RedCap UE Capability Filtering for Lower Processing Overhead
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Solution Overview
Problem
Existing wireless communication standards require RedCap UEs to perform unnecessary and resource-consuming UE capability filtering operations due to their lack of support for Carrier Aggregation (CA) and Dual Connectivity (DC), leading to increased processing overhead.
Innovation Solution
Making the frequencyBandListFilter parameter in UECapabilityEnquiry optional for RedCap UEs, allowing them to ignore or selectively report frequency bands based on their capabilities, and introducing new UE capability parameters to indicate filtering support or ignore network indications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RedCap UEs perform UE capability filtering operations as required by existing standards, then the capability reporting is complete and accurate, but the processing overhead and complexity increase unnecessarily
Solution Approach 1:
The patent extracts and removes the frequencyBandListFilter parameter from the UECapabilityEnquiry message when communicating with RedCap UEs. This extraction eliminates the unnecessary filtering operation requirement for RedCap UEs, reducing their processing overhead while maintaining accurate capability reporting by relying on the UE's inherent capability information
Solution Approach 2:
The patent applies different capability enquiry approaches for different UE types. For RedCap UEs specifically, the network uses a simplified approach without frequencyBandListFilter, while other UE types continue to use the standard filtering approach. This local differentiation optimizes processing for each UE category based on their specific capabilities
2Loss of information
If the frequencyBandListFilter parameter is always included in UECapabilityEnquiry, then the network can obtain filtered capability information, but RedCap UEs incur unnecessary processing overhead
Solution Approach 1:
The patent removes the frequencyBandListFilter parameter from the UECapabilityEnquiry message for RedCap UEs, extracting only the essential capability information exchange. This eliminates unnecessary filtering operations that would consume processing energy, while the UE still provides complete capability information through its standard capability reporting mechanisms
3Adaptability or versatility
If RedCap UEs support CA and DC features, then they can use frequencyBandListFilter for capability filtering, but RedCap UEs lack support for these features making the filtering operation unnecessary
Solution Approach 1:
The patent extracts and removes the frequencyBandListFilter parameter from capability enquiries directed at RedCap UEs. Since RedCap UEs do not support CA and DC features, the filtering operation based on frequency bands becomes unnecessary. This extraction simplifies the capability exchange process for RedCap UEs while maintaining full adaptability for other UE types that do support these features
Data Source
AI summary
A method for wireless communication includes receiving, by a communication device, a first signal containing an indication of a first group of frequency bands available for communication from a network device; and transmitting, by the communication device, a list of a second group of frequency bands supported by the communication device, wherein the list of the second group of frequency bands is determined independent of the indication of first group of frequency bands.