Is EN 300 328 V1.8.1 the end of ZigBee, Z-Wave and all other radio protocols riding on 802.15.4?
Does it mean, that we all will deinstall our 804.15.4 based ISM devices? IEEE 802.15.4 divides the 2.4 GHz band into 15 channels. ETSI Draft 1.8.1 requires that a radio system must use at least 15 channels. Now, if one is disturbed, it must be kept for long periods. Now if only provides for a wireless standard 15 channels, and release even a must, it falls below the minimum number of channels. As a result of such a radio technology in 2015 are no longer permitted by the Federal Network Agency and by a user can no longer be used.
Are you aware that GoogleÂ´s Open Source radio protocol on 6LoWPAN will support frequency hopping?
Text out of ETSI ERM TG11 #23 Meeting
Channel Access Mechanism (CAM)
It was decided that TG11 members should now concentrate and prepare contributions on the CAM rather than to continuing influencing the MU formula and itâ€™s limit.
Duty cycle for hoppers
Changes on the observation time for adaptive systems (from 1s to 40s -> this means 1s for non-hoppers and 40s for hoppers). The observation time should be different to the non-adaptive. The revision of the duty cycle section is to be done offline (by correspondence). The objective is to cover duty cycle and TX-on/TX-off times in this section. The terms TX-on/TX-off should not be used.
Hopping frequency separation
Reduce the separation (0.1MHz) in order to make use of the gaps between channels. This is only for adaptive systems.
Adaptive Frequency Hopping
Many questions about how to treat that equipment which falls below the MU threshold. The question is what happens with the adaptive systems when going below the [10%] (should it remain adaptive?). Adaptive Frequency Hopping with DAA (Detect and Avoid),
Adaptive Frequency Hopping with Blacklisting
For further review.