LTE Modem eDRX Paging Coordination for Shared Resources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LTE modems face challenges in sharing resources with processor-based radios during extended discontinuous reception (eDRx) cycles, leading to potential conflicts and increased communication overhead.
Innovation Solution
A method for coordinating resource usage between LTE modems and processor-based radios through eDRx paging opportunity management, involving eDRx scheduling indications and GPIO signaling to minimize conflicts and reduce communication burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LTE modem establishes eDRx cycle and shares resources with processor-based radio, then resource utilization is improved, but resource conflicts increase
Solution Approach 1:
The LTE modem provides eDRx scheduling information to the processor-based radio in advance, enabling the processor-based radio to preemptively schedule its operations around upcoming paging opportunities. This preliminary coordination prevents resource conflicts before they occur, allowing both systems to share resources effectively while maintaining reliable operation.
2Measurement precision
If LTE modem communicates detailed information each eDRx cycle, then coordination accuracy is improved, but communication overhead increases
Solution Approach 1:
The patent extracts only the essential eDRx scheduling information (paging opportunity timing and duration) that the LTE modem needs to communicate to the processor-based radio. By sending only this critical subset of information rather than complete detailed data each cycle, the system achieves sufficient coordination accuracy while dramatically reducing communication overhead.
Solution Approach 2:
The LTE modem provides eDRx scheduling information periodically at relevant transition points (when eDRx cycle parameters change or at scheduled intervals) rather than continuously every eDRx cycle. This periodic information update approach maintains coordination accuracy when needed while minimizing communication overhead during stable operating conditions.
Data Source
AI summary
Techniques for sharing resources between a radio access technology (RAT) modem (e.g., an LTE modem) and a processor-based radio (e.g., a software-defined radio) are described. In an example, operation of the RAT modem establishes an extended discontinuous reception mode (eDRX) cycle with a cellular system. The RAT modem sends eDRX scheduling information, that is based at least in part on the eDRX cycle, to the processor-based radio. Operation of the processor-based radio identifies paging opportunities (POs) of the eDRX cycle, based at least in part on the eDRX scheduling information. Operation of the processor-based radio manages usage of shared resources (e.g., transmit and receive amplifiers, digital signal processing elements, memory devices, elements of physical layer(s), and/or antenna(s), etc.). The managing may be based at least in part on the identified POs. The managing avoids conflicts between the RAT modem and the processor-based radio over the shared resources.