dynamic pilot power control

5
DYNAMC PLOT OWER AOATON N CDA SSTE Jug, M Shh F Drkshn Lucn Tchnologies Ntwrk Sytm GmbH uux tre 1941 umbr/y Emai: {umchahdkan}@uctcom F +9911 60 Kyrds CDM tm l btng et pot power ocaton do mo Absr In ths per a w conct o h pilot powr aotio in ce son mUpe as (CDM) moi ommu- ton yte is todued he dwk of nowdy on st pt powe aoon e se el atn f f. T nrod ocpt f dyn pot pw o- to h t pt te au plt pwr aorn to te t d tuatn n te l. h o te one hn t o mo n b ue w e l i ow a coon nd o te othr hand mor subriers  b ev gly oded l T reu n ed ora caiy o t A syst Inrdu ody CA mob ommunon yt o m pot can e conou bdcs at a otn powr n e own to ow itco eceit ll murmen. Th rsmt owe the mo pot cal crcl t detme t oe of trouh gnneren rtio mrm As rom t sout anmt pwr h nrr l t nwok ee ect quaity a mobl. One ko e tat occu o otat pot pw - oton th oc ll bhn he l w lw eee ve co g aa than oe wit gh ntrrence lv. ote fft t mntn is t - tern au t lot can em t w lod ad r o t te nteren e low, then h nerfrnce nwrk s maiy ued b lo caes the cruns t ow ht i tilse sr mo n dict chnn mnly td b po hn inrenc. akn t drwbacks f cotan o pwr loion n out we tod alohm wr po pwr, ll n il Moble ommuat yem S networ date to the pacua ow onto By yical justng t t power inte l wl i emon a be gi ant reuc w twork ca mnt h peon o te opoed agtm s gtd w o nac st imatr t b obrd t whn pyig th dnc pot pwr cti cm t ovea cc of t sytem nre he pa s orge olw ton w nodue dymc pt powr ocaio chm en, co h saton too a te nvestitd nio e ed n 4 ow ome smaton rsuts an h ovl pty ga t lgor i l n eton oncuin drw lgrhm oway M mol oton sytm s opt contt o pwr of 10% of t mmum pow o t rdo mir 2] ypl m ml- ppled g ot w f  dB. Dg two o the plt wer res ntat ut nt ot power s crae te syem nr et c rthn . umr o the powr eem o be to hh f low lodd wch unne l crae ntern l d t o sn u t dtg f th plt pwer s nmc adaptd o h c e oa to mt pnn cor a ara h cr a   l om s i th ll l ras ue to etoo o t to o R on lo hnl t cll g us mobl ti the e w nt ae o ook into e o e ercton t ot pow hosen w t supo od els u wi be orszd o ow oad ces a thu d o h te oru on an ro sion y runnin nac ytem ions t av e ca pay a un o er o a o s lo pw ng wa ttd Tn or ctd pot ow ttn mmu c oa was dtemi t wh he proba tha mol is a t oo into th ell ow n trhold . 0. gur n ecton s sut a rati etw g el lod i downlnk iecto ad plo wr   was found PC/H = · P +    wh d w appom to numa dm to bta y ystm l smon he new plt

Upload: is-in

Post on 06-Apr-2018

217 views

Category:

Documents


0 download

TRANSCRIPT

8/3/2019 Dynamic Pilot Power Control

http://slidepdf.com/reader/full/dynamic-pilot-power-control 1/5

DYNAMC PLOT OWER AOATON N CDA

SSTE

Jug, M Shh F Drkshn

Lucn Tchnologies Ntwrk Sytm GmbHuux tre 1941 umbr/y

Emai: {umchahdkan}@uctcomF +9911 60

Kyrds CDM tm l btng et pot powerocaton do mo

Absr

In ths per a w conct o h pilot powr aotio ince son mUpe as (CDM) moi ommu-ton yte is todued he dwk of nowdy onst pt powe aoon e se el atn ff. T nrod ocpt f dyn pot pw o-to h t pt te au plt pwr aorn tote t d tuatn n te l. h o te one hnt o mo n b ue w e l i owa coon nd o te othr hand mor subriers   b ev gly oded l T reu n edora caiy o t A syst

