公开(公告)号：US11184949B1

公开(公告)日：2021-11-23

申请号：US16849673

申请日：2020-04-15

Applicant: Amazon Technologies, Inc.

Inventor： Yufeng Wang ,  Shao-Cheng Wang ,  Qinghai Gao

IPC: H04W16/14 ,  H04W84/12 ,  H04W48/20 ,  H04W48/16 ,  H04W88/08

Abstract: Technologies directed to Dynamic Frequency Selection (DFS) channel assessment mechanisms are described. A processing device of a first wireless device identifies a channel identifier corresponding to a first operating channel being used by a first radio of the first wireless device to communicate with a first access point (AP) enabled on a radio of a second wireless device. The processing device identifies multiple devices in proximity to the first wireless device using a second radio. The processing device determines an airtime utilization percentage value for each operating channel of the second radio and determines a number of radar events for each DFS channel. The processing device determines a second channel identifier having a fewest number of radar events and selects a second operating channel for a second AP on the second radio, the second channel corresponding to the second operating channel.

公开(公告)号：US10574316B1

公开(公告)日：2020-02-25

申请号：US15987684

申请日：2018-05-23

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Shao-Cheng Wang ,  Vipul Jain ,  Kun Ting Tsai ,  Milos Jorgovanovic ,  Chirag Saurabh Bhavsar ,  Vinay Gotnakodlu Hegde

IPC: H04B7/06 ,  H04W4/80 ,  H04W8/00 ,  H04B17/318 ,  H04W84/12

Abstract: A device includes a first radio controller, a second radio controller, and a processor. The processor is configured to execute instructions for determining that a first signal strength of a signal received from a remote device by a first antenna electrically connected to the first radio controller is less than a minimum signal strength threshold for communications using the first antenna, identifying a network process configured to communicate with a remote device using the first radio controller or the second radio controller, and determining that the processor is not executing the network process. The processor is further configured to execute instructions for, determining a second signal strength of a second signal received from the remote device by a second antenna, determining the second signal strength is greater than the first signal strength, and causing the first radio controller to communicate using the second antenna.