Paging Early Indication for TRS Unavailability in RedCap Devices

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Solution Overview

Problem

Existing wireless communication systems face challenges in handling tracking reference signal unavailability due to skipping monitoring, particularly in scenarios involving reduced capability (RedCap) wireless devices, leading to inefficiencies in paging and beam management processes.

Innovation Solution

Implementing mechanisms for enhanced paging early indication (PEI) and beam management strategies that include TRS availability indications to ensure reliable communication with RedCap devices, even in conditions of tracking reference signal unavailability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If tracking reference signal monitoring is skipped to reduce power consumption and simplify operations for RedCap devices, then energy efficiency and ease of operation improve, but communication reliability deteriorates due to TRS unavailability

Engineering Contradiction:

Improvepower consumptionVSAvoidcommunication reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The network side performs preliminary actions by transmitting PEI and TRS availability indications before the actual paging or data transmission. This allows the RedCap device to be informed in advance about the availability of tracking reference signals, enabling it to prepare appropriate reception strategies without continuously monitoring TRS, thus reducing power consumption while maintaining reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces PEI (Paging Early Indication) and TRS availability indications as intermediary signals between the network and RedCap devices. These intermediaries carry critical information about TRS availability, allowing the device to make informed decisions about signal reception without direct continuous monitoring, thereby resolving the contradiction between power savings and communication reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If continuous tracking reference signal monitoring is implemented to ensure communication reliability, then reliability improves, but power consumption increases and operational complexity increases for RedCap devices

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous monitoring, the system employs periodic action through PEI transmissions and TRS availability indications. The network periodically provides updates about TRS availability, and the RedCap device adjusts its monitoring behavior accordingly, achieving reliable communication while significantly reducing power consumption compared to continuous monitoring.

Inventive Principle:

Principle #19Periodic action

3Ease of operation

If tracking reference signal monitoring is skipped for reduced capability devices, then ease of operation improves, but beam management efficiency deteriorates due to lack of TRS availability information

Engineering Contradiction:

Improveoperational simplicityVSAvoidbeam management efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The system implements feedback mechanisms where the network provides TRS availability indications to RedCap devices. This feedback loop enables the device to operate simply without continuous monitoring while the network maintains beam management efficiency by controlling and informing about TRS availability based on current channel conditions and beam states.

Inventive Principle:

Principle #23Feedback

4Reliability

If PEI and TRS availability indications are implemented to maintain reliability during skipping monitoring, then communication reliability improves, but system complexity increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The PEI mechanism serves multiple functions simultaneously: it provides paging early indication, conveys TRS availability information, and enables the device to adjust its reception behavior. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in system complexity while achieving improved communication reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260019993A1Handling tracking reference signal unavailability due to skipping monitoring

Publication Date: 2026.01.15 OFINNO LLC

AI summary

A wireless device can include one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to perform a process. The process can include, in one example, receiving configuration parameters indicating monitoring occasions for a first downlink control information (DCI). The first DCI can include a paging early indication (PEI) indicating whether to monitor paging occasions for receiving a second DCI scheduling a paging message and can include a tracking reference signal (TRS) availability indication indicating whether a TRS is available. The process can also include skipping the monitoring occasions for the first DCI and, based on not detecting the first DCI due to the skipping of the monitoring occasions for the first DCI, determining that the TRS is unavailable. The process can additionally include monitoring the paging occasions for the second DCI.