Terminal Uplink Failure Detection Via Timing Offset Comparison

Solution Overview

Problem

Uplink transmission failures occur due to insufficient time for scheduled uplink transmissions, which are not adequately addressed by existing technologies, leading to resource waste and interference in wireless communication systems.

Innovation Solution

A terminal device determines uplink transmission failures based on conditions related to uplink transmission time offsets and timing advance values, and transmits a message to the network device, which can then adjust scheduling or initiate recovery procedures to prevent further failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the uplink transmission time offset is reduced to increase scheduling flexibility, then scheduling adaptability is improved, but uplink transmission reliability deteriorates due to insufficient processing time

Engineering Contradiction:

Improvescheduling flexibilityVSAvoiduplink transmission reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The terminal device performs preliminary determination of whether an uplink transmission failure condition is met by comparing the uplink transmission time offset with the timing advance value before actual transmission. This allows the device to proactively identify scheduling conflicts and report them to the network device, preventing transmission failures before they occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The terminal device provides feedback to the network device by reporting the uplink transmission failure condition when the time offset is insufficient. This feedback mechanism enables the network device to adjust scheduling parameters and avoid assigning conflicting transmission timings, thereby resolving the contradiction between scheduling flexibility and transmission reliability.

Inventive Principle:

Principle #23Feedback

2Productivity

If the uplink transmission time offset is less than the timing advance value, then scheduling efficiency is improved, but transmission failure occurs due to insufficient time for signal transmission

Engineering Contradiction:

Improvescheduling efficiencyVSAvoidtransmission success rate

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The terminal device performs preliminary determination of whether an uplink transmission failure condition is met by comparing the uplink transmission time offset with the timing advance value before actual transmission. This allows the device to proactively identify scheduling conflicts and report them to the network device, preventing transmission failures before they occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The terminal device provides feedback to the network device by reporting the uplink transmission failure condition when the time offset is insufficient. This feedback mechanism enables the network device to adjust scheduling parameters and avoid assigning conflicting transmission timings, thereby resolving the contradiction between scheduling flexibility and transmission reliability.

Inventive Principle:

Principle #23Feedback

3Duration of action of stationary object

If uplink transmissions are continued without adjusting the time offset, then scheduling continuity is maintained, but resource waste and interference increase due to repeated transmission failures

Engineering Contradiction:

Improvescheduling continuityVSAvoidresource waste

Core Design Contradiction:

Duration of action of stationary objectVSLoss of energy

Solution Approach 1:

The terminal device provides feedback to the network device by reporting the uplink transmission failure condition when the time offset is insufficient. This feedback mechanism enables the network device to adjust scheduling parameters and avoid assigning conflicting transmission timings, thereby resolving the contradiction between scheduling flexibility and transmission reliability.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The network device takes preliminary anti-action by adjusting or canceling uplink scheduling when it receives a failure condition report. This prevents repeated transmission failures and associated resource waste while maintaining overall scheduling continuity through proactive parameter adjustment.

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS20250287330A1Devices, methods, apparatuses, and computer readable media for processing uplink transmission failure

Publication Date: 2025.09.11 ALCATEL LUCENT SHANGHAI BELL CO LTD

AI summary

Disclosed are devices, methods, apparatuses, and computer readable media for processing uplink transmission failure. An example terminal device may include at least one processor and at least one memory. The at least one memory may include computer program code, and the at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to perform: determining whether to transmit a message indicating an uplink transmission failure based on a condition relating to at least an uplink transmission time offset for scheduled uplink transmissions and a timing advance value for the scheduled uplink transmissions; and transmitting to a network device, the message, in a case where the condition is satisfied.