System Information Scheduling in One Time Window for Lower UE Energy

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Solution Overview

Problem

In 5G NR scenarios, the existing method of acquiring system information requires separate monitoring and receiving in multiple system information time windows, which is not energy-efficient for both network devices and user equipment.

Innovation Solution

A method where a network device sends downlink control information (DCI) within a single system information time window to schedule multiple system information blocks (SIBs), allowing user equipment to receive all necessary information within this window, thereby reducing the need for multiple operating states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate monitoring and receiving is performed in multiple system information time windows, then complete system information can be acquired, but energy consumption increases

Engineering Contradiction:

Improvesystem information acquisition completenessVSAvoiduser equipment energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges multiple system information time windows into a single unified time window, allowing the network device to send DCI scheduling multiple SIBs and the UE to receive all necessary system information within one monitoring period, thereby reducing the number of times the UE needs to wake up and monitor, which directly reduces energy consumption while ensuring complete system information acquisition

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If multiple system information time windows are used, then all system information blocks can be transmitted, but operating duration increases

Engineering Contradiction:

Improvesystem information transmission completenessVSAvoidoperating time duration

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent combines multiple separate time windows into one consolidated time window where all SIBs are transmitted together. The network device sends DCI that schedules multiple SIBs within this single time window, reducing the total operating duration while maintaining complete system information transmission coverage

Inventive Principle:

Principle #5Merging (Combining)

3Use of energy by moving object

If DCI schedules multiple SIBs in one time window, then energy consumption is reduced, but scheduling complexity increases

Engineering Contradiction:

Improvenetwork device energy consumptionVSAvoidscheduling complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The DCI message is designed to serve multiple functions simultaneously: it schedules multiple SIBs, indicates the time window information, and provides resource allocation for each SIB. This multi-functionality allows the network device to reduce energy consumption by using a single DCI transmission to achieve what would otherwise require multiple separate scheduling operations, thereby offsetting the increased scheduling complexity with operational efficiency

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260101356A1Method and device for transmitting system information, and readable storage medium

Publication Date: 2026.04.09 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method for sending system information (SI), including: sending, within one system information time window, a downlink control information (DCI) corresponding to a plurality of SI.