The president of the German Football League, Reinhard Rauball, wants the German window to close on August 1 next summer.
German clubs such as Borussia Dortmund and Hamburg have already said they are in favour of the change.
The 36 clubs in Bundesliga 1 and 2 are likely to vote on any proposed changes at their next general meeting in December.
“I will bring forward a motion to shorten the transfer period,” DFL president, Reinhard Rauball, told SportBild.
“If a corresponding decision is taken, it would be put to vote at the member’s meeting in December.
“If the majority of the 36 professors are in favor, a corresponding application will have to be sent to the international federations via the DFB (German Football Association).
“This year, there has been trading that is no longer justifiable. That’s why a peg must be put in. You can do it that way.”