RNC Introduction and Configuration

Contents

ZXWR RNC Introduction

ZXWR RNC Dimensioning Principle

ZXWR RNC Dimensioning Example

RNC Overview

RNC

To CN ATM/IP

Iub

Iu

Iur To RNC

RNC in UTRAN

Power & Fan

Process Unit

RPU

O&M Unit

ROMU

Peripheral Monitor Unit

RPMU

RA

U

Acce

ss U

nit

RS

U

Sw

itch

Un

it

ZXWR RNC

Node B

RNC

CN

STM-1

E1

FE/GE

485

GPS

Iub

Iur

Iu

RNC Hardware Logical Units

ZXWR RNC Hardware Architecture

ROMU (RNC O&M unit)

ROMB, CLKG, SBCX

RAU (RNC Access Unit)

APBE, EIPI, GIPI,SDTB, DTB,IMAB

RSU (RNC Switch Unit)

PSN, GLI, UIMC, GUIM and CHUB

RPU (RNC Processing Unit)

RCB, RUB

RPMU( Peripheral Monitor Unit)

PWRD: Power Distributor

ALB: Alarm Board

ZXWR RNC Features ZTE Large Capacity All-IP RNC

Modularity design, four types of shelves

Control shelf

Resource shelf

Switch shelf

Interface shelf Rich interface: E1T1/FE/GE/STM-1/CSTM-1

ZXWR RNC 2 Racks Capacity

Subscribers 1 Million

Traffic Vol. 52,500Erl

BHCA 7,000K

Switch Capacity 80Gbps

Data Throughput 6,600 Mbps

Max. Node B 1,900

Max. Cell 5,700

Interface shelf can

expand

independently to

provide access

interface, easy for

future evolution to

IP UTRAN.

Contents

ZXWR RNC Introduction

ZXWR RNC Dimensioning Principle

ZXWR RNC Dimensioning Example

ZXWR RNC System Structure

Control Signal

Data Signal

DTB G

U

I

M

RUB

APBE

CHUB

EIPI SDTB

IMAB

GIPI

RCB

P

S

N U

I

M

C

G

U

I

M

APBE

CLKG

ROMB

GLI

GLI

UIMC

Switch Shelf

Interface Shelf

Main

Control Shelf

Main

Resource Shelf

CHUB, ROMB,

CLKG only for

main control

shelf

SBCX only in

main resource

shelf

Control shelf

Resource shelf

Switch shelf

Interface shelf

BCTC as Backboard

Process RNC control plane (RCB)

ROMB,CLKG,CHUB,SBCX

BGSN as Backboard

Process RNC user plane (RUB)

GIPI, APBE

BPSN as Backboard

Supply switch unit for user plane

PSN, GLI

BGSN as Backboard

DTB, SDTB, IMAB, EIPI, APBE

SBCX

Control Shelf Configuration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

S

B

C

X

R

C

B

R

C

B

R

C

B

R

C

B

R

C

B

R

C

B

U

I

M

C

U

I

M

C

R

O

M

B

R

O

M

B

C

L

K

G

C

L

K

G

C

H

U

B

C

H

U

B

R

S

V

B

R

U

I

M

2

R

U

I

M

3

R

M

P

B

R

M

P

B

R

C

K

G

1

R

C

K

G

2

R

C

H

B

1

R

C

H

B

2

Name Full Name Configuration Principle Backup

Principle

ROMB RNC Operating & Maintenance Board Each RNC 1 pair 1+1

RCB RNC Control plane processing Board BHCA & Cell & Sig Bandwidth 1+1

CHUB Control plane HUB Each RNC 1 pair 1+1

CLKG Clock Generator Each RNC 1 pair 1+1

SBCX X86 Single Board Computer Each RNC 3 pcs

OMM: 2; Log Server: 1

1+1 for

OMM

UIMC Universal Interface Module of Control plane Each control shelf 1 pair 1+1

CHUB, ROMB and CLKG

1 pair (1+1backup) for

one RNC in the main

control shelf.

Other control shelves

only have UIMC, RCB or

SBCX boards.

Board Dimensioning: RCB in Control Shelf

RCB Items Processing

capacity Formula

Number of Cells 410 RCB_1=Number of Cells / 410

No. of BHCA 500K RCB_2 =No of BHCA / 500k

Throughput of Signaling 14Mbps RCB_IpSig=Throughput of Signaling

/ 14Mbps

RCB and SBCX dimensioning principle

Detailed dimensioning principle with detailed traffic model:

RCB=2*MAX(RCB_1, RCB_2) + 2* RCB_IpSig

Simple dimensioning principle without detailed traffic model:

RCB = RUB + RCB_IpSig

RCB_IpSig =

2, if (RUB)

Resource Shelf Configuration

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

G

I

P

I

G

I

P

I

A

P

B

E

A

P

B

E

R

U

B

R

U

B

R

U

B

R

U

B

G

U

I

M

G

U

I

M

G

I

P

I

G

I

P

I

R

U

B

R

U

B

R

U

B

R

U

B

G

I

P

I

R

G

E

R

R

G

E

R

R

G

I

M

1

R

G

I

M

1

R

G

U

M

1

R

G

U

M

2

R

M

N

I

C

R

M

N

I

C

R

G

E

R

Each RNC has 2 GIPI

(1+1) for OMCB in slot

11/12 of main resource

shelf.

