RAN13 0 RNC 6900 Dimensioning Configuration_with HW69 R13 boards.pdf

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Huawei Confidential 1

附附附附录录录录:

RNC BSC6900 V200R001 Configuration

www.huawei.com

RAN13.0 BSC6900 UO Dimensioning

& Configuration


Content

• BSC6900 Overview

• BSC6900 Dimensioning

RNC Dimensioning Principle

Input from Operator

Control Plane Dimensioning

User Plane Dimensioning

Transmission Dimensioning

• BSC6900 Configuration



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BSC6900 Overview : Hardware Configuration

• MPS: Main Process Subrack

• EPS: Extended Process Subrack

MPS(Minimum configuration)

EPS

EPS

EPS

EPS

EPS

MPRcab inet EPRcabi ne t

Maximum confiuration

2 cabinets ( MPR + EPR )

6 Subracks ( 1 MPS + 5 EPS )

Minimum configuration

1 Subracks ( 1 MPS )


All IP Based RNC

Up to 24Gbps Iub DL+UL throughput

Cabinet

Huawei standard N68-2 cabinet:

• 2,200mm(height) x

600mm(width) x

800mm(depth)

• 46U available cabinet space

height

MPS (RNC Switch Subrack)

RNC Switch Subrack:

• 28 slots

• Centralized internal MAC

switching(480G)

• O&M interface and system clock

signals

• Control plane signalling process

• User plane traffic process

• Interface for connectivity

EPS (Extended Process Subrack)

Extended Process Subrack:

• 28 slots

• Internal MAC switching(480G)

• Control plane signalling process

• User plane traffic process

• Interface for connectivity

12U

500mm436mm

600mm

2 2 0 0 mm

800mm

BSC6900 Overview : Cabinet & Subrack



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Feature

• Centralized OMA Unit

• O&M interface

OMUc

Feature

•MAC switching

•MPS/EPS OAM

SCUb

Feature

•User traffic process for CSIUUP/RTP(IP) / PS

PDCP/RLC/BMCMAC/FP

•Macrodiversity / Ciphering

•MBMS U-plane PDCP/RLC

DPUe

Feature

•Clock and RFN source

•GPS(GCGa)

GCUa / GCGa

Feature

•Control Signaling processSS7/RRC/NBAP/RANAP/RN

SAP/SABP

•RRM/TRM

SPUb

Feature

•ATM E1/STM-1 interfaceboard (AEUa/AOUc/UOIc)

•IP E1/STM-1/FE/GEinterface board

(PEUa/POUc/UOIa/FG2c/GOUc board)

INT

Basic HW

Traffic & interfaceprocessing HW

Only 6 kind of boards, reducing the OPEX cost. NIUa and SAU is optional according to special

requirement

Basic OMUc and GCUa/GCGa boards only exit in MPS, other boards exist in MPS&EPS

Traffic & interface processing boards can be configured in MPS&EPS according to the requirements

BSC6900 Overview : Boards（（（（HW69R13））））

Feature

•OM Star

SAU

Feature

•DPI function

NIUa

Special req.


BSC6900 Overview : RNC configuration Components

Item Name Description Deployment

1 Cabinet Each cabinet can house a maximum of three subracks. Mandatory

2 Subrack (MPS) The EPS provides slo ts for housing service processing unit s and interface

boards.

Mandatory

2 Subrack (EPS) The EPS provides slo ts for housing service processing unit s and interface

boards.

Optional

4 Clock board The clock board provides system clock signals. Mandatory

5 DPUe The s ignaling processing unit provides cont rol p lane process ing capability(BHCA and Node B).

Mandatory

6 Hardware Capacity

License (165Mbit/s)

The hardware capacity license (165 Mbit/s) provides 165 Mbit/s data

processing capability. It can be configured only for DPUe. .

Optional

7 Hardware Capacity

License (300Mbit/s)

The hardware capacity license (165 Mbit/s) provides 165 Mbit/s data

processing capability. It can be configured only for DPUe. .

Optional

8 SPUb The s ignaling processing unit provides cont rol p lane process ing capability

(BHCA and Node B).

Mandatory

9 NIUa Network Intelligence Optional

10 NIUa license Network Intelligence Processing Throughput Optional

11 Interface boards Interface boards terminate the protocols on various interfaces and provide

traffic processing functions. According to the application requirements, an

interface board may provide STM-1, E1, GE, or FE por ts.

