Predictive Beam Switching for Low-Latency Wireless Communication
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Solution Overview
Problem
Current wireless communication systems face high latency and overhead in beam-management procedures due to the need for constant and periodic exchange of reference signals, especially in high-frequency ranges where narrow beams are required, leading to inefficiencies in managing beam coordination for mobile UEs.
Innovation Solution
Implement predictive beamforming based on determining or predicting the movement and orientation of the device, allowing communication on different beams at different time instances using a controller that configures beams based on location and duration of validity, reducing the need for dynamic updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant and periodic exchange of reference signals is used for beam management, then beam coordination reliability is improved, but latency and overhead increase
Solution Approach 1:
The patent applies preliminary action by configuring multiple beams with predetermined durations of validity in advance. The network entity provides beam configuration information including multiple beams and their respective durations before actual communication occurs. This allows the UE to proactively switch between pre-configured beams based on predicted movement patterns, avoiding the need for constant reference signal exchanges and reducing latency while maintaining reliable beam coordination.
2Reliability
If constant and periodic exchange of reference signals is used for beam management, then beam coordination reliability is improved, but overhead increases
Solution Approach 1:
The network entity performs preliminary configuration by providing beam configuration information that includes multiple beams and their respective durations of validity. This upfront configuration eliminates the need for continuous reference signal exchanges and measurement reporting, significantly reducing overhead while maintaining reliable beam coordination through pre-planned beam switching based on UE movement predictions.
3Measurement precision
If narrow beams are used in high-frequency ranges, then communication precision is improved, but beam management complexity increases
Solution Approach 1:
The patent reduces beam management complexity by pre-configuring multiple narrow beams with predetermined validity durations. Instead of dynamically managing narrow beams through constant reference signals, the network entity provides beam configuration information in advance, allowing the UE to autonomously switch between pre-configured beams based on predicted movement. This preliminary configuration simplifies the management of narrow beams in high-frequency ranges while maintaining communication precision.
4Productivity
If predictive beamforming is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The controller implements predictive beamforming by receiving and storing beam configuration information that includes multiple beams and their respective durations of validity in advance. The controller predicts UE movement based on this pre-configured information and autonomously determines beam switching without requiring complex real-time processing or continuous network interaction. This approach improves productivity by enabling seamless beam switching while keeping the controller complexity manageable through pre-planned configurations.
Data Source
AI summary
A transceiver (1070) can receive a configuration of multiple beams, a respective duration of validity of each of the beams for an apparatus (1000), and an indication of location related information, where the beams provide communication between the apparatus (1000) and a network entity. A controller (1020) can determine a set of the multiple beams to apply for communications based on at least the location related information and the duration of validity of each beam. The transceiver (1070) can communicate on different beams of the set of the beams at different time instances based on at least the location related information and the duration of validity of each beam.