Reduced Capability UE Bandwidth Allocation via Threshold Segmentation
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently allocating resources for enhanced RedCap UE with narrow bandwidth, particularly in meeting the requirements of mid-range Internet of Things (IoT) devices for low cost, complexity, coverage enhancement, power saving, and limited antenna configurations.
Innovation Solution
The proposed solution involves an information transmission method where a base station receives bandwidth capability information from a first type of reduced capability UE, indicating its bandwidth processing capabilities. Based on this information, the base station configures the transmission resources, ensuring that the maximum bandwidth allocated to data channels, control channels, reference signals, and synchronization signals does not exceed specific thresholds, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bandwidth processing capability of reduced capability UE is reduced to meet cost and complexity requirements, then the device complexity and cost are reduced, but the bandwidth allocated to data channels and other signals is limited
Solution Approach 1:
The patent segments the bandwidth into different categories with specific thresholds: first bandwidth threshold for data channels, second bandwidth threshold for control channels, third bandwidth threshold for reference signals, and fourth bandwidth threshold for synchronization signals. This segmentation allows the system to allocate bandwidth resources according to different functional requirements while respecting the reduced capability constraints of the UE.
Solution Approach 2:
The patent introduces multiple bandwidth thresholds (first, second, third, and fourth bandwidth thresholds) that define different bandwidth processing capabilities. By changing these parameter thresholds, the system can adapt to different UE capabilities and allocate resources accordingly, enabling flexible resource management for reduced capability devices.
2Use of energy by moving object
If the bandwidth allocated to data channels is reduced for first type reduced capability UE, then the power consumption is reduced, but the data processing capability is limited
Solution Approach 1:
The patent applies partial action by allocating only the necessary bandwidth to data channels based on the UE's capability type. For first type reduced capability UE, the bandwidth is limited to the first bandwidth threshold, which is sufficient for basic data processing requirements but not excessive. This partial allocation reduces power consumption while maintaining adequate data processing capability for the intended application.
3Adaptability or versatility
If multiple bandwidth processing capabilities are defined for different UE types, then the resource allocation flexibility is improved, but the system complexity increases
Solution Approach 1:
The patent creates a universal resource allocation framework that can handle multiple UE types (first type reduced capability UE with lower bandwidth capability and second type reduced capability UE with higher bandwidth capability) through a single set of threshold-based rules. The base station uses the same evaluation process and allocation strategy for both UE types, just with different threshold values, thereby achieving multi-functionality without proportionally increasing system complexity.
Data Source
AI summary
A method, apparatus and computer readable medium for information transmission in a wireless communication system. The information is transmitted by: receiving bandwidth capability information reported by a first type of reduced capability user equipment (UE), where the bandwidth capability information is configured to indicate at least a first bandwidth processing capability of the first type of reduced capability UE, the first bandwidth processing capability is less than or equal to a first bandwidth threshold, the first bandwidth threshold is less than a second bandwidth threshold supported by a second type of reduced capability UE, and the first bandwidth processing capability is configured to determine a maximum bandwidth allocated, by the first type of reduced capability UE, to a data channel.