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Distributed antenna system, and IQ data adapting device and method thereof

A distributed antenna and data adaptation technology, applied in the field of communications, can solve problems such as the inability to meet the development needs of digital DAS technology, and achieve the effect of improving deployment flexibility

Pending Publication Date: 2019-03-01
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology

[0005] Based on this, it is necessary to provide a distributed antenna system, its IQ data adaptation device and method for the technical problem that the expansion unit of the distributed antenna system in the traditional technology cannot meet the development requirements of digital DAS technology

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  • Distributed antenna system, and IQ data adapting device and method thereof
  • Distributed antenna system, and IQ data adapting device and method thereof
  • Distributed antenna system, and IQ data adapting device and method thereof

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Embodiment Construction

[0050] As described in the background art, with the increasing types of access units and remote unit devices, users have higher and higher requirements for the application flexibility of digital DAS. See Figure 1a , The digital DAS system mainly includes three parts, namely the access unit AU, the expansion unit EU and the remote unit RU.

[0051] See Figure 1b , The access unit AU obtains the digitized IQ data stream through radio frequency coupling (RF) or digital access (digital), where S1 represents the first channel IQ data, S2 represents the second channel IQ data, and Sk represents It is the IQ data of the kth channel, and the IQ data of each channel corresponds to an independent frequency band, sampling rate, bandwidth and other information. definition For all the IQ data sent by the access unit AU to the extension unit EU, the extension unit EU distributes the IQ data of the access unit AU to the corresponding remote unit RU. Represented as the IQ data sent by the ex...

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Abstract

The application relates to a distributed antenna system, and an IQ data adapting device and method thereof. The system comprises a downlink IQ data adapting device and an uplink IQ adapting device, the downlink IQ data adapting device comprises a downlink IQ data adapting processing module, a first deframing module, a first switch selection module, a first resampling module and a first framing module, the uplink IQ data adapting device comprises an uplink IQ data adapting processing module, a second deframing module, a second switch selection module, a second resampling module and a second framing module, and the downlink IQ data adapting device and the uplink IQ data adapting device can be applied to an extension unit (EU). Through introduction of the resampling module, IQ data of different channels, different frequency bands, different bandwidths and different sampling rates can be obtained from different access units (AU), and the IQ data of a specific channel, a specific frequencyband, a specific bandwidth and a specific sampling rate can be transmitted to a remote unit (RU) through IQ data adapting and resampling processing so that the deployment flexibility of the digital DAS is extended.

Description

Technical field [0001] This application relates to the field of communication technology, and in particular to a distributed antenna system, its IQ data adaptation device and method. Background technique [0002] With the development of communication technology, there are more and more communication frequency bands, wider bandwidth, and more and more antennas. In order to achieve better signal coverage, the application of digital distributed antenna systems (DAS) is becoming more and more extensive. . [0003] The digital DAS system mainly includes three parts, namely the access unit (AU), the extension unit (EU) and the remote unit (RU). First, in the access unit, obtain the digital base station information source through data access or RF coupling signal; then use optical fiber or network cable to transmit to the expansion unit. In the expansion unit, use optical fiber or network cable to transmit the base station information source to the In the remote unit; finally, in the re...

Claims

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Application Information

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IPC IPC(8): H04B7/04
CPCH04B7/04
Inventor 黄小锋李鹏程邓海龙
Owner COMBA TELECOM SYST CHINA LTD
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