Abstract: A repeater includes a donor device, a service device, a down-link circuit and an up-link circuit. The donor device includes a first receiving antenna array, a first transmitting antenna array and a first antenna controller. The first receiving antenna array and the first transmitting antenna array are disposed on a first substrate having a first normal direction. The service device includes a second transmitting antenna, a second receiving antenna and a second antenna controller. The second transmitting antenna and the second receiving antenna are disposed on a second substrate having a second normal direction. The first normal direction is different from the second normal direction, and the first receiving antenna array and the first transmitting antenna array are orthogonally polarized with each other.

Abstract: A method for controlling an antenna array is provided, which includes following steps. Associations with a plurality of mobile devices are established, and at least one characteristic parameter table corresponding to the mobile devices is generated. When a plurality of transmission request signals are received simultaneously and the mobile devices are divided into a user group, a multi-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and a plurality of data streams corresponding to the mobile devices are transmitted simultaneously through the antenna array. When the transmission request signals are received simultaneously and the mobile devices are not divided into the user group, a single-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and the data streams corresponding to the mobile devices are transmitted one-by-one through the antenna array.

Abstract: A repeater includes a donor device, a service device, a down-link circuit and an up-link circuit. The donor device includes a first receiving antenna array, a first transmitting antenna array and a first antenna controller. The first receiving antenna array and the first transmitting antenna array are disposed on a first substrate having a first normal direction. The service device includes a second transmitting antenna, a second receiving antenna and a second antenna controller. The second transmitting antenna and the second receiving antenna are disposed on a second substrate having a second normal direction. The first normal direction is different from the second normal direction, and the first receiving antenna array and the first transmitting antenna array are orthogonally polarized with each other.

Abstract: A method for controlling an antenna array is provided, which includes following steps. Associations with a plurality of mobile devices are established, and at least one characteristic parameter table corresponding to the mobile devices is generated. When a plurality of transmission request signals are received simultaneously and the mobile devices are divided into a user group, a multi-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and a plurality of data streams corresponding to the mobile devices are transmitted simultaneously through the antenna array. When the transmission request signals are received simultaneously and the mobile devices are not divided into the user group, a single-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and the data streams corresponding to the mobile devices are transmitted one-by-one through the antenna array.