When it comes to switching to S/4HANA – two schools of thoughts exist in terms of how to approach Greenfield or Brownfield. Which implementation do you go for?
Most SAP customers moving from SAP ERP Central Component (ECC) to S/4HANA actually need to do two migrations: They'll need to migrate to a new database, and they'll need tomigrate their applications to S/4HANA. Let's look at the differences between brownfield and greenfield approach...
In one embodiment, m is the number of longer training sequences per frame, N is the number of transmit antennas, the preamble (sometimes referred to as “Brownfield”) is for the case when .11a or .11g legacy devices present. The short training and long training sequences are the same ...