Mandatory



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BSC6900 Overview : Expansion

Smoothly expansion from 1 subrack to 2 cabinet (6 subracks) based on 3 dimensions

EPS

EPS

EPS

MPS

EPS

EPS

TRM

Interface

board

D

PUe

D

PUe

SPMSPM

S

PUb

S

PUb

User trafficUser Traffic Processors

Signaling LoadConnectivity

S i g n a l i n g p r o c e s s o r s

C a p a c i t y

H ar d w ar e


Content




Input from Operator







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RNC Dimensioning Principle - Scale

User traffic

User traffic boards

Signaling load

Connectivity

S i g n a l i n g b o a r d s

Control plane is dimensioned by BHCA and Cell/Node B number, concurrent active users;

User plane is dimensioned by CS Erlang, PS throughput, Cell number, concurrent active users;

Transmission is dimensioned by traffic capacity, bandwidth, Session setup/release, Node B number,

concurrent active users;

Control Planecapability

Transmissionlimit

RNCCapacity

User Planecapability

Erlang processing

capability

PS processing

capability

BHCA processing

capability

Transmission Limit of

Interface boards

Ports limit


RNC Dimensioning Principle - Step

Review live network traffic load for capacity expansion andDimension update

Input operatortraffic model and

Configuration

Control Plane dimension output(BHCA)

Transmission dimensio n output(Session setup/release times,

Erlang, Throughput)

Livenetworktraffic

User Plane dimensionoutput (Erlang,Throughput)

Cabinet &

Subrack

SPU board

DPU board

Interfaceboard

Node B, Cell



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Content




Input from Operator






Input from Operator

Input from Operator

Network parameter Traffic Model

Subscriber

NumberNode B, Cell

Number

Transmission

ParametersUser PlaneParameters

Control PlaneParameters

Other

Parameters



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Network Parameter – Subscribers, Node Bs, Cells

Total Subscribers

Total Node Bs

Total Cells

Network parameter


Network Parameter – Transmission Parameters

Iub

Physical bearer

NodeB number

Total E1 number

IuCS Physical bearer

IuPS Physical bearer

IurPhysical bearer

Direction

Network parameter



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Traffic Model – User Plane Parameters

User plane traffic parameter Unit

CS Domain

Voice Traffic per CS voice sub in BH(Erlang ) Erl

Proportion of soft Handover for CS voice call %

CS data traffic per CS data (Video Phone 64k) sub in BH (Erlang) Erl

Proportion of soft handover for CS data call %

PS Domain

PS throughput (Including R99 and HSPA, UL+DL) per PS sub in BH (bps) bps

Proportion of soft handover for PS call %

proportion of PS throughput(based on UL/DL32/32Kbps) to total PS throughput %




Proportion of UL PS(Including R99 and HSPA) throughput %

HSDPA share of DL PS throughput per sub %

HSUPA share of UL PS throughput per sub %


Traffic Model – Control Plane Parameters

Control plane traffic parameter Unit

CS Domain – Voice

CS voice call per sub per BH times

Handover t imes per CS voice cal l ( Inter/Intra RNC soft&sof ter handover) t imes/call

CS Domain - Data

CS Data call per sub per BH times

Handover t imes per CS data call (Inter/ Intra RNC soft&softer handover) t imes/call

PS Domain

PS call per sub per BH times

MHT (mean hold time) per PS call s

Handover times per PS call (Inter/Intra RNC soft&softer handover) times/call

PS channel switch per PS call times/call

NAS Domain

NAS signaling per subscriber per BH（times） times/per user

• Note1:NAS signaling includes all CN-UE signaling (LA update, RA update, SMS,IMSI attach/detach, GPRS attach/detach).

• Note2: Above table only list mainly signaling procedure, not including Cell update, relocation etc..



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Traffic Model -- PS parameter

PS parameters Unit

General phone Penetration Ratio (% of T otal Subscribers)

(General phone) PS call per sub per BH times

(General phone) MHT (mean hold time) per PS call s

(General phone) Handov er tim es per PS call (Inter/Intra RNC sof t&sof ter handov er) tim es/call

(General phone) PS channel switch per PS call times/call

(General phone) PS throughput (Including R99 and HSPA, UL+DL) per PS sub in BH bps

Smart phone Penetration Ratio (% of T otal Subscribers)

(Smart phone) PS call per sub per BH times

(Smart phone) MHT (mean hold time) per PS call s

(Smart phone) Handov er times per PS call (Inter/Intra RNC soft&softer handov er) times/call

(Smart phone) PS channel switch per PS call times/call

(Smart phone) PS throughput (Including R99 and HSPA, UL+DL) per PS sub in BH bps

Data card Penetration Ratio (% of Total Subscribers)

(Data card) PS call per sub per BH times

(Data card) MHT (mean hold time) per PS call s

(Data card) Handover times per PS call (Inter/Intra RNC soft&softer handover) times/call

(Data card) PS channel switch per PS call times/call

(Data card) PS throughput (Including R99 and HSPA, UL+DL) per PS sub in BH bps

The “PS Domain” parameters (include user plane and control plane) of previouspage can be seen as a weighted average of PS traffic of different terminals.


