Multi-Component Carrier Resource Activation via Single Downlink Control Message
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently managing resources across multiple component carriers due to limited bandwidth, leading to increased communication delays and latency, particularly when control signaling occupies resources that could be used for other communications.
Innovation Solution
The described techniques involve a base station transmitting configuration messages to user equipment (UE) to activate or deactivate sets of resources across multiple component carriers using a single downlink control message, allowing for efficient resource management and reducing overhead by associating resource configurations with codepoints or field values in downlink control messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control signaling is transmitted frequently to manage resources across multiple component carriers, then resource management capability is improved, but communication delays and latency increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring resource sets and their associations with codepoints before actual resource activation is needed. The base station pre-establishes multiple resource sets with different codepoints, so when resource management is needed, the UE can quickly activate pre-configured resources without waiting for detailed configuration messages, thereby reducing communication delays while maintaining resource management capability.
2Manufacturing precision
If multiple separate downlink control messages are used to activate each resource set, then resource configuration precision is improved, but control channel resource availability deteriorates
Solution Approach 1:
The patent merges multiple resource configuration operations into a single downlink control message. Instead of sending separate messages for each resource set activation, the base station includes multiple codepoints in one message, each corresponding to a different resource set. This single message achieves the same configuration precision as multiple separate messages while consuming fewer control channel resources and improving resource availability.
3Reliability
If comprehensive resource configuration is provided for all component carriers, then communication reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic resource activation where resource sets are configured but not necessarily activated simultaneously across all component carriers. The base station can dynamically select which resource sets to activate based on current communication needs, and the UE activates only the necessary resources indicated by the received codepoints. This dynamic approach maintains communication reliability by having comprehensive configurations available while improving resource utilization efficiency by activating only what is needed at each moment.
Data Source
AI summary
Techniques and devices for wireless communications are described to support communication over multiple component carriers using configured resources. A base station may identify a resource configuration for one or more sets of configured resources for communication with a user equipment (UE) and may indicate the resource configuration to the UE. The base station may transmit a downlink control message to the UE that includes a field to indicate one or more sets of resources that are to be activated or deactivated. The UE may receive the downlink control message and, based on the downlink control message, may identify the one or more indicated sets of resources. The UE may determine, based on the downlink control message, whether the one or more sets of resources is activated or deactivated. The UE and the base station may communicate based on the one or more activated or deactivated sets of resources.