Multi-Superframe CTA Adjustment via Information Element

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies due to the need for repeated requests for channel time allocation adjustments across multiple superframes, leading to excessive overhead and reduced throughput, especially in bursty data transmission scenarios with varying latency requirements.

Innovation Solution

A method is introduced to request channel time allocation extensions or truncations that apply across multiple superframes, using an Information Element (IE) to specify the number of superframes affected, eliminating the need for repeated requests within each superframe.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If repeated requests for CTA adjustment are made in each superframe, then channel time allocation can be precisely adjusted to match actual data transmission needs, but overhead increases and throughput decreases

Engineering Contradiction:

ImproveCTA adjustment flexibilityVSAvoidnetwork throughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by allowing a device to predict its future CTA needs and submit a single extension request that spans multiple superframes in advance. Instead of waiting to make separate adjustments each superframe, the device proactively requests extended CTA coverage for N superframes at once, reducing the frequency of control messages while ensuring timely channel access for bursty data transmissions

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent merges multiple separate CTA adjustment requests into a single unified request that covers multiple superframes. By combining what would traditionally be N individual adjustment messages (one per superframe) into one consolidated request, the system reduces overhead while achieving the same adaptive CTA adjustment effect across the multi-superframe period

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If repeated CTA adjustment requests are transmitted in each superframe, then accurate channel time management is achieved, but excessive overhead is generated

Engineering Contradiction:

Improvechannel time management accuracyVSAvoidoverhead

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The device performs preliminary action by predicting its channel time needs across multiple superframes and submitting a single extension request in advance. This preliminary request includes the duration parameter indicating how many superframes the extension should cover, allowing the system to manage channel time accurately without generating repeated control messages for each superframe

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent transforms the periodic repeated adjustment requests into a single action that covers a periodic interval of N superframes. The CTA extension is granted for a duration spanning multiple superframes, effectively replacing multiple periodic control operations with one extended operation, thereby reducing overhead while maintaining management accuracy

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS8670434B2Dynamic CTA adjustment across superframes in a wireless network

Publication Date: 2014.03.11 TAHOE RES LTD

AI summary

In a wireless communications network, various embodiments of the invention provide a technique for requesting an extension or truncation of the previously assigned channel time allocation (CTA), and extending that extension or truncation across multiple superframes without having to make further requests. The request may be made by transmitting an Information Element (IE) that indicates how many superframes the request applies to.