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A method and device for reducing power consumption of a remote optical module

An optical module and remote technology, applied in the field of optical communication, can solve the problem of not considering the influence of temperature and luminous power at the same time, and achieve the effect of optimal power consumption control

Active Publication Date: 2022-08-09
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional solutions, only the relationship between temperature and wavelength is considered, and the wavelength is controlled by adjusting the temperature to meet the requirements, but the influence of temperature on luminous power is not considered at the same time.

Method used

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  • A method and device for reducing power consumption of a remote optical module
  • A method and device for reducing power consumption of a remote optical module
  • A method and device for reducing power consumption of a remote optical module

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Experimental program
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Embodiment 1

[0060] In order to solve the technical problem that the loss reduction of the remote optical module is limited solely based on the self-adjustment of the AAU in the traditional solution, the embodiment of the present invention provides a method for reducing the power consumption of the remote optical module, which can be used in the TEC solution to reduce the power consumption of the TEC. It can also be used in the heating resistance scheme to reduce the power consumption of the heating resistance.

[0061] combine image 3 and Figure 4 , the method provided by the embodiment of the present invention mainly includes the following steps:

[0062] Step 10, the DU optical module detects its own optical power information, and receives the optical power information of the AAU optical module through a slow channel; wherein, the slow channel is set between the DU optical module and the AAU optical module, Specifically, it is an out-of-band top channel or an in-band management chan...

Embodiment 2

[0097] In the embodiment of the present invention, the method in the above-mentioned embodiment 1 is further described in detail by taking the use of TEC for wavelength control and the use of DFB laser as an example, as follows:

[0098] The relationship between the temperature and wavelength of the laser, the relationship between temperature and luminous power, the upstream dispersion cost and the downstream dispersion cost of the laser can be pre-calculated in the DU optical module, and saved for future use. Assuming that the transmission distance between the DU optical module and the AAU optical module is 10 km, the uplink dispersion cost and the downlink dispersion cost are both 1dBm.

[0099] When the AAU optical module is powered on, the corresponding ambient temperature is 35°C, the current temperature setting value T of the TEC is 60°C, and the temperature difference from the ambient temperature is 25°C. At this time, the standard wavelength emitted by the DFB laser is ...

Embodiment 3

[0118] On the basis of the methods provided in the above Embodiment 1 and the embodiment, the embodiment of the present invention further provides a device for reducing power consumption of a remote optical module, which can be used to implement the remote optical module described in Embodiment 1 and Embodiment 2. Modules to reduce power consumption.

[0119] like Figure 11 As shown, the device mainly includes a DU optical module at the central office and an AAU optical module at the remote end, and data exchange is performed between the DU optical module and the AAU optical module through a slow channel; wherein, the slow channel specifically Adjust the top channel for out-of-band or in-band management channel.

[0120] The DU optical module can detect its own optical power information, and receive the optical power information of the AAU optical module through the slow channel, and then according to the optical power information of the DU optical module detected by itself ...

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Abstract

The invention discloses a method and a device for reducing power consumption of a remote optical module. The DU optical module detects its own optical power information, and receives the optical power information of the AAU optical module through a slow channel; Calculate the optical power headroom in the DU sending direction and DU receiving direction, and select the smaller optical power headroom value from the two optical power headrooms; calculate the new temperature setting of the AAU optical module according to the selected optical power headroom value. Set the value so that the new temperature setting value meets the luminous power requirements and wavelength deviation requirements of the AAU optical module; the new temperature setting value is issued to the AAU optical module through the slow channel, and the AAU optical module adjusts according to the new temperature setting value Corresponds to the temperature set point of the TEC or heating resistor. The present application comprehensively considers the states of the optical modules at both ends, and realizes the temperature adjustment of the remote AAU optical modules on the DU side, thereby further reducing the power consumption of the optical modules on the AAU side.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and more particularly, relates to a method and a device for reducing power consumption of a remote optical module. Background technique [0002] 5G is the abbreviation of the fifth generation mobile communication. With the reconstruction of the wireless access network in 5G into CU (Centralized Unit, that is, centralized unit), DU (Distributed Unit, that is, distributed unit) and AAU (Active Antenna Unit, that is, there are Source antenna unit) three-level structure, 5G bearer network is also divided into fronthaul, midhaul and backhaul network accordingly, and the transmission network between DU and AAU is called fronthaul network. Among them, the DU is located at the central office, and the AAU is located at the remote end. [0003] The current 5G fronthaul network requires high bandwidth, low latency and low cost. Due to the small coverage of 5G base stations, more base stations...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/079H04B10/50H04B10/564H04B10/572
CPCH04B10/07955H04B10/503H04B10/564H04B10/572Y02D30/70
Inventor 高建河祝成军郑庆立陈洲汪钦和文娟赵佳丽
Owner GUANGXUN SCI & TECH WUHAN