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SDR Basics and

Network Planning V1.0

GSMGSM Special Subject Training Material Special Subject Training Material



Outline:

•ZXSDR equipment family

•ZXSDR networking and cascade

objective

•ZXSDR maximum configuration

•ZXSDR’s R!RR tec"nical criterion

•Differences between S#SR and

$#SR

•$#SR networking in two waysZXSDR

%& ZXSDR seriesequipment introduction

II. STSR andOTSR networking

III. ZXSDRequipment p & o

•%nfluences over o ' p

IV. ZXSDRequipment

applications

• (ig" speed

railway areas

•$#SR networking

)ink budget

*apacity planning

*"annel planning

+requency planning

•%ndoor coverage

•$utdoor coverage



I. ZXSDR series eui!"entintroduction

. What is SDR?

2. What are the technological qualities of SDR?

3. What are ZXSDR series equipment? How aout the ma!imum configuration?

". What are the wa#s of networ$ing etween %%& an' R&(RR&?

). What is the ma!imum 'istance for RR& casca'e? What is the ma!imum numer

of casca'e tiles?

*. How to reali+e RR& casca'e s#nchroni+ation?

,. What is the ma!imum configuration for ZXSDR series equipment?

-. What is the asean' unit for ZXSDR equipment?

. What is the ra'io frequenc# processing unit for ZXSDR equipment?

/. 0irst technical specifications of R&(RR&1 Wor$ pattern? apacit#?

pplications? 4n'epen'ent networ$ing? With uilt5in cominer or not?

. Secon' technical specifications of R&(RR&1 6ower of set top unit? Wor$ing

frequenc# an's? %an'wi'th constraint? Sensiti7it#? ompatile with what

$in' of co7erage strengthening technologies? %asean' frequenc#5hopping

supporte' or not?

2. How is the carrier power allocate' for the multi5carrier ra'io unit?



1. #$at is SDR 8

SDR Software Dened RadioThe same radio frequency channel module can be dened

as dierent modes by software. For example, it can be

dened as S! sin"le mode, #!TS sin"le mode, or $#

dual mode.

%&SDR series products ma'e SDR come true



%. #$at are t$e tec$nological ualities o&SDR'

, multi-mode. multi-frequencyband. unified "ardware

platform

It is easier to realize te de!elopment

"rom #$%$ to '$

, platform structure of

separated baseband and radiofrequency

Te separated radio "requenc( makes it

possi)le to set up scattered )asestations% and more "le*i)le networking.

, baseband processing unit

built on u #*, structure

+etworks sare all te )oards e*cept te

)ase)and processing )oard.

, radio frequency unit wit"

broadband multi-carrier power

amplifier

+etworks o" te same )and can )e

con!erged onl( wit a so"tware

de"inition, wile tose o" di""erent )and

can )e con!erged onl( )( adding a R-

module.



R-#

/0#

R-#1

RS-2

Outdoor macro /TS

/S03

R002

R002

R-2

/0#4R002 to

"orm a scattered

)ase station

μTCA structure, 2U high.

Processing capacity of each UBPG (12

TRX carrier freuency!

"o #ore than $ %ase%an& processing

%oar&s for each 1B'2

Co#pati%)e *ith G+U &ua) #o&e

-TRX for a sing)e ca%inet

a/i#u# configuration0 12+12+12 or

-+-+-+-+-+-

)e/i%)e &ep)oy#ent, co#pati%)e *ith G+U

&ua) #o&e

For a single piece of equipment it can be expanded from

36TRX to 72TRX.

S2!2!2 or S6!6!6!6!6!6 maximum

configuration for a single station "it#out an

additional piece of equipment

S2$!2$!2$ or S$!$!$!$!$!$ is t#e maximum

configuration for a single station "it# an additional piece of

equipment. %&t present' t#e additional piece of equipment is not

a(ailable' t#e period of (alidit) of t#e aperture expires on 3st'

*ec' 2$$+.,

-ompatible "it# !/ dual mode

Indoor macro /TS /S00

(. #$at are ZXSDR series eui!"ent' )ow a*out t$e"a+i"u" con,guration'

/ dual mode multi0carrier

& single R116$ configuration is 06 S

carrier frequenc) or 0 /TS carrier

frequenc). T#e maximum configuration is

4/. %&t present' 2/ configuration is not

supported b) R1.2,

Outdoor micro /TS /S032 $2

& one0piece cabinet onl)

supports RS/6$' or

%toget#er "it#, more t#an

one R116$5 & di(ided

cabinet onl) supports t#e

configuration of R116$5

aximum

configuration S2!2!2

or S6!6!6!6!6!6

S1+$6 $6$ is a single

mode S product.



-. #$at are t$e was o& networking *etween BB/and R/RR/'

1 single station "or no more tan 2 cellsSupport networking wa(s5

Star topolog(% 6# ligt inter"aces "or 6# R-7RR-

8ain topolog(% RR- "or no more tan ' cascade

tiles,

9i*ed topolog(% "or '0 RR- at most



. #$at is t$e "a+i"u" distance &or RR/ cascade'#$at is t$e "a+i"u" nu"*er o& cascade tiles'

:or cain topolog(% te ma*imum num)er o" cascade tiles is

'

Te ma*imum distance )etween //- and te last RR- is

6km

R02 R02 R02 R02

$8m



2.)ow to reali3e RR/ cascadesnc$roni3ation'

The system can automatically calculate the delay between ((#and RR#, and ma'e a compensation for it. Since ((# will

measure the delay of each RR# and compensate for it, RR#

cascade synchroni)ation can be reali)ed.



