Multi-link Receiver Differential Delay Management

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Solution Overview

Problem

The complexity of the Differential Delay Control Management (DDCM) mechanism in multi-link transmission systems can lead to additional delays and packet loss if not properly executed, complicating the recombination of data frames received through different transmission paths.

Innovation Solution

A multi-link receiving method and receiver that determine a reference delay range for each data section of a data frame based on a preset delay time and receiving time point, designating this range for recombination only when all sections are within it, thereby simplifying the DDCM process and reducing errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a complex DDCM mechanism is implemented to manage differential delays in multi-link transmission, then the recombination accuracy of data frames may be improved, but the system complexity and computational overhead increase significantly

Engineering Contradiction:
Improverecombination accuracyVSAvoidDDCM mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the data frame transmission into multiple independent links, with each link carrying a portion of the data frame. The receiver segments the recombination process by identifying which data sections belong to which data frame and managing them separately. This segmentation approach simplifies the overall DDCM mechanism by breaking down the complex recombination task into manageable parts, resolving the contradiction between recombination accuracy and system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary action by pre-establishing the relationship between data sections and their parent data frames at the transmitter side. Each data section is tagged with identification information about its parent data frame before transmission. This preliminary organization eliminates the need for complex real-time analysis at the receiver, improving recombination accuracy while reducing the complexity of the DDCM mechanism.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If data sections are transmitted through multiple link channels simultaneously, then the transmission bandwidth and efficiency are improved, but differential delays cause additional complexity in recombination and may lead to packet loss

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidpacket loss
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the receiver monitors the arrival status of data sections from multiple links and uses this information to control the recombination process. The receiver sends feedback information about which data sections have been successfully received and which are still pending, allowing the transmitter to adjust transmissions accordingly. This feedback loop ensures reliable recombination despite differential delays, maintaining packet integrity while preserving transmission efficiency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies dynamics by making the recombination process adaptive to the actual arrival patterns of data sections. Instead of using a fixed recombination strategy, the system dynamically adjusts the recombination timing and sequence based on the differential delays observed in real-time. This dynamic approach allows the system to handle varying transmission conditions across multiple links, improving reliability without sacrificing transmission efficiency.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the DDCM mechanism is simplified to reduce system complexity, then the ease of operation is improved, but the recombination accuracy and reliability may deteriorate

Engineering Contradiction:
ImproveDDCM operation simplicityVSAvoidrecombination accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements self-service by enabling the data sections to carry their own identification information that automatically indicates which data frame they belong to. The receiver simply needs to read these identifiers and group data sections accordingly, without requiring complex external control mechanisms. This self-service approach maintains high recombination accuracy while significantly simplifying the DDCM operation, resolving the contradiction between ease of operation and recombination reliability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11956134B2Multi-link receiving method and multi-link receiver
Publication Date: 2024.04.09 UFI SPACE CO LTD
  • US11956134B2 patent drawing
  • US11956134B2 patent drawing
  • US11956134B2 patent drawing

AI summary

The disclosure provides a multi-link receiving method and a multi-link receiver. The method includes the following. A reference delay range of a j-th data section is determined according to a preset delay time and a receiving time point of the j-th data section of an i-th data frame. In response to determining that the j-th data section is first received among an N number of data sections of the i-th data frame, the reference delay range of the j-th data section is taken as a designated delay range. In response to determining that receiving time points of the data sections of the i-th data frame are each within the designated delay range, the i-th data frame is restored based on the N number of data sections of the i-th data frame.