Adaptive Frequency Band Planning for Dynamic Point-to-Multipoint Communication

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Solution Overview

Problem

Existing point-to-multipoint communication systems face significant signal attenuation and data loss due to signal reflections, and existing continuous transmission modes require extensive re-training to adapt to changes in channel characteristics, making them impractical for dynamic environments.

Innovation Solution

Implementing a method where data is transferred using an initial frequency band plan, with the ability to switch to a modified frequency band plan if channel characteristics change, allowing network nodes to dynamically adjust bandwidth based on priority and channel conditions to minimize data loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If continuous transmission mode is used with extensive training prior to data transmission, then data rates are relatively high, but the system requires long re-training time (approximately 30 seconds) to adapt to changes in channel characteristics

Engineering Contradiction:

Improvedata rateVSAvoidre-training time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent implements dynamic frequency band planning that allows the communication system to adapt to channel changes without complete re-training. The system continuously monitors channel characteristics and dynamically adjusts frequency band allocations, enabling quick adaptation to topology changes while maintaining high data rates.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system performs preliminary channel characterization and maintains training data structures in advance. By pre-processing channel information and maintaining ready-to-use training data, the system minimizes the time required to adapt when channel characteristics change, avoiding the need for lengthy re-training sequences.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If point-to-multipoint communication systems are used to distribute high-speed data to multiple network nodes, then information exchange efficiency is improved, but signal reflections cause significant signal attenuation and data loss

Engineering Contradiction:

Improveinformation exchange efficiencyVSAvoiddata loss

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent segments the frequency spectrum into multiple frequency bands and assigns different bands to different network nodes. This segmentation approach allows simultaneous communication with multiple nodes while minimizing signal reflections and interference, as each node operates on dedicated frequency bands.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system implements local frequency band planning where each network node is assigned specific frequency bands optimized for its particular channel characteristics. This local optimization reduces signal attenuation and data loss by tailoring the frequency allocation to the specific requirements of each node's communication path.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If existing frequency band plans are used in point-to-multipoint communication systems, then data transfer is simplified, but the systems cannot accurately account for changes in communication channel characteristics during service

Engineering Contradiction:

Improvedata transfer simplicityVSAvoidchannel characteristic adaptation

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements a feedback mechanism where the system continuously monitors channel characteristics during data transfer and uses this information to dynamically adjust frequency band plans. The feedback loop enables the system to maintain optimal performance by adapting to channel changes while preserving the simplicity of automated frequency management.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically changes frequency band parameters based on monitored channel characteristics. By adjusting frequency allocations, bandwidth assignments, and other transmission parameters in response to channel conditions, the system maintains both operational simplicity and adaptability to changing communication environments.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS7656900B2Methods and systems for adaptive communication

Publication Date: 2010.02.02 QUANTEFI CORP

AI summary

One embodiment of the present invention relates to a method of limiting data loss in a point-to-multipoint communication system. Data is transferred on a communication channel among network nodes of the point-to-multipoint communication system according to an initial frequency band plan. If a characteristic of the communication channel changes, then data is transferred among the network nodes according to a modified frequency band plan that differs from the initial frequency band plan.