Virtual Carrier Aggregation for Wireless System Efficiency
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Solution Overview
Problem
Current carrier aggregation designs in wireless communication systems are inefficient due to unnecessary transmission of synchronization signals, treatment of carriers as stand-alone entities, and fixed bandwidths that do not scale with evolving hardware capabilities, leading to inefficiencies in signaling, resource management, and increased power consumption.
Innovation Solution
The implementation of virtual carrier aggregation, where wide bandwidths are treated as a single carrier, allowing for efficient signaling, independent HARQ processes, energy-efficient transmission, and harmonized design for different RF capabilities, minimizing measurement gaps and optimizing resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional carrier aggregation is used to support wide bandwidth operation, then system capacity and data rate are improved, but signaling overhead and device complexity increase due to treatment of carriers as stand-alone entities with separate synchronization signals
Solution Approach 1:
The patent merges multiple component carriers into a single virtual carrier by combining their physical layer resources while maintaining logical independence. This reduces the number of separate synchronization signals and control channels needed, thereby decreasing signaling overhead and device complexity while preserving the aggregate bandwidth capacity for high data rates
2Reliability
If separate synchronization signals are transmitted for each carrier in carrier aggregation, then carrier independence and reliability are improved, but signaling overhead and power consumption increase
Solution Approach 1:
The patent extracts the essential synchronization and control functions from individual component carriers and consolidates them at the virtual carrier level. This allows component carriers to share common synchronization signals and control resources, reducing redundant transmissions and lowering power consumption while maintaining the reliability needed for independent carrier operation
3Stability of the object's composition
If fixed bandwidth allocations are used in carrier aggregation, then system stability and simplicity are improved, but adaptability to evolving hardware capabilities and dynamic traffic conditions deteriorates
Solution Approach 1:
The patent introduces dynamic bandwidth allocation mechanisms within the virtual carrier framework, allowing the system to adjust the aggregation of component carriers based on real-time traffic demands and hardware capabilities. This enables the system to maintain stability through a unified virtual carrier interface while adapting bandwidth utilization dynamically to optimize performance
Data Source
AI summary
Facilitating virtual carrier aggregation for wideband operation of wireless communication systems is provided herein. A system can comprise: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise: receiving, from a network device of network devices, downlink transmission data comprising downlink control information applicable to a downlink channel of the network device; as a function of the downlink transmission data, adjusting a subband of subbands resulting in an aggregation of multiple subbands; and transmitting uplink radio traffic data via the aggregation of multiple subbands to the network device.