4. #$at is t$e "a+i"u" con,guration &or ZXSDR serieseui!"ent'

/quipment types0aximum carrier

frequency for a

single station

0aximum configuration for a single station

1S2233

0ain piece 4

additional piece 5&t present' t#e additional piece of equipment isnot a(ailable' t#e period of (alidit) oft#e aperture expires on3st' *ec' 2$$+6

6$ S2$!2$!2$ or S$!$!$!$!$!$

0ain piece 36 S2!2!2 or S6!6!6!6!6!6

1S2733 36 S2!2!2 or S6!6!6!6!6!6

1S2738 9383 6$ S2$!2$!2$ or S$!$!$!$!$!$

1S2:33 6$ S2$!2$!2$ or S$!$!$!$!$!$

%t is suggested t"at S;<!;<!;< or S8!8!8!8!8!8 s"ould be t"e maximum for a

single station&

%f t"e configuration for a cell is no more t"an ;<#RX. one antenna and

feeder

is needed&

%f it is more t"an ;<#RX. t"ere are two possible solutions=

;& ,dd one antenna and feeder 5recommended6 9

<& ,dd one bridge 5>d1 loss. not recommended?6



5. #$at is t$e *ase*and unit &or ZXSDReui!"ent'

3 Power "odule : P6 ;<

3 Pro7ide !ower &or eac$ *oard8

3 De&ault setting is 19 and 11 *acku! is o!tional.

3 Site alar" : S; ;<

3 It integrates t$e &unction o& en7iron"ent "onitor andcontrol and t$at o& <1inter&ace. It !ro7ides 5 node!orts "onitors9 2 in and % out9 and 5 <1=1inter&aces8

3 1 ,+ed con,guration

3 >ontrol and clock and switc$ *oard : >> ;<3 It is res!onsi*le &or t$e switc$ *etween "edia strea"

and control ?ow8

3 It controls t$e clock and "onitors t$e insertion *o+8

3 @< inter&ace on t$e !anel is suita*le &or eit$er o!ticalor !ower access9 and is &or ;*is trans"ission. It also!ro7ides @PS antenna inter&ace8

3 De&ault setting is 19 and and 11 *acku! is o!tional.

3 Ai*er switc$ *oard : AS ;<3 It is used to switc$ I signal8

3 <ac$ AS *oard su!!orts 2 ,*er inter&ace9 used &orconnection wit$ R/ "odule8

3 De&ault setting is 19 and t$e "a+i"u" con,guration is%9 w$ic$ de!ends on t$e nu"*er o& o!tical !orts

3 @# *ase*and *oard : /BP@BP> ;<

3 It is used to deal wit$ *ase*and signal8

3 @S6 and #>D6; use diCerent t!es o& *ase*and

/BP@ or BP>E. One /BP@ su!!orts 1% =RX8

3 Aan "odule A;E:

3 It is on one side o& su*rack to dissi!ate $eat8

3 1 ,+ed con,guration

Po*er #o&u)e

Site alarm

Contro) 4 c)oc5

4 s*itch %oar&

Fiber

switch

boardGSM

baseband /

WCDMA

baseband

an #o&u)e



F. #$at is t$e radio &reuenc !rocessing unit &orZXSDR eui!"ent'

R-#

R-#1

RS-2

R002

R-2

RS-'/uilt;in "requenc(

module

Remote radio ead

module

$ single mode

dual;carrier

- single mode

multi;carrier

9 dual mode

multi-carrier$- dual mode

multi;carrier

$- dual mode

multi;carrier

R2283 9738!9;28@@$utput power of t"e set-top unit 83w

R2283 9732!9;22!92A2!9;72

@@$utput power of t"e set-top unit 23w



10. =ec$nical s!eci,cations &or RAP unit R/RR/ 1E

R/!RR/ t)pe ode -apacit) for oneR/!RR/

&pplications 4n'epen'entnetwor$ing? %uilt5incominer?

R/$2S single modedual0carrier

2TRXSuitable for lo"!medium traffic areas "it# no more t#an carrier for eac# cell

=es =es

R/$2&S single modedual0carrier

2TRXSuitable for lo"!medium traffic areas' and expanded to S b)integrating "it# R/$2

>o =es

R/6$/ dual modemulti0carrier

S 6TRX or

/TS - or4/ "#ic# is t#emaximum configurationfor t#e dual mode

S S2

configuration @ suitable formedium!large traffic areas'compatible "it# !/ dual modenet"or8ing configuration.

=es >o

RS/6$/ dual modemulti0carrier

S 6TRX or

/TS - or4/ "#ic# is t#emaximum configurationfor t#e dual mode

S S2 configuration'

suitable for lo"!large traffic areas or outdoor co(erage

=es >o

R116$/+$6!/16!/+$1!11!/191!+1

/ dual modemulti0carrier

S 6TRX or/TS - or4/ "#ic# is t#emaximum configurationfor t#e dual mode

S S2 configuration' in

form of scattered base stations'and suitable for some specialapplications' li8e rail"a) areas'indoor co(erage' and ultra longrange co(erage.

=es >o

6 TD-< unit in R-#%

and # antenna and

"eeder inter"aces on

te panel,

+o TD-< unit in

R-#1% no antenna

and "eeder inter"ace

on te panel,

So independent

R-#1 networking is

not e*pected% and it

can onl( integrate wit

R-# to "orm S'.

