Inter-UE Coordination Message Time Resource Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current SL communication systems face challenges in efficiently defining, transmitting, and receiving inter-UE coordination messages, particularly in dynamically allocating and indicating time resources for inter-UE coordination.
Innovation Solution
A method where slots in an input slot offset set are dynamically mapped to multiple time resource indication values, with a reference time reset for each time resource indication value, allowing for flexible and efficient time resource indication in inter-UE coordination messages. This involves determining inter-UE coordination messages with type-1 and type-2 time resource indication values, which can indicate different numbers of slot offsets based on whether the total number of slots is even or odd.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed time resource indication methods are used in inter-UE coordination messages, then the message structure is simple, but the flexibility and efficiency of time resource allocation is poor
Solution Approach 1:
The time resource indication is segmented into two distinct types: type-1 TRIVs that indicate single slot offsets and type-2 TRIVs that indicate pairs of slot offsets. This segmentation allows the system to flexibly combine different types of indications based on the specific coordination scenario, improving adaptability while maintaining manageable message structure through clear differentiation of indication types.
Solution Approach 2:
The patent implements dynamic mapping between slot offsets and time resource indication values, where the number and type of TRIVs used can vary based on the coordination requirements. The system dynamically selects between type-1 and type-2 TRIVs and adjusts the reference time for each type, enabling flexible adaptation to different time resource allocation scenarios rather than using a fixed indication method.
2Productivity
If dynamic mapping of slots to time resource indication values is implemented, then time resource allocation efficiency is improved, but the processing complexity increases
Solution Approach 1:
Different reference times are assigned to different types of time resource indication values: type-1 TRIVs use one reference time while type-2 TRIVs use another reference time. This local differentiation of reference times allows each TRIV type to be processed with its own optimized logic, improving overall allocation efficiency while containing processing complexity through specialized handling rather than universal complexity.
Solution Approach 2:
The system changes the parameter of reference time based on the type of TRIV being processed. By dynamically adjusting which reference time is applied (different for type-1 vs type-2 TRIVs), the system optimizes the mapping process for different scenarios, improving efficiency while managing complexity through parameter variation rather than structural complexity.
3Adaptability or versatility
If type-1 and type-2 time resource indication values are used to indicate different numbers of slot offsets, then the coverage of time resource indication is enhanced, but the message size increases
Solution Approach 1:
Type-2 TRIVs merge the indication of two slot offsets into a single value, allowing paired slot offsets to be represented more compactly. This merging approach enhances coverage by able to indicate multiple slots while reducing the number of individual indication values needed, thereby managing message size efficiently while expanding indication capability.
Solution Approach 2:
The inter-UE coordination message structure is designed to be universal by supporting both type-1 and type-2 TRIVs within the same framework. This multi-functionality allows the message to adapt to different indication needs (single slot or paired slots) without requiring entirely different message formats, enhancing coverage while maintaining reasonable message size through a unified structure.
Data Source
AI summary
Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment includes: determining an inter-UE coordination message, wherein the message includes type-1 time resource indication values (TRIVs), the number of which is expression I, and type-2 TRIVs, the number of which is expression II, and the type-1 TRIVs and the type-2 TRIVs are used to indicate slot offset values, the number of which is expression III; and transmitting the inter-UE coordination message. If expression III is an even number, then expression I=expression III/2, and expression II=0, and if expression III is an odd number, then expression I=expression IV, and expression II=1, wherein one type-1 TRIV can indicate one slot offset, and one type-2 TRIV can indicate two slot offsets.