公开(公告)号：US09929753B1

公开(公告)日：2018-03-27

申请号：US15385807

申请日：2016-12-20

Applicant: Amazon Technologies, Inc.

Inventor： Morris Yuanhsiang Hsu ,  Pratik Kalpesh Patel ,  Qinghai Gao ,  Ateet Kapur ,  Milos Jorgovanovic ,  Jay Praful Desai ,  Jin Guo ,  King Shaw

IPC: H04M1/00 ,  H04B1/00 ,  H04B7/26

CPC classification number: H04B1/0064 ,  H04B7/26

Abstract: Techniques for harmonizing wireless communications performed by a computing device which communicates using varying wireless communication standards are described herein. For instance, a computing device may include multiple chipsets with associated antennas that are configured to perform wireless communications using separate wireless standards which operate at overlapping frequencies. To avoid performance degradation experienced in simultaneous use cases with communications operating at overlapping frequencies, the multiple chipsets may be configured with logic to determine which communications are prioritized when multiple chipsets attempt to communicate simultaneously. The multiple chipsets may be communicatively coupled to coordinate their communications by prioritizing certain types of communications over other types of communications to avoid simultaneous communications in overlapping frequencies. In this way, multiple chipsets that communicate using different standards at overlapping frequencies may avoid performance issues experienced in simultaneous use cases, while performing the communications which are of a highest priority level.

公开(公告)号：US10117288B1

公开(公告)日：2018-10-30

申请号：US15385758

申请日：2016-12-20

Applicant: Amazon Technologies, Inc.

Inventor： Jay Praful Desai ,  Pratik Kalpesh Patel ,  Qinghai Gao ,  Morris Yuanhsiang Hsu ,  Ateet Kapur ,  Milos Jorgovanovic

IPC: H04L7/00 ,  H04W76/16 ,  H04W72/10 ,  H04W72/14 ,  H04W4/80

Abstract: Techniques for harmonizing wireless communications performed by a computing device which communicates using varying wireless communication standards are described herein. For instance, a computing device may include multiple chipsets with associated antennas that are configured to perform wireless communications using separate wireless standards which operate at overlapping frequencies. To avoid performance degradation experienced in simultaneous use cases with communications operating at overlapping frequencies, the multiple chipsets may be configured with logic to determine which communications are prioritized when multiple chipsets attempt to communicate simultaneously. The multiple chipsets may be communicatively coupled to coordinate their communications by prioritizing certain types of communications over other types of communications to avoid simultaneous communications in overlapping frequencies. In this way, multiple chipsets that communicate using different standards at overlapping frequencies may avoid performance issues experienced in simultaneous use cases, while performing the communications which are of a highest priority level.

公开(公告)号：US11452110B1

公开(公告)日：2022-09-20

申请号：US15837790

申请日：2017-12-11

Applicant: Amazon Technologies, Inc.

Inventor： Milos Jorgovanovic ,  Ravi Ichapurapu ,  Morris Yuanhsiang Hsu ,  Ateet Kapur ,  Pratik Kalpesh Patel ,  Latha Srinivasan

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/02 ,  H04W4/80 ,  H04W76/10

Abstract: A system and method for network channel selection is provided. A device includes WIFI, ZIGBEE, and BLUETOOTH communication controllers. The device's processor is configured to determine, using the communication controllers, a WIFI channel designated for communications and a first set of ZIGBEE channels designated for communications. The processor is configured to determine that a number of available BLUETOOTH channels that do not overlap the WIFI channel or any in-use ZIGBEE channels is less than a threshold number of BLUETOOTH channels required for communication using a BLUETOOTH protocol. The processor then determines the WIFI channel has a minimum duty cycle from among duty cycles of the WIFI channel and each ZIGBEE channel, determines a first BLUETOOTH channel that at least partially overlaps the WIFI channel, and causes the BLUETOOTH communication controller to transmit data using the first BLUETOOTH channel.