Strongl(

recommended radio

"requenc( processing

units=



11. =ec$nical s!eci,cations &or RAP unit R/RR/ %E

R/!RR/ t)pe

Set0top unit output po"er :

:or8 frequenc) band

:or8 band"idt#

Ssensiti(it)

Support offrequenc)#opping

-o(eragestrengt#ening

tec#nolog)S; 10<S;

R/$2$" @ uponcombination 2$:

29 @ upon

combination 2.9:+$$!1$$ 29!79 02dm

asebandfrequenc)0#opping!radiofrequenc)0#opping

*<-T!**T!F:*R!=R-

R/$2&$" @ uponcombination 2$:

29 @ uponcombination 2.9:

+$$!1$$ 29!79 02dm


*<-T!**T!F:*R!=R-

R/6$

6$: @ po"er

configuration percarrier

$: @ po"er

configuration percarrier

>S!+$$!1$$

/ dualmode 2$5 singlemode $

03dm

asebandfrequenc)0

#opping!radiofrequenc)0#opping

**T!F:*R!=R-

RS/6$1$: @ po"erconfiguration percarrier

9$: @ po"erconfiguration percarrier

>S!+$$!1$$!19$!+$$

/ dualmode 2$5 singlemode 9

03dm


**T!F:*R!=R-

R116$/+$6!/16


$: @ po"erconfiguration percarrier

>S!+$$!1$$

/ dualmode 2$5 single

mode $

03dm

asebandfrequenc)0#opping!radiofrequenc)0

#opping

**T!F:*R!=R-

R116$/+$1!11!/191!+1



>S!+$$!1$$!19$!+$$

/ dualmode 2$5 singlemode 9

03dm


**T!F:*R!=R-

Te )andwidt constraint

requires more

consideration a)out

"requenc( planning% somore di""iculties come

along=

Tis in"luences link

)udget% and di""ers "rom

te traditional co!erage

planning.



1%. )ow is t$e carrier !ower allocated &or t$e "ultiGcarrierradio unit'

RU+RRU type

The tota)output po*er

of the set6top unit 7

The configuration of #a/i#u#output po*er per carrier for R'.2

7

RU- -7

G < 8 )e9e)s17+127+1$7+27+7+:7+-7UT < 27+7+:7

RU- '7

G < ; )e9e)s17+127+1$7+27+2$7+7+:7+-7+'7UT < 27+7+:7

R''-GU;-+GU1'-

-7

G < 8 )e9e)s

17+127+1$7+27+7+:7+-7UT < 27+7+:7

R''-GU;'+G1''+GU'$'+G1;'

'7

G

< ; )e9e)s17+127+1$7+27+2$7+7+:7+-7+'7UT < 27+7+:7

R2&< version : t"e existing version ;<

;& #"e output power of eac" 9S0 carrier

frequency in t"e same radio frequency module

must be t"e same&

<& #"e degree of adjustment for eac" carrier

frequency must be t"e same w"en t"e power

level needs to be adjusted&

>& 9S0 carrier frequency number Bpower per

carrier frequency 4 0#S carrier power C t"e

total output power of t"e set-top unit

R7 version <

;& #"e output power of eac" 9S0 carrier

frequency in t"e same radio frequency module

can be configured respectively&

<& #"e degree of adjustment for eac" carrier

frequency can be different w"en t"e power level

needs to be adjusted&

. 9S0 carrier frequency number Bpower percarrier frequency 4 0#S carrier power C t"e

total output power of t"e set-top unit

nder t"is premise. t"e output power of eac"

carrier frequency can be customiEed in t"e

range of 3 t"e maximum value&



II. S=SR and O=SR networking

1. #$at is S=SRO=SR networking'

%. #$at is "ultiGcarrier co"*ining'

(. #$at are t$e &or"s o& O=SR networking'

-. #$at is t$e in?uence o& O=SR networking o7er t$e

Internet'



1. #$at is S=SRO=SR networking'

3 Sectori?ed TX Sectori?ed RX

: sectori?ed transmitter and

sectori?ed recei(er ;

3 co(erage ?one for eac# cell

: not including repeater s)stem ;

3 T#e same as traditional omni site or @

sector site net"or8ing

3 Amni TX Sectori?ed RX

: Amni transmitter and sectori?ed

recei(er ;

3 more t#an co(erage ?one for

eac# cell

3 Bogicall)' t#is net"or8ing allo"s

se(eral antennas of different

locations and directions to be in

one cell

3 ATSR can be reali?ed b) a

traditional po"er di(ider' or S*R

multi0carrier combining.

S#SR $#SR



%. #$at is 6ulti >arrier /nite>o"*ine'

!*#! < !ulti *arrier #nite *ombine

! RR# are connected with + antenna ! is a multiple of +,

-alues can be A /01

2o"ically, all the carrier of RR# belon"s to one cell @ the

downlin' si"nals of a number of RR# are the same @ and the

uplin' si"nals are combined throu"h choices.



(. #$at are t$e &or"s o& O=SRnetworking'

The form of !*#!

3TSR4/ 5/ station model reali)ed by!*#! needs / R6675 with / carrier

for each. The output power of the set4

top unit is 859.

3TSR reali)ed by !*#! doesn:t

incorporate extra loss.

The form of power di-ider

The form of power di-ider can bereali)ed by any base station form. Forexample< (656@ 3TSR4/ 3/ stationmodel with /TR& @ and a /59 set4topunit. 9ith the 8d( loss by powerdi-ider@ the power is reduced to59.

(y the use of powder di-ider @ 8d(loss is incorporated@ and the powerof the set4top unit is reduced by half.

