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www.huawei.com

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI ConfdentialPae !

WC"#A $NP CW Te%t and P&o'aation

#odel Tunin

Inte&nal

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Pae (

Int&oduction

 CW te%t )Continuou% Wa*e te%t+ i% an im'o&tant %te' o P&o'aation #odel  Tunin. Acco&din to the CW te%t data )includin latitude-lonitude and &ecei*ed le*el+ and co&&e%'ondin "iital ma'%, we can et the accu&ate P&o'aation #odel th&ouh tunin.

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Pae 

Chapter 1 Principle of Radio

Propagation and CW Test

Chapter 2 CW Test Flow

Chapter 3 Analysis of CW Test Data

Chapter 4 Propagation Model

Tning

CONTENT

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P&inci'le o $adio P&o'aation and CW Te%t

 Section 1 Basic Principle of

Radio Propagation

 !ection 2 Principle of

Propagation Model Tning

 !ection 3 Prpose of CW

Test

 !ection 4 "asic Principle of

CW Test

 

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Pae 0

$adio Wa*e1and Cla%%ifcation$adio Wa*e1and Cla%%ifcation

Frequencies in dierent bands have dierent propagation characteristics.

300-3000GHz

EHFExtremely High Frequency

30-300GHz

SHFSuper High Frequency3-30GHz

UHFUltra High Frequency300-3000MHz

VHFVery High Frequency30-300MHz

HFHigh Frequency3-30MHz

MFMedium Frequency300-3000KHz F!" Frequency30-300KHz

VFVery-l!" Frequency3-30KHz

VFV!ice Frequency300-3000Hz

EFExtremely !"

Frequency

30-300Hz

3-30Hz

#e$ignati!n%la$$i&icati!nFrequency

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Perpendiclar incidence wa'e

and grond re+ection wa'e ,&ost co&&on propagation &odes- 

Troposphere re+ection wa'e  ,the propagation is 'ery rando&- 

Montain di.raction wa'e ,shadow area signal sorce-

/onosphere refraction wa'e  ,0eyondthehorion co&&nication path-

P&o'aation Path

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①Re+ected wa'e of 0ilding Di.racted wa'e Direct wa'e 5Re+ected wa'e on the grond

Cha&acte&i%tic% o $adio P&o'aation

 #lectric wa'e propagation syste&

of 6and Mo0ile Co&&nications

 Radio

propagation in

actal

en'iron&ent

 6%! and 76%!

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Cha&acte&i%tic% o $adio Channel%Cha&acte&i%tic% o $adio Channel%

d ,&-

Pr ,d"&-

18 28 38

28

48

98

!low fading

Fast fading 

Radio channels 'arywith ser:s position and ti&e;

 Mltipath scattering and o0strction reslt in acte

changes to recei'ed power; !low fading • Attenation* Pr is in direct

proportion to 1

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"i*e&%it4 Technolo4"i*e&%it4 Technolo4

#ea%u&e% aain%t a%t adin; di*e&%it4

technoloie% － E3'licit di*e&%it4

• S'ace di*e&%it4 • Pola&i?ation di*e&%it4 • @&e5uenc4 di*e&%it4：GS#;&e5uenc4 ho''in WC"#A;

%'&ead %'ect&um

－ Im'licit di*e&%it4 • Im'licit di*e&%it4 u%e% %inal '&oce%%in technoloie% to

hide di*e&%it4 unction% into %inal% unde& t&an%mi%%ion,

%uch a% $ABE &ece'tion technolo4, inte&lea*in and e&&o&code co&&ection. • $ea&ded a% time di*e&%it4

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Pae =(

"ela4 S'&ead"ela4 S'&ead

 #ulti'ath '&o'aation8 Sinal% on di:e&ent 'ath% &each the &ecei*e& at di:e&ent time.