公开(公告)号：US10425508B1

公开(公告)日：2019-09-24

申请号：US15612430

申请日：2017-06-02

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Pratik Kalpesh Patel ,  Ateet Kapur ,  Milos Jorgovanovic ,  Morris Yuanhsiang Hsu ,  Latha Srinivasan ,  Jian Lu

IPC: H04L29/06 ,  H04W4/80 ,  H04L12/26 ,  H04W24/02 ,  H04W84/12 ,  H04W80/00

Abstract: Described are techniques for enabling a computing device, such as a slave device using a Bluetooth Advanced Audio Distribution Protocol (A2DP), to determine times when a master device is likely to be idle, during which communications using an alternate protocol, such as Wi-Fi may be exchanged. The length of a delay period may be determined based in part on counts of successive communications received from a master device. The length of a transmission period for use of the alternate protocol may be determined based in part on lengths of time between sets of communications received from a master device. If no communication is received from the master device for a length of time greater than or equal to the delay period, data may be communicated using the alternate protocol for a length of time less than or equal to the transmission period.

公开(公告)号：US09893744B1

公开(公告)日：2018-02-13

申请号：US15385831

申请日：2016-12-20

Applicant: Amazon Technologies, Inc.

Inventor： Pratik Kalpesh Patel ,  Jay Praful Desai ,  Qinghai Gao ,  Morris Yuanhsiang Hsu ,  Ateet Kapur ,  Milos Jorgovanovic

IPC: H04B7/00 ,  H04B1/00 ,  H04B7/26

CPC classification number: H04B1/0064 ,  H04B7/26

Abstract: Techniques for harmonizing wireless communications performed by a computing device which communicates using varying wireless communication standards are described herein. For instance, a computing device may include multiple chipsets with associated antennas that are configured to perform wireless communications using separate wireless standards which operate at overlapping frequencies. To avoid performance degradation experienced in simultaneous use cases with communications operating at overlapping frequencies, the multiple chipsets may be configured with logic to determine which communications are prioritized when multiple chipsets attempt to communicate simultaneously. The multiple chipsets may be communicatively coupled to coordinate their communications by prioritizing certain types of communications over other types of communications to avoid simultaneous communications in overlapping frequencies. In this way, multiple chipsets that communicate using different standards at overlapping frequencies may avoid performance issues experienced in simultaneous use cases, while performing the communications which are of a highest priority level.

公开(公告)号：US11818742B1

公开(公告)日：2023-11-14

申请号：US17884809

申请日：2022-08-10

Applicant: Amazon Technologies, Inc.

Inventor： Milos Jorgovanovic ,  Ravi Ichapurapu ,  Morris Yuanhsiang Hsu ,  Ateet Kapur ,  Pratik Kalpesh Patel ,  Latha Srinivasan

IPC: H04W72/542 ,  H04W72/02 ,  H04W4/80 ,  H04W72/0453 ,  H04W72/541 ,  H04W76/10

CPC classification number: H04W72/542 ,  H04W4/80 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/541 ,  H04W76/10

Abstract: A system and method for network channel selection is provided. A device includes WIFI, ZIGBEE, and BLUETOOTH communication controllers. The device's processor is configured to determine, using the communication controllers, a WIFI channel designated for communications and a first set of ZIGBEE channels designated for communications. The processor is configured to determine that a number of available BLUETOOTH channels that do not overlap the WIFI channel or any in-use ZIGBEE channels is less than a threshold number of BLUETOOTH channels required for communication using a BLUETOOTH protocol. The processor then determines the WIFI channel has a minimum duty cycle from among duty cycles of the WIFI channel and each ZIGBEE channel, determines a first BLUETOOTH channel that at least partially overlaps the WIFI channel, and causes the BLUETOOTH communication controller to transmit data using the first BLUETOOTH channel.

公开(公告)号：US10098136B1

公开(公告)日：2018-10-09

申请号：US15637840

申请日：2017-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Milos Jorgovanovic ,  Pratik Kalpesh Patel ,  Ateet Kapur

IPC: H04B17/02 ,  H04W72/12 ,  H04W72/04 ,  H04W52/36 ,  H04W88/06 ,  H04W48/18 ,  H04W52/28 ,  H04W16/14

Abstract: A multi-radio wireless device capable of communicating on several wireless communication protocols (WCP) such as Wi-Fi, Bluetooth, etc. while avoiding on-device interference between radios operating using different WCPs. The device may measure an isolation value between radios during a calibration phase. During runtime operations, if a transmit activity is detected, the device may set a maximum receive gain using the expected transmit power and the isolation value. If a receive activity is detected, the device may set a maximum transmit power using an expected receive gain and the isolation value. The maximum receive gain and/or transmit powers may be obtained from a lookup table matching receive gain values to reference values where the reference values are a combination of transmit powers and isolation values.