Application Engine Modem Component Memory Access
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Solution Overview
Problem
The existing memory sharing interface between modem and application engine modules in wireless devices leads to high bandwidth and power consumption requirements, increasing the size and cost of the chipset due to the need for large physical connections and high power consumption.
Innovation Solution
Incorporating a modem component within the application engine module that provides direct access to the memory, reducing the bandwidth requirements of the communication and memory sharing interface by relocating high-bandwidth modem components such as hardware ciphering accelerators and direct memory access modules to the application engine module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If memory sharing interface is used between modem and application engine modules, then dedicated memory resources for modem module can be reduced, but bandwidth requirements and power consumption increase
Solution Approach 1:
The patent divides the modem functionality into two segments: modem processing functions remain in the modem module, while high-bandwidth components (ciphering accelerator, DMA module) are relocated to the application engine module. This segmentation allows the application engine module to utilize its existing high-bandwidth memory interface directly, eliminating the need for high-bandwidth communication through the CMSI interface while maintaining all necessary modem processing capabilities.
2Productivity
If high bandwidth requirements are placed on communication and memory sharing interface, then modem processing capabilities are maintained, but physical connection size increases
Solution Approach 1:
The patent merges the high-bandwidth modem components (ciphering accelerator and DMA module) into the application engine module, which already possesses a high-bandwidth memory interface. This consolidation eliminates the need for large physical connections between the modem module and memory, as the application engine module handles high-bandwidth operations directly through its existing memory interface while the modem module communicates through the lower-bandwidth CMSI interface.
Data Source
AI summary
A wireless device has a modem module and an application engine module. A communication and memory sharing interface connects the modem module to the application engine module. The application engine module has an application layer component for providing application layer processing for the wireless device and a modem component for providing, in combination with the modem module, modem processing for the wireless device. The wireless device has a memory and a memory interface for connecting the application engine module directly to the memory.