Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point Guía De Diseño
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Cisco Mesh Access Points, Design and Deployment Guide, Release 7.0
OL-21848-01
Site Preparation and Planning
Figure 33
Laying out Various Cells
If possible, the channel planning should also minimize channel overlap in cases where the mesh has
expanded to cover the loss of a RAP connection, as shown in
expanded to cover the loss of a RAP connection, as shown in
Figure 34
Failover Coverage
Collocating Mesh Access Points
The following recommendations provide guidelines to determine the required antenna separation when
you collocate AP1520s on the same tower. The recommended minimum separations for antennas,
transmit powers, and channel spacing are addressed.
you collocate AP1520s on the same tower. The recommended minimum separations for antennas,
transmit powers, and channel spacing are addressed.
The goal of proper spacing and antenna selection is to provide sufficient isolation by way of antenna
radiation pattern, free space path loss, and adjacent or alternate adjacent channel receiver rejection to
provide independent operation of the collocated units. The goal is to have negligible throughput
degradation due to a CCA hold-off, and negligible receive sensitivity degradation due to a receive noise
floor increase.
radiation pattern, free space path loss, and adjacent or alternate adjacent channel receiver rejection to
provide independent operation of the collocated units. The goal is to have negligible throughput
degradation due to a CCA hold-off, and negligible receive sensitivity degradation due to a receive noise
floor increase.
Antenna proximity must be obeyed, and is dependent upon adjacent and alternate adjacent channel
usage.
usage.
148470
D2
D3
D4
C2
C3
C4
B2
B3
B4
148471
D2
D3
D4
C2
C3
C4
B2
B3
B4