Application about radio access network for B3G

ZTE Corporation, China

2006.04

Introduction

The radio access network for B3G may be various,but some common characters should be contained :

Adapting to kinds of multiple accesses (e.g. IMT-2000, Wi-Fi and WiMAX).

Superior wireless coverage and capacity Flexible application for all kinds of radio environm

ent Agile configuration and adjustable structure by soft

ware can meet various services, which makes the heavy network planning easier.

Resource management is more convenient.

Architecture of mobile wireless network

BSC

Gateway

IPv6

BTS-1 BTS-2 BTS-N

RAU-1-1 RAU-1-2 RAU-2-1 RAU-2-2 RAU-N-1 RAU-N-2

RAU-1-M RAU-2-3 RAU-2-M RAU-N-3RAU-1-3 RAU-N-M

Base Transceiver Station

Base Station Controller

Remote Antenna Unit

In this mobile wireless network, radio access network mean the traditional cellular mobile wireless network or distributed mobile wireless network .

Abstract Traditional cellular network mobile wireless an

d distributed mobile wireless network have been concerned as main radio access technique of B3G system recently.

These two kinds of technique have their advantages for response to different environment.

According to the requirement of recommendation ITU-R M.1035,radio environment can be divided into macro,micro and pico cells.

Based on this definition,several kinds of application about radio access network for B3G is described as follows

Radio access network for macro cell

Mainly refers to Rural Largely coverage,1000m<r<35km Less building and less shading Easy to install antenna on higher point to mee

t coverage The number of UE is fewer Single UE’s throughput is various, voice,inte

rnet, IP TV,remote medical,remote teaching, ect..

Traditional cellular + beam forming is better

Radio access network for macro cell

BTS

BTS

BTS

Radio access network for micro cellMainly refers to Sub-Urban or UrbanGeography and radio environment is comp

lexBuilding shading is severeIt is difficult to choose higher point to inst

all antenna for meeting all coverage .Connecting fiber or coaxial line is relativel

y easy.Distributed radio access network +antenna

selecting is better

Radio access network for micro cell

RAU

RAU

RAU

RAU

RAU

RAU

RAU

RAU

RAU

RAU

RAU

RAU

BTS

BTS

BTS

To BSC

To BSC

To BSC

Radio access network for pico cell (general)Here the general pico cell refers to public in

habit community,hotel,business area,etc.The number of UR is more.The total throughput is more, but varying lo

wer.Laying fiber or coaxial line is relatively easy.The UE’s requirement for QoS is not high　

Distributed radio access network +antenna selecting is better

Radio access network for pico cell(general)

BTS

HUB

MUX

RAU

RAU

RAU

RAU

RAU

RAU

RAURAU

RAU

RAU

RAU

RAU

To BSC

Radio access network for pico cell(hot spot) Here the hot spot main refers to meeting roo

m,commercial entertainment location, gymnasium, etc

Most of it focus on indoor site, connecting with fiber or coaxial line is easy.

Radio environment is not complex The total throughput is more, and varying hig

her The UE’s requirement for QoS is high Distributed radio access network +generalized MIMO

is better.

Radio access network for pico cell(hot spot)

BTS

RAU

RAU

RAURAU

RAURAU

RAU

RAU

BTS

BTSBCS

conclusion

Here several kinds of radio access network and their application for B3G is given,summarized as below

Macro cell: traditional cellular + beam forming is better

Micro cell: distributed radio access network +antenna selecting is better

pico cell(general) : distributed radio access network +antenna selecting is better

pico cell(hot spot) : distributed radio access network +generalized MIMO is better.