Site Survey Considerations
Figure 56 | Example of ClientLink (directing the signal to a client, in this case 1 spatial stream) |
Note In order to beamform to clients using 3 spatial streams, since 3 transmitters are used in the transmissions the AP needs at least one additional radio to beamform. The AP 3600 has 4 radios pre band and can beamform to clients using 3 spatial streams.
To summarize, ClientLink 2.0 takes the received signals heard from the client on the uplink, calculates how the multipath signal looked from those streams, and then on the reciprocal side (transmit downlink) figures out the optimal way using all four radios to best form the signal (transmit beamforming) to enable the client to best decode (receive the signal on the downlink) with the least amount of retries.
ClientLink 2.0 with AP 3600 enables beamforming to all 802.11n clients, including 3SS clients, and can do so for up to 128 clients at a time. Note AP 1600 supports less clients (32) and does not support
For more information on Cisco ClientLink 2.0 refer to the following URL:
Site Survey Considerations
While ClientLink dynamically beamforms and helps to maintain a robust signal which results in fewer retries, it was not designed to change the cell range. ClientLink creates a better connection experience, not larger cell size.
For this reason, when conducting a survey it is important to keep in mind that the AP 3600 cell sizes are generally the same or very similar to other Cisco Access Points. Figure 57 depicts typical ranges in the
Cisco Aironet Series 1600/2600/3600 Access Point Deployment Guide, Release 7.5
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