R002

,nt;

3F

,nt<

83F

R002

,nt;

3F

,nt<

83F

Gower divider

>d1

$nly t"e

emission pat"

is drawn "ere&

Bogicall)' t#e t"o directions of

co(erage %$!6$, belong to t#e

same cell : bot# t#e

configuration and t#e c#annel

number are t#e same ;9T#e motion among t#e cells

co(ered b) t#e t"o antennae

doesnCt need

reselection!#ando(er among t#e

cells.



-. In?uence o& O=SR networking o7er t$einternet

%nfluence over t"e performance of t"e %nternet•Reduction of t#e reselection!#ando(er bet"een cells66

%nfluence over t"e frequency and t"e planning of t"e nearby cell•Ane cell ma) #a(e se(eral co(erage directions' possible coD adEacent interference on all directions needs

consideration. >speciall)' in cities of great intensit)' frequenc) planning is more difficult。•ig#0speed rail"a) co(erage s#ould use -/ ATSR' t#e distance of frequenc) reuse is increased' and t#e

planning is easier.•T#e increase of co(erage directions of a cell means t#e increase of co(erage range. So t#is is no longer onl) limited

b) t#e beam"idt# and gain of eac# antenna ， but more consideration is put into t#e nearb) cell.

##

#"e influence over t"e coverage and t"e planning of capacity•T#e recei(ed signal of t#e uplin8 @ antenna is combined t#roug#

c#oices， so t#e uplin8 recei(e di(ersit) gain is increased' and t#e qualit) of

uplin8 co(erage is impro(ed。•Since @ direction antennae transmit t#e same signal' so t#e do"nlin8 #as t#e

transmit di(ersit). T#at is' b) increasing an irrele(ant transmit energ)' t#e lin8

gain is impro(ed so as to confront -!= fluctuation caused b) multi0lin8 and to

impro(e t#e qualit) of do"nlin8 co(erage.•ATSR net"or8ing reali?ed b) S*R multi carrier unite combine can a(oid 3d

loss caused b) use of po"er di(ider' so t#e output po"er of t#e set0top unit is

guaranteed.•For ATSR net"or8ing' in t#e same logical cell' t#e same carrier of different

R/!RR/ must be configured on t#e same /<.•Bimited b) t#e relations#ip bet"een R/!RR/ carrier configuration and po"er

distribute' more attention is paid to t#e balance bet"een co(erage and

capacit).



III. In?uence o& ZXSDR eui!"ent o7er network!lanning and o!ti"i3ation

1. In?uence o& SDR o7er network ! H o 1E

%. In?uence o& SDR o7er network ! H o %E

(. #$at is t$e diCerence *etween ZXSDR and t$e link *udget o& traditional *ase station'

-. #$at is t$e out!ut !ower o& t$e setGto! unit o& R/RR/ wit$ diCerent con,guration'

. #$at s$ould *e considered o7er t$e calculation o& &eeder loss "ade * a distri*uted

*ase station'

2. #$at is t$e in?uence o& O=SR networking o7er link *udget'

4. #$at s$ould *e considered as to ZXSDR ca!acit !lanning'

5. Is t$e c$annel !lanning o& ZXSDR is t$e sa"e as a traditional *ase station'

F. )ow does "ultiGcarrier R/RR/ *andwidt$ constraint in?uence &reuenc !lanning'

10. #$at is t$e in?uence o& BB/ constraint o7er 6; con,guration w$en *ase*and

&reuencG$o!!ing $a!!ens'

11. <+a"!les &or t$e constraint o& ZXSDR eui!"ent o7er &reuenc !lanning



1. #$at is t$e in?uence o& SDR o7er network ! Ho 1E

%t provides t"e best smoot" evolution

plan towards #*$ radio network&

%t improves t"e network p ' o

tec"nology for t"e <!>9 convergence

Remote radio "ead composes a

distributed base station&

%t provides better network o ' psolutions for special scenes. e&g&. "ig"-

speed railway. indoor coverage and

dense urban spaces wit" complicated

transmission environment&

ZXSDR equipment supports baseband

frequency-"opping&%t enric"es frequency planning&



%. #$at is t$e in?uence o& SDR o7er network ! Ho %E

Hork bandwidt" constraint of multi;

carrier R-7RR-

makes frequency planning more

difficult&

#"e close relations"ip between t"e

power of set-top unit of multi;carrier

R-7RR- and its capacit(

makes t"e following planning and

optimiEation of network capacity

expansion more complicated&

*onfiguration of < set of data for $0*R

and $0*1

makes t"e implementation and

maintenance of t"e project more

difficult&



(. #$at is t$e diCerence *etween ZXSDR and t$e link*udget o& traditional *ase station'

8alculation o" te

power o" set;top unit

8onsiderations "or

"eeder loss

OTSR networking )rings uplink7downlink gain.

Dual;carrier is te same as a traditional

)ase station

Te power o" set;top unit o" multi;carrier

R-7RR- is equall( sared.

+o di""erence e*ists )etween te "eed line

connection o" SDR macro /TS and tat o" a

traditional )ase station.

8alculation o" "eeder loss "or a distri)uted

)ase station is di""erent.

>en SDR multi;

carrier radio "requenc(

processing unit is

adopted% it does not

need to con"igure"eeder arrester=



-. #$at is t$e out!ut !ower o& t$e setGto! unit o& R/RR/ wit$diCerent con,guration'

3+ow multi;carrier R-7RR- "ollows te

principle o" equipartition o" carrierpower B 1t present% "or R0.# !ersion% te

ma*imum output power o" eac carrier

must )e con"igured at te same le!el=

Carriernu#%er

RU2 +RU2A RU-+R''-(-7!

