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RNC Dimensioning in RAS06

HSDPA Capacity RNC150

RNC300

RNC450

Max HSDPA peak rate per UE [Mbit/s] 10

Max HSDPA peak rate per cell [Mbit/s] 14.4

Max HSuPA peak rate per UE/cell

[Mbit/s]

2.0

HSDPA active users per cell 48

HSDPA active users @ 128 kbps UL 710 1390 2100

HSPA active users @ 711 kbps UL 750 1470 2230

Iu-ps HSDPA net bit rate [Mbit/s] 135 270 405

Iu-ps HSUPA net bit rate [Mbit/s] 41 81 122

HSDPA BTS 200 300 512

HSDPA carriers 600 900 1152

1(Mbps)tthroughpuIubaxm

(Mbps)dataCS

(Mbps)tthroughpuIubmax

(Mbps)dataPS

)Erl(AMRmax

)Erl(AMR

throughputIubmax%25(Mbps)dataCS

1)(max

)(

)(S384max

(Mbps)384

)(S256max

(Mbps)256

)(S128max

(Mbps)128

)(S64max

(Mbps)64

Mbps HSDPA

Mbps HSDPA

MbpslP

PS

MbpslP

PS

MbpslP

PS

MbpslP

PS

•In the mixed traffic the sum of relative loads of the four traffic types (AMR, CS, HSPA & otherPS) over the Iu-interface has to be less than or equal to 1.•

Relative load means dividing the offered traffic by the max allowed traffic value:

CS data is accordingto rule:

PS traffic:

High Capacity RNC RNC150 RNC300

RNC450

Number of subscribers 181 000 284000

360000

Busy Hour Call Attempts 240 000 375000

576000

Erlangs 4000 6250 8000

Iub throughput Mbit/s 150 300 450Number of carriers 600 900 1152

Number of BTS 200 300 512

AAL2UP Connectivity Mbps 1950 2800 3594

RRC connected mode users 35 000 70 000 100000

Max PS64 (Mbps) 120 216 344

Max PS128 (Mbps) 144 258 436

Max PS256 (Mbps) 153 302 452

Max PS384 (Mbps) 154 303 451

RNC – RAS06

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RNC2600 Capacity Figure

RNC2600 step 1 RNC2600 step 2 RNC2600 step 3

Number of subscribers 363 000 636 000 909 000

BHCA (CS) 575 000 1 000 000 1 440 000

Erlangs 8 000 14 000 20 000

DL Iub throughput Mbit/s 900 1 500 2 000

Number of carriers 1 440 2 100 2 800

Number of BTSs 1 440 2 100 2 800

RRC connected mode subscribers 100000 152 000 200 000

Iu-PS HSDPA net bit rate [Mbit/s] 810 1350 1800

Iu-PS HSUPA net bit rate [Mbit/s] 243 390 540

HSDPA carriers 1440 2100 2800

HSDPA BTSs 1440 2100 2800

Note: Capacities with NSN traffic mix

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HW Unit Comparison Between

Platforms

RF modules:• FRxy Flexi RF Module Dual 50 W

• FRxy Flexi RF Module Single 50 W – Frequency variant (x):

C = 850, D= 900, E =1700 or

1800,F = 1900, G=2100, I =

1700/2100

– Number of carriers per RF module

(y):

A = 2 carriers, dual 50W

B = 1 carrier, single 50W

C = 2 carriers, dual 50W / 2100

D = 1 carrier, single 50W / 2100

• WAFA/B/I/J/H/G/M/N/T/W

• WPAI/J/C/D/H/K/M, WMPA/C/M

• WTRB/C/D/G

• WICA

• WFCA/B/C/D, WUCM/A/B

• Bias-T

System modules: Baseband units:

FSMB/C/D System module • WAMA, WSMB, WSCA, WSPC, WMCM,

WPSE, IFUG

Flexi WCDMA BTS UltraSite/MetroSite(50) WCDMA BTS

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133 mm

3 HU

422 mm

without covers

560 mm

with covers447 mm

for 19 inch rack installation

Weight: 19-21 kg

Flexi WCDMA BTS Modules

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Management of the radio bearer

3GSGSN

RNC

3GMSC

RNC

RNC

Mobile has a single RRC

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3GSGSN

RNC

3GMSC

RNC

RNC

As the subscriber moves a second

connection is made for a cell on thesame site (softer handover)

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3GSGSN

RNC

3GMSC

RNC

RNC

As the mobile continues then the

first link is dropped, and a secondcell is added from another site (softhandover)

NOTE: Those BTS with anactive connection are knownto be part of the active set .

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3GSGSN

RNC

3GMSC

RNC

RNC

As the mobile continues then the second link

is dropped, and a second cell is added fromanother RNC. A soft handover is possible asthe Iur interface exists.

The RNC is known as the serving(S-RNC) and the new RNC is the drift

(D-RNC). Note that the Iu connection isstill from the S-RNC.

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3GSGSN

RNC

3GMSC

RNC

RNC

As the mobile continues, the third connection

is dropped. The S-RNC has no activeconnection's itself, so the Iu-RRC connection is

moved to the D-RNC.

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3GSGSN

RNC

3GMSC

RNC

RNC

Finally, the mobile is now in area where the forthconnection is dropped and the new site selected is

under another RNC. The S-RNC does not have an Iurinterface to the target RNC, so the core network is

used to assist in the handover.

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53415735-RNC