Due to its considerably expanded possibilities for consumer

applications, third-generation mobile communication demands

far greater efficiency on the part of the technologies used.

Both mobile Internet and wireless multimedia depend on

the rapid transmission of large amounts of data and there-

fore require high data rates and reliable transmission methods.

A Radio Access Network (RAN) based on Time Division –

Synchronous Code Division Multiple Access (TD-SCDMA)

meets all the requirements of third-generation mobile com-

munication.The ITU recommends TD-SCDMA as one standard

for a 3G RAN, making it an IMT-2000 family member.The 3GPP

adopted the TD-SCDMA air interface as part of Release 4 of

UMTS, under the name TDD Low Chip Rate (LCR).

It combines high spectral efficiency with automatic adapta-

tion to the communications behavior of tomorrow’s mobile

information society.

NB-430TS

The Node B forTD-SCDMA

The world’s first Node B for

TD-SCDMA was specifically

developed for mobile Internet

and wireless multimedia. It is

ideally suited for symmetrical

real-time services (circuit-swit-

ched), and for asymmetrical data

services (packet-switched). The

NB-430TS supports the combi-

nation of circuit-switched and

packet switched services simul-

taneously within the same

TD-SCDMA carrier, allowing a

mobile subscriber to use voice

and data services at the same

time with a single handset.

A TD-SCDMA carrier can gua-

rantee a maximum of 48 simul-

taneous calls. Equipped with

3 carriers, the NB-430TS has a

capacity of 144 pairs of speech

channels. With TD-SCDMA,

packet-oriented data services

achieve a bitrate from 384 kbps

up to 2 Mbps. For the individ-

ual consumer, this amounts to

a twenty-fold increase in the

data rate compared with GPRS.

Implementing forerunner tech-

nologies such as Time Division

Duplex (TDD), Smart Antennas,

Joint Detection and Synchro-

nous-CDMA makes heavy

demands on the network ele-

ments of a TD-SCDMA RAN.

The NB-430TS offers an out-

standing platform for 3G serv-

ices due to its modular archi-

tecture, very flexible and high

signal processing power and

completely downloadable radio

software.

As an SBS family member,

using state-of-the-art technolo-

gy, the NB-430TS guarantees a

globally accepted standard of

quality. Its modular and future-

proof concept, low power con-

sumption, compact design and

high reliability make the

NB-430TS the prime choice for

starting up in the world of

third generation mobile com-

munication.

� The first 3G base station

worldwide forTD-SCDMA

� Evolves to UMTS TDD LCR

� Seamless integration of

voice and data services

� Ideally suited for mobile

Internet

� Highest spectral efficiency

� Very compact design

TD-SCDMA allows smooth

migration from GSM to 3G

networks. The NB-430TS can

be easily deployed today in

existing GSM networks. It is

connected directly to a T-RNC.

Right from the start the

NB-430TS can use the licensed

TDD bands. The core network,

including all existing services,

stays unchanged. The GSM

service continues to function.

For a network operator this

means the protection of ex-

isting investments while mini-

mizing new expenditure.

If the operator decides to con-

vert his core network to a full

3G system it will only be neces-

sary to replace the line card

and to upgrade some software

to realize the Iu-interface. The

NB-430TS will not need to be

replaced. Investing in the

NB-430TS today guarantees a

smooth evolution to tomorrow’s

networks and services.

� Introduction of 3G mobile

applications

� Guaranteed evolution to

3G core networks

� Lowering of investment

costs by the shared utiliza-

tion of existing GSM loca-

tions and existing transmis-

sion technology

� Increase of network

capacity for voice and data

services

� Optimal utilization of net-

work resources, especially

for asymmetrical data

services

� Access to the 3G unpaired

frequency band by means

of Time Division Duplex

technology

� Simple expansion of

existing GSM networks by

3G services thanks to com-

patibility with GSM-SBS

� Outstanding sensitivity due

to the use of an active

antenna system

� Connection-related opti-

mization of the RF link

budget based on smart

antenna technology

� Smooth integration into

existing operation and

maintenance concepts,

thanks to a joint O&M

strategy with the GSM-SBS

Product Profile Customer Benefits

Smooth migration

from GSM to 3G

The first 3G base station worldwide

NB-430TS Highlights

� Flexible and modular

architecture

� Active antenna system

(outdoor) in connection

with the NB-430TS indoor

cabinet

� Future-oriented Digital

Signal Processing

(Software-Radio)

