Hub Timing Offset for Satellite Terrestrial Network Handover
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Solution Overview
Problem
Current data networks are inefficient in handling high volumes of low-bandwidth devices, resulting in low useful-to-useless data ratios, particularly in uncoordinated environments such as GPS tracking systems.
Innovation Solution
A method and system for a hub to communicate with either a satellite network or a terrestrial network by determining propagation delay, adjusting timing offsets, and configuring air interface communication protocol timer values to optimize connection and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If large volumes of low bandwidth devices communicate in an uncoordinated environment, then device connectivity is achieved, but network resource efficiency deteriorates (useful-to-useless data ratio below 10%)
Solution Approach 1:
The hub performs preliminary coordination actions by determining propagation delays and configuring timing offsets before devices transmit data. This preliminary timing synchronization prevents uncoordinated transmissions that waste network resources, allowing efficient handling of large numbers of devices.
Solution Approach 2:
The system dynamically adjusts timing offsets and propagation delay compensations based on real-time network conditions and device characteristics. This dynamic coordination enables the network to efficiently manage varying numbers of devices while maintaining high useful-to-useless data ratios.
2Productivity
If timing offset adjustments and propagation delay compensation are implemented, then network coordination efficiency is improved, but communication protocol complexity increases
Solution Approach 1:
The hub acts as an intermediary that centralizes the complex timing coordination functions. Instead of each device implementing complex propagation delay compensation, the hub determines delays and configures offsets for all devices, simplifying the protocol implementation at the device level while maintaining high coordination efficiency.
Solution Approach 2:
The system uses self-service mechanisms where the hub automatically determines propagation delays and configures timing offsets without requiring complex manual configuration or sophisticated device-level algorithms. This self-organizing approach improves coordination efficiency while keeping protocol complexity manageable.
3Reliability
If propagation delay determination and timing offset adjustment are performed, then satellite network connection reliability is improved, but communication latency increases
Solution Approach 1:
Propagation delay determination and timing offset configuration are performed as preliminary actions during network setup and handshaking phases. By establishing accurate timing parameters in advance, the system ensures reliable satellite network connections while minimizing latency during actual data transmission, as the timing compensation is already in place.
Data Source
AI summary
Apparatuses, methods, and systems of hub communication with a satellite network or a terrestrial network are disclosed. One method includes determining a propagation delay between a wireless communication device and a base station of a satellite network, adjusting, by the wireless communication device, a timing offset between transmit and receive radio frames at the wireless communication device based on whether the satellite network or a terrestrial network is selected, and based at least on the propagation delay, configuring air interface communication protocol timer values including at least a wait time for a response based on at least a frame offset between uplink and downlink frames at the base station of the satellite network, and communicating, by the wireless communication device, with the base station of the satellite network when the satellite network is selected, and with a base station of the terrestrial network when the terrestrial network is selected.