2 GUIM (1+1 backup)

for internal switching.

Providing interface

boards for IU interface.

Name Full Name Configuration Principle Backup

Principle

RUB RNC User plane

processing Board Depends on user plan traffic model (CE) N+1

GIPI Gigabit IP

Interface 1GE or 4FE, Throughput of each Interface

Load sharing

or 1+1

APBE ATM Process

Board Enhanced

4 ATM STM-1, Throughput of each Interface & ATM

STM-1

Load sharing

or 1+1

GUIM Universal Interface

Module of User plane Each Resource shelf 1 Pair 1+1

Board Dimensioning: RUB in Resource Shelf

Voice Data RUB number = ----------- + ----------

2100 165 Mbps (R99 64k)

265 Mbps (R99 384K)

Voice processing capacity is 2100.

For different data server, the data throughput capacity is different.

GIPI & APBE Dimensioning

Interfaces Throughput Calculation

Iub BIub = BIubData + BlubSig

Iu

Iu-CS BIuCS = BIuCSData + BIuCSSig

Iu-PS BIuPS = BIuPSData + BIuPSSig

Iur BIur= BIurData + BIurSig

BIurData = (BIuCSData + BIuPSData) * RIur

GIPI=IP interface throughput / 1Gbps

APBE=MAX (ATM interface throughput / 140Mbps, STM-1 Interface / 4)

Interface Shelf Configuration

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

(S)

D

T

B

(S)

D

T

B

I

M

A

B

E

I

P

I

(S)

D

T

B

(S)

D

T

B

I

M

A

B

E

I

P

I

G

U

I

M

G

U

I

M

(S)

D

T

B

(S)

D

T

B

I

M

A

B

I

M

A

B

(S)

D

T

B

R

D

T

B

R

D

T

B

R

D

T

B

R

D

T

B

R

G

U

M

1

R

G

U

M

2

R

D

T

B

R

D

T

B

R

D

T

B

2 GUIM (1+1 backup)

for internal switching.

Providing interface

boards for IUB

Interface boards

depend on networking

requirements.

Name Full Name Configuration Principle Backup Principle

DTB Digital Trunk Board 32E1, DTB = N_E1/32 Load sharing

SDTB SONET Digital Trunk Board 63E1, SDTB=N_E1/63 Load sharing/1+1

APBE ATM Process Board Enhanced 4 ATM STM-1, Throughput of each

Interface & ATM STM-1 Load sharing/1+1

IMAB/

EIPI IMA & EIPI Board

1IMAB/EIPI + 2DTB,

1IMAB/EIPI + 1SDTB Load sharing/1+1

Interface boards dimensioning principle

ATM over E1 : DTB + IMAB

ATM over CSMT-1 : SDTB + IMAB

IP over E1 : DTB + EIPI

IP over CSTM-1: SDTB + EIPI

ATM over STM-1: APBE

FE/GE: GIPI

IMAB dimensioning principle: 2 DTB need 1 IMAB;

1 SDTB need 1 IMAB;

EIPI dimensioning principle: 2 DTB need 1 EIPI;

1 SDTB need 1 EIPI;

Switch Shelf Configuration

Name Full Name Configuration Principle Backup Principle

PSN Packet Switching Network 1 pair for switch shelf 1+1

GLI GE Line Interface 2 pairs GUIM need 1 pair GLI 1+1

UIMC Universal Interface Module of

Control plane 1 pair for switch shelf 1+1

Each GUIM has 2 GE,

each GLI has 4 GE.

1 GLI can connect two

resource shelf or

interface shelf.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

G

L

I

G

L

I

G

L

I

G

L

I

G

L

I

G

L

I

P

S

N

P

S

N

U

I

M

C

U

I

M

C

R

U

I

M

2

R

U

I

M

3

Contents

ZXWR RNC Introduction

ZXWR RNC Dimensioning Principle

ZXWR RNC Dimensioning Example

RNC Dimensioning Example

RUB= CEILING (5805/2100+388/200+92/200,1) = 6; After N+1 backup, RUB=8;

Voice Data RUB number = ----------- + ----------

2100 165 Mbps (R99 64k)

265 Mbps (R99 384K)

RCB = RUB + RCB_IpSig

RCB_IpSig =

2, if (RUB)

RNC Dimensioning Result

After 1+1 backup,

SDTB dimensioning result is 9+9;

APBE dimensioning result is 2+2;

GIPI dimensioning result is 2+2;

IUB planning :

GLI Dimensioning result:

Resource shelf + Interface shelf=5

GLI=6;