UE Power-Saving Mode Indication for Connected State Configuration

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Solution Overview

Problem

Current wireless communication systems fail to effectively conserve battery resources for user equipment (UE) in power-saving mode, as base stations configure UEs with settings that do not account for power-saving indications, leading to increased power consumption.

Innovation Solution

A method where user equipment (UE) transmits a message indicating its power-saving mode to the base station, allowing the base station to determine and configure a connected state with relaxed parameters such as reduced DRX cycles, measurement reporting, and data rate, enabling the UE to operate efficiently in power-saving mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If base stations configure UEs with standard connected state settings, then network performance and data rate are maintained, but power consumption increases for UEs in power-saving mode

Engineering Contradiction:

Improvepower consumptionVSAvoiddata rate

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent implements dynamic configuration where the base station adjusts connected state parameters based on the UE's power-saving mode indication. The configuration is no longer static but adapts to the UE's power state, allowing the system to optimize between power consumption and data rate based on real-time conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes key configuration parameters including DRX cycle length, measurement reporting frequency, and data rate when the UE indicates power-saving mode. These parameter adjustments directly reduce power consumption while maintaining acceptable network performance.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If base stations use standard configuration for connected UEs, then measurement reporting accuracy is maintained, but power consumption increases

Engineering Contradiction:

Improvepower consumptionVSAvoidmeasurement reporting

Core Design Contradiction:

Use of energy by moving objectVSMeasurement precision

Solution Approach 1:

The patent applies partial action by reducing the frequency of measurement reporting for UEs in power-saving mode. Instead of requiring full measurement reporting at standard intervals, the system accepts reduced reporting frequency, which sufficiently maintains network awareness while significantly reducing power consumption.

Inventive Principle:

Principle #16Partial or excessive action

3Speed

If base stations configure frequent DRX cycles, then network responsiveness is improved, but power consumption increases for power-saving UEs

Engineering Contradiction:

Improvenetwork responsivenessVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent modifies the periodic DRX cycle configuration for UEs in power-saving mode, extending the cycle length between wake-up periods. This allows the UE to remain in low-power state longer while still maintaining periodic network responsiveness, balancing both requirements.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS11589303B2Power-saving mode indication

Publication Date: 2023.02.21 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a message including an indication that the UE is in a power-saving mode. The UE may receive a configuration, for a connected state of the UE, that is based at least in part on the indication. The UE may operate in the connected state according to the configuration. Numerous other aspects are provided.