Dynamic TRP Switching for Multi-TRP Reliability and Latency
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Solution Overview
Problem
Existing 5G NR communication systems face challenges in optimizing transmission and reception efficiency between multiple transmission-reception points (TRPs), leading to suboptimal performance in latency, reliability, and resource utilization.
Innovation Solution
Implementing dynamic switching between multi-TRP (mTRP) and single TRP (sTRP) modes based on network indications, allowing devices to switch between multiple and single TRPs for improved communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-TRP mode is used to improve communication reliability and throughput, then transmission efficiency is improved, but system complexity and switching overhead increase
Solution Approach 1:
The patent implements dynamic switching between multi-TRP and single-TRP modes based on real-time channel conditions. The system transitions from a static multi-TRP configuration to a dynamic mode where the number of active TRPs can change per transmission, allowing optimization between reliability and complexity based on current network conditions.
Solution Approach 2:
The patent changes the operational parameter of TRP quantity from fixed to variable. By allowing the system to adjust the number of active TRPs per transmission based on channel conditions, it resolves the contradiction between maintaining high reliability through multiple TRPs and reducing complexity when single-TRP suffices.
2Productivity
If dynamic TRP switching is implemented to optimize resource utilization, then communication efficiency is improved, but switching overhead and latency increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple TRPs and their associated parameters before actual transmission. This allows the system to quickly switch between TRP configurations without significant delay, as the structural framework is already in place and only minor adjustments are needed during operation.
Solution Approach 2:
The system implements feedback mechanisms where channel conditions are continuously monitored and used to trigger TRP switching decisions. This closed-loop approach ensures that switching occurs only when necessary to optimize communication efficiency, minimizing unnecessary switching overhead and latency.
3Ease of operation
If single-TRP mode is used to reduce complexity, then device operation is simplified, but communication reliability and throughput decrease
Solution Approach 1:
The patent makes the TRP selection mechanism universal by enabling the same communication system to operate effectively in both single-TRP and multi-TRP modes. The system can adapt its functionality based on conditions, using one TRP for simplicity or multiple TRPs for enhanced reliability, with the same underlying framework supporting both operations.
Data Source
AI summary
A network entity may communicate at least one first transmission with a user equipment (UE) via a first transmission-reception point (TRP) and a second TRP in a multi-TRP (mTRP). The network entity may transmit an indication to switch to a single TRP (sTRP) mode to the UE, or a condition of the UE, such as a configured specification, may provide the indication to switch to the sTRP mode. The UE may obtain the indication to switch to the sTRP mode from the network entity or from the condition. The UE may switch to communicate at least one second transmission with the network node via one of the first TRP or the second TRP in the sTRP mode based on the indication to switch to the sTRP mode.