公开(公告)号：US10361759B2

公开(公告)日：2019-07-23

申请号：US16211014

申请日：2018-12-05

Applicant: Facebook, Inc.

Inventor： Ahmed Alkhateeb ,  Sam Padinjaremannil Alex ,  Ali Yazdan ,  Qi Qu

IPC: H04B7/0456 ,  H04B7/0452 ,  H04W52/28 ,  H04W52/34 ,  H04W52/24 ,  H04W52/42

Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station, including determining an initial precoding for each of the users based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.

公开(公告)号：US20180054251A1

公开(公告)日：2018-02-22

申请号：US15680667

申请日：2017-08-18

Applicant: Facebook, Inc.

Inventor： Sam Padinjaremannil Alex

IPC: H04B7/185 ,  H04W52/26 ,  H04W72/04 ,  H04W52/24 ,  H04W16/28

CPC classification number: H04B7/18506 ,  G01C21/16 ,  G01S19/42 ,  G01S19/49 ,  G01S19/53 ,  G01S19/54 ,  H04W16/28 ,  H04W36/16 ,  H04W52/243 ,  H04W52/262 ,  H04W52/42 ,  H04W64/00 ,  H04W72/0446 ,  H04W84/005 ,  H04W88/005 ,  H04W88/08

Abstract: Systems and methods for communicating in a point to multipoint (PTMP) network that includes an aerial station and a plurality of ground stations. The method includes the aerial station receiving positional information of a ground station of the plurality of the ground stations, selecting antenna elements on a phased antenna array for generating a directional beam based on the positional information, sweeping the directional beam to cover the plurality of ground stations, determining that the directional beam has a beam width sufficient to cover the plurality of ground stations and a transmit power sufficient to provide signals to the ground stations based on the sweeping of the directional beam; and establishing a radio link between the aerial station and the ground station in the plurality of ground stations.

公开(公告)号：US10355777B2

公开(公告)日：2019-07-16

申请号：US15679071

申请日：2017-08-16

Applicant: Facebook, Inc.

Inventor： Hong Gan ,  Matthew Stoneback ,  Wilhelmus Hendrikus Theunissen ,  Michael Tseytlin ,  Raymond R. Blasing ,  Gordon Michael Coutts ,  Sam Padinjaremannil Alex

IPC: H04W4/00 ,  H04B7/185 ,  H04W72/04 ,  H04B7/06 ,  H04B1/40

Abstract: Systems and associated methods for adaptive beam aggregation in wireless communications between unmanned aerial vehicles (UAVs) and ground-based stations are disclosed herein. In some embodiments, a method for transmitting wireless data between an unmanned aerial vehicle (UAV) and a customer premise equipment (CPE) station includes transmitting a first wireless data between a first antenna array and a first CPE station and transmitting a second wireless data between a second antenna array and a second CPE station. The first and second antenna arrays can include one or more individual antennas of the UAV.

公开(公告)号：US20190115959A1

公开(公告)日：2019-04-18

申请号：US16211014

申请日：2018-12-05

Applicant: Facebook, Inc.

Inventor： Ahmed Alkhateeb ,  Sam Padinjaremannil Alex ,  Ali YAZDAN ,  Qi Qu

IPC: H04B7/0452 ,  H04W52/42 ,  H04W52/24 ,  H04B7/0456 ,  H04W52/28 ,  H04W52/34

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0465 ,  H04W52/243 ,  H04W52/283 ,  H04W52/346 ,  H04W52/42

Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station, including determining an initial precoding for each of the users based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.

公开(公告)号：US10181880B1

公开(公告)日：2019-01-15

申请号：US15784089

申请日：2017-10-14

Applicant: Facebook, Inc.

Inventor： Ahmed Alkhateeb ,  Sam Padinjaremannil Alex ,  Ali Yazdan Panah ,  Qi Qu

IPC: H04B7/0456 ,  H04B7/0452 ,  H04W52/28 ,  H04W52/34 ,  H04W52/24 ,  H04W52/42

Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes training a transmission channel between a base station and each of a plurality of users and determining a precoding of transmission signals to each of the plurality of users from the base station. The training includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station, includes determining an initial precoding for each of the users based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.

公开(公告)号：US20180183501A1

公开(公告)日：2018-06-28

申请号：US15389608

申请日：2016-12-23

Applicant: Facebook, Inc.

