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US 8,559,361 B1Granted
Wireless LAN power savings
AssigneeMarvell International Ltd.
InventorsPartho Mishra, Sandesh Goel
Life of this patent
Estimating the term…
Abstract
A system, comprising: a first receiver of a baseband processor (BBP) configured to determine whether a signal includes a frame; a second receiver of a media access controller (MAC) configured to identify a destination address in the frame; a processor configured to selectively process the frame; and a power management module configured to transition each of the first receiver of the BBP, the second receiver of the MAC, and the processor to the active mode based on predetermined criteria.
Claims18
A system, comprising:
- a first receiver of a baseband processor (BBP) configured to determine whether a signal includes a frame;
- a second receiver of a media access controller (MAC) configured to identify a destination address in the frame;
- a processor configured to selectively process the frame;
- and
- a power management module configured to
- transition the first receiver of the BBP to an active mode (i) based on an energy level of the signal and (ii) before transitioning the second receiver of the MAC and the processor to the active mode,
- transition the second receiver of the MAC to the active mode (i) in response to determining that the signal includes the frame, (ii) after transitioning the first receiver of the BBP to the active mode, and (iii) before transitioning the processor to the active mode, and
- transition the processor to the active mode (i) based on the destination address and (ii) after transitioning first receiver of the BBP and the second receiver of the MAC to the active mode.
5 more elements
A system, comprising:
- a processor;
- a first transmitter of a media access controller (MAC) configured to communicate with the processor;
- a second transmitter of a baseband processor (BBP) configured to communicate with the first transmitter of the MAC;
- and
- a power management module configured to
- transition the processor to an active mode (i) in response to determining that a frame is to be transmitted and (ii) before transitioning the first transmitter of the MAC and the second transmitter of the BBP to the active mode,
- transition the first transmitter of the MAC to the active mode (i) after transitioning the processor to the active mode and (ii) before transitioning the second transmitter of the BBP to an active mode, and
- transition the second transmitter of the BBP to the active mode after transitioning the processor and the first transmitter of the MAC to the active mode.
5 more elements
A method, comprising:
- selectively determining an energy level of a signal prior to transitioning (i) a first receiver of a baseband processor (BBP), (ii) a second receiver of a media access controller (MAC), and (iii) a processor to an active mode;
- transitioning the first receiver of the BBP to the active mode (i) based on the energy level of the signal and (ii) before transitioning the second receiver of the MAC and the processor to the active mode;
- determining whether the signal includes a frame;
- transitioning the second receiver of the MAC to the active mode (i) in response to determining that the signal includes the frame, (ii) after transitioning the first receiver of the BBP to the active mode, and (iii) before transitioning the processor to the active mode;
- identifying a destination address in the frame;
- and
- transitioning a processor to the active mode (i) based on the destination address and (ii) after transitioning the first receiver of the BBP and the second receiver of the MAC to the active mode.
4 more elements
Dependencies are inferred from the claim text.