1. A method for wireless communication in a user equipment (UE), comprising:receiving a first signaling; and
transmitting a first wireless signal in Q1 air interface resource(s);
wherein the first signaling is configured to determine L1 multiple access signature group(s); any one of the L1 multiple access signature group(s) includes multiple access signatures; each of the Q1 air interface resource(s) includes a time-frequency resource and a multiple access signature; the first wireless signal includes Q1 wireless sub-signal(s), and the Q1 wireless sub-signal(s) is(are) respectively transmitted by Q1 antenna port group(s), any one of the Q1 antenna port group(s) is composed of a positive integer number of antenna ports; the L1 is a positive integer; the Q1 is a positive integer greater than 1, the multiple access signatures included in any two of the Q1 air interface resource(s) are different, only when the Q1 multiple access signatures included in the Q1 air interface resource(s) belong to one of the L1 multiple access signature group(s), first wireless signal can be assumed to be transmitted by a terminal; or the Q1 is 1, the Q1 multiple access signature included in the Q1 air interface resource(s) is a multiple access signature other than the L1 multiple access signature group(s); the transmission of the first wireless signal is grant-free.