Patent ID: 11934335
Assignee: QUALCOMM INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. An apparatus comprising:
an interface circuit configured to provide an interface with a peripheral component interconnect express (PCIe) link; and
a controller configured to:
monitor transmit traffic activity for the link;
monitor receive traffic activity for the link;
manage a first power of transmit lines of the link as a transmit group in accordance with the transmit traffic activity by converting the transmit traffic activity to a number of active differential line pairs of the transmit group using multiple thresholds and transitioning the link through an active state to a standby substate corresponding to the number of active differential line pairs of the transmit lines of the transmit group; and
manage a second power of receive lines of the link as a receive group in accordance with the receive traffic activity, independently of the power of the transmit lines by converting the receive traffic activity to a number of active differential line pairs of the receive group using multiple thresholds and transitioning the link through an active state to a standby substate corresponding to the number of active differential line pairs of the receive lines of the receive group.