Scope Of This Chapter; Terminology And Concepts: Recapitulation - Radwin 5000 HPMP User Manual

Scope of this Chapter
Scope of this Chapter
Use of Smart Bandwidth Management (SBM) as a tool to enhance resource utilization
involves network management issues beyond the scope of a User Manual. What we will do
here, is show how SBM is configured and demonstrate several basic scenarios. Our intent is to
"get you started" with SBM by assisting you to develop your own intuition and networking
skills setting up highly resource efficient sectors.
The first point to keep in mind is that the SBM mechanism is always active in the HBS. It's not
something you can switch on or switch off.
The issue here is how to get the best out of it.
Terminology and Concepts: Recapitulation
It is important both in following the discussion below, and viewing the RADWIN Manager
Utilization windows to remember:
» Downlink traffic is data transfer from an HBS to an HSU
» Uplink traffic is data transfer from an HSU to an HBS
» The HBS allocates time slots to sector HSUs in round‐robin fashion to effect time‐shar‐
ing. There are separate sets of 64 time slots for each of the uplink and downlink direc‐
tions. One time slot in each direction is reserved for SBM management leaving 63 in
each direction to be allocated to sector HSUs. The uplink and downlink allocations are
independent and therefore separately assignable.
» For each fixed or nomadic HSU, Assured throughput is determined by the actual num‐
ber of time slots allocated to it in either direction. Peak throughput (higher than
Assured throughput) may be achieved by allocating unused downlink time slots or
unallocated uplink time slots to very busy HSUs.
» Time slot allocation is the only mechanism available for utilization management.
» Manual time slot allocation for a fixed HSU is carried out during registration or Ser‐
vice update:
RADWIN 5000 HPMP User Manual Release 3.5.70 10‐2