Beam Information Indication Method for Satellite Interference Management
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Solution Overview
Problem
Satellite communication systems face high signaling overheads in managing beam interference due to the need to dynamically adjust and broadcast color multiplexing information for a large number of beams, which is inefficient and undesirable.
Innovation Solution
A method that involves using a first offset to indicate the offset of domain information of multiple beams relative to reference domain information, reducing the need to directly indicate domain information for each beam, thereby minimizing signaling overheads and efficiently managing beam interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If color multiplexing information of all beams is directly delivered at each moment or within a time period, then beam interference management is achieved, but signaling overheads become excessively high
Solution Approach 1:
The patent extracts only the essential offset information from the complete color multiplexing information, transmitting only the difference (offset) relative to reference domain information rather than the full information set. This reduces signaling overhead while maintaining the ability to manage beam interference effectively.
Solution Approach 2:
The patent changes the representation parameter from complete color multiplexing information to offset information relative to reference domain information. By transmitting offsets instead of absolute values, the system reduces the amount of signaling data required while preserving the capability to dynamically adjust beam parameters for interference management.
2Loss of information
If domain information of all beams is indicated directly, then complete beam information is available, but indication overheads increase significantly
Solution Approach 1:
The patent extracts only the necessary offset information from complete domain information, transmitting only the differential data needed to update reference domain information. This maintains beam information completeness while significantly reducing indication overheads by avoiding transmission of redundant data.
Solution Approach 2:
Instead of transmitting complete domain information directly, the patent inverts the approach by transmitting what needs to be changed (offsets) rather than the entire data set. This inversion reduces indication overhead while preserving the ability to reconstruct complete beam information at the receiver.
Data Source
AI summary
This disclosure provides a beam information indication method and an apparatus. The terminal device obtains reference domain information of a plurality of beams and a first offset corresponding to each moment, to update beam domain information, where the first offset indicates an offset of domain information of the plurality of beams relative to the reference domain information of the plurality of beams. In technical solutions provided in this disclosure, domain information of the plurality of beams can be updated with low signaling overheads. The technical solutions may be applied to a satellite communication system, to implement interference management of satellite beams.