Multi-Beam Reception Using Dual TCI State Pools
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multiple beams for transmission and reception, particularly in heterogeneous networks with varying coverage areas and traffic demands, leading to suboptimal performance and resource utilization.
Innovation Solution
Implementing a mechanism for beam management that utilizes multiple beams from different beam pools and time window thresholds to optimize beam selection and indication, enhancing communication efficiency and adaptability in diverse wireless environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single beam is used for transmission and reception, then device complexity is reduced, but communication efficiency and adaptability deteriorate in heterogeneous networks
Solution Approach 1:
The patent segments the beam management process by dividing beams into different pools (first beam pool and second beam pool) with different functionalities. The first beam pool handles coverage extension while the second beam pool handles capacity enhancement, allowing independent management of different beam groups and reducing overall system complexity
Solution Approach 2:
The patent implements dynamic beam selection through time window thresholds where the beam selection mechanism adapts based on temporal conditions and traffic demands. The network can dynamically switch between different beam pools and adjust time window parameters to optimize performance for varying network conditions
2Adaptability or versatility
If multiple beams from different pools are implemented, then adaptability to heterogeneous networks is improved, but beam management complexity increases
Solution Approach 1:
The patent applies local quality by assigning different characteristics to different beam pools. The first beam pool is optimized for coverage scenarios with specific beamforming parameters, while the second beam pool is optimized for capacity scenarios with different parameters. This localized optimization within each pool reduces the complexity of managing diversity across the entire system
Solution Approach 2:
The patent creates a universal beam management framework that can handle both coverage and capacity requirements through a unified dual-pool structure. The same management entity controls both beam pools and can selectively activate them based on network conditions, providing multi-functionality without requiring separate management systems
3Productivity
If dynamic beam selection with time window thresholds is implemented, then resource utilization is improved, but processing complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring time window thresholds and beam pool parameters before actual beam selection occurs. The network prepares multiple beam pools with pre-calculated parameters and configurations, so that during operation, the selection process only needs to compare current conditions against pre-set thresholds rather than performing complex real-time optimization
Solution Approach 2:
The patent utilizes parameter changes by adjusting time window thresholds and beam selection parameters based on network conditions. Rather than changing the fundamental beam management structure, the system optimizes performance by dynamically modifying numerical parameters such as time window sizes, threshold values, and beam activation conditions, which simplifies processing compared to structural changes
Data Source
AI summary
A wireless device may receive a first downlink control information (DCI) associated with scheduling resources for a transport block (TB) and indicating a first transmission configuration indicator (TCI) state from a first TCI state pool. The wireless device may further receive a second DCI indicating a second TCI state from a second TCI state pool. Based on the first TCI state being from the first TCI state pool and the second TCI state being from the second TCI state pool that is different from the first TCI state pool, the wireless device may receive the TB via the resources and based on the second TCI state.