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Signal transmission device and method

A signal and radio frequency signal technology, applied in the field of communication, can solve the problems of heavy maintenance burden, easy damage of optical fiber, complex construction of BBU+RRU scheme, etc., and achieve the effect of simple implementation and high utilization rate

Active Publication Date: 2013-04-17
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The inventor found through the research of the existing technology that in the existing BBU+RRU scheme, the BBU and the RRU are directly connected by optical fiber, which needs to install additional optical fiber and increase the photoelectric conversion unit, and the optical fiber is easy to be damaged, so it is necessary to use armored Therefore, the existing BBU+RRU scheme is complex in construction and heavy in maintenance

Method used

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  • Signal transmission device and method
  • Signal transmission device and method
  • Signal transmission device and method

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0042] see figure 1 , a signal transmission device provided by an embodiment of the present invention, the device includes: an accompanying signal frequency determination unit 101, a transmission frequency determination unit 102, a first frequency conversion unit 103, a first local oscillation unit 104, a first local oscillation control u...

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Abstract

The embodiment of the invention provides a signal transmission device and a signal transmission method for. The device comprises a signal sending device, a signal receiving device and a corresponding method. In a signal transmission scheme provided by the embodiment of the invention, frequency conversion processing is performed on a signal to be sent, so that the signal to be sent can be coupled to a coaxial cable and is sent in accompany with other signals of the coaxial cable; and the signal is restored in a signal receiving end through corresponding frequency conversion processing. The device and the method have the advantages of simple implementation, no need of the erection of a new optical fiber, no problem of maintaining the optical fiber, and improvement on the utilization rate ofa conventional coaxial cable.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a signal transmission device and method. Background technique [0002] With the development of communication technology, the standardized baseband-radio frequency interface has received extensive attention. Among the many interface standards that have emerged in recent years, the Common Public Radio Interface (CPRI, Common Public Radio Interface) is a general open interface standard. The economic simplicity of implementation has been supported by many parties. Products based on CRPI protocol standards have emerged one after another. The open general interface provides convenience for 3G base station products to save costs and improve versatility and flexibility. [0003] Taking the BBU+RRU multi-channel solution as an example, this solution uses the CPRI interface. Generally, there are floors between floors in a large building, walls in rooms, and space division b...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/02H04B1/06H04B3/00
Inventor 岳陵彭卫红冯云周桃园付卫香
Owner HUAWEI TECH CO LTD
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