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IQ data transmission method of radio frequency zooming unit

A technology of radio frequency remote unit and data transmission method, applied in the field of 3G communication, can solve the problems of unfavorable and flexible networking, many limitations, increased space requirements, etc., to increase the coverage area, reduce the difficulty of selection, and improve the effect of flexibility

Active Publication Date: 2009-05-20
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0003] At present, the traditional method is that one optical port of one BBU controls and manages one RRU. This method has many limitations. On the one hand, it is not conducive to flexible networking, and the demand for space increases. In addition, it also increases costs for operators.

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  • IQ data transmission method of radio frequency zooming unit
  • IQ data transmission method of radio frequency zooming unit
  • IQ data transmission method of radio frequency zooming unit

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Embodiment Construction

[0018] The implementation of the present invention will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0019] The invention relates to a method for cascade transmission of radio frequency remote unit RRU IQ data in NODE-B in the field of TD-SCDMA and WCDMA. In the prior art, one optical port of a BBU controls and manages one RRU. This method has many limitations. Therefore, the idea of ​​the present invention is to introduce cascading technology, so that one optical port of a BBU can manage and control multiple RRUs. RRUs cascaded together in a chain. Through remote radio and RRU cascading, the coverage area of ​​the base station can be increased, the flexibility of networking can be improved, and the difficulty of operator's urban computer room selection can be greatly ...

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Abstract

The invention discloses a method for transmitting IQ data of radio-frequency remote units, which achieves cascade transmission for the IQ data. The method cascades the radio-frequency remote units to a baseband pool unit in a chain mode, a carrier number occupied by the IQ data of each radio-frequency remote unit is distributed by the baseband pool unit, and the IQ data are organized and transmitted according to a frame format. Trough cascade of the radio-frequency remote units (RRU), the method increases coverage area of a base station, improves flexibility of network arrangement, and reduces selection difficulty of a machine room greatly.

Description

technical field [0001] The invention relates to 3G communication technology, in particular to an IQ data transmission method of a remote radio unit. Background technique [0002] The whole TD-SCDMA system is composed of base station (Node B), radio network controller (RNC), core network system (CN) and mobile station (UE). With the development of wireless radio frequency technology, the development of the base station tends to separate the baseband signal processing and the intermediate radio frequency processing, and the intermediate radio frequency part is pulled away through the optical fiber. In the base station (Node B), the main control part and baseband processing part are called BBU (Base Band Unit), and the digital IF processing and radio frequency parts are called RRU (Radio Remote Unit). [0003] The current traditional method is that one optical port of one BBU controls and manages one RRU. This method has many limitations. On the one hand, it is not conducive t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/15H04B7/216H04B1/707
Inventor 吴俊吴少华
Owner ZTE CORP
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