Invention Grant
- Patent Title: WiFi memory power minimization
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Application No.: US15798778Application Date: 2017-10-31
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Publication No.: US10539996B2Publication Date: 2020-01-21
- Inventor: Sandip HomChaudhuri , Douglas Dahlby , Murali Krishna , Harinder Singh , Ravi Konda , BalaSubrahmanyam Chintamneedi
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Paradice and Li LLP
- Main IPC: G06F9/00
- IPC: G06F9/00 ; G06F1/3234 ; G06N20/00 ; G06N7/00 ; H04W52/02 ; G06F1/3287 ; G06F1/3293 ; G06F1/3296 ; G06F9/4401 ; G06F12/1009 ; G06F13/42 ; G06F12/02 ; G06F12/123 ; G06F12/0862 ; G06F12/128 ; G06N3/04 ; G06N3/08

Abstract:
The disclosure relates to minimizing power consumption of a WiFi system-on-chip (SOC) during idle periods. The disclosed architecture includes memory banks for the WiFi SoC's embedded processor that can be independently powered on/off and a Memory Management Unit (MMU) to translate virtual addresses to physical addresses and generate exceptions to process accesses to virtual addresses without a corresponding physical address. The architecture can implement a demand paging scheme whereby a MMU fault from an access to code/data not within the embedded memory causes the processor to fetch the code/data from an off-chip secondary memory. To minimize page faults, the architecture stores WiFi client code/data within the embedded processor's memory that is repeatedly accessed with a short periodicity or where there is an intolerance for delays of accessing the code/data.
Public/Granted literature
- US20180150123A1 WIFI MEMORY POWER MINIMIZATION Public/Granted day:2018-05-31
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