Multi-Satellite Downlink Coding for Throughput and Interference Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high cost and complexity of deploying extraterrestrial base stations limit the use of multiple satellite connections for improved downlink connectivity to user equipment, and existing satellite telecommunication providers rarely utilize spectrum resources from two distinct satellites to enhance connectivity.
Innovation Solution
A system and method for enhancing connectivity by establishing downlink connections from two or more extraterrestrial base stations using different encoding codes and frequencies, allowing a user equipment to decode multiple data streams for improved reliability and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple extraterrestrial base stations are deployed to improve downlink connectivity, then downlink quality and throughput are improved, but deployment cost and system complexity increase
Solution Approach 1:
The patent combines multiple extraterrestrial base stations into a coordinated system that serves a single UE simultaneously. Multiple satellites transmit downlink signals to the same user equipment, merging their resources to improve connectivity quality and throughput while managing the complexity through coordinated operation.
Solution Approach 2:
The system enables extraterrestrial base stations to serve multiple functions: individual satellites can independently provide coverage, and when multiple satellites are in view, they collectively enhance the same UE's connection. This multi-functionality allows the system to adapt between single-satellite and multi-satellite operations based on availability and requirements.
2Productivity
If spectrum resources from multiple satellites are utilized, then downlink throughput is improved, but signal interference and path loss increase
Solution Approach 1:
The system changes signal parameters by having multiple satellites transmit on different frequency resources or with different encoding schemes. This parameter differentiation allows the UE to receive multiple data streams while managing interference through diversity in frequency, time, or code domains, thereby improving throughput despite the presence of multiple signals.
Data Source
AI summary
Embodiments of the present disclosure are directed to systems and methods for enhanced multi-satellite downlink connectivity. Each of two or more extraterrestrial base stations communicate data in a downlink to a single user equipment (UE). Encoding each downlink with a different and orthogonal code permits the re-use of at least partially overlapping frequency resources without intra-channel interference. The separated data streams can be used either to provide additional redundancy when the same data is communicated on each stream or to increase throughput when at least partially different data is communicated on each stream.