Traffic Model – Other Parameters

Other related parameters Unit

MBMS penetration ratio (Cell) %

MBMS Iub throughput per cell kbps

MBMS IuPS throughput kbps

IuCS signaling throughput ratio %

IuPS signaling throughput ratio %

Iub signaling throughput ratio per site %

Iub OAM throughput per site kbps

Traffic throughput ratio between Iur and Iub %

Iur signaling throughput ratio %



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Content




Input from Operator






Control Plane Dimensioning – BHCA

Step1: Calculate the BHCA requirement of network

Sub)perbhcaPS+SubperbhcaDataCS

+SubperbhcaVoice(CS*sSubscriberTotalSubperBHCA*sSubscriberTotal=rementBHCA_Requi

=

Note: Traffic model information will include total subscribers and voice, CS data and PS data calls per user per BH.



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Step2: Calculate SPU BHCA capacity ( based on given traffic model):

Control plane traffic parameter UnitTrafficmodel

weightValue

CS Domain – Voice

CS voice call per sub per BH times A W1

Handover times per CS voice call (Inter/Intra RNC soft&softer handover) times/call B W2

CS Domain – data

CS data call per sub per BH times C W3

Handover times per CS data call (Inter/Intra RNC soft&softer handover) times/call D W4

PS Domain

PS call per sub per BH times E W5

Handover times per PS call (Inter/Intra RNC soft&softer handover) times/call F W6

PS channel switch per PS call times/call G W7

NAS procedure

NAS signaling per subscriber per BH（times） times/per subscriber H W8

Note: “Wx” of “weight Value” column means the SPU CPU value consumed by the signaling procedure.



Step2 continue:

Sub per Load sourceCPU SPU subof number Supported __ / Re_____ =

8*7**

6**5*4**3*2**1*

)_:(__

W H W G E

W F E W E W DC W C W B AW A

usageCPU unit Sub per Load

++

+++++=

Note:

BHCA_per_sub = A + C + E

SPUa_CPU_Resource = 60% * 3600 * 4,

SPUb_CPU_Resource = 60% * 3600 * 8,

60% = 70% -10%, 70% is overload threshold of CPU, 10% is the CPU load when no traffic.

MPU has not been considered.

Steps and formulas:

(1):

(2):

(3):sub per BHCASubof Number Supported

eltrafficonbased SPU BHCA

__*___

mod_____

=



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Control Plane Dimensioning – Node B, Cell

= Node B requirement

= Cell requirement

Node B

Number

CellNumber


Control Plane Dimensioning -- active users

Active users = CS active users + PS active users

CS active users = Total Subscirbers * CS Voice Traffic per sub perBH * (1+Proportion of SHO for CS call)

PS active users = Total Subscirbers * (PS call per sub per BH *MHT (mean hold time) per PS call /3600) * (1+Proportion of SHO forPS call)



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Content




Input from Operator







Total CS Voice Traffic= Total Subscirbers * CS Voice Traffic per sub per BH * (1+Proportion of SHO for CS call)

Total CS Voice Traffic; Total CS Data Traffic;Total PS DL Traffic; Total PS UL Traffic ; MBMS Traffic;

Total CS Data Traffic= Total Subscirbers * CS Data Traffic per sub per BH * (1+Proportion of SHO for CS Data call)

MBMS Traffic= Total Cells * MBMS penetration ratio (Cell) * PTM MBMS Iub throughput per cell

Total PS DL Traffic= Total Subscirbers * Total PS throughput (HSPA and R99, UL+DL) per sub * Proportion of DL

PS throughput * (R99 share of DL PS throughput per sub* (1+Proportion of SHO for PS call )+ HSDPA share of DL PS throughput per sub)

Total PS UL Traffic= Total Subscirbers* Total PS throughput (HSPA and R99, UL+DL) per sub * Proportion of UL

PS throughput * (1+Proportion of SHO for PS call)



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Total PS DL Traffic

Total PS UL Traffic

Total CS Voice Traffic

Total CS Data Traffic User Plane Requirement ofNetwork:Total CS traffic (Erl)Total PS traffic (Mbps)Active users(1)

