Base Station Signal Parameter Control for Redundant Path Delay

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Solution Overview

Problem

Communication networks with redundant paths face challenges in maintaining consistent transmission delay values when switching between primary and redundant paths, affecting communication signal quality.

Innovation Solution

A method and device for controlling communication signal parameters, such as time align (TA), cyclic prefix (CP), and guard period (GP), based on transmission delay value differences when a redundant path is used, by obtaining and analyzing redundancy status data to adjust these parameters to maintain consistent delay values.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a redundant path is used in the communication network, then communication service stability is improved, but transmission delay value consistency deteriorates

Engineering Contradiction:

Improvecommunication service stabilityVSAvoidtransmission delay value consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent applies preliminary action by pre-obtaining transmission delay value difference data that quantifies the delay difference between primary and redundant paths before actual path switching occurs. This pre-characterization of delay characteristics enables the base station to proactively adjust communication signal parameters (such as timing advance values) in anticipation of path switching, thereby maintaining delay consistency while utilizing redundant paths for improved reliability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements parameter changes by dynamically adjusting communication signal parameters based on the obtained transmission delay value difference data. When path switching is detected, the base station modifies signal parameters (timing advance, cyclic prefix, guard period) to compensate for the delay difference between primary and redundant paths, thus maintaining consistent transmission delay values while allowing redundant path usage for reliability

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If communication signal parameters are adjusted to maintain delay consistency, then transmission delay value consistency is improved, but signal processing complexity increases

Engineering Contradiction:

Improvetransmission delay value consistencyVSAvoidsignal processing complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies feedback by implementing a monitoring mechanism that detects path switching status in real-time and feeds this information back to the base station. The base station then uses the pre-obtained delay difference data combined with the feedback signal to determine appropriate parameter adjustments, creating a closed-loop control system that maintains delay consistency through responsive, rather than continuously complex, signal processing

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12063131B2Communication signal processing method, and base station and headend device using the same

Publication Date: 2024.08.13 SOLID

AI summary

A communication signal processing method comprises obtaining transmission delay value difference data relating to a difference in transmission delay values in a communication network that varies depending on whether or not a redundant path is used, obtaining redundancy status data relating to whether the redundant path is used, and controlling a parameter of a communication signal transmitted by the communication network based on the transmission delay value difference data when the redundant path is used as a result of determination according to the redundancy status data.