Inrdu

ody CA mob ommunon yt o

m pot can e conou bdcs at a otnpowr n e own to ow itco eceitll murmen. Th rsmt owe the mopot cal crcl t detme t oe of trouh gnneren rtio mrm Asrom t sout anmt pwr h nrr l t nwok ee ect quaity a mobl.One ko e tat occu o otat pot pw -oton th oc ll bhn he l wlw eee ve co g aa than oe wit ghntrrence lv. ote fft t mntn is t -tern au t lot can em tw lod ad r o t te nteren e low, then h nerfrnce nwrk s maiy ued b

lo caes the cruns t ow ht itilse sr mo n dict chnn mnlytd b po hn inrenc.akn t drwbacks f cotan o pwr loion nout we tod alohm wr po pwr,ll n il Moble ommuat yemS networ date to the pacua ow onto By yical justng t t powerinte l wl i emon a be giant reuc w twork ca mnt hpeon o te opoed agtm s gtd w o nac st imatr t b obrd t

whn pyig th dnc pot pwr cti cm tovea cc of t sytem nrehe pa s orge olw ton w nodue dymc pt powr ocaio chm en, co h saton too a te nvestitd nio e ed n

4ow ome smaton rsuts an h

ovl pty ga t lgor i ln eton oncuin drw

lgrhm 

oway M mol oton sytm sopt contt o pwr of  10% of t mmumpow o t rdo mir 2] ypl m ml- ppled g ot w f  dB. Dg two o the plt wer res ntatut nt ot power s crae te syem nret c rthn . umr o the powreem o be to hh f low lodd wch unnel crae ntern l d t o snu t dtg f th plt pwer s nmcadaptd o h c e oa to mt pnn cora arah cr a   l om s i th ll lras ue to etoo o t to oR on lo hnl t cll g us mobl ti the e w nt ae o ook into e oe ercton t ot pow hosen w tsupo od els u wi be orszd o owoad ces a thu d o h te oruon an ro sion

y runnin nac ytem ions t av e capay a un o er o a o slo pw ng wa ttd Tn or ctd

pot ow ttn mmu c oa was dtemi twh he proba tha mol is a t oo into thell ow n trhold . 0. gur necton s sut a rati etw g ellod i downlnk iecto ad plo wr   wasfound

PC/H = · P +   

wh d w appom to numa dmto bta y ystm l smon he new plt

8/3/2019 Dynamic Pilot Power Control

http://slidepdf.com/reader/full/dynamic-pilot-power-control 2/5

pw e  H ded s uput rttnger with ter ac h ltg w us so tat thepi pwe  is chaged moohly a g t t aatn, Te e lad downlik cn  sdefd s o [I]:

he DCH is he urent tste poe f the base tt r th deated hel mm he trsitdw f th coon hans and is e ximmp prde by h an e W

3 Simulaton Scearo 

Th eac o h pped dync pi po ada-an hm hs been eved y mens o nmeimul e e the ymc yte iuln tolT Simio o th vtion Alghms ne nw) wch h een dscribe n 2] he p-se th i th nvtigaon a vd e ynm tok aiu The to w muag l ue e number mong obi emnas a  mu- en mt t ue to be of a reor mngmet agotms n eae( s a n hdoe e he ra eok efoa. Ro i qt a cl permance etcay evalate Pe pamees nukig pbity h obbi tat obl can b

h l no el" n rhp e d tE mato's bad n a prate pah lossmap w ddi be aamets Fgu 1 o gated SAM l cenao with ae tn B NdB n nuu e satn (UE usr 

qupme.Fr the  vio ue rg le af xagaao raped n e orde w h cd ps p le y a a hdwn ros. heao pramter ht e e te stn edpi i e W hae et a pe tl del cnsdegaxiu atio onig a sein mbin  for stnd ste hndv repiy. F u nvns thenmbe simune lik was scte a mxm u he ins r di an dpng a lin e e o dB ad dB epecte f.

