LEO Satellite Beam Switching via Advance Notification
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Solution Overview
Problem
Conventional methods for beam switching in LEO satellite systems incur high signaling overheads, affecting efficiency.
Innovation Solution
A network switching method where a terminal device receives switching information from a first network device, including time information and an identifier of a second beam, allowing the terminal device to perform beam switching without the need for measurement, reporting, or receiving switched beams allocated by the network device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional beam switching method is used, then beam switching can be implemented, but signaling overheads are high
Solution Approach 1:
The network device performs preliminary actions by pre-calculating and providing the terminal device with advance notification information containing future beam switching parameters (time information, beam identifier, beam direction). This eliminates the need for real-time measurement and signaling during actual beam switching, thereby reducing signaling overhead while maintaining switching efficiency.
Solution Approach 2:
The terminal device performs self-service by autonomously executing beam switching based on the advance notification information received from the network device. The terminal device independently determines when and how to switch beams without requiring continuous network control or additional signaling, thus reducing the overall signaling burden.
2Productivity
If conventional beam switching method is used, then beam switching can be implemented, but switching response time is increased
Solution Approach 1:
The network device provides advance notification information that includes future beam switching parameters in advance of the actual switching event. This preliminary provision of information allows the terminal device to prepare for beam switching ahead of time, eliminating delays associated with real-time measurement and decision-making, thereby reducing switching response time.
Solution Approach 2:
The patent skips unnecessary signaling steps in the conventional beam switching process. By providing advance notification information that directly contains the required switching parameters, the method rushes through the beam switching process by eliminating intermediate measurement, reporting, and allocation signaling steps, thus reducing overall switching response time.
Data Source
AI summary
The present disclosure relates to network switching methods and apparatuses. In one example method, a beam that currently provides a service for a terminal device is a first beam. The first beam is generated by a first network device. The first network device obtains user information of the terminal device, and obtains switching information based on the user information. After the first network device sends the switching information to the terminal device, the terminal device can perform beam switching based on the switching information.