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Wireless fronthaul passive optical network pon system, optical network equipment and method

An optical network unit and wireless technology, applied in the field of communication, can solve problems such as low transmission efficiency and large fronthaul bandwidth

Inactive Publication Date: 2019-06-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the fronthaul bandwidth required for transmission between the RRU and the BBU using the CPRI interface is very large, resulting in low transmission efficiency

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  • Wireless fronthaul passive optical network pon system, optical network equipment and method
  • Wireless fronthaul passive optical network pon system, optical network equipment and method
  • Wireless fronthaul passive optical network pon system, optical network equipment and method

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Embodiment approach

[0122] In addition, in figure 2 On the basis of the illustrated embodiment, this embodiment also provides a preferred implementation of the wireless compatible module 21, which may include:

[0123] a decoding unit 211, configured to decode the first data;

[0124] A serial-to-parallel conversion unit 212, configured to convert the decoded first data from serial data to parallel data to obtain two paths of data orthogonal to each other;

[0125] The CPRI deframing unit 213 is configured to respectively extract the CPRI control word from the two paths of orthogonal data to obtain the CPRI control word and the second data including the two paths of orthogonal data.

[0126] Further, in figure 2 On the basis of the illustrated embodiment, this embodiment also provides a preferred implementation of the frequency aggregation module 24, which may include:

[0127] The fast Fourier transform FFT unit 241 is configured to perform FFT transformation on the third data and the contr...

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Abstract

The embodiment of the present invention relates to a wireless fronthaul passive optical network PON system, optical network equipment and method. The OLT performs wireless compatible processing on the data received from the CPRI interface of the BBU and then divides it into a data part and a control word part. The two parts are processed separately, so that the data part can be compressed as much as possible to reduce the fronthaul bandwidth and improve the transmission efficiency.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a wireless fronthaul passive optical network (PON) system, optical network equipment and method. Background technique [0002] Passive Optical Network (PON) has gradually become the mainstream technology in the field of broadband access. With the rapid development of various broadband services: video conferencing, 3D TV, mobile backhaul, and interactive games, the demand for access bandwidth Higher and higher. In the face of future broadband evolution, larger bandwidth, long distance, and large branches are required. [0003] At present, the wireless network base station signal backhaul adopts the backhaul link (backhaul) method, the baseband processing unit (Band width Based Unit, BBU) equipment is centralized, and each radio remote unit (Radio Remote Unit, RRU) is located in the remote On the base station, transmission between the RRU and th...

Claims

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Application Information

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IPC IPC(8): H04B10/40
CPCH04B10/40H04B10/2575
Inventor 周雷林华枫刘翔
Owner HUAWEI TECH CO LTD