Title:
SYSTEMS AND METHODS FOR MESSAGING-BASED FINE GRANULARITY SYSTEM-ON-A-CHIP POWER GATING
Document Type and Number:
WIPO Patent Application WO/2015/135468
Kind Code:
A1
Abstract:
System and method embodiments are provided for messaging-based System-on-a-chip (SoC) power gating. The embodiments enable fine granularity SoC power gating without introducing significant latency and substantially maximizes SoC power reduction. In an embodiment, a method in a first SoC resource for messaging-based power gating includes receiving at the first SoC resource a wakeup notification message (WNM) from a second SoC resource, wherein the WNM comprises a time at which a result message from the second SoC resource is expected to arrive at the first SoC resource; determining with the first SoC resource a wake-up time according to the time at which the result message from the second SoC resource is expected to arrive at the first SoC resource; setting a wake-up time timer to expire at the wake-up time; and waking up the first SoC resource when the wake-up time timer expires when the first SoC resource is asleep.
Inventors:
BROWN MARK (US)
BAGHERI MEHRAN (US)
YAN PETER (US)
GATHERER ALAN (US)
BAGHERI MEHRAN (US)
YAN PETER (US)
GATHERER ALAN (US)
Application Number:
PCT/CN2015/073963
Publication Date:
September 17, 2015
Filing Date:
March 10, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W4/90
Domestic Patent References:
| WO2011090293A2 | 2011-07-28 |
Foreign References:
| US20130223313A1 | 2013-08-29 | |||
| US20090186595A1 | 2009-07-23 | |||
| CN103229469A | 2013-07-31 |
Download PDF:
Previous Patent: SIXTEEN-MEMBERED MACROLIDE COMPOUND AND APPLICATIONS THEREOF
Next Patent: METHOD AND APPARATUS FOR PLACING DISPLAY INFORMATION
Next Patent: METHOD AND APPARATUS FOR PLACING DISPLAY INFORMATION