The present disclosure discloses a method and device for multi-antenna transmission in UE and base station. The user equipment first receives a first radio signal at first, then receives a first signaling. The first radio signal is transmitted by K antenna port groups, and the antenna port group includes a positive integer number of antenna port(s), and the first antenna port group is one of the K antenna port groups. The first signaling is used to determine a first time resource pool, at least one first antenna virtualization vector and the second antenna virtualization vector is associated with the first antenna port group. The invention effectively reduces signaling overhead of wireless resource dynamic scheduling of a massive MIMO system.