 When the &ecei*e& ail% to di%tinui%h multi'ath %inal%, co;channel inte&e&ence )CCI+ occu&%. In the WC"#A %4%tem, onl4 the multi'ath dela4 la&e& than one chi' 'e&iod )>.!0%, 26m+ can 1e &econi?ed.

  T4'ical *alue )%+8 O'en D >.!, Su1u&1an  >./, U&1an  (

!oltions #)aliation and RA=# technology

#)aliation and RA=# technology

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Pae =

"o''le& @&e5uenc4 Shit

 E3am'le o "o''le& e:ect8 A t&ain i% 'a%%in 14 4ou.

f 1

f 2

f 3

V ( k m / h )

 "o''le& &e5uenc4 %hit in #o1ile Communication%

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Pae =/

'

( 

'

( 

•  "i:&action lo%%   •  Penet&ation lo%%

•  Clutte& lo%%

Lo%%

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Pae =2

•  O1%tacle-'enet&ation lo%% i%8

  Pa&tition o1%t&uction8 /～ !>dF   @loo& o1%t&uction8 ＞ !>dF

  O1%t&uction o u&nitu&e and othe& 1a&&ie&%8 !～

=/dF

  Thic9 la%%8 0～ =>dF

  Penet&ation lo%% o the ca&&iae o the t&ain8 =/ ～ (>dF

Penet&ation lo%% o lit8 (>dF o& %o

  Lo%% o thic9 lea*e%8 =>dF

Penet&ation Lo%%

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Pae =6

$adio P&o'aation En*i&onment$adio P&o'aation En*i&onment

$adio '&o'aation en*i&onment dete&mine% the

'&o'aation model% di&ectl4. And '&o'aation

en*i&onment i% im'acted 14 the ollowin acto&%8

•  Lando&m )te&&ain+8 mountain, hill, 'lain, wate&%, and

*eetation

• Clutte&8 1uildin, &oad and 1&ide

• Noi%e8 natu&al noi%e and a&tifcial noi%e

• Climate8 &ain, %now and ice )tin4 e:ect on UH@ 1and+

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Pae =7

$adio P&o'aation En*i&onment$adio P&o'aation En*i&onment  T4'e o &adio en*i&onment

 $adio en*i&onment i% cla%%ifed a% ollow%, acco&din to ITU;$

P.===;= and %'ecifc condition% in China.

Propagation

environment Description

Dense urban Many tall buildings, signals fail to diffract from the roof of

building .

Urban Signals can diffract from the roof due to low buildings and wide streets.

Suburban ow and s!arse buildings

"ural ow and s!arse buildings, but with lots of #egetation

Mountainous areas

"oad

$ndoor 

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P&inci'le o $adio P&o'aation and CW

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Pae !=

P&inci'le o $adio P&o'aation and CW  Te%t

 !ection 1 "asic Principle of

Radio Propagation

 Section 2 Theory of

Propagation odel Tuning

 !ection 3 Prpose of CW

Test

 !ection 4 "asic Principle of

CW Test 

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Pae !!

$adio P&o'aation #odel

Propagation &odel is sed to predict the e.ect of terrain@ o0stacle and arti$cial en'iron&ent on the path loss;

WCDMA co&&on propagation &odelsWCDMA co&&on propagation &odels

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Pae !(

 O9umu&a-Hata model

  @o&8 7>>#－ =/>>#H?

 COST!(=;Hata model

  @o&8 =/>>;!>>>#H?

 COST!(= Walf%h;I9eami model   @o&8 6>>#;!>>>#H?

  Beenan;#otle4 model

  @o& indoo& '&o'aation

P&o'aation model in UNET

  @o& mac&o cell on (>>#－ !>>># 

%!mm!n pr!pagati!n m!del$

Radio Propagation Model

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Pae !/

P&inci'le o $adio P&o'aation and CW Te%t

 !ection 1 "asic Principle of

Radio Propagation

 !ection 2 Theory of

Propagation Model Tning

  Section ! Purpose of "#

Test 

 !ection 4 "asic Principle

of CW Test

 

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