Donor antenna device, service antenna device used in wireless relay system and signal transmission method of the same

摘要

A signal transmission method used in a donor or a service antenna device in a wireless relay station is provided. The signal transmission method comprises receiving a first and a second direction signals by using an antenna and an optical transmission module. Each of a plurality of band filters performs filtering on the first direction signal. A control unit determines a transmission mode of the first signal according to the band of it. The control unit activates one of a plurality of first direction filters and one of a plurality of second direction filters between the antenna and the optical transmission module according to the transmission mode. The first and the second direction signal are transmitted to a remote device and an optical fiber connected device through the antenna and the optical transmission module. A donor antenna device and a service antenna device are disclosed herein as well.

主权项

1. A donor antenna device used in a wireless relay station, wherein the donor antenna device comprises:
an antenna; an optical communication module, wherein one of the antenna and the optical communication module receives a first direction signal and the other one of the antenna and the optical communication module receives a second direction signal; a first direction transmission module comprising:
a plurality of band filters each corresponding to a specific frequency band and each for performing a filtering process on the first direction signal to generate a filtering result;a control unit receiving the filtering result from the band filters to determine a frequency band that the first direction signal corresponds to and a transmission mode of the first direction signal; anda plurality of first direction filtering units connected in parallel between the antenna and the optical communication module; and a second direction transmission module comprising a plurality of second direction filtering units connected in parallel between the antenna and the optical communication module; wherein the control unit activates one of the first direction filtering units and one of the second direction filtering units corresponding to the transmission mode of the first direction signal to transmit the first direction signal and the second direction signal to a remote device and an optical fiber-connected device through the antenna and the optical communication module respectively.