Hi Tengfei,
My impression on your proposal is that you are trying to use the combination of 
the length of ADD CellList and DELETE CellList as sort of operation code. 
Right? If 6P really needs so many operations, why do we just add more operation 
codes, which could cost just 1 more bit?
ThanksQin 

    On Friday, December 9, 2016 10:53 AM, Tengfei Chang 
<[email protected]> wrote:
 

 Dear all, 
As we are going to have RELOCATE command in sixtop draft, then we will need add 
a specific format for RELOCATE. Though the format is not discussed yet, but I 
think finally it will ends up something with two list of cell in the packet and 
having (a) fields to indicate where the cell list to be added and list to be 
removed are. Of course , with RELOCATE command byte in the frame. I think this 
format can be a general format for ADD , DELETE  and RELOCATE.

With such format,    
   - if there is only list of cell to be added, then the frame can be 
represented as ADD command   

   - if there is only list of cell to be removed, then DELETE  command
   - if there are both two list of cell, and they have the same number, then 
RELOCATE command..
The benefit of using this two cell list format is that:
If the node wants to relocate one cell and at the same time add some cells OR 
delete some cells, with single sixtop transaction, which is   
   - there are two list of cell, one for adding, one for deleting, but length 
of adding list is longer than deleting list (Add command+Relocation command)   

   - there are two list of cell, one for adding, one for deleting, but length 
of adding list is shorter than deleting list (Delete command+Relocation command)
Let me know your thought.
Tengfei
-- 
Chang Tengfei,Pre-Postdoctoral Research Engineer, Inria
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