rikoto001
2009-02-08, 11:29 PM
BACKGROUND
E******* has very long and wide spread knowledge and experience
regarding high capacity methodology in frequency hopping (FH)
networks. In a large number of trials and implementations, E*******
has shown that frequency hopping, together with smart frequency
planning techniques (e.g. (Multiple Reuse Patterns) MRP, see ref. 4)
can boost the capacity for a network with a given number of sites and
frequency spectrum.
Fractionally loaded networks, planned with extremely tight reuse (1/1 or
1/3) have shown to be a very competitive method in order to achieve
high spectrum efficiency. This is especially true for operators with
smaller frequency spectrum available, and where traditionally planned
networks can not use the full advantage of the interference averaging
effects of frequency hopping.
The high capacity potential, together with a simplified process of
frequency planning and a decreased cost for O&M have made
Fractional Load Planning (FLP) a very attractive alternative for a lot of
operators.
Since FLP requires synthersizer hoping, the basestations need to be
equipped with hybrid combiners. Traditionally, most operators using
E******* equipment have had filter combiners and thereby been
restricted to use baseband (BB) hopping. Today, more and more
networks are use only basestations from the RBS 2000 family, with the
possibility to utilise synthesizer hopping. This can be newer operators,
operators with a new 1800 license, or operators who phase out older
equipment in for example urban areas.
This guideline has been produced in order to spread knowledge of how
to plan and dimension fractionally loaded systems.
E******* has very long and wide spread knowledge and experience
regarding high capacity methodology in frequency hopping (FH)
networks. In a large number of trials and implementations, E*******
has shown that frequency hopping, together with smart frequency
planning techniques (e.g. (Multiple Reuse Patterns) MRP, see ref. 4)
can boost the capacity for a network with a given number of sites and
frequency spectrum.
Fractionally loaded networks, planned with extremely tight reuse (1/1 or
1/3) have shown to be a very competitive method in order to achieve
high spectrum efficiency. This is especially true for operators with
smaller frequency spectrum available, and where traditionally planned
networks can not use the full advantage of the interference averaging
effects of frequency hopping.
The high capacity potential, together with a simplified process of
frequency planning and a decreased cost for O&M have made
Fractional Load Planning (FLP) a very attractive alternative for a lot of
operators.
Since FLP requires synthersizer hoping, the basestations need to be
equipped with hybrid combiners. Traditionally, most operators using
E******* equipment have had filter combiners and thereby been
restricted to use baseband (BB) hopping. Today, more and more
networks are use only basestations from the RBS 2000 family, with the
possibility to utilise synthesizer hopping. This can be newer operators,
operators with a new 1800 license, or operators who phase out older
equipment in for example urban areas.
This guideline has been produced in order to spread knowledge of how
to plan and dimension fractionally loaded systems.