TRP-Specific TDD Patterns for Full-Duplex Wireless Communications
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Solution Overview
Problem
Existing wireless communications systems face inefficiencies in implementing full-duplex operations across multiple transmission and reception points (mTRPs) due to self-interference and the inability of user equipment (UE) to identify how full-duplex slots are allocated to different TRPs, leading to inefficient network operations.
Innovation Solution
Configuring user equipment (UE) with a set of TDD patterns, including TRP-specific patterns, to enable efficient full-duplex communications across multiple TRPs by determining dedicated TDD patterns for each TRP and adjusting transmission parameters based on frequency configurations, thereby mitigating self-interference and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex operations are implemented across multiple TRPs, then network throughput and spectral efficiency are improved, but self-interference between simultaneous transmission and reception increases
Solution Approach 1:
The system segments the full-duplex communication into separate TDD patterns for different TRPs. Each TRP is assigned a dedicated TDD pattern that specifies its transmission and reception slots independently, allowing coordinated full-duplex operation across multiple TRPs while managing self-interference through temporal separation.
Solution Approach 2:
The system dynamically configures TDD patterns for each TRP based on traffic demands and interference conditions. The network can flexibly adjust which TRPs transmit or receive in each slot, enabling adaptive full-duplex operation that optimizes throughput while mitigating self-interference in real-time.
2Productivity
If dedicated TDD patterns are configured for each TRP, then resource allocation efficiency is improved, but signaling overhead increases
Solution Approach 1:
The system merges the configuration of dedicated TDD patterns into existing TDD configuration signaling mechanisms. By integrating TRP-specific pattern configuration into the existing TDD-UL-DL-Config structure, the system achieves fine-grained resource allocation without requiring entirely new signaling protocols, thus balancing detail with overhead.
3Reliability
If TRP-specific TDD patterns are implemented, then full-duplex communication reliability is improved, but system complexity increases
Solution Approach 1:
The system applies local quality by configuring TDD patterns specifically for each TRP's local conditions and capabilities. Each TRP receives a dedicated pattern tailored to its transmission and reception characteristics, improving reliability for full-duplex operations while allowing the overall system to maintain a standardized configuration framework.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information indicative of a set of time division duplexing (TDD) patterns. A first dedicated TDD pattern of the set of TDD patterns may be dedicated for TDD communications between the UE and a first transmission and reception point (TRP) from a set of multiple TRPs associated with a network entity. The UE may determine at least a second dedicated TDD pattern for TDD communications between the UE and at least a second TRP from the set of multiple TRPs based on the set of TDD patterns. The UE may communicate with the network entity via at least one of the first TRP or the second TRP in accordance with the first dedicated TDD pattern, the second dedicated TDD pattern, or both.