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A low power consumption dsp device and its working method

A low-power, working technology, applied in the field of communication, can solve the problems of transmission distance and capacity limitation, and achieve the effect of low power consumption

Active Publication Date: 2022-03-25
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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  • A low power consumption dsp device and its working method
  • A low power consumption dsp device and its working method
  • A low power consumption dsp device and its working method

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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 clearly and completely described below in conjunction with 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 them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0058] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0059] The embodiment of the present invention provides a low-power DSP device and its working method, which performs hierarchical processing on some modules of the DSP device, selects specific hierarchi...

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Abstract

The present application relates to a low-power DSP device and its use method, and relates to the field of communication technology. The device includes: an adaptive equalization module, and the adaptive equalization module includes sequentially connected single-channel equalization sub-modules and a channel equalization module. MIMO equalization sub-module; CORDIC conversion module, CORDIC conversion module includes a plurality of CORDIC conversion sub-modules connected in sequence; frequency offset recovery module, frequency offset recovery module includes a plurality of frequency offset recovery sub-modules connected in sequence; phase offset recovery module, phase The bias recovery module includes a plurality of phase bias recovery sub-modules connected in sequence. This application classifies some modules of the DSP device. Based on the performance requirements, the specific classification modules are selected, and the unnecessary classification modules are turned off and do not work, so that the DSP device can maintain the lowest power consumption according to the link condition. state.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a low-power consumption DSP device and a working method thereof. Background technique [0002] In recent years, the bandwidth and distance requirements of the optical access network have increased tremendously. 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. The future PON system will adopt an advanced phase modulation format - quadrature phase shift keying (Quadrature Phase Shift Keying, QPSK), in order to effectively increase the data rate per wavelength. With the coherent receiving scheme, due to the high sensitivity and advanced digital signal processing (DSP, Digital Signal Process), while maintaining the extremely high receiving sensitivity of coherent detection, the input ...

Claims

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Application Information

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Patent Type & Authority Patents(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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