Full-Duplex TDD Resource Scheduling to Avoid Persistent Signal Collisions
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Solution Overview
Problem
In wireless communication systems, the persistent collision of periodic signals/channels with full duplex (FD) time resources leads to severe communication performance deterioration, particularly when important signals like synchronization signals are involved.
Innovation Solution
A method is introduced where user equipment (UE) receives time division duplex (TDD) and FD time resource information from a base station, configuring FD time resources to avoid overlap with specific TDD periods, allowing flexible setting to reduce collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If FD time resource is set to the periodic unit of TDD configuration, then resource allocation is simplified, but persistent collision with periodic signals/channels occurs repeatedly
Solution Approach 1:
The patent applies dynamics by making the FD time resource configuration adaptive rather than static. The network can dynamically adjust FD time resource configurations based on actual system conditions, allowing the system to switch between periodic and non-periodic patterns as needed to avoid collisions with important signals while maintaining simplified allocation when conditions permit.
Solution Approach 2:
The patent changes the parameter of FD time resource periodicity from fixed to variable. By allowing the network to configure whether FD time resources follow a periodic pattern matching TDD configuration or use non-periodic patterns, the system can adjust this parameter to avoid persistent collisions with periodic signals and channels while maintaining communication reliability.
2Productivity
If FD time resource overlaps with periodic signal/channel transmission resource, then resource utilization increases, but collision occurs repeatedly causing severe performance deterioration
Solution Approach 1:
The patent applies preliminary anti-action by proactively preventing collisions before they occur. The network performs preliminary assessment of signal/channel periodicity and FD time resource patterns, then configures FD time resources to avoid overlapping with important periodic signals. This preventive approach eliminates collision-related performance deterioration while maintaining high resource utilization.
3Reliability
If flexible FD time resource configuration is implemented, then collision with periodic signals is reduced, but configuration complexity increases
Solution Approach 1:
The patent introduces the network as an intermediary that manages the complexity of flexible FD time resource configuration. Rather than requiring UE to independently determine optimal configurations, the network acts as a mediator that assesses system conditions and provides appropriate configurations, thereby reducing collision with periodic signals while keeping the actual configuration process simple for UE.
Data Source
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AI summary
Provided are an operation method of an apparatus in a wireless communication system, and the apparatus. The apparatus receives TDD configuration information from a base station, receives full duplex (FD) time resource information from the base station, and performs communication with the base station on the basis of the TDD configuration information and the FD time resource information. The TDD configuration information comprises a first TDD periodicity of a first downlink-uplink pattern and a second TDD periodicity of a second downlink-uplink pattern, and FD time resources being configured by the FD time resource information are located only in some time resources in a specific periodicity different from the first TDD periodicity and the second TDD periodicity, from among first TDD time resources by the first TDD periodicity and second TDD time resources by the second TDD periodicity.