Reducing Power Consumption By Effectively Utilizing The Device Wake Up Time In Single Channel Concurrency

摘要

A wireless device implements power saving logic for two or more wireless clients that concurrently communicate on a shared wireless channel (single channel concurrency). When one of the wireless clients transitions from power save mode to active mode (e.g., in response to a beacon signal), the power saving logic causes the other wireless client(s) to transition to active mode as well. Each wireless client ‘awakened’ in this manner transmits a NULL frame having a power management bit set to a logic ‘0’ value to an associated access point (AP), thereby indicating its active status to the associated AP. As a result, all of the wireless clients may concurrently receive buffered data from their associated APs on the shared wireless channel. If the ‘awakened’ wireless client(s) do not need to transition to active mode in response to their next received beacons, power consumption of the wireless device is advantageously reduced.

主权项

1. A method for saving power in a wireless device, comprising:
determining that a first wireless client operating on a wireless channel has transitioned from a first power saving mode to a first active mode; and transitioning a second wireless client operating on the wireless channel from a second power saving mode to a second active mode in response to determining that the first wireless client has transitioned from the first power saving mode to the first active mode, wherein the first wireless client is in the first active mode and the second wireless client is in the second active mode concurrently.