SWRA670A April 2020 – October 2022 CC1350 , CC1352P , CC1352R , CC2400 , CC2420 , CC2430 , CC2500 , CC2520 , CC2530 , CC2538 , CC2540 , CC2541 , CC2543 , CC2544 , CC2545 , CC2564 , CC2590 , CC2591 , CC2592 , CC2620 , CC2630 , CC2640 , CC2650 , CC2652P , CC2652R , CC2652R7 , CC2652RSIP , CC3100 , CC3120 , CC3135 , CC3135MOD , CC3200 , CC3200MOD , CC3220MOD , CC3220MODA , CC3220R , CC3220S , CC3220SF , CC3230S , CC3230SF , CC3235MODAS , CC3235MODASF , CC3235MODS , CC3235MODSF , CC3235S , CC3235SF , WL1801MOD , WL1805MOD , WL1807MOD , WL1831
Equipment should consider a channel to be occupied as long as other RLAN transmissions are detected at a level greater than the ED Threshold Level (TL). The ED Threshold Level (TL) is integrated over the total Nominal Channel Bandwidth of all Operating Channels used by the equipment. The ED Threshold level (TL) depends on the type of equipment:
Option 1: For equipment that for its operation in the 5 GHz bands is conforming to IEEE 802.11™-2016, clause 17, clause 19 or clause 21, or any combination of these clauses, the ED Threshold Level (TL) is independent of the equipment's maximum transmit power (PH). Assuming a 0 dBi receive antenna the ED Threshold Level (TL) should be:
Equation 9. TL = -75 dBm/MHz |
Option 2: For equipment conforming to one or more of the clauses listed in Option 1, and to at least one other operating mode, and for equipment conforming to none of the clauses listed in Option 1, the ED Threshold Level (TL) should be proportional to the maximum transmit power (PH) according to the formula which assumes a 0 dBi receive antenna and PH to be specified in dBm e.i.r.p. The levels are shown in Table 6-19.
Maximum Tx Power (e.i.r.p.), dBm (PH) | ED Threshold Level (TL)(1) | Notes |
---|---|---|
For PH ≤ 13 dBm | -75 dBm/MHz | Assumes a 0 dBi receive antenna gain. |
For 13 dBm < PH < 23 dBm | -85 dBm/MHz + (23 dBm - PH) | |
For PH ≥ 23 dBm | -85 dBm/MHz |