Beam Group System Information Acquisition After Serving Beam Change
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in non-terrestrial networks, there is a need to provide location-specific system information to different wireless devices within the same cell, as all beams currently broadcast the same information, leading to inefficient power consumption and suboptimal system information acquisition.
Innovation Solution
A wireless device selects a serving beam, changes to a second beam, and initiates a system information acquisition procedure based on determining that the second beam belongs to a different beam group, allowing for location-specific system information provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all beams within a cell broadcast the same system information, then the network structure remains simple and easy to manage, but wireless devices cannot acquire location-specific system information leading to inefficient acquisition and potential access barriers
Solution Approach 1:
The cell is divided into multiple beam groups, where each beam group is assigned a unique identifier. System information is segmented into beam group-specific portions, allowing different system information to be broadcast to different beam groups while maintaining manageable complexity through structured organization of beam group IDs and associated system information blocks.
Solution Approach 2:
Different beam groups within the same cell are assigned different system information blocks tailored to their specific characteristics or locations. This allows location-specific system information to be provided to wireless devices in different beam groups, enhancing adaptability while maintaining network manageability through the structured beam group identification system.
2Reliability
If a wireless device re-acquires system information when changing serving beams, then the device ensures up-to-date information, but power consumption increases due to repeated acquisition procedures
Solution Approach 1:
The wireless device determines the beam group ID of the new serving beam before initiating system information acquisition. By checking whether the new beam group ID differs from the current one, the device can preliminarily assess whether re-acquisition is necessary, avoiding unnecessary power consumption while ensuring system information accuracy when beam groups change.
Solution Approach 2:
The system implements a feedback mechanism where the wireless device monitors beam group ID changes and uses this information to control system information acquisition. The device compares the new beam group ID with the stored one, and only initiates acquisition when a change is detected, creating an efficient feedback loop that balances reliability and power consumption.
3Productivity
If different system information is provided to different wireless devices in the same cell, then location-specific optimization is achieved, but the network requires more complex information management and broadcasting mechanisms
Solution Approach 1:
System information is segmented into multiple beam group-specific blocks, each associated with a unique beam group ID. The network manages complexity by organizing information according to beam group identifiers, allowing efficient broadcasting of different system information to different beam groups while maintaining structured and manageable network configuration.
Solution Approach 2:
The system uses a universal beam group ID mechanism that can identify and differentiate multiple beam groups within a cell. This universal identification approach enables the network to provide location-specific system information to different wireless devices while maintaining a unified and manageable broadcasting framework that handles multiple beam groups through a common identification system.
Data Source
AI summary
A method and apparatus for acquiring a system information based on a beam group in a wireless communication system is provided. A wireless device selects a first beam as a serving beam. A wireless device receives, from the first beam of a cell, a system information. A wireless device changes the serving beam from the first beam to a second beam of the cell. A wireless device initiates a system information acquisition procedure for the system information based on determining that the second beam belongs to a different beam group from the first beam.