Dynamic Beam Mode Switching for 5G Resource Allocation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring and switching between shared and UE-specific beams and TCI states, leading to suboptimal performance in beam management and resource allocation.
Innovation Solution
The system receives and transmits configuration information for shared and UE-specific beams and TCI states, using MAC control elements and downlink control information to activate and indicate suitable beam and TCI states, allowing dynamic adaptation between shared and UE-specific configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared beams are used for resource allocation, then resource utilization efficiency is improved, but beam management complexity increases
Solution Approach 1:
The patent segments beam management into two distinct modes: shared beam mode where multiple UEs use common beams for resource allocation, and UE-specific beam mode where individual beams are assigned to specific UEs. The network can dynamically switch between these modes based on traffic conditions and UE requirements, thereby improving resource utilization efficiency while managing beam management complexity through structured segmentation.
2Reliability
If UE-specific beams are configured for each user equipment, then communication performance is improved, but system complexity and overhead increase
Solution Approach 1:
The patent implements dynamic beam mode switching capability where the network can transition between shared beam mode and UE-specific beam mode based on real-time conditions. This dynamic approach allows the system to provide UE-specific beams for high-performance requirements while falling back to shared beams for standard traffic, thereby maintaining communication performance when needed while reducing system complexity during normal operations.
Solution Approach 2:
The patent creates a universal beam management framework that can serve multiple functions: shared beams provide baseline service for multiple UEs simultaneously, while UE-specific beams provide enhanced service for particular UEs when required. This multi-functional beam system allows the same infrastructure to handle both common and dedicated beam requirements, reducing overall system complexity compared to maintaining separate systems.
3Adaptability or versatility
If frequent beam switching is performed between shared and UE-specific modes, then adaptability to environmental changes is improved, but control overhead and latency increase
Solution Approach 1:
The patent configures both shared beam parameters and UE-specific beam parameters in advance through RRC signaling before actual beam switching is needed. The network pre-prepares the necessary beam configuration information, including TCI state configurations, so that when beam mode switching is required, the UE can quickly apply the pre-configured parameters without extensive real-time negotiation, thereby reducing control overhead and latency while maintaining adaptability.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for configuring shared and UE specific beams and TCI states. One method includes receiving, at a user equipment (UE) from a network device, configuration information for shared UE beams, shared transmission configuration indicator (TCI) states, UE-specific beams, and/or UE-specific TCI states. The method includes receiving, from the network device, a medium access control (MAC) control element (CE) that activates a subset of the shared UE beams, the shared TCI states, the UE-specific beams, and/or the UE-specific TCI states. The method includes receiving, from the network device, downlink control information (DCI) for indicating at least one beam, and/or at least one TCI state from the activated subset of the shared UE beams, the shared TCI states, the UE-specific beams, and/or the UE-specific TCI states.