MINI-LINK™ BASWireless point-to-multipoint broadband access system

Ericsson’s point-to-multipoint system,

MINI-LINK BAS, is a compact, modular and

scalable wireless broadband access system,

combining the latest Ericsson microwave radio

technology with ATM and IP. MINI-LINK BAS

is part of Ericsson’s complete microwave

portfolio that also includes point-to-point

products and a common management system,

MINI-LINK Manager.

Benefits:

Multi-service support

Fast and cost-effective access

Spectrum efficiency

MINI-LINK BAS provides fast and cost-effective

broadband access and mobile backhaul in

existing and next-generation networks. It is

designed to provide exceptional traffic handling

capacity and carrier-class services. It supports

traditional leased lines, high-speed Internet, VPNs

and other data applications, at speeds of up to

37.5 Mbit/s. Spectrum efficiency is boosted by

TDMA (Time Division Multiple Access) and

F-DCA (Fast Dynamic Capacity Allocation)

enabling instantaneous and dynamic allocation

of bandwidth, maximizing the efficiency of the

radio carrier with statistical multiplexing.

MINI-LINK BAS supports CBR, UBR and

UBR+MDCR service categories, which ensures

efficient use of spectrum and is a prerequisite

when offering high quality services. Telephony

and real-time services over PDH or IP are effici-

ently supported by the inherent quality offered

by ATM. Mobile backhaul, in both 2G and 3G

networks is supported by functions such as

fractional E1, T1 and ATM interfaces. Mobile

backhaul and broadband access services can

beneficially be combined in the same sector or

even at the same customer site.

The MINI-LINK BAS system consists of

customer-located Access Terminals communica-

ting over a common radio carrier with centrally

located hubs. The hub has a scalable design to

limit initial network investment and enable an

“invest-as-you-grow”-strategy.

Ericsson ABTransmission & Transport NetworksSE-431 84 Mölndal, SwedenTelephone +46 31 747 00 00Fax +46 31 27 72 25www.ericsson.com

AE/LZT 110 5084/1 R7

© Ericsson AB 2002

All technical data is typical and is subject to change without notice

Technical data

The Radio Node

The indoor parts of the Radio Nodes (RN) are

housed in a radio shelf (R-AAS) that concentrates

the traffic and provides local traffic cross-

connection within the hub site. An optional

concentration shelf (C-AAS) can be used to

provide further concentration.

The user traffic is fixed or dynamically allocated

among subscribers in a point-to-multipoint

configuration. For high-capacity users or longer

distances point-to-point configurations are

used.

The Access Termination

The Access Terminal (AT) is located at the

customer site and supports a wide variety of

services with different types of interfaces such

as fractional E1, T1, Ethernet 10/100BaseT

and ATM (STM-1 and E1).

The AT is designed with plug-in interface cards

for different service requirements. New services

can easily be added without interrupting other

services.

Management System

The Web-based Element Manager (EM) enables

the operator to send commands to the system

through a Control Processor (CP), providing

common management of equipment configura-

tions, traffic cross-connections, alarms and

performance. An SNMP v.3 agent interfaces

with any network management system, enabling

a total management solution throughout an entire

network.

Radio capacity:

37.5 Mbit/s up- and downlink

Modulation scheme:

C-QPSK

Channel spacing:

28 MHz

Frequency coverage:

26 GHz ETSI: 24.5-26.5 GHz, 1008 MHz duplex

26 GHz MII: 24.5-27 GHz, 1250 MHz duplex

28 GHz ETSI: 27.5-29.5 GHz, 1008 MHz duplex

28 GHz LMDS: 27.5-28.35 GHz, 420 MHz duplex

31 GHz LMDS: 31.0-31.30 GHz, 230 MHz duplex

RF output power:

+23 dBm

Receiver Threshold:

BER 10-3 -82 dBm

BER 10-6 -78 dBm

BER 10-9 -75 dBm

Antenna gain:

Integrated compact antenna (AT) 34 dBi

Integrated 90° sector antenna (RN) 21 dBi

V.24, V.35, X.21, high speed Internet

connections and IP based VPNs.

Non-blocking Cross-connect Capacity

C-AAS: >870 Mbit/s

R-AAS: >530 Mbit/s

Operating temperature:

Outdoor:

-40° C to +60° C (full performance)

Indoor:

AT -5° C to +45° C

RN +5° C to +40° C

Dimensions:

Node radio (outdoor unit, including antenna):

321x266x204 mm

AT radio (outdoor unit, including antenna):

321x266x188 mm

AT (indoor unit):

132x448x240 mm

R-AAS (indoor unit for 6 RN):

475x435x250 mm

C-AAS:

400x445x200 mm

Standards and recommendations:

CEN/CENELEC, ETSI, ITU, IEC, IEEE and IETF

TDMA performance:

Full dynamic capacity allocation independent

in up- and downlink

Priorities assigned based on service category

F-DCA response time: 1 ms

User interface units:

2 x Ethernet 10BaseT/100BaseT with peak

rate shaping, RFC 2684 using AAL 5 over

UBR, UBR+MDCR or CBR

2 x E1 Unstructured/Structured or ATM

2 x T1 Unstructured

1 x STM-1/OC3c optical ATM

Up to 4 units per AT

Maintenance interface:

Ethernet 10BaseT (R-AAS, C -AAS and AT)

Serial port RS232 (AT)

Network interface:

1 x STM-1/OC3c optical ATM (Short

Haul/Intermediate Reach)

1 x E3 ATM

1 x DS3 ATM (PLCP and Direct Mapping)

4 x E1 Unstructured/Structured or ATM

4 x T1 Unstructured

Network solutions are available to offer services

such as POTS, ISDN BRA, ISDN PRA, V11,

PSTN/MSC

Data

networks

EM

CP

C-AAS

C-AAS

R-AAS

Other

hubs

RN

Hub

AT