Channel Resource Priority Rules for Overlapping Handover Signals
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Solution Overview
Problem
In wireless communication systems, particularly in scenarios like extended reality (XR) and cloud gaming, the L1/L2 layer-triggered mobility (LTM) switching mechanism leads to communication collisions or conflicts due to resource overlapping, affecting overall system performance.
Innovation Solution
A communication method and apparatus that determine channel resources based on priority rules to manage overlapping resources, ensuring that terminal devices prioritize high-priority information transmission and reception to prevent simultaneous conflicting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If L1/L2 layer-triggered mobility switching is implemented to reduce handover delay, then handover speed is improved, but communication conflicts occur due to resource overlapping between serving cell and candidate cell
Solution Approach 1:
The terminal device determines channel resources for both serving cell and candidate cell in advance before handover occurs. By pre-identifying potential resource overlaps and preparing resolution strategies beforehand, the system enables fast handover execution while avoiding communication conflicts during the transition process.
Solution Approach 2:
The patent introduces a priority rule mechanism as an intermediary to resolve resource conflicts. When channel resources overlap between serving cell and candidate cell, the priority rule acts as a mediator to determine which transmission should be executed, preventing simultaneous conflicting operations and ensuring reliable communication during handover.
2Productivity
If channel resources are allocated for both serving cell and candidate cell simultaneously, then handover preparation is improved, but resource overlapping causes communication collisions
Solution Approach 1:
The terminal device performs preliminary determination of channel resources for both serving cell and candidate cell before handover execution. This advance preparation allows the system to identify resource allocation conflicts early and resolve them through priority rules, maintaining high preparation efficiency while preventing communication collisions during actual handover.
3Productivity
If the terminal device performs uplink sending or downlink receiving on overlapping channel resources, then communication throughput is improved, but simultaneous operations cause conflicts
Solution Approach 1:
The priority rule serves as an intermediary mechanism that manages simultaneous transmission requests. When channel resources overlap and the terminal device needs to perform both uplink sending and downlink receiving operations, the priority rule mediates by determining which operation has precedence, preventing conflicts while maximizing communication throughput.
Solution Approach 2:
The system changes the parameter of resource allocation by introducing priority levels to resolving conflicts. By assigning different priorities to different channel resources or transmission types, the terminal device can simultaneously perform multiple operations without conflicts, improving throughput while maintaining reliability through controlled resource access.
Data Source
Figure 1a~1b
Figure 2
Figure 3~5
AI summary
A communication method and apparatus are provided, and relate to the field of communication technologies. The method may include: determining a first channel resource and at least one second channel resource, where the first channel resource is used to receive and/or send first information, and the second channel resource is used to receive and/or send second information; and when resource overlapping exists between the first channel resource and the at least one second channel resource, according to a priority rule, receiving and/or sending the first information on the first channel resource, or receiving and/or sending the second information on the at least one second channel resource. The method can be used to ensure overall performance of a communication system when the terminal device has a resource overlapping problem on different channel resources.