Radwin 5000 HPMP, Руководство пользователя

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RADWIN 5000 HPMP User Manual Release 3.5.70 10 ‐ 9
Example 1
This is useful if you are using a laptop or other device with a small screen.
The values in Figure 10 ‐ 5 are as expected: The HBS is using a little over half its capacity in the
uplink direction. The excess is overhead required to monitor the sector. In the downlink
direction, the excess over 50% is incidental as will be seen from the top right graph showing
sector utilization as a time line:
Figure 10 ‐ 6: Sector Utilization ‐ time line ‐ Example 1
The “glitches” are due to Jperf and host computer limitations.
The lower pair of graphs show utilization of a selected HSU either sector relative or self ‐
relative. Use the selector in the HSU utilization title bar to make a choice.
We first look at the HSU based utilization. (In our view, the Sector relative measurements will
make more sense if we first understand what is happening at the HSU level.)
Figure 10 ‐ 7 shows the HSU relative utilization for the selected HSU. The green percentage
bars are easy to understand. They are both well over 100% since the whole sector is grossly
under ‐ allocated. Both values are over 1000%! More specifically, if the HSU could only use its
two allocated time slots in both directions, it is fairly easy to demonstrate that it would not be
able to operate at maximum capacity. Since it is able to “borrow” the unused uplink and
downlink time slots, it reaches maximum throughput and operates at over ten times the
assured rate define by two time slots in both directions.