Resource Block Segmentation for MTC Control Information Detection

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Solution Overview

Problem

In Machine Type Communication (MTC) systems, user equipment (UE) currently requires significant power overheads to detect and receive control information as it needs to read all resource blocks to determine scheduling information, leading to high power consumption and inefficient resource allocation.

Innovation Solution

A method where the base station selects a target resource block subset corresponding to the target coverage level, allowing the user equipment to detect only the scheduled resource block, reducing the need to read all resource blocks and thereby minimizing power overheads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If user equipment reads all resource blocks to detect scheduling information, then detection reliability is improved, but power consumption increases

Engineering Contradiction:
Improvedetection reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent divides the resource blocks into multiple groups and assigns each user equipment to monitor only specific groups based on their monitoring identity. This segmentation allows UE to detect scheduling information in fewer resource blocks while maintaining reliability through targeted monitoring of relevant segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements differential monitoring where different user equipment monitor different subsets of resource blocks based on their identities. Each UE receives customized quality of service by monitoring only the local subset of resource blocks relevant to it, rather than all resource blocks uniformly.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If user equipment monitors all resource blocks, then scheduling information detection accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidmonitoring complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments resource blocks into multiple groups and assigns specific groups to each user equipment based on monitoring identities. This reduces the monitoring burden on individual devices while maintaining detection accuracy through targeted monitoring of assigned segments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the monitoring parameters by introducing monitoring identity-based filtering. Each UE changes its monitoring behavior to focus only on resource blocks where the monitoring identity matches, thereby reducing complexity while preserving detection accuracy for relevant scheduling information.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If all user equipment monitors the same resource blocks, then system simplicity is maintained, but resource allocation efficiency decreases

Engineering Contradiction:
Improvesystem simplicityVSAvoidresource allocation efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements local quality by assigning different monitoring subsets to different user equipment based on their identities. This allows the system to maintain relative simplicity through standardized procedures while achieving improved resource allocation efficiency through differentiated monitoring assignments.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent introduces parameter changes by assigning different monitoring identity parameters to different user equipment. This enables the system to efficiently allocate monitoring resources by matching UE monitoring assignments with their specific service requirements and scheduled resource blocks.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3297352B1Control information sending method and detection method, base station and user equipment
Publication Date: 2023.08.23 HUAWEI TECH CO LTD

AI summary

Embodiments of the present invention disclose a control information sending method, a control information detection method, a base station, and user equipment. The control information sending method in the embodiments of the present invention includes: determining, by a base station, target control information and characteristic information corresponding to the target control information, where the target control information is information about scheduling target user equipment by the base station; determining, according to a preset rule and the characteristic information from a resource block set corresponding to a target coverage level, a target resource block subset corresponding to the target control information, and selecting, from the target resource block subset, any available resource block as a target resource block; and sending the target control information by using the target resource block. In the embodiments of the present invention, when control information is being sent to user equipment, power overheads required by the user equipment for detecting and receiving the control information are reduced.