Carrier Aggregation Capability Framework for 5G UE Processing
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR and LTE, face challenges in efficiently managing carrier aggregation configurations and processing capabilities of user equipment (UE) when handling multiple component carriers and transmission-reception points, leading to potential overload and reduced performance due to limited processing resources.
Innovation Solution
The system allows user equipment (UE) to signal its carrier aggregation capabilities to the base station, enabling the determination of a suitable carrier aggregation configuration that balances processing demands, allowing for the prioritization and dropping of transmissions to ensure high-priority traffic is processed effectively, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation configuration is increased to handle more component carriers and transmission-reception points, then network capacity and data throughput are improved, but processing resources of user equipment become overloaded
Solution Approach 1:
The patent segments the carrier aggregation configuration by introducing separate operation types (in-order operations, out-of-order operations, priority level processing) for different component carriers. This allows the UE to handle multiple carriers with different processing requirements, improving network capacity without uniformly increasing processing complexity across all carriers.
Solution Approach 2:
The patent enables dynamic capability signaling where the UE can indicate its processing capabilities for different operation types on different component carriers. The network can then dynamically adjust the carrier aggregation configuration based on these capability indications, allowing flexible adaptation to changing network conditions and UE capabilities.
2Adaptability or versatility
If multiple separate operations are performed concurrently on multiple component carriers, then processing flexibility and network performance are improved, but processing capability requirements increase
Solution Approach 1:
The patent applies different processing operations to different component carriers based on local requirements. Specifically, some carriers can be configured for in-order operations while others use out-of-order operations, and priority levels can be assigned differently to different carriers. This localized differentiation improves overall system flexibility without requiring all carriers to support all operation types simultaneously.
3Productivity
If carrier aggregation configuration exceeds processing capability, then network throughput is improved, but transmission reliability decreases due to packet loss
Solution Approach 1:
The patent implements a feedback mechanism where the UE signals its processing capabilities for different operation types to the network. Based on this feedback, the network configures the carrier aggregation appropriately to match UE capabilities, ensuring that the configuration does not exceed processing capacity and thereby maintaining transmission reliability while still achieving high throughput.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for indicating carrier aggregation capabilities. An example method generally includes signaling, to a base station (BS), carrier aggregation capability information indicating a capability for performing separate operations concurrently on a plurality of component carriers; receiving a carrier aggregation configuration indicating component carriers designated for the separate operations; and receiving or transmitting transmissions based on the carrier aggregation configuration.