Cellular Device-Satellite Communications Service Scheduling
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Solution Overview
Problem
Current satellite-mobile device communication systems face challenges in providing two-way communication due to uplink limitations of cellular devices and associated antennas and transmission power, limiting the range of services available compared to terrestrial radio access networks.
Innovation Solution
A cellular device-satellite communications service that configures satellite resources as a primary or secondary connection to facilitate uplink and downlink communications, using a network device communicatively coupled to a RAN and ground station to manage and schedule communications, improving connectivity and performance metrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If satellite communication resources are configured as primary or secondary connection, then system performance including throughput and data rate is improved, but device complexity and network management complexity increase
Solution Approach 1:
A network device acts as an intermediary between the cellular device and satellite resources, managing the complexity of satellite resource configuration, scheduling, and coordination. This intermediary handles the complex tasks of establishing and maintaining satellite connections, allowing the cellular device to benefit from improved throughput without directly managing the complexity of satellite resource allocation.
Solution Approach 2:
The network device provides multi-functional capabilities by managing both terrestrial cellular connections and satellite connections, coordinating resources across different communication domains. This universal management approach consolidates complexity in a single entity that can handle diverse connection types and resource allocation strategies.
2Adaptability or versatility
If satellite communication is implemented with current cellular device antennas and transmission power, then communication capability is extended to remote areas, but uplink communication quality deteriorates
Solution Approach 1:
The system changes key parameters including transmission power levels, antenna beamforming patterns, and resource allocation strategies to optimize uplink communication quality. By dynamically adjusting these parameters based on channel conditions and satellite position, the system maintains reliable uplink communication while extending coverage to remote areas.
Solution Approach 2:
The network device performs preliminary actions by pre-configuring satellite resources, establishing connection parameters, and preparing transmission schedules before actual communication occurs. This advance preparation ensures that when satellite communication is activated, the uplink quality is optimized from the start rather than attempting to correct issues during active communication.
3Reliability
If satellite resources are used for application service traffic, then service reliability is improved, but network resource management complexity increases
Solution Approach 1:
The network device serves as an intermediary that manages satellite resource allocation for application service traffic, absorbing the complexity of coordinating terrestrial and satellite networks. This intermediary handles traffic routing, resource allocation, and connection management, thereby improving service reliability while preventing complexity from propagating throughout the entire network.
Data Source
AI summary
A method, a device, and a non-transitory storage medium are described in which a cellular device-satellite communications service is provided. The service may provide establishment, maintenance, and termination of uplink and downlink connections via a satellite network, a terrestrial network, and both based on network information and satellite information. The service may also provide scheduling for user plane traffic via the uplink and downlink connections.