signal strength question

[muhsi_2015]

Hi,

A smartphone is hardly getting RSSI -67 dBm while doing a survey .So Its sure that the second strongest signal should be less than -67 ,

So do we need to care  about this ?.

Does it means the  smartphone struggle when roaming ?

Thanks

[Sandeep Choudhary]

Hi,

Yes smartphone will have problem while roaming if you have not done the proper site survey.

For voice deployments, it is recommended that the cell edge should be at -67 dBm with 20 percent overlap.  VoIP solution at -67 dBm (perhaps the most widely-used value for VoIP deployment if I had to choose one), while another may say -70 dBm. In most cases the values will differ only by a couple dB.

A common practice is to design for signal strengths in the -65 to -70 dBm range with two or more APs overlapping throughout the coverage area.

Regards

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