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Digital optical fiber repeater and signal transmission method thereof

A digital optical fiber direct amplifier and signal transmission technology, which is applied in the field of communication, can solve the problems of poor real-time performance of transmission signals, achieve the effect of solving poor real-time performance of transmission signals, reducing processing steps, and enhancing real-time performance

Inactive Publication Date: 2013-10-16
北京裕源大通科技股份有限公司
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a digital optical fiber repeater and its signal transmission method to solve the problem of poor real-time performance of digital optical fiber repeater transmission signals in the prior art

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  • Digital optical fiber repeater and signal transmission method thereof
  • Digital optical fiber repeater and signal transmission method thereof
  • Digital optical fiber repeater and signal transmission method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0028] The CPRI protocol in the present invention refers to the general public radio interface protocol, which is spelled in English as Common Public Radio Interface; the CPRI frame signal refers to a signal satisfying the CPRI protocol.

[0029] The digital optical fiber repeater in the present invention includes a near-end unit and a far-end unit. After the downlink signal is transmitted to the far-end unit through the near-end unit, it reaches the communication terminal. After the uplink signal is transmitted to the near-end unit through the far-end unit, it reaches the base station. .

[0030] The embodiment of the signal transmission method of the digital optical fiber r...

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Abstract

The invention discloses a digital optical fiber repeater and a signal transmission method thereof. The method comprises the following steps that a near-end machine of the digital optical fiber repeater converts a downlink network signal into an intermediate frequency signal; the near-end machine packages the intermediate frequency signal into a CPRI frame signal according to a CPRI protocol; the near-end machine sends the CPRI frame signal to a remote terminal of the digital optical fiber repeater; the remote terminal detects whether a data link with the near-end machine is connected; if the data link of the remote terminal and the near-end machine is connected, the remote terminal acquires the intermediate frequency signal in the CPRI frame signal; and the remote terminal fills the acquired intermediate frequency signal into an IQ data segment. Through the method of the invention, the intermediate frequency signal is directly packaged into the CPRI frame signal and transmission is performed; frequency mixing is not needed and all the carrier frequency signals do not need to be moved to a base band so that a processing step before the transmission is reduced and real-time performance of the signal transmission is increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a digital optical fiber repeater and a signal transmission method thereof. Background technique [0002] The 3G network construction in the domestic communication field is in the ascendant, and the industrialization process of LTE (Long Term Evolution, that is, long-term evolution) has also started. At present, 2G, 3G, LTE, WLAN and other wireless network systems coexist. Among them, GSM's business positioning is voice, SMS and narrowband data services (<500kbps); TD_SCDMA leads users to change consumption habits, and the business support target is data services; TD_LTE business support targets high-speed data and has the function of carrying voice services, which is the direction of China Mobile's cellular network upgrade and evolution; WLAN, as an important wireless broadband access method, mainly covers areas with dense data flows, giving priority to 2G, and strong demand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/29
Inventor 孙玉静杨建明于宏图李大庆
Owner 北京裕源大通科技股份有限公司
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