 

# f B t / 2 3 seo ach lesctr s a wraped oudPth l ol O umr a u

e au 00

hd di 5 d stanard ein200 m en l

mot 50 h an see kh tdd etio

b Sn pmetr

TE I ; -m  tl1-,� "1iIf'D=; �," - ._�nf � lAO,  9f-

:i O a[�JLl' f:< !

My_; : Acle : i i 

o263

C

Cl al 3

CI.

no" 0 H

U

\ trmfi £! 1o C

( sl�c /

02

ULl rXp' "59dm

\

, E

tai �

eb-

2

7

n )

F

Oh ulJ

: /. s W

di

HI.91 � 

\ 8

G U P ·4 O 3 Im

M sa sar,

8/3/2019 Dynamic Pilot Power Control

http://slidepdf.com/reader/full/dynamic-pilot-power-control 3/5

od cnt hs bn apped ung the downn cla, Equin W app msson n ngsonoto as we s nm dt rt aaptto (dynaber conto DBC [4]) Te packt daa contl agohm gorithm ngotts te ud a t ng

a ep depndng o the cnt ld staon o hel t. hi le bu on onoschm admts high data r anmon g 3 bpi h ce d

'  lw h ow mon hsho

 rDBc d a ow dat rat wh h ell od is beow thhgher dmon thehod r" or the ow daes uhermo DB gom a u  novod stuas ongton on nd rus hdt rte a wh nsume r amon o had sous whn he od hs ben dtcd o o the ongeson thl w nall the dat ate i dted to he tu conitns Fr instnn h mobile mmnn syt tutn mour whre th ro lin o pi usr oms

we wth ncsng pbbilty ong th nnctionThn s bnfa to redu t ate oer tmna h aio lin. Moroer if t rdo iine eter a cn mount of dt as t berm ed (bur   shod t t t te s n-cred gan a a time ncre e) p (ds-n conto i pfmd The ppld ad ontro prts e ummed in ae

t tt

C 50%

rsion 75%cnsi 0% tr 50 ky

nr tm ond

e : ontr aramet fr dwl.

U sc svc pa t Ta Th mos ue a pket e p wh mmu r 38 kbps trmore dt wlkt aes pos A s po a ndm wkwith he vel oi ivn n abl . Wthin th nvtig tns w a k dwod s n new al. hs a t owng a Poson pcs aoding oh frd lad I vl rt my di-ut ov h smuto a h s ctt w t

  to A I  srvi) nd   h lok a ws

amd as BER = % h phy ly pame na nmy reurd J nd ereneato F (with an without s hando tan romnk ar smulation h owng the hosn pmters fo the namcpot per apin gothm e ls se EqutnI» = 3 W and = 004 W h cl d s bow

= 8   th pilot pow mt o 03 W n ce od s b 6% the plo powr s mt t 2 W h f atoJw t to 000

7

ere Peer egake sere D d ats 36/8

38 bps (rbUL t re 6 ks(xd

Dt oum D I M

Atit BL BE %

Tbl 3 Sce pmt

Peer Stg

L R = 64kp E = 30 BD R = 3 = 5564 dB SHO)  R 128 E = 45526.0 B (SHO  Rh 6k  E 50565 dB SO  R 32kbs 62.0 B SO)free ft 08.55/060 (SHO

hy la pmet

gr 2 ps he pot owr s funion o h r-ge downk D lod ng n e hnd th estm-  tn fo the tm e mulaon and on the therh th ppxmatd ln fuo n uto IBoth us oughy nta ooe th funtonn ai dae othe hau th sm ptng th rrs d n uato )

n ltn ppxd tn

,-

B J '

0a OB

 

,

- _

. % 0 0 0%  

A�.rg DL

gue : i o pw s fncton t aag ad

pbty(no l <

4 Smuln Rsus 

n gu pblit tht no l ould be foun (nocl t du to oerg pms at th c dg) mped wth te sum f bok n rpping roblty or otnt plt powr of 2 dBm n Fg 4f 33 Bm as w n gu 5 for h ropod adp ti ghm

8/3/2019 Dynamic Pilot Power Control

http://slidepdf.com/reader/full/dynamic-pilot-power-control 4/5

ll 9 = 25 ".Ip. = 2

4.5%

.

