Cambium PTP 450 series, Руководство пользователя

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PTP 450 User Guide Network migration planning
2-30
ptp-450 (July 2014)
Sector capacity
Deployment scenario 1 – Replacing PTP 100 Equipment (20 MHz
Channel Bandwidth)
In Deployment scenario 1, it is presumed that the existing network is comprised of PTP 1x0 equipment (i.e. PTP
100, PTP 120, etc.), with the configuration listed below in Table 12 . The migration in this scenario results in a
complete replacement of PTP 1x0 series equipment with PTP 450 equipment.
During the Scenario 1, it is presumed that the neighbouring frequencies are free and that a guard band is not
required at the edges of the spectrum used for transmission.
Table 12 Deployment scenario 1
Term Definition
Existing System Release
13.1.3
Existing Number of Sectors
6
Existing Modulation
FSK
Existing Frequency Re-use Pattern
ABC ABC
Existing Ch BW (MHz)
20
Existing Aggregate Tower Throughput (Mbps)
84
Existing Total Bandwidth Used (MHz)
60
Existing Additional Frequencies Available (MHz)
10
Replace Legacy Subscribers with 450 BHSs
Required
Resulting Number of Sectors
6
Resulting Modulation
OFDM (MIMO)
Resulting Frequency Re-use Pattern
ABC ABC
Resulting Ch BW (MHz)
20
Resulting Total Bandwidth Used (MHz)
60
Resulting Aggregate Tower Throughput (Mbps)
570
Resulting Percentage Increase in Aggregate Tower Throughput
679%