Default Beam Configuration for High-Speed CORESET TCI Switching
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Solution Overview
Problem
Wireless communication devices face challenges in maintaining accurate signal transmission and reception, especially at high speeds, which can strain battery life and require improved power management while supporting various movement speeds and functionalities.
Innovation Solution
Implementing default beam techniques in a high-speed single frequency network scenario, where a base station configures user equipment with control resource set (CORESET) transmission configuration indication states, allowing for efficient communication with multiple transmission reception points using optimized beam selection based on TCI states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam management techniques are used at high speeds, then signal transmission can be maintained, but signal accuracy deteriorates and power consumption increases
Solution Approach 1:
The base station performs preliminary configuration of TCI states and default beam determination before high-speed communication begins. The UE is pre-configured with multiple TCI states and default beam selection criteria, allowing rapid beam selection without extensive measurement and reporting overhead during high-speed movement, thereby improving signal accuracy while reducing power consumption.
Solution Approach 2:
The system changes the parameter of beam selection from UE-based measurement and reporting to network-configured default beam selection. By changing the selection criterion from measured signal quality to network-determined default TCI states, the system reduces the computational burden on the UE while maintaining signal accuracy through optimized network-side beam management.
2Reliability
If complex beam management procedures are implemented, then communication reliability improves, but device complexity increases
Solution Approach 1:
The patent extracts the complex beam management functions from the UE and relocates them to the base station. The base station handles TCI state configuration, default beam determination, and beam selection, while the UE performs simpler operations. This extraction reduces device complexity while maintaining communication reliability through centralized intelligent control.
Solution Approach 2:
The network introduces an intermediary mechanism through MAC-CE signaling and RRC configuration to manage beam selection. Instead of direct UE-based complex measurements and selections, the network acts as an intermediary that configures TCI states and determines default beams, simplifying the UE's task while ensuring reliable communication through network-coordinated beam management.
3Stability of the object's composition
If frequent beam updates are performed to maintain connection at high speeds, then connection stability improves, but loss of time increases
Solution Approach 1:
The system performs preliminary configuration of multiple TCI states and default beam selection criteria before high-speed movement begins. This pre-configuration allows the UE to rapidly switch between pre-determined beams without performing time-consuming measurements and reporting during movement, thereby maintaining connection stability while minimizing time loss.
Solution Approach 2:
The system implements dynamic default beam determination based on UE movement state. The base station dynamically selects appropriate default TCI states according to the UE's speed and movement direction, allowing the system to adapt to changing conditions without requiring frequent full beam management procedures, thus maintaining stability while reducing update time.
Data Source
AI summary
A base station may establish a cellular link with a user equipment (UE) according to a single frequency network scheme. The base station may then determine one or more control resource set (CORESET) transmission configuration indication (TCI) states and transmit signaling to configure the UE with the one or more CORESET TCI states. Additionally or alternatively, the one or more CORESET TCI states may be useable by the UE in performing communications with at least one of a first transmission reception point (TRP) and a second TRP associated with the cellular link with the cellular network.