公开(公告)号：US20170223102A1

公开(公告)日：2017-08-03

申请号：US15154339

申请日：2016-05-13

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  In Chul Hyun ,  Omar Fawazhashim Zakaria

IPC: H04L29/08 ,  H01Q5/30 ,  H01Q21/29 ,  H01Q1/50 ,  H04W40/02 ,  H01Q1/24

CPC classification number: H04B1/0057 ,  H01Q1/243 ,  H01Q1/50 ,  H01Q5/30 ,  H01Q19/106 ,  H01Q19/185 ,  H01Q21/205 ,  H01Q21/24 ,  H01Q21/28 ,  H01Q21/29 ,  H04L67/06 ,  H04L67/104 ,  H04L67/1091 ,  H04L67/1097 ,  H04M1/026 ,  H04W40/02 ,  H04W84/12 ,  H04W84/18 ,  H04W84/22

Abstract: Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure are described. One mesh network device includes a housing including reflective chambers within with multiple antennas are disposed. A first radio is operable to cause a first antenna to radiate electromagnetic energy in a first frequency range and a first reflector chamber is operable to reflect the electromagnetic energy in a first direction away from the housing. Second, third, and fourth radios are operable to cause the respective antennas within the respective reflective chambers to radiate electromagnetic energy and the respective reflective chamber is to reflect the electromagnetic energy in a respective direction away from the housing.

公开(公告)号：US09641205B1

公开(公告)日：2017-05-02

申请号：US14848215

申请日：2015-09-08

Applicant: Amazon Technologies, Inc.

Inventor： In Chul Hyun ,  Sembhayya Gollakota ,  Morris Hsu ,  Cheol Su Kim

IPC: H04B1/04 ,  H01Q1/52 ,  H04W88/06 ,  H04W84/12 ,  H04W4/00

CPC classification number: H04B1/0475 ,  H04B1/406 ,  H04B1/525 ,  H04W84/12 ,  H04W88/06

Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a processing device that executes an active interference cancellation (AIC) algorithm and radio frequency front-end (RFFE) circuitry coupled to the processing device. The RFFE circuitry includes two RF couplers, and a programmable-delay filter and a vector modulator disposed along electrical path. The AIC algorithm is operable to control the programmable-delay filter to match a delay of the electrical path to a propagation delay in an antenna path. The AIC algorithm is operable to control the vector modulator to adjust a phase, an amplitude or both of a copy of a first RF signal transmitted via the first antenna to generate a second RF signal. The second RF signal is added to a third RF signal via the second RF coupler to remove from the third RF signal interference caused by the first RF signal.

公开(公告)号：US09385795B1

公开(公告)日：2016-07-05

申请号：US14612080

申请日：2015-02-02

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Peruvemba Ranganathan Sai Ananthanarayanan ,  In Chul Hyun

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L5/08

CPC classification number: H04L5/08 ,  H01Q1/243 ,  H01Q21/28 ,  H04B1/0057 ,  H04B7/0469 ,  H04B7/0602 ,  H04B7/0802

Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes an antenna structure comprising four antenna elements, a RF circuit, and a MIMO RF circuit coupled between the antenna structure and the RF circuit. The MIMO RF circuit may include a pair of diplexers; and a pair of switches. The RF circuit is operable to cause a first antenna element of the four antenna elements to radiate and receive electromagnetic energy in a first frequency range via the MIMO RF circuit and the RF circuit is operable to cause a remaining three antenna elements of the four antenna elements to receive electromagnetic energy in the first frequency range via the MIMO RF circuit to support 4×4 DL MIMO.

Abstract translation: 描述了天线结构和操作电子设备的方法。 一种装置包括天线结构，其包括耦合在天线结构和RF电路之间的四个天线元件，RF电路和MIMO RF电路。 MIMO RF电路可以包括一对双工器; 和一对开关。 RF电路可操作以使得四个天线元件的第一天线元件经由MIMO RF电路在第一频率范围内辐射和接收电磁能，并且RF电路可操作以引起四个天线元件中剩余的三个天线元件 通过MIMO RF电路在第一频率范围内接收电磁能，以支持4×4 DL MIMO。

公开(公告)号：US20140329552A1

公开(公告)日：2014-11-06

申请号：US14331985

申请日：2014-07-15

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Varadarajan Gopalakrishnan ,  James Samuel Bowen ,  In Chul Hyun ,  David Woo

IPC: H04B1/38 ,  H04W52/36

CPC classification number: H04W52/18 ,  H01Q1/243 ,  H01Q1/245 ,  H01Q21/28 ,  H04B1/3838 ,  H04W52/228 ,  H04W52/36 ,  H04W52/367

Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device determines whether transmitting the information at the specified transmit power level using a first duty cycle will cause the user device to violate a condition. Responsive to determining that transmitting the information at the specified transmit power level using the first duty cycle will cause the user device to violate the condition, the user device determines a new duty cycle that is lower than the first duty cycle, and transmits the information using the new duty cycle.

Abstract translation: 用户设备接收以由无线运营商指定的发射功率电平发送信息的命令。 用户设备确定使用第一占空比是否以指定的发射功率电平发送信息将导致用户设备违反条件。 响应于确定使用第一占空比以指定的发射功率电平发送信息将导致用户设备违反该条件，用户设备确定低于第一占空比的新占空比，并且使用 新的职责周期。