RU-+R''-('7!

G The #a/i#u#po*er per carrierG< (7!

The #a/i#u#po*er per carrierG< (7!

The #a/i#u#po*er per carrierG< (7!

1 : - '

2 : :

2 2 2$

: 2 1$ 2

$ 12 1$

- 1 12

GCarriernu#%er

UTCarriernu#%er

RU-+R''-(-7! RU-+R''-('7!

The#a/i#u#po*er percarrier of

G (7!


UT (7!


G (7!


UT (7!

1 1 : 2 - 2

2 1 2 2 2

1 12 2 2 2

: 1 1 2 1$ 2

Te output power o" set;top unit o" $S9

wit 0<S? modulation is a)out #d/ lower

tan tat o" $S9 wit $9S? modulation.

3I" dual;carrier R-#7R-#1 is S@S'% te

loss "or internal com)iner is d/.

66

##

$S9

single

mode

con"igur

ation

$7-dual;

mode

con"igur

ation

Te output power o" set;top unit o" -9TSper carrier sould )e #> at least. It can

also )e con"igured as > or '>. 1t

present% R0.# !ersion onl( supports te

dual mode X$46- con"iguration.



. >onsiderations &or t$e &eeder loss "ade * adistri*uted *ase station

%nstallation near

an antenna

;

RR/ and / is connected

b) fiber 9

RR/ and antenna is

connected b) !2G Eumper.

#"e installation

position keeps a

distance from

bot" 11 and

t"e antenna&

<

RR/ is installed on t#e

platform of a to"er : a

platform under t#e antenna;

@ or installed at t#e roof and

it is lo"er t#an t#e antenna 9

RR/ and / is connected

b) fiber 9

RR/ and t#e antenna is

connected in a normal "a) b)2 !2G Eumper 4 main feed

line %7!1G or 9!G or 3!1G

feed line,' t#e lengt# of main

feed line is t#e distance

bet"een RR/ and t#e

antenna.

. 2m HG loss for softer Eumper

2. 2 connector loss

Heightof

antenna(#!

=eightof

RRUon

p)atfor # (#!

Cength of,(-mainfee'line(#!

>ength of ? Dumpe

r (#!

2onnector

@lightningarrester

;(&B!

1'(&B!

$ $ : -@1 2.'; :.:

$ 1 : : -@1 2.$ .:-

$ 2 : -@1 2.11 2.';

$ 2 : -@1 1.8 2.1

$ $ 2 2 .2 .:

. 2I2m HG softer Eumper loss

2. ain feed line loss bet"een RR/ and

t#e antenna

3. 6 connectors loss

#"e table "ere is only for reference. in practice please

calculate according to specific conditions?



2. #$at is t$e in?uence o& O=SR networking o7er link*udget'

plink=plink=

Several antenna diversity receivers in one logical cell isSeveral antenna diversity receivers in one logical cell is

combined according to 0R*. so it is believed t"at t"ere iscombined according to 0R*. so it is believed t"at t"ere is

<d1 gain of I diversity receivers&<d1 gain of I diversity receivers&

plink=plink=

Several antenna diversity receivers in one logical cell isSeveral antenna diversity receivers in one logical cell is

combined according to 0R*. so it is believed t"at t"ere iscombined according to 0R*. so it is believed t"at t"ere is

<d1 gain of I diversity receivers&<d1 gain of I diversity receivers&

Downlink Downlink <<

Several antennae transmit t"e same signal& So by increasingSeveral antennae transmit t"e same signal& So by increasing

some irrelevant transmit energy. t"e link gain is improved tosome irrelevant transmit energy. t"e link gain is improved to

confront *!% fluctuation caused by multi-link and to get t"econfront *!% fluctuation caused by multi-link and to get t"e

downlink transmit diversity gain. at t"e value of < d1&downlink transmit diversity gain. at t"e value of < d1&

Downlink Downlink <<

Several antennae transmit t"e same signal& So by increasingSeveral antennae transmit t"e same signal& So by increasing

some irrelevant transmit energy. t"e link gain is improved tosome irrelevant transmit energy. t"e link gain is improved to

confront *!% fluctuation caused by multi-link and to get t"econfront *!% fluctuation caused by multi-link and to get t"e

downlink transmit diversity gain. at t"e value of < d1&downlink transmit diversity gain. at t"e value of < d1&



4. #$at s$ould *e considered as to ZXSDR ca!acit!lanning'

9utual constraints

)etween co!erage

and capacit(

Te ma*imumconstraint o" carrier

supported )( R-7RR-

and //-

OTSR networking

=f t#e number of carrier needed b) t#e cell is more t#an "#at a single

R/!RR/ supports' t#e increase of R/!RR/ s#ould be considered. ut t#equantit) s#ould not o(erpass t#e maximum configuration for a single station.

