公开(公告)号：US11271605B2

公开(公告)日：2022-03-08

申请号：US16981105

申请日：2019-11-12

Applicant: Google LLC

Inventor： Xuemei Ouyang ,  Jeffrey Kuramoto ,  Jiang Zhu ,  Wenjing Su ,  Ke Dong ,  Seang Chau ,  Chi Fai Yip

IPC: H04B1/713 ,  H04B1/715 ,  H04B17/318 ,  H04W48/16 ,  H04W74/08 ,  H04W4/80

Abstract: A system and method is provided for improving signal quality in communications among fully wireless systems including a host device in wireless communication with a primary accessory which further wirelessly communicates with a secondary accessory. The host device generates information for use by the primary accessory in determining which channels have interference and should be avoided. The information may include an adaptive frequency hopping (AFH) channel map for communications between the host and the primary device, from which the primary device can infer which frequency bands have interference and generate a second AFH map for communications between the primary accessory and the secondary accessory accordingly. In other examples the information includes the second AFH map generated by the host, for example, based on an out-of-band scan. In further examples, the information includes an indication of channels used by recognized nearby access points.

公开(公告)号：US20210234572A1

公开(公告)日：2021-07-29

申请号：US16981105

申请日：2019-11-12

Applicant: Google LLC

Inventor： Xuemei Ouyang ,  Jeffrey Kuramoto ,  Jiang Zhu ,  Wenjing Su ,  Ke Dong ,  Seang Chau ,  Chi Fai Yip

IPC: H04B1/715 ,  H04W74/08 ,  H04B17/318 ,  H04W48/16

Abstract: A system and method is provided for improving signal quality in communications among fully wireless systems including a host device in wireless communication with a primary accessory which further wirelessly communicates with a secondary accessory. The host device generates information for use by the primary accessory in determining which channels have interference and should be avoided. The information may include an adaptive frequency hopping (AFH) channel map for communications between the host and the primary device, from which the primary device can infer which frequency bands have interference and generate a second AFH map for communications between the primary accessory and the secondary accessory accordingly. In other examples the information includes the second AFH map generated by the host, for example, based on an out-of-band scan. In further examples, the information includes an indication of channels used by recognized nearby access points.