Dynamic Receive Beam Switching for SSB Monitoring
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Solution Overview
Problem
Current wireless communication systems, particularly in LTE and 5G networks, face challenges in efficiently monitoring synchronization signal blocks (SSBs) during scheduled synchronization signal bursts, leading to suboptimal signal measurement and potential interference between downlink and uplink transmissions.
Innovation Solution
The implementation of a method where user equipment (UE) selects and switches receive beams on a per-S SB basis to monitor synchronization signals from multiple base stations within a single SS burst set, allowing for simultaneous measurement of multiple SSBs and improved signal quality assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE monitors multiple SSBs during an SS burst set using a single receive beam, then the device complexity is reduced, but the measurement precision deteriorates
Solution Approach 1:
The patent implements dynamic receive beam switching where the UE selects different receive beams based on the specific SSB being monitored. Instead of using a fixed single beam for all SSBs, the system dynamically adapts the receive beam configuration to match the transmit beam of each SSB, thereby improving measurement precision while managing complexity through standardized switching procedures
Solution Approach 2:
The patent applies local quality by optimizing the receive beam for each specific SSB monitoring instance. Each SSB is monitored with a receive beam that is locally adapted to the spatial characteristics of that particular synchronization signal, ensuring that each measurement uses the most appropriate beam configuration for its specific spatial direction and timing
2Measurement precision
If the UE switches receive beams for each SSB monitoring, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the UE with a set of candidate receive beams before monitoring begins. The network provides beam configuration information in advance, allowing the UE to prepare the appropriate receive beams for monitoring multiple SSBs during the SS burst set, thereby reducing the complexity of real-time beam selection while maintaining measurement precision
Solution Approach 2:
The patent utilizes parameter changes by systematically varying the receive beam parameters (such as beam direction and spatial filtering characteristics) according to the specific SSB being monitored. This structured approach to parameter variation allows the UE to adapt to different spatial conditions while following standardized procedures, balancing measurement precision with manageable device complexity
3Ease of operation
If the UE monitors SSBs with fixed beam configuration, then the ease of operation is improved, but the measurement precision deteriorates
Solution Approach 1:
The patent implements dynamic receive beam switching where the UE selects different receive beams based on the specific SSB being monitored. Instead of using a fixed single beam for all SSBs, the system dynamically adapts the receive beam configuration to match the transmit beam of each SSB, thereby improving measurement precision while managing complexity through standardized switching procedures
Solution Approach 2:
The patent applies self-service by enabling the UE to autonomously select and switch receive beams based on pre-configured beam information and SSB timing. The UE automatically adjusts its receive beam configuration for each SSB monitoring instance without requiring manual intervention, maintaining ease of operation while achieving improved measurement precision through adaptive beam selection
Data Source
AI summary
Certain aspects of the present disclosure provides a method for wireless communication at a user equipment (UE). In certain aspects, the method includes selecting, for each of a plurality of synchronization signal blocks (SSBs) of a synchronization signal (SS) burst set, one corresponding receive beam of a plurality of receive beams of the UE. In certain aspects, the method also includes monitoring, at each of the plurality of SSBs, for at least one synchronization signal transmitted by at least one base station (BS) using the corresponding selected receive beam.