•*ual0carrier module R/$2!R/$2& is suitable for configuration lo"er t#an

S.-onfiguration for S3 s#ould be c#ec8ed b) a combiner to see if t#e

po"er of set0top unit satisfies co(erage requirement.•T#e po"er of set0top unit of multi0carrier module R/6$!RS/6$!R116$ is

s#ared b) eac# carrier. =f t#e carrier frequenc) for a single R/!RR/ is too

muc#' t#e po"er of set0top unit for eac# carrier frequenc) "ill be too

small. =n t#is case' t#e po"er of set0top unit s#ould be c#ec8ed to see if it

satisfies co(erage requirement. =f not @ one more R/!RR/ s#ould be

added to ensure t#at t#e carrier frequenc) for eac# R/!RR/ is proper. T#is

is especiall) important "#en t#e net"or8 is to be mo(ed B

:#en t#e logical carrier frequenc) for eac# cell is decided' t#e p#)sical

carrier frequenc) s#ould be calculated according to t#e quantit) of

R/!RR/ and antenna. T#e quantit) of /< board s#ould be calculated

according to p#)sical carrier frequenc) but not logical carrier frequenc).



5. Is t$e c$annel !lanning o& ZXSDR is t$e sa"e as atraditional *ase station'

For the hardware part, %&SDR has no limitation forchannel plannin" and con"uration, and the channel

plannin" is the same as a traditional base

station @ and it supports all types of channel <

3 SD**;

3 T*;

3 <D*;

3 ;R$FR

3 Dynamic$ static channel allocation

3 Dynamic channel translatin"



F. )ow does "ultiGcarrier R/RR/ *andwidt$ constraintin?uence &reuenc !lanning'

Tere are constraints "or te operation )andwidt o" multi;carrier radio "requenc( processing unit

AR-27RS-27R002B. +o matter it is )ase)and "requenc(;opping% radio "requenc(;opping% or no

"requenc(;opping% te multi;carrier radio "requenc( processing unit must )e con"igured wit a

center "requenc(. 1ll te "requencies o" all carrier "requencies in tis radio unit must not )e larger

tan 67# operation )andwidt a)o!e or )elow te center "requenc(. Cere are te detailed operation

)andwidt speci"ications5

6

@69Cz

# ' 2 E 0 3 6

6@#9Cz

RR-6 RR-#RR-

1G966

9ulti;carrier radio "requenc( processingunit t(pe

$S9singlemode

$- dualmode

+otes

RU-+R''- GU;-+GU1'-

1 2 . For / dual mode' t#e total band"idt# of 7 is not ac#ie(ed b)R D * engineers' t#at is S2 @ /TS 9.

2. The sing)e G #o&e of -7 #o&u)e is 1. Theconfiguration of freuencies #ust not %e )arger than $ a%o9eor %e)o* the center freuency.. The sing)e G #o&e of of '7 #o&u)e is 1$. Theconfiguration of freuencies #ust not %e )arger than 8.$a%o9e or %e)o* the center freuency.

RU-+R''- GU;'+GU1''+GU'$'+GU1;'

1$ 2



10. #$at is t$e in?uence o& BB/ constraint o7er 6; con,gurationw$en *ase*and &reuencG$o!!ing $a!!ens'

*onstraint of baseband

frequency-"opping

aseband frequenc)0#opping is

limited b) t#e processing capacit) of

*S< on /<' t#e number of

frequenc) point for &Bist s#ould

be no more t#an 2 E See t#e

example of -ell on t#e rig#t.

aseband frequenc)0#opping "it#in

cell but more t#an /<' 2

&Bist s#ould be configured.

See t#e example of -ell2 on t#e

rig#t. ere its frequenc) points are

configured on bot# /< and

/<2' so eac# needs a &list

(A2 an& A!.

-/<$68ell 67916 8ell# 7 91#

-/<$#8ell 791'8ell# 7 91

-/<$68ell 67916

-/<$#8ell6 7 91#

8ell678ell#78ell% wit 0 carrier "requenc( "or eac% wic uses

)ase)and "requenc(;opping% te 91Fist con"ituration is as

"ollows <8ell 67916 G 0 carriers, 8ell #791# G ' carriers,

8ell #791 G ' carriers, 8ell 791' G 0 carriers,

:or 8ell#% te con"iguration o" 91G0 carriers is not allowed B

:or 8ell6 wit 62TRX% wic uses )ase)and "requenc(;opping%

te 91Fist con"iguration is as "ollows <8ell 67916 G 6# carriers, 8ell 6791# G ' carriers,916G62 carriers is not allowed B

%t only influences 0, configuration

for baseband frequency-"opping.

and doesn’t influence radio

frequency-"opping?



11. <+a"!les &or t$e constraint o& ZXSDReui!"ent o7er &reuenc !lanning

J$&Scenarios

: RR-6G@69Cz 9 RR-#G6@#9Cz ;Kes!Jo 8

aseband frequenc)0#opping bet"een RR/ andRR/2 of t#e same cell and t#e same /<

Jes

2aseband frequenc)0#opping bet"een RR/ andRR/2 of t#e same cell' but different /<

@o

3Radio frequenc)0#opping bet"een RR/ and RR/2of t#e same cell

@o

Separate radio frequenc)0#opping on RR/ and RR/2

of t#e same cell

Jes

9:it#in one cell' some frequenc) points for basebandfrequenc)0#opping' and some for radio frequenc)0#opping

Jes

6An t#e same RR/' baseband frequenc)0#opping andradio frequenc)0#opping b) t#e same carrier frequenc)

@o

/&g&. t"e configuration of frequency point for bot" RR; and

RR< is ;30(E&



IV. Scenarios &or t$e a!!lication o& ZXSDReui!"ent

1. 7hat are the scenarios for the app)ication of XR euip#ent

2. 7hat is the app)ication of DTR for high6spee& rai)*ay )i5e

. 7hat shou)& %e consi&ere& as to the app)ication for high6spee& rai)*ay net*or5

p)anning

:. 7hat shou)& %e consi&ere& for han&o9er+rese)ection para#eters p)anning for high6

spee& rai)*ay app)ication

$. 7hat is the so)ution for DTR app)ication in cities of great intensity ()i5e =ong <ong!

