Full-Duplex Link Training Parameter Adaptation

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Solution Overview

Problem

Full-duplex communication devices face increased latency and power consumption during training procedures due to the separation of training signal transmission and user information transmission, which hinders efficient signal processing adaptation.

Innovation Solution

A method where communication devices exchange training information to develop and adapt signal processing parameters simultaneously, allowing for quicker and more efficient adaptation of signal processing components, such as equalizers and cancellers, by initializing parameters based on received training information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If training signals are transmitted separately from user information, then signal processing components can be adapted, but latency increases and power consumption increases

Engineering Contradiction:

Improvesignal processing adaptationVSAvoidtraining procedure latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent merges training signal transmission with user information transmission by enabling full-duplex communication where both training signals and user data are transmitted simultaneously in both directions. This eliminates the sequential transmission approach that causes latency, allowing the training procedure to complete without delaying user data transmission.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements continuous training procedure execution during normal communication operation. By maintaining full-duplex transmission capability throughout the training process rather than completing training before data transmission, the system achieves continuous adaptation without interruption to user information flow, thereby reducing overall latency.

Inventive Principle:

Principle #20Continuity of useful action

2Reliability

If training signals are transmitted separately from user information, then signal processing components can be adapted, but power consumption increases

Engineering Contradiction:

Improvesignal processing adaptationVSAvoidtraining procedure power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines training signal transmission with user information transmission in the same time slots using full-duplex communication. This merging eliminates the need for separate training phases, thereby reducing the total time training signals are transmitted and consequently lowering power consumption while maintaining adaptation reliability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

By continuously executing training procedures during normal communication without requiring separate training phases, the system reduces the cumulative power consumption associated with repeated training signal transmissions. The training adapts in parallel with data transmission rather than sequentially, reducing total energy expenditure.

Inventive Principle:

Principle #20Continuity of useful action

3Reliability

If training procedure is completed before data transmission, then signal processing is fully adapted, but latency increases

Engineering Contradiction:

Improvesignal processing adaptationVSAvoidcommunication efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent merges the training procedure with data transmission operations, allowing both to occur simultaneously in full-duplex mode. This eliminates the sequential execution model where training must complete before data transmission begins, thereby reducing latency and improving communication efficiency while maintaining full adaptation reliability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The training procedure executes continuously throughout the communication session rather than as a preliminary phase. This continuous execution allows signal processing adaptation to occur in parallel with data transmission, eliminating the latency introduced by sequential execution and improving overall communication productivity.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS11843483B2Method and apparatus for training a full-duplex communication link

Publication Date: 2023.12.12 MARVELL ASIA PTE LTD

AI summary

During a training procedure for communicating via a full-duplex communication link, a first communication device receives training information from a second communication device. The training information corresponds to first signal processing parameters developed at the second communication device for use by the second communication device to process signals received by the second communication device via the full-duplex communication link. After receiving the training information from the second communication device, the first communication device develops second signal processing parameters to be used by the first communication device to process signals received by the first communication device via the full-duplex communication link. The second signal processing parameters are developed using the training information received from the second communication device.