No, the idea was to say "prefix 0"=>31bit, "prefix 10"=>30bit, "prefix 11"=>2*15bit. If you need you can split the two bits to have the two 15 bit chunks aligne

No, the idea was to say "prefix 0"=>31bit, "prefix 10"=>30bit, "prefix 11"=>2*15bit. If you need you can split the two bits to have the two 15 bit chunks aligned identically.