Could Revelation 4:1 be referred to the rapture

In revelation 4
Revelation 4:1
King James Version
4 After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
Could it be referred to as the rapture trumpet