Carrier Aggregation Capability Signaling Optimization

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Solution Overview

Problem

The management of user equipment (UE) capability information in carrier aggregation (CA) systems is inefficient, leading to increased network overhead and storage requirements due to the need to transmit detailed CA combinations from multiple UEs to base stations, which can reduce network throughput.

Innovation Solution

An electronic device is equipped with communication circuitry and a processor that determines UE capability information based on default, regional, country, and frequency band-specific CA combinations, and transmits only the relevant information to the network, minimizing the data transmitted and reducing network load.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If detailed CA combination information is transmitted from multiple UEs to base stations, then the base station can perform CA-based scheduling, but the network overhead increases and throughput is reduced

Engineering Contradiction:

ImproveCA-based scheduling capabilityVSAvoidnetwork throughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent extracts only the essential CA capability information (supportable CA combination numbers) from the complete CA configuration details, transmitting only this condensed information to the base station. This extraction principle reduces the information volume significantly while retaining the core scheduling capability needed for CA operations.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the base station requesting detailed CA combination information from each UE, the patent inverts the approach by having UEs proactively report only their CA combination number capabilities. This reversal eliminates the need for extensive back-and-forth signaling and detailed information exchange.

Inventive Principle:

Principle #13The other way round (Inversion)

2Adaptability or versatility

If complete CA capability information is managed for multiple UEs, then scheduling flexibility is improved, but storage space requirements increase significantly

Engineering Contradiction:

Improvescheduling flexibilityVSAvoidstorage space

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent extracts only the critical CA capability parameter (number of supportable CA combinations) from the full CA configuration set, storing and transmitting only this essential information. This extraction maintains scheduling flexibility while dramatically reducing the storage burden at the base station.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the information parameter from detailed CA combination configurations to a simplified numeric representation (CA combination number capability). This parameter transformation reduces information complexity while preserving the essential scheduling decision-making capability.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If detailed UE capability information is transmitted from multiple UEs, then the base station can manage CA combinations effectively, but network overhead increases

Engineering Contradiction:

ImproveCA combination management accuracyVSAvoiddata transmission volume

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts the essential CA capability indicator (number of supportable CA combinations) from the complete UE capability information set, transmitting only this extracted metric to the base station. This ensures reliable CA combination management with minimal data transmission overhead.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent inverts the traditional information flow by having UEs report only their CA combination number capabilities rather than receiving detailed capability requests. This inversion reduces network overhead while maintaining management accuracy.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS10959228B2Method for transmitting carrier combination for carrier aggregation and electronic device therefor

Publication Date: 2021.03.23 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device including a communication circuitry, a processor, and a memory is provided. The processor of the electronic device receives a user equipment (UE) capability enquiry that includes information indicating the number of carrier aggregation (CA) combinations associated with a network from the network using the communication circuitry and determines UE capability information based on at least one of the number of default CA combinations of the electronic device, the number of CA combinations of a region associated with the network, the number of CA combinations of a country associated with the network, the number of CA combinations corresponding to a supported frequency band of a mobile network operator (MNO) associated with the network, and the number of CA combinations associated with the network.