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2.7.4

Receiver maximum input signal level

The receiver shall provide a maximum PER of 10% at an PSDU length of 1000 bytes for a maximum input level of

–10 dBm measured at the antenna for any baseband modulation.

2.7.5

IEEE does not specify this value. However, the radio interception point will be measured, and calculated. The

receiver interception point should reflect an acceptable performance for normal usage of the Orthus AP.

2.7.6

The receive channel power indicator also known as RSSI definition is described as follows. The RCPI indicator is a

measure of the received RF power in the selected channel. This parameter shall be a measure by the PHY sublayer

of the received RF power in the channel measured over the entire received frame. The received power shall be the

average over all receive chains. RCPI shall be a monotonically increasing, logarithmic function of the received

power level defined in dBm. The allowed values for the Received Channel Power Indicator (RCPI) parameter shall

be an 8 bit value in the range from 0 through 220, with indicated values rounded to the nearest 0.5 dB as follows:

— 0: Power not > -110 dBm

— 1: Power = -109.5 dBm

— 2: Power = -109.0 dBm

— and so on up to

— 220: Power not < 0 dBm

— 221-254: reserved

— 255: Measurement not available

where

RCPI = int{(Power in dBm +110)*2} for 0 dbm > Power > -110 dBm (21-76)

Accuracy for each measurement shall be +/- 5dB (95% confidence interval) within the specified dynamic range of

the receiver. The measurement shall assume a receiver noise equivalent bandwidth equal to the channel bandwidth

multiplied by 1.1.

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