MBMS Traffic

TradeOffFactor

• Note: TradeOffFactor =2: This factor is used when translating CS data Erlang to CS voice Erlang

Total PS traffic (Mbps) = Total PS DL Traffic + Total PS UL Traffic + MBMS Traffic

Total CS traffic (Erl) = Total CS Voice Traffic + Total CS Data Traffic * 2

Active users: refer to “Control Plane Dimensioning -- active users”


Content




Input from Operator







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Transmission Dimensioning -- Principle

All four interfaces, Iub, IuCS, IuPS and Iur should be performed

Interface board amount should be calculated by:

• Traffic requirement (processing capability of interface board)

• Port requirement (Transmission bandwidth) <===> Port number per interface board

Data bandwidth dimensioning

Signaling bandwidth dimensioning

MBMS bandwidth dimensioning (for Downlink only)

OAM bandwidth dimensioning (for Iub interface only)

• Interface session setup/release times requirement

• Node B requirement (for Iub interface only)

• Active users requirement (for Iub interface and IU PS)


Transmission Dimensioning – interface board sketch map

Iub four aspects:1 CPU processing capacity (Interface session setup/release, Node B);2 Throughput capacity (Erlang, Throughput);3 Port bandwidth capacity;

CPU

Traffic flow

Traffic flow

Interface Board

port2

port3

port4

port1Traffic flow

Traffic flow

SCUDPU

ME



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Transmission Dimensioning - RNC Interface Boards

Protoco

l

Board

namePort Type CID/UDP

Node BPort number

Session setup/

release times

ATM

AEUa E1/T1 23000 32 32 500

AOUc STM-1/OC-3 79000 252 4 3000

UOIc_ATM STM-1/OC-3c 79000 500 8 3000

IP

PEUa E1/T1 23000 32 32 500

POUc STM-1/OC-3 79000 252 4 3000

UOIa_IP STM-1/OC-3c 23000 200 4 500

FG2cFE or Electrical

GE79000 500

12 FE or 4 Electrical

GE3000

GOUc Optical GE 79000 500 4 3000

The ports number and BHCA specification of interface board

CID/UDP: per CS user occupy 2CID or 2 UDP, per PS user occupy 3CID or 3 UDP (assume one RAB per user).


Transmission Dimensioning - RNC Interface Boards

Interface

Board

Iub/Iur IuCS IuPS

Voice

(Erlang)

VP

(Erlang)

MAX DL

(Mbps)

(UL+DL)

(Mbps)

Voice

(Erlang)

VP (Erlang) MAX DL

(Mbps)

(UL+DL)

(Mbps)

PEUa 2800 850 60 120 - - - -

FG2c 18000 18000 1300 2600 18000 9000 1600 3200

GOUc 18000 18000 1300 2600 18000 9000 1600 3200

POUc 18000 600 400 800 - - - -

UOIa IP 6000 1500 120 240 6000 1500 250 500

AEUa 2800 680 45 90 - - - -

AOUc 18000 5500 300 600 - - - -

UOIc(ATM) 18000 9000 800 1200 18000 9000 900 1800

The traffic specification of interface board



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Transmission Dimensioning - Iub (Traffic)

Iub traffic volume can quote the result of User plane Dimensioning .

Iub Transmission Traffic requirement:Iub CS Voice traffic = Total Voice Traffic;

Iub CS Data traffic = Total CS Data Traffic;

Iub PS DL traffic = Total PS DL Traffic;

Iub PS UL traffic = Total PS UL Traffic;

Iub MBMS traffic = MBMS Traffic ;


Transmission Dimensioning – Iub (Port)

Iub DL Transmission Bandwidth (data)= (Iub CS Voice traffic * 0.0122 * Activity Factor / Iub CS voice Efficiency) + (Iub CS Data tra ffic * 0.064 / Iub CS

Data Efficiency) + (Total PS DL Traffic / Iub PS Efficiency)

Iub DL Transmission Bandwidth (signalling)= Iub DL Transmission Bandwidth (data) * Iub signaling throughput ratio

Iub DL Transmission bandwidth requirement:Iub DL Transmission Bandwidth (data); Iub DL Transmission Bandwidth (signalling);

Iub UL Transmission Bandwidth (data); Iub UL Transmission Bandwidth (signalling);

Iub OAM Transmission bandwidth requirement:

Iub UL Transmission Bandwidth (data)= (Iub CS Voice traffic * 0.0122 * Activity Factor / Iub CS voice Efficiency) + (Iub CS Data tra ffic * 0.064 / Iub CS

Data Efficiency) + (Iub PS UL traffic / Iub PS Efficiency)

Iub UL Transmission Bandwidth (signalling)

= Iub UL Transmission Bandwidth (data) * Iub signaling throughput ratio

Iub OAM Transmission Bandwidth= Iub OAM throughput per site * Node B Number / Iub PS Efficiency

If there is planned bandwidth (e.g., plan 4E1 per Node B), the final bandwidth will bethe maximum of above calculated bandwidth and planned bandwidth.



