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Distributed antenna system, multi-channel signal transmission system and method

A distributed antenna and signal transmission technology, applied in the field of communication, can solve the problem of high cost, achieve the effect of reducing construction, saving hardware investment and reducing cost

Active Publication Date: 2020-11-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, compared with the DAS that transmits a single signal, this requires twice as many feeders and devices, and the cost is higher

Method used

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  • Distributed antenna system, multi-channel signal transmission system and method
  • Distributed antenna system, multi-channel signal transmission system and method
  • Distributed antenna system, multi-channel signal transmission system and method

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Embodiment Construction

[0026]The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Among them, " / " in this application means or, for example, A / B can mean A or B; "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three A relationship, for example, A and / or B, may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the present application, unless otherwise specified, "plurality" means two or more.

[0027] like image 3 As shown in , it is a schematic diagram of the structure of the multi-channel signal transmission system provided by the embodiment of the present application. The multiplexing system includes a radio frequency module and a DAS. Wherein, the DAS includes M feeders and N antennas distributed at N positions, M is a positive intege...

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Abstract

The embodiment of the invention provides a distributed antenna system and a multi-channel signal transmission system and method so as to at least reduce the cost of the existing DAS (Distributed Antenna System) for transmitting multi-stream signals. The DAS comprises M feeders and N antennas distributed at N positions respectively, wherein M is a positive integer which is greater than or equal to2, N is a positive integer, and N is greater than or equal to M; each feeder in the M feeders is respectively connected to a different port in M ports of a radio frequency module; M adjacent antennasin the N antennas are respectively connected to different feeders in the M feeders; the communication coverage areas of S antennas in the M adjacent antennas form a coverage overlapping area, the coverage overlapping area supports Q-channel signal transmission, S can be an arbitrary value ranging between 2 and M, and Q can be all values ranging between 1 and S. The distributed antenna system can be applied to the technical field of communication.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a distributed antenna system (Distributed Antenna System, DAS), a multi-channel signal transmission system and method. Background technique [0002] With the development of Mobile Broadband (MBB), the popularity of smart terminals and the widespread use of mobile applications, people's demand for mobile data is growing rapidly. Through investigation and analysis, it is found that indoor coverage services account for about 90% of the total mobile broadband services, so many operators urgently need to expand the existing indoor systems. [0003] DAS is a commonly used technology to solve the problem of indoor coverage. It mainly consists of feeders, combiners, couplers, power splitters and antennas. At present, DAS has been deployed in indoor buildings in most cities, such as shopping malls, cinemas, gymnasiums, large corporate offices, hospitals, and schools....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/20H04W24/02H04B7/0413
CPCH04B7/0413H04W16/20H04W24/02
Inventor 阳建军陈卫民李铮铮
Owner HUAWEI TECH CO LTD