3%

! 0

� 1 2

1

0

{ - t •

I I   ,

• I ' j 1 I l

- ; - L "

I

- • !

·

0.% +--_-+I=:i=-�-_  0

veg ol tbup [k$J

Figue Coaron e oalty tat n el an beound wh the bocng n doppn probbity r otnt p pwr dBm.

l Rb r kQ• Rl power �

4.

5

l. 0

.0% I--.-_t:_

a cl nhp1 :]

gu mpn o h paby ta o ce n ben wi e g n opping babiy o aontant i pwer 3 dB

In the llwing thee 3 ei a died at an otage pbaty o 2 The og pbay the um o 

bkng prbility due o adin otl tec png pbty du t ad rdo nk qaty ndngton on wel th babity a no ellcud fund piot ower w st o conany dB ·the mstoen asn fo ug the no c eent d o crae pbem a te el edge whn th e lad incess.H n er c tpu f bot 68 bp cldbe uppord b w nant rg prlm c dg

ilt e BkJa., Adp1iv pi

.-4

03. 5% 

� �

0.% 1-=r.� 4 60 80 0

A ig p

Fu 5 ompron th pbab tha no an beound wh te bocking nd drng ity ungh ropsd adp gotm.

O th ot hnd i th plt ower a t nany dBm okn/png the ma reon r e u-e te n c eent o nt ppa ere, an eageell hoght o oy 38 bp w eached sng th poe adt gothm, o ongdrppng mn ron o otage t he a an petag o o l" ent w teat e.g.bo 0.5% w h st is fuly oadd h ooe lad n ve cl huh f . b 5 s he eus

pwr ThRp @29 ue

Bm 68 p 9 )3 d 3 ks (% n ce"Adptive algorthm 8 b (4 no ce")

Tb Ret mry

n gr 6 the otg pait s a ncto o  h ag e thgpu s dd. A sen ung a on-snt pi wr of  dBm p h on app-n the rped adpte lgoitm ady odabo at 2 out an verag el trouht  8 bp was ued e onant pot per 3 dB Bt pyig the pod dpv am

vrag ll tgp of abut 8 bp a b aheedwh s uent a gn f b ny gr 7 dpt tot tami pwer NeB fto h ege el thrgut th ens dsuse bv h rults y ndcatetat ou prpo at auss t NodB rdia ss pw han the c sn cnst pt pow   Bm em a a lw tght t rdat pw s as h scai sng onst m n a g c adg moe pw sned to srve ers at t ll ed.

8/3/2019 Dynamic Pilot Power Control

http://slidepdf.com/reader/full/dynamic-pilot-power-control 5/5

\ dBm Aapte i power!

10%

9

%

l

5S

%

1

%10 3 60 7

vg

ig 6: Oge VS verae e rugp applng ansan p pwer f 3 dm nd te prpsepti algorthm

w " d ANe ef r " Bm

! �E 8.� oZ

o� 60 B

g huhu [kb]

ig : a NdB mt pwe a a non eaeg cel rougpu

29

5 Cu

h pped dynm pilt owe daptn athmnrae h oea s apa ekeping pobii f n e to e f due o c

eg pe) at an ptb eeL n in rra enrnmen applng pket a ranmion ededited anns wt dta ae adapa owed ht  ghput gin b 50% an echd cmed en wth onstnt pi pw of d (a eal g of % At te ame m rd msn n e reded whn h ell is in w ded cndin Fin he gm n exy e dped t er requren wih th i f e pramee etn a c

nd '

Referees 

[ G S 2521 Pc lae - Memet

F V20 (2006, (Res 199.[2] U Bd  E Jg Mueenhm H Pmp

M. Soeln "Ingen Mngmen R R-oue n UM Me Comuniain stems Ta Ja l 7, n. p 1016, (2003).

Ho and A Toaa (ed WD for MS on ly e Yo 002).

] E ug Mkenh H. mpel "Peforane Evln na aa Rate dptt n e MTS edaed hnnel in o lG ndon, pp 104-108 (une 003