Single DCI Message Activating Multiple Component Carrier Resources
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Solution Overview
Problem
Current wireless communication systems face increased control signaling overhead due to limitations in activating and releasing multiple sets of resources across multiple component carriers using downlink control information (DCI) messages.
Innovation Solution
The described techniques enable the activation and release of multiple sets of communication resources, such as semi-persistent scheduling (SPS) grants and configured grants (CGs), via a single DCI message across multiple component carriers, using a new data indicator (NDI) field and other field values like redundancy version (RV), modulation and coding scheme (MCS), and frequency domain resource assignment (FDRA) fields, allowing the user equipment (UE) to interpret these indications for resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple DCI messages are used to activate and release resources across multiple component carriers, then resource management flexibility is improved, but control signaling overhead increases
Solution Approach 1:
The patent combines multiple DCI messages into a single DCI message that can simultaneously activate and release resources across multiple component carriers. This merging approach reduces the total number of control messages transmitted while maintaining the ability to manage resources on multiple carriers, thereby reducing control signaling overhead without sacrificing resource management flexibility.
Solution Approach 2:
The patent creates a universal DCI message format that can perform multiple functions: activating resources on one or more component carriers, releasing resources on one or more component carriers, or both simultaneously. This multi-functional DCI message eliminates the need for separate dedicated messages for each resource management operation across different carriers.
2Quantity of substance
If a single DCI message activates multiple resource sets across multiple component carriers, then control signaling overhead is reduced, but message complexity increases
Solution Approach 1:
The patent segments the resource management functionality into distinct fields within the DCI message, including activation fields, release fields, and component carrier identification fields. Each field independently controls specific aspects of resource management, allowing the UE to parse and process only the relevant portions for its configured carriers, thereby managing complexity through structured organization.
Solution Approach 2:
The patent utilizes specific parameter values and field configurations within the DCI message to encode resource management instructions. By changing parameters such as activation indicators, release indicators, and component carrier identifiers, the single DCI message can convey multiple distinct commands without requiring separate messages, managing complexity through parameter encoding rather than message proliferation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a resource configuration for communications with a base station on a multiple sets of resources across multiple component carriers, the resource configuration including at least a first set of resources on a first component carrier and a second set of resources on a second component carrier. The UE may receive, from the base station, a downlink control information (DCI) message on the first component carrier, the DCI message including a DCI format that controls the multiple of sets of resources across the plurality of component carriers. The UE may determine that the first set of resources and the second set of resources are one of activated or released based on a first indication in the DCI message.