NTN Resource Allocation Using UE RB Capability Signaling
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Solution Overview
Problem
Ensuring compliance with regulatory constraints in satellite frequency bands for non-terrestrial network (NTN) communications is a complex and resource-intensive process due to the need to test all possible combinations of channel parameters, which is time-consuming and inefficient.
Innovation Solution
A framework is introduced where UEs report their supported RB allocation sizes and modulation schemes via RRC signaling, allowing networks to schedule NTN communications based on these capabilities, thereby reducing the number of combinations to be tested for compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If exhaustive testing of all possible combinations of channel parameters is performed to ensure regulatory compliance, then compliance reliability is improved, but testing time and resource consumption increase significantly
Solution Approach 1:
The patent changes the approach from testing all possible parameter combinations to testing a reduced set of representative parameters. By identifying and testing only the most critical parameter combinations (e.g., specific RB allocation sizes and modulation schemes), the system achieves compliance verification without exhaustive testing, thus reducing time while maintaining reliability
Solution Approach 2:
The patent creates a simplified model of compliance testing that captures the essential regulatory requirements without replicating all possible scenarios. By using representative sample cases that mirror real-world deployment conditions, the system verifies compliance through a subset of tests rather than complete enumeration
2Reliability
If exhaustive testing of all possible combinations of channel parameters is performed to ensure regulatory compliance, then compliance reliability is improved, but testing resource consumption increases significantly
Solution Approach 1:
The patent transforms the testing scope from comprehensive to selective by changing which parameters are actually tested. By focusing on a limited set of critical parameters (such as specific RB allocation sizes and modulation schemes) that represent the most challenging compliance scenarios, the system reduces resource consumption while maintaining sufficient verification coverage
Solution Approach 2:
The patent extracts only the essential testing requirements from the full set of possible parameter combinations. By identifying and isolating the most critical compliance scenarios, the system separates the necessary testing workload from unnecessary testing, thereby reducing resource consumption while preserving compliance reliability
3Productivity
If capability information indicating supported RB allocation sizes is signaled via RRC signaling, then scheduling efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent optimizes the capability indication by changing from detailed parameter listings to a compressed representation using RB allocation size indices. Instead of signaling all possible RB allocation combinations, the system uses a compact index structure that maps to predefined allocation sizes, significantly reducing signaling overhead while maintaining scheduling efficiency
Solution Approach 2:
The patent creates a universal capability indication mechanism that serves multiple purposes: it conveys RB allocation capabilities, implies supported modulation schemes, and enables efficient scheduling. This multi-functional approach eliminates the need for separate signaling for each parameter, reducing overall overhead
Data Source
AI summary
Disclosed herein are methods, systems, and devices configured to perform operations including: transmitting capability information that indicates a number of resources blocks (RBs) that a user equipment (UE) supports for non-terrestrial network (NTN) communications in a satellite frequency band; receiving, in accordance with the capability information, scheduling information that allocates one or more RBs in the satellite frequency band for NTN communications between the UE and a network entity; and performing, in accordance with the scheduling information, the NTN communications using the one or more allocated RBs in the satellite frequency band. In some examples, the capability information indicates (i) a number of RBs supported by the UE for NTN communications in the satellite frequency band or (ii) a modulation and coding scheme (MCS) that can be used for the NTN communications in the satellite frequency band.