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Transmission Dimensioning – Iub (session setup/release )

Table: Operator traffic model and corresponding session setup / release times

Control plane traffic parameter UnitOperator

Traffic modelsessionsetup / release times

CS voice call per CS voice sub per BH times A N1

Handover times per CS voice call(Inter/Intra RNC soft handover)

times/call B N2

CS Data call per CS data sub per BH times C N3

Handover times per CS data call (Inter/IntraRNC soft handover)

times/call D N4

PS call per PS sub per BH times E N5

Handover times per PS call (Inter/Intra RNC

soft handover)times/call F N6

PS channel switch per PS call （D< --- >F） times/session G N7

NAS signaling per subscriber per BH

（times）

times/per user H N8

Note: N1=N3=2;N2=N4=N6=N7=N8=1;N5=3

sessionsetup/release times _Requirement (per user)

=A*N1+A*B*N2+C*N3+C*D*N4+E*N5+E*F*N6+E*G*N7+H*N8

Total session setup/release times _Requirement

= sessionsetup/release times _Requirement (per user) * Total Subscribers


Transmission Dimensioning – Iub (Configuration Result)

Number of Iub interface board_NodeB = NodeB requirement / NodeB Capacity per Interface Board

Number of Iub interface board= MAX(ROUNDUP(Number of Iub interface board_Traffic),

ROUNDUP(Number of Iub interface board_Bandwidth),

ROUNDUP(Number of Iub interface board_NodeB),ROUNDUP(Number of Iub interface board_ session setup/release times ),

ROUNDUP(Number of Iub interface board_ active users ))

Number of Iub interface board_Traffic= Iub CS Voice traffic / Iub Voice specification + Iub CS Data traffic / Iub CS data specification + MAX((Iub PS DL

traffic + Iub MBMS traffic) / Iub PS DL specification, Iub PS UL traffic/ Iub PS UL specification, (Iub PS DL traffic +Iub MBMS traffic+ Iub PS UL traffic) / Iub PS DL+UL specification )

Number of Iub interface board_Bandwidth= (Iub OAM Transmission bandwidth requirement + MAX(Iub DL Transmission Bandwidth requirement,

Iub UL Transmission Bandwidth requirement)) / Transmission Bandwidth per Interface port / port number per

interface board

Number of Iub interface board_ session setup/release times= IUB interface session setup/release times requirement / capacity of session set-up and session release per

second of interface board

Number of Iub interface board_active users = active users requirement / active user Capacity per

Interface Board “active users ” refer to “Control Plane Dimensioning -- active users”



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Transmission Dimensioning – IuCS (Traffic)

IuCS Transmission : TrafficIuCS CS Voice Traffic;IuCS CS Data Traffic;

IuCS CS Voice Traffic= Total Subscirbers * CS Voice Traffic per sub per BH

IuCS CS Data Traffic= Total Subscirbers * CS Data Traffic per sub per BH

IuCS Transmission : Signaling ( session setup/release )

IuCS session setup/release times requirement= Total Subscirbers * CS call times per subscribers in BH * 2

Note: One CS call times corresponds to 2 times session setup/release.


Transmission Dimensioning – IuCS (Bandwidth)

IuCS DL Transmission Bandwidth (data)

= ( IuCS CS Voice Traffic * 0.0122 * Activity Factor / IuCS CS voice Efficiency) + ( IuCS CSData Traffic * 0.064 / IuCS CS Data Efficiency)

IuCS DL Transmission Bandwidth (signalling)= IuCS DL Transmission Bandwidth (data) * IuCS signaling throughput ratio

IuCS Transmission BandwidthIuCS DLTransmission Bandwidth (data);IuCS DL Transmission Bandwidth (signalling );IuCS ULTransmission Bandwidth (data);IuCS UL Transmission Bandwidth (signalling );

IuCS UL Transmission Bandwidth (data)

= ( IuCS CS Voice Traffic * 0.0122 * Activity Factor / IuCS CS voice Efficiency) + ( IuCS CS