Inventor： Qi Qu ,  Sam Padinjaremannil Alex ,  Ali YAZDAN PANAH ,  Abhishek Tiwari ,  Yan Yan ,  Hongyu Zhou ,  Pratheep Bondalapati

IPC: H04B7/0456 ,  H04L5/00 ,  H01Q1/28

CPC classification number: H04B7/0456 ,  H01Q1/288 ,  H04B7/06 ,  H04B7/08

Abstract: Apparatuses, methods, and systems for MIMO inter-stream interference cancellation are disclosed. One method includes determining a channel matrix between a plurality of transmitting antennas of a transmitter and a plurality of receiving antennas of a receiver, determining a plurality of channel propagation delays based on a propagation delay between each of the plurality of transmitting antennas and each of the plurality of receiving antennas, preprocessing, by the transmitter, streams of symbols for each transmitting antenna for transmission based on the plurality of channel propagation delays and based on the channel matrix, and transmitting, by the transmitter, the preprocessed symbol streams through the plurality of transmitting antennas.

公开(公告)号：US20190296806A1

公开(公告)日：2019-09-26

申请号：US16435511

申请日：2019-06-09

Applicant: Facebook, Inc.

Inventor： Ahmed Alkhateeb ,  Sam Padinjaremannil Alex ,  Ali YAZDAN ,  Qi Qu

IPC: H04B7/0452 ,  H04W52/42 ,  H04W52/24 ,  H04B7/0456 ,  H04W52/28 ,  H04W52/34

Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.

公开(公告)号：US10236968B2

公开(公告)日：2019-03-19

申请号：US15680667

申请日：2017-08-18

Applicant: Facebook, Inc.

Inventor： Sam Padinjaremannil Alex

IPC: H04W16/28 ,  H04B7/185 ,  H04W52/26 ,  H04W72/04 ,  H04W52/24 ,  H04W52/42 ,  G01S19/49 ,  G01S19/53 ,  G01S19/54 ,  H04W88/08 ,  H04W88/00 ,  G01S19/42 ,  G01C21/16 ,  H04W64/00 ,  H04W84/00 ,  H04W36/16

Abstract: Systems and methods for communicating in a point to multipoint (PTMP) network that includes an aerial station and a plurality of ground stations. The method includes the aerial station receiving positional information of a ground station of the plurality of the ground stations, selecting antenna elements on a phased antenna array for generating a directional beam based on the positional information, sweeping the directional beam to cover the plurality of ground stations, determining that the directional beam has a beam width sufficient to cover the plurality of ground stations and a transmit power sufficient to provide signals to the ground stations based on the sweeping of the directional beam; and establishing a radio link between the aerial station and the ground station in the plurality of ground stations.

公开(公告)号：US20190013845A1

公开(公告)日：2019-01-10

申请号：US16110397

申请日：2018-08-23

Applicant: Facebook, Inc.

Inventor： Qi Qu ,  Sam Padinjaremannil Alex ,  Ali YAZDAN ,  Abhishek Tiwari ,  Yan Yan ,  Hongyu Zhou ,  Pratheep Bondalapati

IPC: H04B7/0456 ,  H01Q1/28 ,  H04B7/06 ,  H04B7/08

Abstract: Apparatuses, methods, and systems for MIMO inter-stream interference cancellation are disclosed. One method includes determining a channel matrix between a plurality of transmitting antennas of a transmitter and a plurality of receiving antennas of a receiver, determining a plurality of channel propagation delays based on a propagation delay between each of the plurality of transmitting antennas and each of the plurality of receiving antennas, determining differences in the plurality of channel propagation delays, preprocessing, by the transmitter, streams of symbols for each transmitting antenna for transmission based on the differences in the plurality of channel propagation delays and based on the channel matrix, and transmitting, by the transmitter, the preprocessed symbol streams through the plurality of transmitting antennas.

公开(公告)号：US10686511B2

公开(公告)日：2020-06-16

申请号：US15995523

申请日：2018-06-01

Applicant: Facebook, Inc.

Inventor： Hongyu Zhou ,  Qi Qu ,  Sam Padinjaremannil Alex

IPC: H04B7/06 ,  H04B7/0408 ,  H04W72/12 ,  H04W72/08 ,  H01Q3/26 ,  H04B1/04 ,  H04W16/10 ,  H04W72/04 ,  H04B1/00 ,  H01Q3/24 ,  H01Q3/46

Abstract: Apparatuses, methods, and systems for simultaneous communication through multiple beams of a wireless node, are disclosed. One apparatus includes a node, that includes a beamforming network, an antenna array, and a controller. The beamforming network operates to receive a plurality of communication signals and generate a plurality of delayed signals. The antenna array generates an antenna pattern that includes a plurality of beams, wherein the plurality of beams is divided into a plurality of groups. The controller operates to control simultaneous communication of the node with a plurality of transceivers, including the node communicating with a first transceiver through a selected beam of a first group of beams and simultaneously the node communicating with another transceiver through a corresponding beam of another group of beams.