1. July 2003
HTSG - Report of the Channel Models Special Committee Vinko Erceg et al.
Vinko Erceg, Zyray Wireless

2. Current Status of the Channel Modeling Effort
July 2003
Current Status of the Channel Modeling Effort
Channel models are close to completion
Final version to be submitted during the September 2003 standards meeting
Current document version is r1
Vinko Erceg, Zyray Wireless

3. Changes and Additions in Rev1 of the Document
July 2003
Changes and Additions in Rev1 of the Document
Path loss model was added including standard deviation of shadow fading
Doppler Spectrum model was added
3 out out of 6 models were changed
Numerous small editorial changes were made based on comments
Vinko Erceg, Zyray Wireless

4. Path Loss Model Summary
July 2003
Path Loss Model Summary
Model
dBP (m)
Slope before dBP
Slope after dBP
Shadow fading std. dev. (dB) A 5 2
3.5 B C 8 D 10 E 20 F 30
Vinko Erceg, Zyray Wireless

5. Doppler Spectrum Model
July 2003
Doppler Spectrum Model
-10 dB dB f
Vinko Erceg, Zyray Wireless

6. Large Space/ (Indoors and Outdoors)
July 2003
Cluster Model Summary
Model
Environment
LOS/NLOS
K (dB)
RMS delay
spread (ns)
# of clusters A
Flat fading
NLOS -¥
1 tap B
Residential
LOS 10
(first tap only) 15 2 C
Residential/
Small Office 3
(first tap
only) 30 D
Typical Office 50 E
Large Office
100 4 F
Large Space/ (Indoors and Outdoors)
150 6
Vinko Erceg, Zyray Wireless

7. July 2003
Remaining Issues
Include a channel model with a higher Doppler (100 Hz)
Model verification using measured data
Polarization modeling
Elevation Angular Spread modeling
The later two will be addressed after the September 2003 submission, if required.
Vinko Erceg, Zyray Wireless