Power and temperature driven bandwidth throttling using delay insertion
US12425974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Dec 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/0251
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems to manage an environmental condition, such as power consumption and/or temperature, of an integrated circuit (IC) device by controlling a bandwidth of a packet-based communication interface of the IC device (e.g., a PCIe interface). Bandwidth may be controlled by controlling delay between packets or controlling delay of a handshake signal. Delay may be increased when the environmental condition reaches a first threshold. Delay may be reduced when the environmental condition falls to a second threshold. Bandwidth may be regulated with proportional-integral control provided by a firmware controller and/or hardware. Bandwidth may be separately controlled for upstream and downstream paths based on bandwidth utilization of the respective paths. Bandwidth control may utilize codes stored in selectable registers. The IC device may include a field programmable gate array (FPGA) and may be configured as an accelerator card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.