Radio frequency system

A radio frequency system and radio frequency unit technology, applied in the field of radio frequency systems, can solve the problems of inconvenient expansion, reduced system reliability, and complicated maintenance.
CN102208940AInactive Publication Date: 2011-10-05DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2011-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a radio frequency system. According to the invention, a radio frequency remote operation can be carried out without adding external combined equipment. The radio frequency system comprises a filtering unit, a main control unit, and at least two radio frequency units. Each radio frequency unit is respectively connected with the main control unit and the filtering unit. The filtering unit is used for combining and filtering received signals of all radio frequency units and emitting filtered signals together by an antenna; besides, the filtering unit is also used for shunting and filtering received signals by the antenna and sending each received signal to a corresponding radio frequency unit. Each radio frequency unit is used for carrying out an amplifying and filtering process and a down conversion process on received signals from the filtering unit and sending the processed signals to the main control unit; besides, the each radio frequency unit is also used for carrying out modulation, up conversion, and amplification on signals from the main control unit and sending the processed signals to the filtering unit. The main control unit is used for allowing the signal transformation between a BBU and a radio frequency unit.
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Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a radio frequency system. Background technique

[0002] When the existing wireless communication system supports multiple standards and multiple frequency bands, it adopts an external combination installation method to fulfill the wireless network requirements. In order to support the application of more standards and frequency bands and reduce the cost of installation and removal, the antenna adopts a broadband design that can cover multiple frequency bands at the same time, such as figure 1 As shown, a single-antenna remote radio unit (RRU) is taken as an example. When RRUs of different standards are connected to antennas, a combination method is adopted.

[0003] The existing third-generation mobile communication base station system adopts the optical fiber remote RRU solution, and the earlier radio frequency remote solution has been greatly improved. It is a relatively...

Claims

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