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A.17.20.1 Description of the model

...

Scenario

LOS/NLOS

Path Loss [dB]

Shadow fading std [dB]

Applicability ranges and default values [m]

Urban Macro (UMa)

LOS

PLUMa-LOS= PL1, 10 m≤d≤dBP'PL2, dBP'≤d≤5 km , (see Note 1)

σSF=4

hMS=1.5
hBS=25



 

 

PL1=28.0+22log10d+20log10fc 

 





 

 

PL2=7.8+40log10d-18.0log10hBS'-18.0log10hMS'+2.0log10fc 

 




 

NLOS

PLUMa-NLOS=161.04-7.1log10W+7.5log10h-24.37-3.7hhBS2log10hBS+(43.42-3.1log10hBS))log10d-3+20log10 fc-(3.2log1011.75hMS2-4.97)

σSF=6

hBS=25
hMS=1.5
W=20
h=20
10≤d≤5000
10≤hBS≤150
1≤hMS≤10
5≤W≤50
5≤h≤50

Suburban Macro (SMa)

LOS

PLSMa-LOS= PL1, 10 m≤d≤dBP'PL2, dBP'≤d≤5 km , (see Note 2) 


hBS=35
hMS=1.5
W=20
h=10
10≤hBS≤150
1≤hMS≤10
5≤W≤50
5≤h≤50

(Note 2)

 

 



PL1=20log10(40πd3Dfc/3)+min0.03h1.72, 10log10d- min0.044h1.72, 14.77+0.002dlog10h

σSF=4

 




 

 

PL2=PL1dBP+40log10ddBP

σSF=6

 

 



NLOS

PLSMa-NLOS=161.04-7.1log10W+7.5log10h-24.37-3.7hhBS2log10hBS+(43.42-3.1log10hBS)(log10d-3)+20log10fc-(3.2log1011.75hMS2-4.97)

σSF=8

 


Rural Maro (RMa)

LOS

PLRMa-LOS= PL1, 10 m≤d≤dBP'PL2, dBP'≤d≤10 km , (see Note 2)

 


hBS=35
hMS=1.5
W=20
h=5

10≤hBS≤150
1≤hMS≤10
5≤W≤50
5≤h≤50 



 

PL1=20log10(40πdfc/3)+min0.03h1.72, 10log10d- min0.044h1.72, 14.77+0.002dlog10h

σSF=4

 




 

 

PL2=PL1dBP+40log10ddBP

σSF=6 



 

NLOS

PLRMa-NLOS=161.04-7.1log10W+7.5log10h-24.37-3.7hhBS2log10hBS+(43.42-3.1log10hBS)(log10d-3)+20log10fc-(3.2log1011.75hMS2-4.97)

for 10≤d≤5 km

σSF=8 



Note 1:
Breakpoint distance dBP'=4hBS'hMS'fc/c, where fc is the centre frequency in Hz, c=3×108 m/s is the propagation velocity in free space, and hBS' and hMS' are the effective antenna heights at the BS and the MS, respectively. The effective antenna heights hBS' and hMS' are computed as follows: hBS'=hBS-hE, hMS'=hMS-hE, where hBS and hMS are the actual antenna heights, and hE is the effective environment height assumed to be hE=1 m.
Note 2:
Break point distance dBP=2πhBShMSfc/c, where fc is the centre frequency in Hz, c=3×108 m/s is the propagation velocity in free space, and hBS and hMS are the antenna heights at the BS and the MS, respectively.

SEAMCAT specific implementation:

hBS=maxhTx, hRx
hMS=minhTx, hRx

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_Ref529442393
Table 2: LOS Probability

Scenario

LOS probability

UMa

PLOS=min18d, 1⋅1-exp-d63+exp-d63

SMa

PLOS=1, d≤10exp-d-10200, d>10

RMa

PLOS=1, d≤10exp-d-101000, d>10

...


The input parameters for the path loss model ITU-R M.2135-1 are shown in Figure 1 and defined in Table 3.

Anchor
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_Ref507762590
Figure 1: GUI of the ITU-R M.2135-1 path loss model
Anchor
_Ref507762636
_Ref507762636
Table 3: Parameters of the ITU-R M.2135-1 path loss model

Description

Symbol

Type

Unit

Comments

Variation

σSF

B

dB

Variation in path loss (applies shadow fading)

Scenario

-

S

-

Urban Macro Cell (UMa), Suburban Macro Cell (SMa) or Rural Macro Cell (RMa)

Line of Sight

-

S

-

Line of Sight (LOS), Non-Line of Sight (NLOS), or LOS Probabilities

Street width

W

D

m

Average street width

Building height

h

D

m

Average building height

 

 



References

[1]

ITU-R, "Report ITU-R M.2135-1: Guidelines for evaluation of radio interface technologies for IMT-Advanced," 2009.

[2]

P. Kyösti, J. Meinilä, L. Hentilä, X. Zhao, T. Jämsä, C. Schneider, M. Narandzić, M. Milojević, A. Hong, J. Ylitalo, V.-M. Holappa, M. Alatossava, R. Bultitude, Y. d. Jong and T. Rautiainen, "IST-4-027756 WINNER II D1.1.2 V1.2 WINNER II Channel Models Part I: Channel Models," 2008.

[3]

M. K. Samimi, T. S. Rappaport and G. R. MacCartney, "Probabilistic omnidirectional path loss models for millimeter-wave outdoor communications," IEEE Wireless Communications Letters, vol. 4, no. 4, p. 357–360, 2015.

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