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Low-power-consumption DSP device and using method thereof

A low-power, sub-module technology used in the field of communications to solve problems such as transmission distance and capacity limitations

Active Publication Date: 2021-04-09
WUHAN POST & TELECOMM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the current passive optical network (PON, Passive Optical Network) system, both upstream and downstream transmission adopt traditional intensity modulation and direct detection schemes, and the transmission distance and capacity are limited

Method used

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  • Low-power-consumption DSP device and using method thereof
  • Low-power-consumption DSP device and using method thereof
  • Low-power-consumption DSP device and using method thereof

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Embodiment Construction

[0057] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0058] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0059] Embodiments of the present invention provide a low-power DSP device and a method for using the same, which perform hierarchical processing on part of the modules of the DSP device, select s...

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Abstract

The invention relates to a low-power-consumption DSP device and a using method thereof, and relates to the technical field of communication, the device comprises an adaptive equalization module, the adaptive equalization module comprises a single-channel equalization sub-module and an MIMO equalization sub-module used for channel equalization work which are connected in sequence; a CORDIC conversion module, wherein the CORDIC conversion module comprises a plurality of CORDIC conversion sub-modules which are connected in sequence; a frequency offset recovery module comprising a plurality of frequency offset recovery sub-modules which are connected in sequence; and a phase offset recovery module which comprises a plurality of phase offset recovery sub-modules connected in sequence. Partial modules of the DSP device are graded, specific grading modules are selected on the basis of performance requirements, and the unnecessary grading modules are closed and do not work, so that the DSP device can keep a lowest-power-consumption working state according to link conditions.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a low-power consumption DSP device and a method for using the same. Background technique [0002] In recent years, the bandwidth and distance requirements of optical access networks have grown tremendously. In the current Passive Optical Network (PON, Passive Optical Network) system, traditional intensity modulation and direct detection schemes are used for upstream and downstream transmission, and the transmission distance and capacity are limited. Future PON systems will adopt an advanced phase modulation format - Quadrature Phase Shift Keying (QPSK) to effectively increase the data rate per wavelength. With the coherent receiving scheme, due to the high sensitivity and the advanced nature of digital signal processing (DSP, Digital Signal Process), while maintaining the extremely high receiving sensitivity of coherent detection, the input dynamic range is expand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/61
CPCH04B10/6164H04B10/6165H04B10/61
Inventor 李婕曾韬孟令恒张旭
Owner WUHAN POST & TELECOMM RES INST CO LTD
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