1 Car
Profile – Car A
6.2.2 Pedestrian
profile – “Pedestrian A”
7 Acronyms
8 IPR protection
9 References
Part B: Model parameters for the physical-statistical wideband
satellite-to-indoor channel model in Recommendation ITU‑R P.681
1 Satellite-to-indoor channel
propagation model
1.1 Usage of the channel
model simulator
1.1.1 Input
parameters
1.1.2 Running
the model and output parameters
1.2 Detailed description
of the satellite-to-indoor model
1.2.1 Entry loss
model
1.2.2 Wideband
satellite-to-indoor channel model
1.2.3 Frequency
extension to C-band
1.2.4 Simulation
example
1.2.5 Comparison
to measurement data
1.2.6 Software
validation
2 References