PDSCH Scheduling for Reduced-Capability UE Data Rate Limits
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Solution Overview
Problem
Existing 5G NR systems face challenges in supporting reduced capability terminal devices, requiring improved flexibility in scheduling and processing data rates to enhance system performance and reduce hardware complexity.
Innovation Solution
A method for wireless communication systems that involves determining whether to process PDSCH or PUSCH based on configurable reference data rates and transmission bandwidth conditions, allowing reduced capability terminal devices to adapt their processing according to UE capability, thereby improving flexibility and spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional terminal devices are supported with full processing capability, then system performance is improved, but hardware complexity and cost increase for reduced capability devices
Solution Approach 1:
The patent implements dynamic data rate adaptation by allowing the network to configure different reference data rates (first and second reference data rates) based on UE capability information. Reduced capability terminal devices can dynamically adjust their processing requirements to match their hardware capabilities, while conventional devices can operate at higher rates, thus resolving the contradiction between system performance and device complexity
Solution Approach 2:
The patent changes the parameter of data rate processing by introducing capability-dependent reference data rates. The network configures different processing thresholds for different UE types, allowing reduced capability devices to process data at appropriate rates without requiring full-capability hardware, thereby reducing hardware complexity while maintaining overall system productivity
2Productivity
If reduced capability terminal devices process data at high data rates, then spectral efficiency is improved, but the devices cannot handle excessive data processing requirements
Solution Approach 1:
The patent applies local quality by tailoring the data rate processing requirements to each UE's specific capability. The network configures different reference data rates for different UE types, so that reduced capability devices are not required to process excessive data at high rates, while still achieving good spectral efficiency through optimized resource allocation appropriate to each device's capabilities
3Device complexity
If unified processing requirements are applied to all terminal devices, then system simplicity is improved, but adaptability to different device capabilities deteriorates
Solution Approach 1:
The patent achieves universality by creating a multi-functional processing framework that can accommodate both conventional and reduced capability terminal devices. The network configures different reference data rates based on UE capability, allowing the same system to adaptively serve diverse device types with different processing capabilities, thus maintaining system simplicity while improving adaptability
Data Source
AI summary
A first receiver receives a first signaling, the first signaling is used to schedule a first PDSCH; determines whether to process the first PDSCH according to a first condition set; when the first condition set is satisfied, processes the first PDSCH; when the first condition set is not satisfied, determines whether to process the first PDSCH by itself; wherein the first condition set comprises that an actual data rate is not greater than a target reference data rate; the actual data rate is related to a number of bit(s) in a bit block in the first PDSCH; when a second condition set is satisfied, the target reference data rate is a first reference data rate, and the first reference data rate is configurable or UE-capability related; when a second condition set is not satisfied, the target reference data rate is a second reference data rate.