E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
E2-E3: CONSUMER MOBILITY
CHAPTER-10 BTS MINI – LINK LINK & MAINTENANCE ISSUES (Date of Creation: 01-04.2011)
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E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
Mini – Link Mini-Link microwave
radios
provide an efficient and rapid way
of
developing
wide-
converge telecommunication networks. The use of MINILINK is particularly suited for cellular applications because of its
flexibility
capacities,
concerning
configurations
and
space required. It also offers fast deployment it also offers fast deployment in all project phases for planning to commissioning. MINI-LINK is ideal for quickly providing medium capacity-links in
temporary
or
permanent,
mobile or fixed communication networks.
It
can
be
used
anywhere within the network, where one to seventeen 2 Mbps transmission lines are required. As there is no need for heavy masts or towers, it can quickly be mounted on existing building or structures. The Mini-Link exists in three different versions, which works in a similar way, but they have different capacity and cover different frequency bands See fig below. They are:
MK II (old version)
Mini-Link C
Mini-Link E
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E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
Technical Data Mini-Links
Traffic capacities (Mbps): 2, 2x2, 4x2, 2x8, 8x2 Frequency bands (GHz): 15, 23, 26, 38 Mini-Link E Traffic capacities (Mbps): 2x2, 4x2, 2x8, 8x2, 34+2
Frequency bands (GHz): 7, 15, 18, 23, 26, 38 System Overview
Figure 2 Outdoor and indoor parts
A Mini-Link Network Element (NE) can, from a hardware and installation point of view, be divided into two parts:
Indoor part,
Outdoor part
Outdoor Unit
Radio Unit
Compact antenna
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E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
Indoor Unit
Modem unit (MMU)
Traffic unit (TRU)
Access Module Magazine(AMM)
From a functional and configuration point of view, an NE can be divided into the following parts: Basic Node The Basic Node holds the system platform providing traffic and system
control, such as traffic routing, multiplexing, protection mechanisms and management functions. It also provides traffic interfaces, PDH, SDH and Ethernet, for connection to network equipment such as a radio base station, ADM or LAN. Finally, it includes indoor mechanical housing, power distribution and cooling. Radio Terminals Each Radio Terminal provides microwave transmission from 2x2 to
32x2 Mbit/s, operating within the 7 to 38 GHz frequency bands, utilizing C-QPSK and 16 QAM modulation schemes. It can be configured a s unprotected (1+0) or protected (1+1).
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E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
Chapter 10:BTS Mini Link & Maintenance Issues Sample self study objective type questions
1) The use of MINI-LINK is suited For a.Cellular applications b. Fixed Network c . Both for a & b 2) MINI-LINK is ideal for _______________ a) Medium capacity b) Large capacity c) Both a &b 3) MINI-LINK is ideal for quickly providing medium capacity-links_on _________ basis a) temporary b) permanent c)Both a&b 4 )A MINI-LINK Network Element (NE) can, from a hardware and installation point of view, be divided into__________________ a) Two parts b) Three parts c)Four parts 5 )One of the Outdoor unit part is ___________________a) Modem unit (MMU)
b) Traffic unit (TRU) c) Radio Unit 6) One of the functional and configuration part of , an NE is __________ a) Radio Terminals b) Modem unit (MMU c) Traffic unit (TRU)
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E2-E3/CM/BTS Mini-Link & Maintenance Issues
Rev date:01-04-2011
7 Modulation scheme utilized is _________________ a) C-QPSK b) 16 QAM) c) 128 QAM d) a&b
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