Data Traffic * 0.064 / IuCS CS Data Efficiency)

IuCS UL Transmission Bandwidth (signalling)

= IuCS UL Transmission Bandwidth (data) * IuCS signaling throughput ratio



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Transmission Dimensioning – IuCS (Configuration Result)

Number of IuCS interface board= MAX(ROUNDUP(Number of IuCS interface board_Traffic),

ROUNDUP(Number of IuCS interface board_Bandwidth),

ROUNDUP(Number of IuCS interface board_session setup/release times))

Number of IuCS interface board_Traffic=IuCS CS Voice Traffic / IuCS Voice specification + IuCS CS Data Traffic /

IuCS data specification

Number of IuCS interface board_Bandwidth= MAX(( IuCS DL Transmission Bandwidth (data) + IuCS DL TransmissionBandwidth (signalling), ( IuCS UL Transmission Bandwidth (data) + IuCS UL

Transmission Bandwidth (signalling) ) / Transmission Bandwidth per Interface port /

port number per interface board

Number of IuCS interface board_ session setup/release times= IUCS session setup/release times requirement / capacity of session set-up and session release per

second of interface board


Transmission Dimensioning – IuPS (Traffic)

IuPS Transmission Traffic:IuPS DL Transmission Traffic; IuPS UL Transmission Traffic;

IuPS DL Transmission Traffic= Total Subscirbers * Total PS throughput (HSPA and R99, UL+DL) per sub * Proportion of DL PS throughput +

IuPS MBMS payload throughput

IuPS UL Transmission Traffic

= Total Subscirbers * Total PS throughput (HSPA and R99, UL+DL) per sub * Proportion of UL PS throughput

IuPS Transmission : Signaling ( session setup/release )

IuPS session setup/release times requirement= Total Subscirbers * (PS call times per subscribers in BH * 2 + PS call times per subscribers in BH * PS

channel switch per PS call *1)

Note: One PS call times corresponds to 2 times session setup/release. One PS channel corresponds to 1times session setup/release.

IuPS Transmission : active users

IuPS active users requirement= Total Subscirbers * (PS call times per subscribers in BH *PS call MHT per sub per BH/3600)



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Transmission Dimensioning – IuPS (Bandwidth)

IuPS Transmission Bandwidth :IuPS DL Transmission Bandwidth (data);IuPS DL Transmission Bandwidth (signalling) ;IuPS UL Transmission Bandwidth (data);IuPS UL Transmission Bandwidth (signalling);

IuPS DL Transmission Bandwidth (data)= IuPS DL Transmission Traffic / IuPS PS Efficiency

IuPS UL Transmission Bandwidth (data)

= IuPS UL Transmission Traffic / IuPS PS Efficiency

IuPS DL Transmission Bandwidth (signalling)= IuPS DL Transmission Bandwidth (data) * IuPS signaling throughput ratio

IuPS UL Transmission Bandwidth (signalling)= IuPS UL Transmission Bandwidth (data) * IuPS signaling throughput ratio


Transmission Dimensioning – IuPS (Configuration Result)

Number of IuPS interface board= MAX ( ROUNDUP(Number of IuPS interface board_Traffic),

ROUNDUP(Number of IuPS interface board_bandwidth),

ROUNDUP(Number of IuPS interface board_session setup/release times),

ROUNDUP(Number of IuPS interface board_active users))

Number of IuPS interface board_Traffic= MAX( IuPS DL Transmission Traffic / Iu PS specification, IuPS UL Transmission Traffic / Iu

PS specification, (IuPS DL Transmission Traffic + IuPS DL Transmission Traffic) / Iu PSDL+UL specification)

Number of IuPS interface board_bandwidth=MAX( IuPS DL Transmission Bandwidth (data) + IuPS DL Transmission Bandwidth(signalling) ,IuPS UL Transmission Bandwidth (data) + IuPS UL Transmission Bandwidth

(signalling) ) / Transmission Bandwidth per Interface port / port number per interface board

Number of IuPS interface board_ session setup/release times= IUPS session setup/release times requirement / capacity of session set-up and session release per second

of interface board

Number of IuPS interface board_ active users

= IUPS active users requirement / capacity of active users of interface board



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Transmission Dimensioning – Iur (Traffic)

Iur Transmission Traffic is estimated accroding to Total Iub Transmission Traffic.

