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Forward transmission architecture based on CRAN and construction method thereof

A base station and optical cable technology, applied in the CRAN-based fronthaul architecture and its construction field, can solve problems such as troubles, poor network protection, and many optical fiber resources, and achieve the effects of improving network security, saving optical fiber resources, and ensuring network reliability.

Pending Publication Date: 2022-04-19
CHINA MOBILE GROUP ZHEJIANG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical cable branch chain solution is simple to implement, but it occupies more optical fiber resources, which will cause troubles in areas with insufficient optical cable resources; at the same time, due to the star network architecture, the protection of the network is poor, and the business caused by the failure of the wireless service access layer 100% withdrawal rate

Method used

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  • Forward transmission architecture based on CRAN and construction method thereof
  • Forward transmission architecture based on CRAN and construction method thereof
  • Forward transmission architecture based on CRAN and construction method thereof

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Embodiment Construction

[0023] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] figure 1 A schematic structural diagram of a CRAN-based fronthaul architecture provided by an embodiment of the present invention is shown. like figure 1 As shown, the CRAN-based fronthaul architecture includes: base station 1, multiple backbone optical switches 2, node equipment room 3, and the The communication optical cable 4 between, wherein, a plurality of said backbone optical cables 2 form a ring to form a full-service optical c...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, and discloses a front-pass architecture based on a CRAN (China Radio Access Network) and a construction method thereof, the front-pass architecture comprises a base station, a plurality of trunk optical intersections, a node machine room and a communication optical cable arranged between the base station and the trunk optical intersections or between the base station and the node machine room, the plurality of main light beams are intersected into a ring to form a full-service optical cable which is connected with the node machine room; and forming a main route and a standby route between the base station and the node machine room based on the communication optical cable and the full-service optical cable by taking the machine room grid as a unit. Through the above mode, the embodiments of the present invention can satisfy CRAN networking architectures in different areas, save optical fiber resources, improve network security, and ensure network reliability.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular to a CRAN-based fronthaul architecture and a construction method thereof. Background technique [0002] The 5G radio access network will evolve from the two-level structure of the baseband processing unit (building base band unit, BBU) and remote radio unit (Remote Radio Unit, RRU) of the 4G / long term evolution (LTE) network to the centralized Unit (Centralized Unit, CU), distribution unit (Distributed Unit, DU) and active antenna processing unit (ActiveAntennaUnit, AAU) three-level structure. There are two different ways to deploy CU and DU. The way of separating CU and DU is called centralized radio access network (Centralized Radio Access Network, CRAN), and the way of combining CU and DU is called distributed radio access. Network (Distributed Radio Access Network, DRAN). Among them, the fronthaul is between the AAU and the DU, the ...

Claims

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Application Information

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IPC IPC(8): H04B10/2575H04J14/02H04W16/18H04W24/02
CPCH04B10/2575H04B10/25752H04B10/25753H04J14/0202H04W24/02H04W16/18
Inventor 王新吴赟怡蒋慧敏孙军辉
Owner CHINA MOBILE GROUP ZHEJIANG
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