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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