Terminal DCI Priority Selection for Overlapping Channel Allocations
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Solution Overview
Problem
Existing radio communication systems struggle to effectively determine priority between channels with overlapping resource allocations for services with different requirements, such as eMBB and URLLC, due to issues with determining channel priority based on reception order, CORESET configuration, and transmission beamforming, leading to potential delays and miscommunication.
Innovation Solution
A terminal and communication method that determines channel priority based on priority indications within DCIs, and selects one of two methods for determining priority: based on reception order or priority indications, depending on whether CORESETs or search spaces overlap in time domain, ensuring appropriate radio communication processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If channel priority is determined based on reception order of control information, then the determination process is simple, but it causes delays and miscommunication when channels with different service requirements overlap
Solution Approach 1:
The patent changes the determination parameter from reception order to priority indications embedded in DCIs. When CORESETs or search spaces overlap in time domain, the system uses priority indications (first value or second value) within the DCIs themselves to determine channel priority, rather than relying on reception order. This parameter change resolves the contradiction by providing accurate priority information directly in the control information, eliminating delays and miscommunication while maintaining a straightforward determination process.
2Measurement precision
If channel priority is determined based on CORESET configuration, then resource allocation accuracy is improved, but complexity increases due to multiple determination methods
Solution Approach 1:
The patent implements a dynamic priority determination system that automatically selects the appropriate determination method based on the operational context. When CORESETs or search spaces overlap in time domain, the system dynamically switches to using priority indications in DCIs. When they do not overlap, it uses reception order. This dynamic adaptation resolves the contradiction by providing accurate resource allocation only when needed (overlapping cases) while keeping the system simple in non-overlapping scenarios.
Data Source
AI summary
The objective of the present invention is to implement appropriate radio communication processing in accordance with required criteria. This terminal is provided with: a control circuit which determines a method for determining a priority level of a first channel and a second channel having mutually overlapping resource allocations in the time domain, on the basis of a parameter relating to control information indicating the allocations of the first channel and the second channel respectively; and a communication circuit for transmitting or receiving a signal to or from at least one of the first channel and the second channel, on the basis of the priority level.