Dynamic Dual Default Beam Signaling for 5G Multi-TRP Spectral Efficiency
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G and LTE technologies, face challenges in optimizing beamforming and resource allocation for efficient data transmission, leading to suboptimal performance in multi-user and multi-cell scenarios, which affects spectral efficiency and user equipment (UE) power consumption.
Innovation Solution
The implementation of dynamic signaling to enable or disable the use of multiple default beams for physical downlink shared channel (PDSCH) transmissions from multiple transmit-receive points (TRPs), allowing UEs to process transmissions with one or more default beams based on network indications, thereby optimizing beam usage and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple default beams are used for PDSCH transmissions from multiple TRPs, then spectral efficiency is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic switching between single-beam and multi-beam modes based on network conditions and UE capabilities. The network entity can dynamically indicate whether to use multiple default beams or a single default beam, allowing the system to adapt beam processing complexity to current spectral efficiency requirements.
Solution Approach 2:
The system changes the beam configuration parameter dynamically - switching between using one default beam or multiple default beams for PDSCH transmissions. This parameter change allows optimization of spectral efficiency while managing device complexity by selecting appropriate beam modes based on network conditions.
2Productivity
If multiple default beams are used for PDSCH transmissions from multiple TRPs, then spectral efficiency is improved, but UE power consumption increases
Solution Approach 1:
The patent enables dynamic adjustment of beam processing mode where the UE can switch between processing multiple default beams or a single default beam based on network indications. This dynamic approach optimizes the trade-off between spectral efficiency gains and UE power consumption by activating multi-beam processing only when necessary.
Solution Approach 2:
The system dynamically changes the beam processing parameter - the number of default beams used for PDSCH reception. By changing this parameter based on network conditions and UE power state, the system achieves spectral efficiency improvement while controlling UE power consumption through selective multi-beam activation.
3Adaptability or versatility
If dynamic signaling is implemented to enable or disable multiple default beams, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic signaling mechanisms that allow the network entity to indicate to the UE whether to use multiple default beams or a single default beam. This dynamic indication provides adaptability to changing network conditions while the signaling overhead is managed through efficient indicator designs.
Solution Approach 2:
The dynamic signaling mechanism serves multiple functions: it enables adaptability between single-beam and multi-beam modes, conveys network intent, and coordinates UE behavior. This multi-functional signaling approach improves adaptability while managing device complexity through consolidated control mechanisms.
Data Source
AI summary
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for processing transmissions with multiple beams. For example, the techniques may be implemented in wireless systems in which any type of network entity (gNB or transmission reception points TRPs) send directional transmissions to user equipments (UEs) that receive the directional transmissions with receive beams.