17959996. POWER MANAGEMENT FOR PERIPHERAL COMPONENT INTERCONNECT simplified abstract (QUALCOMM Incorporated)

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POWER MANAGEMENT FOR PERIPHERAL COMPONENT INTERCONNECT

Organization Name

QUALCOMM Incorporated

Inventor(s)

Prakhar Srivastava of Lucknow (IN)

Santhosh Reddy Akavaram of Hyderabad (IN)

Ravindranath Doddi of Hyderabad (IN)

Ravi Kumar Sepuri of Hyderabad (IN)

POWER MANAGEMENT FOR PERIPHERAL COMPONENT INTERCONNECT - A simplified explanation of the abstract

This abstract first appeared for US patent application 17959996 titled 'POWER MANAGEMENT FOR PERIPHERAL COMPONENT INTERCONNECT

Simplified Explanation

The abstract describes a new PCIe link state that can improve power saving capabilities of a PCIe link operating in FLIT mode. The innovation involves transitioning lanes of the data link from a partial width link state to a partial width standby link state, reducing power consumption while maintaining functionality.

  • PCIe link state enhancement for power saving:
 * Introduces a new link state for PCIe links operating in FLIT mode.
 * Allows transition of lanes from active state to standby state for power savings.
 * Enables devices to conserve power without sacrificing data link functionality.

Potential Applications

The technology can be applied in various devices and systems where power efficiency is crucial, such as mobile devices, IoT devices, and data centers.

Problems Solved

  • Power consumption reduction in PCIe links operating in FLIT mode.
  • Maintaining data link functionality while conserving power.
  • Enhancing overall power efficiency in devices and systems.

Benefits

  • Improved power saving capabilities in PCIe links.
  • Enhanced energy efficiency in devices and systems.
  • Extended battery life for mobile devices.
  • Reduced operating costs in data centers.

Potential Commercial Applications

Optimizing power consumption in mobile devices for longer battery life - A Game-Changer in Power Efficiency for Mobile Devices

Possible Prior Art

There may be prior art related to power-saving techniques in PCIe links, but specific information is not provided in the abstract.

Unanswered Questions

How does the transition between link states impact data transfer speed?

The abstract does not mention the potential effects on data transfer speed when transitioning lanes between link states. It would be essential to understand if there are any performance trade-offs associated with the power-saving mechanism.

Are there any compatibility issues with existing PCIe devices?

It is not clear from the abstract whether devices utilizing this new PCIe link state would be compatible with older PCIe devices. Compatibility concerns could arise if the new technology is not backward compatible with existing hardware.


Original Abstract Submitted

A new peripheral component interconnect express (PCIe) link state can enhance power saving capabilities of a PCIe link operating in a flow control unit (FLIT) mode. A device can operate a data link with a host in a FLIT mode using fixed-sized packets, the data link being in a partial width link state (PLS) in which a first set of lanes of the data link are in an electrical idle state and a second set of lanes of the data link are in an active state available for data traffic with the host. The device can transition one or more lines of the second set of lanes from the PLS to a partial width standby link state (PSLS) in which the one or more lines of the second set of lanes are in a standby state that has lower power consumption than the active state.