Multimode digital radio frequency remote system

The utility model relates to a communication system, and especially relates to a multimode digital radio frequency remote system. The multimode digital radio frequency remote system comprises two near-end access units which are mutually connected and one far-end covering unit, wherein each near-end...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHENG LUSHI, ZHANG XITONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model relates to a communication system, and especially relates to a multimode digital radio frequency remote system. The multimode digital radio frequency remote system comprises two near-end access units which are mutually connected and one far-end covering unit, wherein each near-end access unit comprises a base station, and a filter, a circulator, a downward adapter, an intermediate processing unit, an A/D conversion unit and a base-band digital processing unit which are sequentially connected on the base station; the far-end covering unit comprises a D/A converter, an intermediate frequency processing unit, a PLL phase-locked ring, a high-efficiency power amplifier, a combiner and a radio frequency output port which are sequentially connected; and the near-end access units and the far-end covering unit are connected with WLAN switches. The beneficial of the multimode digital radio frequency remote system has the following beneficial effects: 1) devices are highly integrated, and thus supporti