-. 7hat is the app)ication for in&oor co9erage of a &istri%ute& %ase station )i5e

8. 7hat is the app)ication for u)tra )ong range co9erage of a &istri%ute& %ase station )i5e



1. #$at are t$e scenarios &or t$e a!!lication o& ZXSDReui!"ent'%&SDR is a series of base station equipment, and satises dierent

'inds of application scenarios=

#"e networking for a distributed base

station is more flexible. and is quite

suitable for t"ese scenarios=

(ig" speed motion scenarios @ e&g&. "ig"-speed railway or "ig"ways 9*ities of "ig" intensity w"ic" need t"ree-

dimensional coverage @ e&g&. (ong

Long 9indoor coverage @ e&g&. s"opping malls.

"otels. etc&M

outdoor coverage @ e&g&. deserts. sea

coverage&

/0#

R002 R002

0acro 1#S is suitable for t"e following scenarios.

e&g&. cities of "ig" intensity. urban areas. suburban

areas. rural areas. and roads& #"is application is

similar wit" traditional macro 1#S&

Suitable for $#SRnetworking to reduce

"andover!reselection

between cells



%. #$at is t$e a!!lication o& O=SR &or $ig$Gs!eed railwa like'

Se!eral RR- are con"igured in one logical cell%

connected troug OTSR networking

S(ncronized and undistorted remotion realized )(

//- and RR-

Te deplo( is "le*i)le% te construction o" network is"ast% and equipment rooms and oter kinds o" rele!ant

resources can )e sa!ed,

RR- supports cascade ierarcical remote @ and is

suita)le "or continuous co!erage "or )elt like areas,

Te con"iguration o" se!eral RR- in one cell is

supported% longer cell co!erage is realized% and

ando!er )etween cells is reduced,

/ecause o" te s(ncronized and undistorted remotion

and "requenc( o""set compensation )etween //- and

RR-% te qualit( o" co!erage is guaranteed.



(. #$at s$ould *e considered as to t$e a!!lication &or$ig$Gs!eed railwa network !lanning'

+etworkplanning

>at sould )e considered "or ig;speed railwa( network planningH

Co9eragep)anning

Co#pare& to the pu%)ic net*or5, the &esign of signa) )e9e) shou)& pay #ore attention to the fa&ing #argin &uring the ti#e ofhan&o9er ED9er)apping areas of neigh%or ce))s shou)& %e consi&ere&, especia))y rese)ection+han&o9er %et*een ce))sEThe )ocation of RRU shou)& not %e too far fro# the rai)*ay , no #ore than $# is suita%)eEChoice of types of antenna < =igh6spee& rai)*ay specia) net*or5 for#s a ri%%on co9erage, narro* %ea# )o%e, horiFonta) %ea#*i&this a%out $ &egree, is suita%)eE the antenna gain shou)& %e 1' 21&BiE the antenna shou)& not %e too high, an& it shou)& %e )o*er

than that of a pu%)ic net*or5, an& the suggeste& height is $ 1#E: TRX &i9ersity gain for up)in5E trans#ission &i9ersity gain for &o*n)in5

Capacityp)anning

The carrier freuency for each ce)) is ca)cu)ate& accor&ing to the nu#%er of passengers, an& the c)assic traffic #o&e) for high6spee&rai)*ay. The configuration of carrier freuency for each RRU is the sa#e in one ce))Ef possi%)e, areas a)ong the rai)*ay shou)& use the sa#e >AC to a9oi& freuent )ocation up&ateEDn >AC %or&er, CC= shou)& %e a&&e& proper)y to re&uce signa)ing Ha# cause& %y )ocation up&ate.

reuencyp)anning

The specia) net*or5 uses ; freuency point to re&uce the inf)uence of opp)er shiftEt is suggeste& that so#e freuency point shou)& %e reser9e& for high6spee& rai)*ay specia) net*or5 Ef the freuency point is share& %y a specia) net*or5 an& a pu%)ic net*or5, it is suggeste& that the specia) net*or5 BBC= #ust useTC= freuency point of the pu%)ic net*or5 for p)anning , *hen freuency p)anning is #a&e for high6spee& rai)*ay specia) net*or5. o itcan %e a9oi&e& that a su%scri%er is *rong)y connecte& to a specia) net*or5 ce)), *hen he po*ers on the phone near the specia)net*or5 ce))EThe )ocation of "CC of a specia) net*or5 shou)& a)so %e &ifferent fro# that of a pu%)ic net*or5 so as to guarantee the in&epen&enceof the specia) net*or5 *hen it is p)anne&.

"eigh%orce))sp)anning

The specia) net*or5 for high6spee& rai)*ay an& the pu%)ic net*or5 are re)ati9e)y in&epen&ent. The configuration of neigh%or ce))s areon)y for areas %et*een the station an& the pu%)ic net*or5. =ere are the specific suggestions0

Ce))s near the station an& the *aiting roo# are configure& as neigh%or ce))s to %e use& as a area for transition an& iso)ation%et*een the pu%)ic net*or5 an& the specia) net*or5E o it can %e guarantee& that the ce)) phones of passengers can %econnecte& to the pu%)ic net*or5 *hen their tra9e) is finishe&E7hen the train is #o9ing, there is no configuration of neigh%or ce))s %et*een the specia) net*or5 an& the pu%)ic net*or5,an& the configuration of neigh%or ce))s is on)y %et*een specia) net*or5sE 7hen the train is #o9ing, it shou)& %e guarantee&that the ce)) phone is *ithin the specia) net*or5E the ce))s, *hich are configure& as neigh%or ce))s for a specific ce)), are t*oce))s right %efore an& after that specific ce)), so the nu#%er of neigh%or ce))s can %e re&uce&.



