Multi-channel indoor distribution system and MIMO signal transmission method thereof

An indoor distribution system and signal transmission technology, applied in the field of multi-channel indoor distribution system and its MIMO signal transmission, can solve the problems of difficult construction, high cost, and inability to monitor the status of the coverage terminal, and achieve the effect of solving the coverage problem

Active Publication Date: 2020-06-19
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method needs to be replaced with passive devices that support 5G frequencies. The system design is complex, the cost is high, coordination is difficult, construction is difficult, and the status of the coverage end cannot be monitored.

Method used

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  • Multi-channel indoor distribution system and MIMO signal transmission method thereof
  • Multi-channel indoor distribution system and MIMO signal transmission method thereof
  • Multi-channel indoor distribution system and MIMO signal transmission method thereof

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Embodiment Construction

[0027] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0028] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0030] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The invention discloses a multi-channel indoor distribution system and an MIMO signal transmission method thereof, and relates to the field of mobile communication. The system comprises a near-end unit configured to shift frequencies of first signals output by a plurality of signal source channels to different frequency points to form a plurality of second signals having different frequency points; a combiner which is configured to combine the multiple paths of second signals with different frequency points into a path of third signal and transmit the third signal to a cable of the single-channel indoor distribution system; and each far-end unit in the plurality of far-end units corresponds to one signal source channel, and is configured to perform filtering processing on the received third signal to obtain a path of second signal corresponding to the signal source channel, perform frequency shift on the frequency of the second signal to obtain a first signal output by the corresponding signal source channel, and send the first signal to the terminal. According to the invention, the problem of indoor MIMO signal coverage can be solved on the premise that cables and passive devicesof an original single-channel indoor distribution system are not changed.

Description

technical field [0001] The present disclosure relates to the field of mobile communications, and in particular to a multi-channel indoor distribution system and a MIMO (Multiple-In Multiple Out, multiple-input-multiple-out) signal transmission method thereof. Background technique [0002] With the explosive growth of mobile Internet, Internet of Things and industrial applications, higher requirements are placed on the coverage of mobile signals. As the development direction of mobile communication technology, 4G and 5G will realize the real "Internet of Everything". However, 4G and 5G systems have high frequencies, large space losses, and poor penetration capabilities, which reduce the effective coverage area of ​​outdoor base stations. In the indoor environment, the mobile communication signal coverage is weak, and the terminal cannot be used normally, forming a blind area and a shadow area of ​​the mobile communication. [0003] The indoor distribution system is the supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/024H04B7/0413H04B7/08H04W16/20H04W16/26
CPCH04B7/024H04B7/0413H04B7/084H04W16/20H04W16/26
Inventor 吴锦莲熊尚坤何志强张光辉陆立王庆扬魏垚
Owner CHINA TELECOM CORP LTD
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