RADWIN
5000
HPMP
User
Manual
Release
3.5.70
10
‐
20
About
HBS
Overhead
About
HBS
Overhead
There
is
always
some
overhead
on
the
HBS.
Recall
that
one
time
slot
in
each
of
the
uplink
and
downlink
directions
is
reserved
by
the
HBS
for
sector
management.
In
our
four
examples
we
noted
that
the
occurrence
of
HBS
overhead
increases
when
allocating
time
slots
even
to
“idle”
HSUs.
As
we
saw,
the
percentage
point
sector
load
increases
as
you
allocate
further
downlink
time
slots,
or
maintain
any
unused
but
allocated
uplink
time
slots.
It
is
straightforward
to
demonstrate
that
overhead
is
also
channel
‐
bandwidth
dependent.
If
you
repeat
the
four
examples
under
10
and
5
MHz
channel
bandwidth,
the
load
overhead
percentage
increases
as
channel
bandwidth
decreases.
Conversely,
if
you
are
able
to
operate
at
40MHz,
the
overhead
percentage
drops.
To
illustrate
the
effect
of
different
channel
bandwidths,
we
show
in
order,
Example
3
at
10,
20
and
40
MHz:
Figure
10
‐
23:
Example
3:
Half
the
uplink
time
slots
reserved
at
10
MHz
CBW
Notice
that
at
10MHz
channel
bandwidth,
the
sector
utilization
is
100%
in
both
directions!
Summary of Contents for 5000 HPMP
Page 1: ...USER MANUAL RADWIN 5000 POINT TO MULTIPOINT BROADBAND WIRELESS Release 3 5 70...
Page 21: ...Part 1 Basic Installation Release 3 5 70...
Page 69: ...Part 2 Sector Installation Release 3 5 70...
Page 155: ...Part 3 Sector Management Release 3 5 70...
Page 197: ...RADWIN 5000 HPMP User Manual Release 3 5 70 8 42 Nomadic...
Page 252: ...RADWIN 5000 HPMP User Manual Release 3 5 70 11 8 Registering HMUs 3 Open the Air Interface tab...
Page 290: ...Part 4 Site Synchronization Release 3 5 70...
Page 319: ...RADWIN 5000 HPMP User Manual Release 3 5 70 16 7 Configuring the GSU...
Page 320: ...Part 5 Advanced Installation Topics Release 3 5 70...
Page 354: ...Part 6 Field Installation Topics Release 3 5 70...
Page 396: ...Part 7 Product Reference Release 3 5 70...
Page 517: ......