-.1 Princi!les o& $ando7erreselection !ara"eters!lanning &or $ig$Gs!eed railwa station s!ecialnetwork cell

=mportant parameters Suggestions

RxBe(&ccessin & platform cell s#ould be 2d lo"er t#an a public net"or8.

-RA %c#oosing and reselection offset, & platform cell s#ould be $ d #ig#er t#an a public net"or8.

TA %temporar) offset, $

<T %penalt) time, $

-R

ando(er algorit#m

Set on uplin8!do"nlin8 #ando(er based on qualit)'uplin8!do"nlin8 #ando(er based on signal le(el' <T#ando(er' rapid signal le(el drop #ando(er %t#e rele(ant cellss#ould be a c#ain net"or8,.

<T t#res#old

=t is suggested t#at <T t#res#old of #ando(er from t#e public net"or8 to t#e special net"or8 cell s#ould be reduced.=t is suggested t#at <T t#res#old of #ando(er from t#especial net"or8 to t#e public net"or8 s#ould be increased.

S*-- #ando(er Set on %t#e platform special net"or8 cell,

ando(er preprocessing $ : t#e platform special net"or8 cell ;



-.% !rinci!les o& $ando7erreselection !ara"eters !lanning&or $ig$Gs!eed railwa c$ain s!ecial network cell

=mportant parameters Suggestions

-2 parameter s#ould be set onor not @o

ando(er algorit#m

Set on uplin8!do"nlin8 #ando(er based on qualit)' uplin8!do"nlin8#ando(er based on signal le(el' <T #ando(er' rapid signal le(eldrop #ando(er %t#e special net"or8 cell s#ould be a c#ain net"or8,

<T t#res#old

=t is suggested t#at t#e <T t#res#old of #ando(er bet"een special

net"or8 cells s#ould be 27 %3d,

S*-- #ando(er Set on

&(erage "indo" si?e 2

Be(el!qualit) #ando(er @!< 2!

<T #ando(er @!< 2!

Rapid signal le(el drop#ando(er @ (alue 2

T#e s#ortest #ando(er inter(al $

oFail<enalt)Time bet"eencells $

ando(er preprocessing $



. BB/RR/ O=SR networking in)ong ong

OTSR; as antennae "or directions% eac o" wic co!ers di""erent target co!erage areas.

-suall(% on eac direction% te target co!erage area is limited% )ut te target is speci"ic% "or

e*ample% a street% a )uilding% a sopping center% etc%.

1ll te RR- on tese directions )elong to one logical cell% so no ando!er7reselection is

needed "or tem,

1s to neig)or cell planning% o!erlapping co!erage on all tese directions sould )e

considered.#"is antenna covers t"e

streets below and t"e

residents buildings

nearby&

#"is antenna

covers t"e

residents building

rig"t in front of it&

#"is antenna covers

anot"er residents

building&

#"ey belong

to one logical

cell&



2. BB/RR/ indoor co7eragea!!lication

Feeder Fiber

%ndoor t"ree-dimensional

coverage covers all floors

and basementsM

#"e structure of 114RR

is easy to install. and its

networking is flexible& ,lso.it saves feeder loss&



4. BB/RR/ outdoor co7eragea!!lication

R002

;& (ig" gain antenna : ;2 <<d1i ; is used 9

<& R2283 is installed near t"e antenna on t"e tower so as to save

feeder loss. and to increase t"e effective radiated power 5/iRG6 of

an antennaM

>& $ne carrier for a single RR wit" 83H output power of a set-top

unit 9

I& %f t"e maximum coverage is over >Akm. dual timeslot s"ould be

set on& #"en. t"e capacity of eac" carrier is "alf reduced& %f

remote coverage of 2 timeslot is required. < RR will be needed&

#"e configuration is ; carrier for ; RR. and ; antenna for one

cellM

A& %f t"e number of RR for a cell is more t"an <. it is suggested t"at

an extra antenna s"ould be configured wit"out c"ange of t"e

output power of t"e set-top unitM

8& +or installation. t"e weig"t capacity of t"e tower and t"e

installation space for RR s"ould be considered&

;& (ig" gain antenna : ;2 <<d1i ; is used 9

<& R2283 is installed near t"e antenna on t"e tower so as to save

feeder loss. and to increase t"e effective radiated power 5/iRG6 ofan antennaM

>& $ne carrier for a single RR wit" 83H output power of a set-top

unit 9

I& %f t"e maximum coverage is over >Akm. dual timeslot s"ould be

set on& #"en. t"e capacity of eac" carrier is "alf reduced& %f

remote coverage of 2 timeslot is required. < RR will be needed&

#"e configuration is ; carrier for ; RR. and ; antenna for one

cellM

A& %f t"e number of RR for a cell is more t"an <. it is suggested t"at

an extra antenna s"ould be configured wit"out c"ange of t"e

output power of t"e set-top unitM

8& +or installation. t"e weig"t capacity of t"e tower and t"e

installation space for RR s"ould be considered&

(ig" gain

antenna

%nstallation of RR near

t"e antenna on a tower

11 can be installed

independently. or in a

macro station prepared&

sdr basics - copy

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