� Compact design:

3 TD-SCDMA carriers per

cabinet

� 3G frequency range

� TDD unpaired frequency

band

� Unified O&M with the

GSM-SBS, integrated in

the Radio Commander

� Uncomplicated commis-

sioning and installation

� Integrated key technologies:

- Time Division Duplex

with flexible UL/DL

Switching Point

- Joint Detection for

optimal Code Division

Multiple Access

- Dynamic Channel

Allocation

- Smart Antenna Technology

� Highest spectral efficiency

� Automatic adaptation to

asymmetrical UL/DL data

volumes

� Adaptive data rates range

from 8 kbps to 384 kbps

for high-mobility operation

and up to 2 Mbps for low-

mobility use

� Supports UMTS and GSM

speech codices

� Integrated battery back-up

By equipping existing GSM

networks with the NB-430TS,

they can be expanded with

the functions and services of

the third generation mobile

communication.

The NB-430TS offers full com-

patibility with the GSM base

station family of the SBS for

seamless integration.

Naturally, the NB-430TS also

supports the TD-SCDMA/

GSM handover and ensures

supplementary GSM service

for the 3G mobile subscribers.

The NB-430TS can easily

evolve for deployment in full

3G core networks.

Technical Data NB-430TS

Frequency Band (3G-TDD) 2010...2025 MHz

Active Antenna System 8 elements

LNA and PA integrated

Operation acc. to ETSI 4.1E

Temperature range -45 oC to +55

oC

NB-430TS indoor cabinet 1...3 carriers

Operation acc. to ETSI 3.1E

Temperature range -5 oC to +55

oC

Height x width x depth 1600 x 600 x 450 mm

Weight 180-200 kg (fully equipped)

Power supply 110/230 V AC (integrated AC/DC)

-48 V DC

Power consumption 1,5 kVA max.

Battery back-up integrated, 15 min. typ.

Compatibility

AC/DC PANEL

DC PANEL

SIP

RO

C 0

SIP

RO

C 1

SIP

RO

C 2

RF

TR

XU

0

RF

TR

XU

1

BA

TTER

YB

AC

KU

P

CO

BA

CO

SA

GPS

Feature Overview

Cabinet Layout

forTD-SCDMA

visit our website at www.siemens.com/mobile

Order No. A50001-N3-P76-2-7600 • Printed in Germany • D09001U • SIE-01-0541 09013. • © Copyright • Siemens AG 2001 • Information and CommunicationMobile • Networks • Hofmannstr. 51 • 81359 Munich • Germany •This publication is issued to provide information only and is not to form part of any orderor contract.The products and services described herein are subject to availability and to change without notice.

3G 3rd Generation

3GPP 3rd Generation

Partnership Project

CDMA Code Division Multiple

Access

COBA COre BAsic module

COSA COre SAtellite module

ETSI European Telecommu-

nications Standards

Institute

GPRS General Packet Radio

Service

GPS Global Positioning

System

GSM Global System for

Mobile communication

IMT International Mobile

Telecommunications

ITU International

Telecommunication

Union

LCR Low Chip Rate

LNA Low Noise Amplifier

O&M Operation &

Maintenance

PA Power Amplifier

RAN Radio Access Network

RF Radio Frequency

RF TRXU RF Transceiver Unit

SBS Siemens Base Station

System

SIPROC Signalling Processor

TDD Time Division Duplex

TD- Time Division-

SCDMA Synchronous Code

Division Multiple

Access

T-RNC TD-SCDMA Radio

Network Controller

UL/DL Uplink/Downlink

UMTS Universal Mobile

Telecommunications

System

Abbreviations

mobile business