Configured Grant Group Mapping to Reduce 5G Signaling Overhead

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Solution Overview

Problem

The existing 5G mobile communications systems face increased signaling overheads and power consumption due to the need for extensive activation and deactivation signaling of configured grant configurations for terminals, particularly in scenarios requiring high reliability and low latency.

Innovation Solution

A method for configured grant configuration that involves obtaining a mapping relationship between multiple configured grant configuration sets and indexes, and using downlink control information (DCI) to activate or deactivate specific configurations based on this mapping, reducing the need for extensive signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the network configures a plurality of configured grant configurations for the terminal, then the system can support multiple services and scenarios, but the signaling overhead increases and terminal power consumption increases

Engineering Contradiction:
Improveservice support capabilityVSAvoidsignaling overhead
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent merges multiple configured grant configurations into groups where a single DCI can activate or deactivate multiple configurations simultaneously. This is achieved by establishing a mapping relationship between DCI indicators and groups of configured grant configurations, allowing one signaling message to control multiple configurations that share common parameters such as time domain resources, frequency domain resources, and modulation and coding schemes.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a universal activation mechanism where a single DCI format can serve multiple configured grant configurations through a mapping relationship. The DCI includes an indicator field that can point to different groups of configurations based on pre-established mapping rules, enabling one signaling structure to perform multiple activation functions across different service types and scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the network configures a plurality of configured grant configurations for the terminal, then the system can support multiple services and scenarios, but the terminal power consumption increases

Engineering Contradiction:
Improveservice support capabilityVSAvoidterminal power consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple configuration activations into a single terminal operation. When the terminal receives a DCI indicating a group of configured grant configurations, it activates all configurations in that group simultaneously through one processing operation rather than handling each configuration separately, thereby reducing the computational burden and power consumption associated with configuration management.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent performs preliminary grouping and mapping configuration before actual service activation. The network pre-establishes the mapping relationship between DCI indicators and groups of configured grant configurations, and pre-organizes configurations into groups with common parameters. This preliminary organization reduces the real-time processing requirements at the terminal when activations occur, lowering instantaneous power consumption during service deployment.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If extensive activation and deactivation signaling is used for configured grant configurations, then precise control over each configuration is achieved, but signaling overhead increases

Engineering Contradiction:
Improveconfiguration control precisionVSAvoidsignaling overhead
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent segments configured grant configurations into logical groups based on parameter similarities and service requirements. Each group can be independently activated or deactivated as a unit through DCI signaling. This segmentation maintains operational control precision by allowing selective activation of specific configuration groups while reducing signaling overhead compared to individual configuration control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies partial action by activating or deactivating groups of configurations rather than requiring individual control of each configuration. This approach provides sufficient control precision for most scenarios where configurations with similar parameters can be managed together, while avoiding the excessive signaling required for complete individual control of every configuration parameter.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS12376130B2Method for configured grant configuration, terminal, and network-side device
Publication Date: 2025.07.29 VIVO MOBILE COMM CO LTD
  • US12376130B2 patent drawing
  • US12376130B2 patent drawing
  • US12376130B2 patent drawing

AI summary

A method for configured grant configuration, a terminal, and a network-side device are provided. The method includes: receiving radio resource control (RRC) signalling transmitted by a network-side device, where the RRC signalling is used to configure a mapping relationship between a plurality of configured grant configuration sets and a plurality of indexes; receiving downlink control information (DCI) and determining, based on the mapping relationship, a configured grant configuration set corresponding to a target index that is indicated by the DCI; and deactivating configured grant configurations included in the configured grant configuration set that is determined.