Carrier Aggregation RF Capability Reporting Signaling Overhead
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Solution Overview
Problem
In communication systems employing carrier aggregation, the existing methods for reporting RF capability by user equipment (UE) result in significant signaling overhead due to the need to report extensive information about supported and unsupported frequency bands.
Innovation Solution
A method and system that identify and send specific combinations of frequency bands that support or do not support carrier aggregation, rather than the complete set of supported frequency bands, thereby reducing redundant reporting and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the UE reports complete sets of identifiers of frequency bands supported by the UE, then the reporting is comprehensive, but the signaling overhead increases
Solution Approach 1:
The patent extracts only the essential information needed for carrier aggregation capability reporting. Instead of reporting all supported frequency bands, the UE identifies and reports specifically the combinations of frequency bands that support carrier aggregation, along with identifiers of frequency bands that do not support carrier aggregation. This extraction of necessary information reduces signaling overhead while maintaining completeness of CA capability reporting.
Solution Approach 2:
The patent segments the RF capability reporting into distinct parts: (1) combinations of frequency band identifiers that support carrier aggregation, and (2) identifiers of frequency bands that do not support carrier aggregation. This segmentation allows the UE to report only relevant information for carrier aggregation operations, avoiding redundant reporting of all supported frequency bands and reducing overall signaling overhead.
2Measurement precision
If the UE reports detailed information about each frequency band's carrier aggregation support, then the carrier aggregation capability is accurately represented, but the signaling overhead increases
Solution Approach 1:
The patent extracts precisely the information needed to represent carrier aggregation capability accurately. The UE identifies specific combinations of frequency band identifiers that support carrier aggregation and reports these combinations along with identifiers of frequency bands that do not support carrier aggregation. This extracted information provides accurate CA capability representation without the overhead of reporting complete frequency band support details.
Solution Approach 2:
The patent segments the capability reporting into two distinct sets: combinations of frequency bands supporting carrier aggregation, and identifiers of frequency bands not supporting carrier aggregation. This segmentation enables accurate representation of carrier aggregation capabilities by clearly distinguishing between bands that support CA and those that do not, while minimizing the amount of signaling data required.
Data Source
AI summary
Embodiments of the present invention provide a method, a device and a system for reporting RF capability in carrier aggregation, used to reduce signaling overhead when a UE reports information. The method provided in the embodiments of the present invention includes: identifying a combination of identifiers of frequency bands that support the carrier aggregation, and generating a set of combinations of identifiers of frequency bands that support the carrier aggregation; identifying identifiers of frequency bands that do not support the carrier aggregation, and generating a set of identifiers of frequency bands that do not support the carrier aggregation; and sending the set of combinations of identifiers of frequency bands that support the carrier aggregation and the set of identifiers of frequency bands that do not support the carrier aggregation.