Endpoint RAI Assertion for Early Data Session Termination

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Solution Overview

Problem

Existing wireless network technologies do not provide techniques for endpoints to determine when and how to assert a release assistance indication (RAI) to terminate data session windows early, leading to inefficient power consumption in battery-powered devices.

Innovation Solution

A computer-implemented method that involves receiving a message, storing it in a buffer, extracting the message during an open data session window, transmitting data to a transceiver, and determining the presence of a last message indicator to instruct the transceiver to end the session early and transition to a lower power state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the transceiver is kept active during the entire data session window to ensure reception of incoming transmissions, then communication reliability is improved, but power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidtransceiver power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The endpoint performs partial action by keeping the transceiver active only for the minimum necessary duration to send the RAI and receive acknowledgment, rather than maintaining it active for the entire data session window. This reduces power consumption while ensuring reliable communication through the essential exchange.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The endpoint performs preliminary action by determining in advance that all data has been transmitted and proactively sending the RAI before the data session window expires. This allows the transceiver to be deactivated earlier than would traditionally be required, reducing power consumption while maintaining reliability.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If the endpoint terminates the data session window early by asserting RAI, then power consumption is reduced, but communication reliability may be compromised if the node is not ready

Engineering Contradiction:

Improvetransceiver power consumptionVSAvoidcommunication reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The system implements feedback by requiring the node to send an acknowledgment after receiving the RAI. The endpoint waits for this feedback to confirm that the node has processed the early termination request before deactivating the transceiver, ensuring communication reliability while enabling power savings.

Inventive Principle:

Principle #23Feedback

3Reliability

If the endpoint waits for permission from the node before terminating the data session window early, then communication reliability is maintained, but power consumption increases due to extended transceiver activity

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidtransceiver power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The endpoint performs self-service by autonomously determining when all data has been transmitted and unilaterally sending the RAI to terminate the data session window early, rather than waiting for the node's permission. The endpoint only waits for a brief acknowledgment, significantly reducing transceiver active time while maintaining reliability.

Inventive Principle:

Principle #25Self-service

4Reliability

If the endpoint keeps the transceiver active for the entire data session window, then no data is missed, but battery lifetime is reduced

Engineering Contradiction:

Improvedata reception reliabilityVSAvoidbattery lifetime

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The endpoint performs preliminary action by determining in advance that all data transmission is complete and proactively sending the RAI before the data session window expires. This allows the transceiver to be deactivated earlier, extending battery lifetime while ensuring no data is missed through the acknowledgment mechanism.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The endpoint performs partial action by maintaining transceiver activity only for the essential duration needed to send RAI and receive acknowledgment, rather than for the entire data session window. This significantly extends battery lifetime while maintaining data reception reliability through the feedback acknowledgment.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12192906B2Techniques for release assistance indication assertion

Publication Date: 2025.01.07 ITRON INC

AI summary

Techniques for transmitting data include a network device receiving a message, the message comprising data to be transmitted from the network device; storing the message in a buffer of the network device. During an open data session window, the network device: extracts the message from the buffer; and transmits, using a transmitter of the network device, at least data included in the message to a transceiver of the network device. The transceiver is configured to transmit the data outside of the network device. In response to determining that a header of the message includes a last message indicator, the network device: delays for a period of time; and after the period of time, instructs the transceiver to end the data session window early and transition to a lower power state.