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
Frame Based Equipment is equipment where the transmit/receive structure has a periodic timing with a periodicity equal to the Fixed Frame Period. A single Observation Slot should have duration of not less than 9 μs.
Frame Based Equipment should implement a Listen Before Talk (LBT) based Channel Access Mechanism to detect the presence of other RLAN transmissions on an Operating Channel.
Frame Based Equipment is further classified into two types based on their operation. A device that initiates a sequence of one or more transmissions is denoted as the Initiating Device. Otherwise, the device is denoted as Responding Device. Frame Based Equipment may be an Initiating Device, a Responding Device, or both.
Frame Based Equipment being capable of simultaneous transmissions in adjacent or non-adjacent Operating Channels may use any combination/grouping of 20 MHz Operating Channels out of the list of channels (Nominal Centre Frequencies) provided in Section 6.2.1, if it satisfies the channel access requirements (Channel Access Mechanism) for an Initiating Device as described in Section 6.2.8.1.1 on each such 20 MHz Operating Channel.
The example of timing for Frame based equipment is shown in Figure 6-2.