Cambium PTP 450 series, User Manual

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PTP 450 User Guide Network migration planning
2-28
ptp-450 (July 2014)
Network migration planning
The PTP 450 Series offers current network operators the ability to migrate to PTP 450 for expanded network
capacity and capability. The following sections are provided to aid in establishing a planning framework for
deploying a PTP 450 system.
Example PTP 450 deployment scenario
The following sections detail example network deployment scenarios for the PTP 450 product. This table may be
referenced to begin planning the PTP 450 deployment based on the current network configuration (if applicable).
Definitions of deployment scenario terminology
Table 11 Deployment scenario terminology descriptions
Term Definition
Existing System Release The current running system software release
Existing Number of Sectors
The total number of BHM sectors co-located in the current
system
Existing Modulation
The type of modulation used in the current network. “FSK”
indicates an existing PTP 1x0 series network, and “OFDM”
indicates an existing PTP 430 network.
Existing Frequency Re-use Pattern
The current deployment’s usage of frequency across tower
sectors. For example, in a six BHM sector deployment, the
following represents an ABC frequency re-use pattern.

Sector 1 (A): 5740

Sector 2 (B): 5760

Sector 3 (C): 5780

Sector 4 (A): 5740

Sector 5 (B): 5760

Sector 6 (C): 5780
The deployment scenarios define their own customized
examples of frequency re-use patterns.
For multiple BHM cluster deployments, see Multiple OFDM
BHM Clusters on page 2-61
Existing Ch BW (MHz)
The channel size, or channel bandwidth used in the current
system. For FSK (PTP 1x0 series) deployments, the channel
bandwidth is always 20 MHz. For OFDM (PTP 430)
deployments, the channel size may be 5, 10, or 20 MHz.
Existing Total Bandwidth Used (MHz)
The total amount of spectrum, in MHz, which is used by the
existing system.