Mobile Device Power Saving via Modem Data Processor Segmentation
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Solution Overview
Problem
Mobile devices experience short operation times due to high power consumption, as processors are frequently woken up to process non-essential network packets even when in hibernation mode, leading to poor power-saving performance.
Innovation Solution
A mobile device with a modem processor and data processor that uses an IP packet protocol module to unpack network packets and selectively wake up the data processor only when necessary, storing non-essential data in a buffer to prolong hibernation time and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the data processor enters hibernation mode to reduce power consumption, then power saving is improved, but the processor must be frequently woken up to process network packets which shortens hibernation time and reduces power saving performance
Solution Approach 1:
The patent segments the processing function by dividing the processor into two parts: a modem processor that remains active to handle network packet reception and protocol unpacking, and a data processor that enters hibernation mode. This segmentation allows the data processor to stay in low-power state longer while the modem processor filters and manages network packets, thus extending hibernation time and improving power saving performance.
2Reliability
If the data processor remains in operation mode to process all network packets, then network service responsiveness is improved, but power consumption increases and operation time shortens
Solution Approach 1:
The patent introduces an intermediary component - the modem processor with IP packet protocol module - that acts as a mediator between the network and the data processor. The modem processor receives and unpacks network packets, filters important data, and selectively wakes up the data processor only when necessary. This intermediary approach maintains network service responsiveness for important data while avoiding unnecessary wake-ups, thus reducing power consumption and extending operation time.
Data Source
AI summary
The present invention discloses a mobile device and a power saving method thereof. The mobile device comprises a modem processor and a data processor. The modem processor is electrically connected to a wireless network system for receiving/transmitting a network packet. When the data processor is in a hibernation mode, the IP packet protocol module of the modem processor unpacks the received network packets to access the packet data. If it is determined that the packet data need to be processed by the data processor, the modem processor wakes up the data processor; whereas the data processor remains in the hibernation mode. Thus, the time period in which the data processor is in the hibernation mode is extended so as to achieve power saving effect.