“Traffic ratio between Iur and Iub” is given at “Traffic Model – Other Parameters”

Iur Transmission Traffic:Iur Voice Traffic;Iur CS Data Traffic;Iur PS DL Traffic;Iur PS UL Traffic;

Iur Voice Traffic = Iub CS Voice traffic * Traffic ratio between Iur and Iub

Iur CS Data Traffic = Iub CS Data traffic * Traffic ratio between Iur and Iub;

Iur PS DL Traffic = Iub PS DL traffic * Traffic ratio between Iur and Iub;

Iur PS UL Traffic = Iub PS UL traffic * Traffic ratio between Iur and Iub;


Transmission Dimensioning – Iur (Bandwidth)

Iur Transmission Bandwidth:Iur DL Transmission Bandwidth (data);

Iur DL Transmission Bandwidth (signalling) ;Iur UL Transmission Bandwidth (data);

Iur UL Transmission Bandwidth (signalling);

Iur DL Transmission Bandwidth (data)

= Iur Voice Traffic * 0.0122 * Activity Factor/ Iub CS Voice Efficiency + Iur CS Data Traffic *0.064/ Iub CS Data Efficiency + Iur PS DL Traffic / Iub PS Efficiency

Iur DL Transmission Bandwidth (signalling)= Iur DL Transmission Bandwidth (data) * Iur signaling throughput ratio

Iur UL Transmission Bandwidth (data)= Iur Voice Traffic * 0.0122 * Activity Factor/ Iub CS Voice Efficiency + Iur CS Data Traffic *

0.064/ Iub CS Data Efficiency + Iur PS UL Traffic / Iub PS Efficiency

Iur UL Transmission Bandwidth (signalling)

= Iur UL Transmission Bandwidth (data) * Iur signaling throughput ratio



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Transmission Dimensioning – Iur (Result)

Number of Iur interface board= MAX(ROUNDUP(Number of Iur interface board_Traffic),

ROUNDUP(Number of Iur interface board_bandwidth))

Number of Iur interface board_bandwidth= MAX(Iur DL Transmission Bandwidth (data) + Iur DLTransmission Bandwidth (signalling), Iur UL TransmissionBandwidth (data) + Iur UL Transmission Bandwidth (signalling)) /Transmission Bandwidth per Interface port / port number per interfaceboard

Number of Iur interface board_Traffic=Iur Voice Traffic / Iub CS Voice_specification + Iur CS Data Traffic / Iub CS

data_specification + MAX( Iur PS DL Traffic / Iub PS DL_specification, Iur PS UL

Traffic / Iub PS UL_specification, (Iur PS DL Traffic + Iur PS UL Traffic) / Iub PS

DL+UL_specification )


Transmission Dimensioning – Special (share Board or port)

IuCS, IuPs and Iur transmission connections can be located on the same interface board when they use the same

interface type.

Number of IuCS interface

board_Traffic

Number of IuPS interface

board_Traffic

Number of Iu/Iur interface board_Traffic= ROUNDUP( Number of IuCS interfaceboard_Traffic + Number of IuPS interface

board_Traffic + Number of Iur interfaceboard_Traffic)Number of Iur interface

board_Traffic

IuCS, Iur transmission connections can be located on the same port when they use the same inte rface type.

Number of IuCS interface

board_Bandwidth

Number of IuPS interfaceboard_Bandwidth

Number of Iu/Iur interface board_Bandwidth

= ROUNDUP(Number of IuCS interfaceboard_Bandwidth + Number of Iur interface

board_Bandwidth)

+ROUNDUP(Number of IuPS interfaceboard_Bandwidth)Number of Iur interface

board_Bandwidth



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Transmission Dimensioning - Result

Number of IuPSinterface board

Number of Iurinterface board

Number of Iubinterface board

= Total interface board slotrequirement

Number of IuCSinterface board


Content




Input from Operator







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Configuration – DPUe & capacity license

• Assume that the user plane capacity requi rements in a network are expressed in a (Mbi t/s throughput --based on

PS 64/384kbps), b (Erlang traffic volume), c (number of cel ls), and n (number of active users).

N_DPUe = ROUNDUP(Max(a/(335 + 165 + 300) + b/3350, c/300, n/5880, 2))

Note: A minimum of two DPUes should be configured.

