SWITCH APPARATUS, COMMUNICATION METHOD, AND RELATED DEVICE

Disclosed in the embodiments of the present application are a switch apparatus, a communication method, and a related device. The switch apparatus comprises N+X first ports, K+N second ports and N combiners, wherein K second ports are respectively connected to K antennas on a one-to-one basis; N second ports are respectively connected to respective first input ends of the N combiners on a one-to-one basis; and respective output ends of the N combiners are respectively connected to N first ports on a one-to-one basis. The switch apparatus is used for: connecting an ith first port of the N first ports to a jth second port of the K second ports, and transmitting a first-type signal by means of a jth antenna; and when a second-type signal needs to be transmitted by means of the jth antenna, connecting an sth first port of X first ports to an ith second port of the N second ports, and transmitting the second-type signal by means of the jth antenna. By means of the embodiments of the present application, the circui