Patent ID: 8270833

Claim:
A passive optical network (PON) system supporting wireless communication, comprising: an optical line terminal (OLT), for sending a downstream optical signal and receiving an upstream optical signal; an optical distribution network (ODN), having an optical circulator assembly and first, second, . . . n th optical fibers, wherein n is a positive integer greater than 2, the optical fibers are connected to the optical circulator assembly in sequence, the first optical fiber is connected to the OLT and transmits the downstream optical signal and the upstream optical signal, and the optical circulator assembly guides the optical signals from a i th optical fiber to a (i+1) th optical fiber, i is a positive integer and i<n ; and a plurality of optical network units (ONUs), connected to the second, . . . n th optical fibers respectively, wherein each of the ONUs receives the optical signals from the corresponding second, . . . n th optical fiber, generates the upstream optical signal, and then transmits the upstream optical signal back to the corresponding second, . . . n th optical fiber; each of the ONUs corresponding to the second, . . . (n−1) th optical fiber processes the received downstream optical signal and transmits the processed downstream optical signal back to the corresponding second, . . . (n−1) th optical fiber; at least one of the ONUs is configured with a remote antenna, and the ONU configured with the remote antenna combines data received by the remote antenna with the upstream optical signal, wherein the ONU corresponding to the second optical fiber comprises an upstream transmitter for converting an electrical signal to be uploaded to generate the upstream optical signal and transmitting the upstream optical signal back to the second optical fiber; and wherein each of the ONUs respectively connected to the third, . . . n th optical fiber comprises an upstream receiver and an upstream transmitter; the upstream receiver receives and converts the upstream optical signal into a received electrical signal; and the upstream transmitter combines an electrical signal to be uploaded with the received electrical signal to generate the upstream optical signal, and transmits the upstream optical signal back to the corresponding second, . . . n th optical fiber.