==power_by_rate
	[non-ht][2G]={22,22,22,22,20,20,20,20,20,20,20,18}
	[non-ht][5G]={20,20,20,20,20,19,17,15}
	[ht][2G][20M][1NSS]={20,20,20,20,20,19,18,18}
	[ht][2G][20M][2NSS]={20,20,20,20,20,19,18,18}
	[ht][2G][40M][1NSS]={20,20,20,20,20,19,18,18}
	[ht][2G][40M][2NSS]={20,20,20,20,20,19,18,18}
	[ht][5G][20M][1NSS]={18,18,18,18,17,16,15,15}
	[ht][5G][20M][2NSS]={18,18,18,18,17,16,15,15}
	[ht][5G][40M][1NSS]={18,18,18,18,17,16,15,15}
	[ht][5G][40M][2NSS]={18,18,18,18,17,16,15,15}
	[vht][5G][20M][1NSS]={18,18,18,18,17,16,15,15,13,-128}
	[vht][5G][20M][2NSS]={18,18,18,18,17,16,15,15,13,-128}
	[vht][5G][40M][1NSS]={18,18,18,18,17,16,15,15,13,12}
	[vht][5G][40M][2NSS]={18,18,18,18,17,16,15,15,13,12}
	[vht][5G][80M][1NSS]={18,18,18,18,17,16,15,15,13,12}
	[vht][5G][80M][2NSS]={18,18,18,18,17,16,15,15,13,12}
	[he][2G][20M][1NSS]={20,20,20,20,20,19,19,18,17,16,15,15}
	[he][2G][20M][2NSS]={20,20,20,20,20,19,19,18,17,16,15,15}
	[he][2G][40M][1NSS]={20,20,20,20,20,19,19,18,17,16,15,15}
	[he][2G][40M][2NSS]={20,20,20,20,20,19,19,18,17,16,15,15}
	[he][5G][20M][1NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
	[he][5G][20M][2NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
	[he][5G][40M][1NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
	[he][5G][40M][2NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
	[he][5G][80M][1NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
	[he][5G][80M][2NSS]={18,18,18,18,17,16,15,15,14,13,11,11}
