Multi-Object DCI Scheduling to Reduce NR Control Overhead

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Solution Overview

Problem

In the New Radio (NR) system, the transmission of Downlink Control Information (DCI) requires significant overhead due to each piece scheduling a single target object, leading to inefficient communication.

Innovation Solution

A method and apparatus for a terminal to receive and determine feature information of multiple target objects scheduled by a single piece of DCI, reducing the need for individual DCI transmissions for each object.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If each piece of DCI schedules one target object, then the scheduling precision is improved, but the DCI transmission overhead increases

Engineering Contradiction:

Improvescheduling precisionVSAvoidDCI transmission overhead

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent merges multiple DCI messages into a single DCI that schedules multiple target objects. The network side device sends one DCI containing scheduling information for multiple target objects, and the terminal processes this single DCI to extract scheduling information for each target object, thereby reducing DCI transmission overhead while maintaining scheduling precision.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The DCI is designed with multi-functionality to serve multiple target objects simultaneously. The single DCI contains multiple information indication fields, each corresponding to different target objects, enabling the DCI to perform multiple scheduling functions in one message, thus reducing the total number of DCI transmissions required.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Quantity of substance

If one piece of DCI schedules multiple target objects, then the DCI transmission overhead is reduced, but the device complexity increases

Engineering Contradiction:

ImproveDCI transmission overheadVSAvoidterminal processing complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent segments the scheduling information within the single DCI into multiple distinct information indication fields, where each field corresponds to a specific target object. This segmentation allows the terminal to process the DCI by extracting and interpreting individual fields for each target object, making the processing more manageable despite the multi-object scheduling capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The network side device pre-configures and structures the DCI with multiple information indication fields in a standardized format before transmission. This preliminary structuring enables the terminal to process the scheduling information more efficiently by following predefined parsing rules, thereby reducing the actual processing complexity at the terminal end.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260113758A1Information determining method, information sending method, terminal, and network side device

Publication Date: 2026.04.23 VIVO MOBILE COMM CO LTD

AI summary

This application provides an information determining method, an information sending method, a terminal, and a network side device. The information determining method includes: receiving first DCI, where the first DCI may schedule multiple target objects, and determining feature information of at least some of information indication fields in the first DCI.