If throughput --based on a combination of different call type: e.g. PS 32/32kbps w%，PS 64/64kbps x%，PS64/128kbps y%，PS 64/384kbps z%，

N_DPUe = ROUNDUP(Max( (a*w% / 0.38 + a*x% / 0.53 + a*y% / 0.66 + a*z% / 1 ) /(335 + 165 + 300) + b/3350,c/300, n/5880, 2))

Calculate the DPUe board number which is used to process PS traffic:N_DPUe_PS = N_DPUe – b/ 3350

IfN_DPUe_PS x 335 ≥ a, then no hardware capacity license needs to be configured

Otherwise,

Number of required hardware capacity licenses (165 Mbit/s) (represented by N_165) = Min(N_DPUe, ROUNDUP((a – N_DPUe_PS x 335)/165))

If N_165 x 165 + N_DPUe_PS x 335 ≥ a, no hardware capacity license (300 Mbit/s) needs to be configured.

Otherwise,Number of required hardware capacity licenses (300 Mbit/s) (represented by N_300) = Min(N_165, ROUNDUP((a –

N_DPUe_PS x 335 – N_165 x 165)/300))


Configuration – SPUb & NIUa/NIUa license

• Assume that the control plane capacity requirement is: m BHCA, n Cell, l Node B, j active users.

Number of SPUb (pair) = ROUNDUP(Max(BHCAs required by the target network/BHCAs

supported by one SPUb, Number of active users / 9000, Number of NodeBs required by thetarget network / 180, Number of cells in the target network / 600, ROUNDUP(DPUe number /2)) )

• Note: If DPI function is configured, NIUa/NIUa license should be configured according to below

formula. Otherwise, NIUa/NIUa license is not needed.

• Assume that the user plane capacity requirements in a network are expressed in a (Mbit/s

throughput--based on PS 64/384kbps).

Number of NIUa = ROUNDUP( a / 3200 )

If throughput --based on a combination of different call type: e.g. PS 32/32kbps w%， PS

64/64kbps x%， PS 64/128kbps y%， PS 64/384kbps z%，Number of NIUa = ROUNDUP((a*w% / 0.38 + a*x% / 0.53 + a*y% / 0.66 + a*z% / 1 ) / 3200)

If a > 50, Number of NIUa License = ROUNDUP(( a – 50 ) / 3200 )

Else: Number of NIUa License =0



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Configuration – Subrack(MPS, EPS), Cabinet

• Rule:

(1) The maximum number of SPUb that can be housed by MPS/EPS = 5 (pair);

(2) The maximum number of DPUe that can be housed by MPS/EPS = 5 (piece)

(3) The maximum number of interface board that can be housed by MPS = 5 (pair);

(4) The maximum number of interface board that can be housed by EPS = 7 (pair);

(5) The total number of slot for SPU+DPU+interface board provided by MPS = 20 (slot);

(6) The total number of slot for SPU+DPU+interface board provided by EPS = 26 (slot);

(7) Per piece board (SPU or DPU or interface board) occupies one slot;

• Assume that: Number of interface board (pair) = s,

Number of SPUb (pair) = l , Number of DPUe = m, Number of NIUa = n .

Calculate the number of subrack (MPS, EPS) and cabinet:

MPS subrack number = 1;

EPS subrack number = ROUNDUP ( MAX( (S – 5)/7, (l – 5)/5, (m – 5)/5, (s*2 + l *2+ m + n -20)/26))

If Number of EPS subrack +1 ≤ 3, one cabinets needs to be configured.If Number of EPS subrack +1 > 3, two cabinets needs to be configured.


Configuration – final hardware configuration

Item Name Description Deployment

1 Cabinet Each cabinet can house a maximum of three subracks. Mandatory

2 MPS subrack The MPS provides slots for housing service processing units, interface boards, and

clock boards and implements the OM function.

Mandatory

3 EPS subrack The EPS provides slots for housing service processing units and interface boards. Optional

4 Clo ck bo ard The clock board provides syst em clo ck signals. Mandat ory

5 Data Processing Unit The data processing unit provides user plane processing capability. Mandatory

6 Hardware Capacity

License (165 Mbit/s)

The hardware capacity license (165 Mbit/s) provides 165 Mbit/s data processing

capability. It can be configured only for DPUe.

Optional

7 Hardware Capacity

License (300 Mbit/s)

The hardware capacity license (300 Mbit/s) provides 300 Mbit/s data processing

capability. It can be configured only for DPUe.

Optional

8 SPU The signaling processing unit provides control plane processing capability (BHCA

and Node B).

Mandatory

9 NIUa Network Intelligence Optional

10 NIUa license Network Intelligence Processing Throughput Optional

11 Interface board Interface boards terminate the protocols on various interfaces and provide data

processing functions. According to the application requirements, an interface board

may provide STM-1, E1, GE, or FE ports.

Mandatory



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Thank You

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Documents

RAN13 0 RNC 6900 Dimensioning Configuration_with HW69 R13 boards.pdf