Shyam Telecom Inc. R20-1900 Manuel D’Utilisation
Page
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Next Generation
Signal Enhancement
Signal Enhancement
4.4. References
[1] ETS 300 086.
[2] ETS 300 609-4.
[3] ETS 300 342-3
4.5. General
Mobile Communications Systems are planned as cellular systems and each
cell of the base station is required to provide RF coverage over a certain
geographical area as per defined RF power levels. Due to the RF
propagation properties, even using high radiated RF powers or complicated
antenna systems, there are zones within the coverage area where the RF
signal strength from base station remains inadequate for establishing the
desired connectivity to mobile users.
Repeaters traditionally are inducted in the Mobile Communication network
to fill in the “Dead Zones” caused by blocking of signals by geographic
topologies such as mountains, valleys, dense foliage, high rising urban
landscapes and other man-made structures. The distance from the base
station also adversely affects the RF signal strength. The user views
repeaters as a means to extend base station coverage so as to reduce the
number of base stations and thereby accelerate network availability.
Repeater systems are installed after meticulous planning between BTSs
and the mobile users to provide RF coverage in the shadowed regions.
Repeater systems are available for different applications and ultimate
choice
cell of the base station is required to provide RF coverage over a certain
geographical area as per defined RF power levels. Due to the RF
propagation properties, even using high radiated RF powers or complicated
antenna systems, there are zones within the coverage area where the RF
signal strength from base station remains inadequate for establishing the
desired connectivity to mobile users.
Repeaters traditionally are inducted in the Mobile Communication network
to fill in the “Dead Zones” caused by blocking of signals by geographic
topologies such as mountains, valleys, dense foliage, high rising urban
landscapes and other man-made structures. The distance from the base
station also adversely affects the RF signal strength. The user views
repeaters as a means to extend base station coverage so as to reduce the
number of base stations and thereby accelerate network availability.
Repeater systems are installed after meticulous planning between BTSs
and the mobile users to provide RF coverage in the shadowed regions.
Repeater systems are available for different applications and ultimate
choice
shall depend on some of the factors mentioned below:
•
Area to be provided with coverage.
•
Indoor/outdoor coverage.
•
Availability of BTSs in the vicinity.
•
Antenna isolation to be achieved.
Radio Equipment and Systems Land mobile service
Technical characteristics and test conditions for radio
equipment with an internal or external RF connector
intended primarily for analogue speech.
Technical characteristics and test conditions for radio
equipment with an internal or external RF connector
intended primarily for analogue speech.
Digital cellular telecommunications system (phase 2): Base
Station Systems (BSS) equipment specification: Part 4:
Repeaters.
Station Systems (BSS) equipment specification: Part 4:
Repeaters.
Radio Equipment and Systems (RES); Electro-Magnetic
Compatibility (EMC) for European Digital Cellular
Telecommunications systems. Base Station Radio and
ancillary equipment and Repeaters meeting phase 2 GSM
requirements.
Compatibility (EMC) for European Digital Cellular
Telecommunications systems. Base Station Radio and
ancillary equipment and Repeaters meeting phase 2 GSM
requirements.