Multi-TRP Channel Processing with Adaptive PDSCH Timing
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multiple transmission and reception points, particularly in heterogeneous networks, leading to suboptimal performance and resource allocation.
Innovation Solution
Implementing a mechanism to manage and optimize communication protocols across multiple transmission and reception points (TRPs) by adapting PDSCH and PUSCH processing timings, utilizing out-of-order processing, and configuring bandwidth parts (BWPs) to enhance data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission and reception points are managed in existing wireless communication systems, then network coverage and capacity are improved, but system complexity and resource allocation difficulty increase
Solution Approach 1:
The system segments the management of multiple TRPs by introducing separate management entities: a first TRP manager at the UE side and a second TRP manager at the network side. Each manager handles specific processing tasks independently, dividing the complex multi-TRP coordination into manageable segments that can be processed in parallel, thus improving network capacity while controlling system complexity.
Solution Approach 2:
The patent introduces a new dimension of processing by implementing out-of-order processing capability, where data packets can be processed in a different sequence than their arrival order. This adds a temporal dimension flexibility to the system, allowing more efficient resource allocation across multiple TRPs without increasing structural complexity.
2Productivity
If PDSCH and PUSCH processing timings are adapted for multiple TRPs, then data transmission efficiency is improved, but processing complexity and latency management difficulty increase
Solution Approach 1:
The system dynamically adapts PDSCH and PUSCH processing timings based on the specific characteristics of each TRP and the current network state. Instead of using fixed timing configurations, the TRP managers adjust processing schedules in real-time to optimize data transmission efficiency while managing latency requirements for different service types.
Solution Approach 2:
The patent changes key processing parameters including timing offsets, processing durations, and scheduling intervals for PDSCH and PUSCH based on network conditions and TRP capabilities. By dynamically adjusting these parameters, the system achieves improved transmission efficiency while maintaining acceptable latency levels through optimized parameter selection.
3Productivity
If out-of-order processing is implemented, then resource utilization is improved, but processing complexity and synchronization difficulty increase
Solution Approach 1:
The system performs preliminary actions by pre-configuring out-of-order processing capabilities and establishing processing rules before data transmission begins. The TRP managers pre-define acceptable reordering scenarios and processing priorities, which reduces the complexity of real-time decision-making while still allowing flexible resource utilization through out-of-order processing.
Data Source
AI summary
A wireless device receives from a base station configuration parameters indicating a first physical downlink shared channel (PDSCH) capability value associated with a first power state of a cell via a first transmission reception point (TRP) and a second PDSCH capability value associated with a second power state of the cell via a second TRP. The wireless device also receives a first downlink control information (DCI) scheduling a first transport block (TB), via a first PDSCH, of the first TRP and a second DCI scheduling a second downlink TB, via a second PDSCH, of the second TRP.