UE Capability Enquiry Signaling for Extraterrestrial Base Stations
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Solution Overview
Problem
In satellite communication, the existing UE capability information messages sent to extraterrestrial base stations are often large and inefficient, leading to wasteful use of spectrum and increased risk of errors due to unnecessary data transmission, particularly when only specific capabilities are required for LTE operation.
Innovation Solution
Incorporating new signaling information elements in the UE capability enquiry message to instruct the UE to omit carrier aggregation combinations and only report capabilities relevant to the specified band, reducing the size of the UE capability information message and ensuring only pertinent information is sent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE transmits complete capability information messages, then the base station receives comprehensive capability data, but the message size increases leading to spectrum waste and higher error risk
Solution Approach 1:
The patent extracts and transmits only the specific capability information elements that are relevant to the detected RF band and base station configuration, rather than transmitting the complete capability information message. This selective extraction reduces message size and eliminates unnecessary data transmission.
Solution Approach 2:
The patent applies local quality by tailoring the capability information message to match the specific requirements of the detected base station. The UE determines which capability elements are relevant based on the RF band and base station configuration, providing locally optimized information rather than universal comprehensive data.
2Loss of information
If the UE transmits complete capability information messages, then all capability data is available, but spectrum efficiency decreases due to unnecessary data transmission
Solution Approach 1:
The patent extracts only the necessary capability information elements related to the detected RF band and base station configuration. This selective extraction maintains all information needed for proper network operation while eliminating redundant capability data that would consume spectrum resources.
Solution Approach 2:
The patent applies partial action by transmitting a subset of capability information that is sufficient for the specific communication scenario rather than the complete capability set. This partial transmission provides exactly what is needed without excess, optimizing spectrum utilization.
3Loss of information
If the UE transmits larger blocks of capability data, then comprehensive information is provided, but the risk of transmission errors increases
Solution Approach 1:
The patent extracts and transmits only the essential capability information elements required for the specific RF band and base station configuration. This selective approach provides sufficient information for network operation while reducing the total data block size, thereby lowering error probability.
Solution Approach 2:
The patent segments the capability information message into relevant and irrelevant portions based on the detected base station requirements. Only the relevant segmented portion is transmitted, reducing the overall message size and error risk while maintaining necessary information completeness.
Data Source
AI summary
Embodiments of the present disclosure are directed to systems and methods for limiting user equipment (UE) capability information messaging received by an extraterrestrial base station (EBS). One or more broadcast signals are transmitted from the EBS and detected by a UE. Upon detecting the broadcast signals, the UE requests to attach to the EBS. In aspects, the EBS will first authenticate the UE's identity. Then, a capability enquiry message is transmitted to the UE specifying what information the EBS would like (e.g. information limited to the one frequency band supported by the EBS). The UE then sends a UE capability information message comprising only the information requested from the EBS, thereby reducing the UE capability information transmitted between the UE and the EBS.