User Terminal Multi-Slot Resource Allocation Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In next-generation mobile communication systems, particularly in 5G and beyond, the user terminal faces challenges in appropriately controlling multi-segment transmission and reception due to the allocation of time domain resources across slot boundaries, which is not adequately managed by existing control mechanisms.
Innovation Solution
A user terminal is equipped with a receiving section to identify reference timing or start symbols and a control section that determines time domain resources across multiple slots based on these symbols and the number of consecutive symbols, allowing for precise allocation and management of resources for both uplink and downlink shared channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time domain resource is allocated across slot boundary (multi-segment transmission), then resource allocation flexibility is improved, but control mechanism reliability deteriorates
Solution Approach 1:
The patent divides the time domain resource allocation into multiple segments that can span across slot boundaries. The transmission occasion is segmented into multiple segments, each with its own time domain resource allocation, allowing flexible allocation across slots while maintaining separate control for each segment to ensure reliability.
Solution Approach 2:
The patent introduces a new dimension of control by adding segment-level time domain resource allocation parameters alongside the existing slot-level control. This multi-dimensional control structure allows resources to be allocated flexibly across slot boundaries while maintaining reliable control through multiple layers of parameter management.
2Device complexity
If control is performed based on single-slot time domain resource allocation premise, then control simplicity is improved, but multi-segment transmission capability deteriorates
Solution Approach 1:
The patent makes the time domain resource allocation dynamic by allowing the allocation to change based on whether it stays within a single slot or spans multiple slots. The control mechanism adapts its behavior based on the allocation pattern, maintaining simplicity for single-slot cases while enabling multi-segment capability when needed.
Solution Approach 2:
The patent creates a universal control mechanism that can handle both single-slot and multi-slot time domain resource allocation through the same DCI structure. The control simplicity is maintained by using a unified parameter set that serves multiple functions: it works for both intra-slot and inter-slot allocations, eliminating the need for separate control mechanisms.
3Measurement precision
If time domain resource is allocated within single slot, then control precision is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent segments the time domain resources into multiple transmission occasions that can be distributed across slot boundaries. This segmentation allows precise control within each segment while improving overall resource utilization by spanning multiple slots, resolving the contradiction between control precision and resource efficiency.
Solution Approach 2:
The patent performs preliminary allocation of time domain resources across multiple slots before transmission begins. By pre-configuring the multi-segment allocation pattern, the system maintains precise control over each segment's timing while maximizing resource utilization across the entire multi-slot period.
Data Source
AI summary
A user terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to a timing being used as a reference of a start symbol of an uplink shared channel or a downlink shared channel in a given transmission occasion; and a control section that determines a time domain resource over one or more slots allocated to the uplink shared channel or the downlink shared channel, based on the start symbol determined with the timing being used as the reference and a number of consecutive symbols from the start symbol.