公开(公告)号：US10652752B2

公开(公告)日：2020-05-12

申请号：US16210316

申请日：2018-12-05

Applicant: Facebook, Inc.

Inventor： Nabeel Ahmed ,  Djordje Tujkovic ,  Sanjai Kohli

IPC: H04W16/10 ,  H04W72/08 ,  H04W40/16 ,  H04W72/04 ,  H04W84/00 ,  H04L12/24

Abstract: Apparatuses, methods, and systems for controlling a hybrid node are disclosed. A network includes a controller, a plurality of first nodes, wherein sectors of the plurality of first nodes are configured to simultaneously transmit wireless signals or receive wireless signals, a plurality of second nodes, wherein sectors of the plurality of second nodes are configured to simultaneously transmit wireless signals when all of the one or more sectors of the plurality of first nodes are receiving wireless signals, or receive wireless signals when all of the one or more sectors of the plurality of first nodes are transmitting wireless signals, and a plurality of hybrid nodes, wherein the controller is operative to select at least a subset of sectors of the plurality of hybrid nodes to operate as one of the plurality of first nodes or to operate as one of the plurality of second nodes.

公开(公告)号：US10511354B2

公开(公告)日：2019-12-17

申请号：US16211504

申请日：2018-12-06

Applicant: Facebook, Inc.

Inventor： Sanjai Kohli ,  Djordje Tujkovic ,  Krishna Gomadam

IPC: H04B7/0408 ,  H04W8/00 ,  H04B1/10 ,  H04W24/02 ,  H04B7/06 ,  H04W88/10

Abstract: Apparatuses, methods, and systems of a hybrid node are disclosed. One embodiment of the hybrid node includes a first sector and a second sector. The first sector is operative to transmit a signal through a predetermined transmission channel at each of a first plurality of transmit beam forming settings. The second sector is operative to receive the signal through the predetermined channel at a second plurality of receive beam forming settings for each of more than one of the first plurality of transmit beam forming settings. Further, the node is operative to measure a received signal quality of the received signal at each of the second plurality of receive beam forming settings of the second plurality of antenna elements, for each of the more than one of the first plurality of transmit beam forming settings of the first plurality of antenna elements.

公开(公告)号：US20190173171A1

公开(公告)日：2019-06-06

申请号：US16248613

申请日：2019-01-15

Applicant: Facebook, Inc.

Inventor： Krishna S. Gomadam ,  Djordje Tujkovic ,  Sanjai Kohli

IPC: H01Q3/34 ,  H01Q21/00 ,  H01Q3/26 ,  H01Q3/28

Abstract: Systems and associated methods for improved beamforming of the phase array antenna are disclosed herein. In one embodiment, a communication system for wireless signals has a phase array antenna having a plurality of individual antennas and a plurality of electrically conductive traces. The individual traces electrically connect corresponding individual antennas with a transmitter. The lengths of individual traces Ti, Tk satisfy equation Abs((Ti−Tk)mod(λ))

公开(公告)号：US09948361B2

公开(公告)日：2018-04-17

申请号：US15090567

申请日：2016-04-04

Applicant: Facebook, Inc.

Inventor： Sanjai Kohli

IPC: H04W40/14 ,  H04B7/0408 ,  H04W40/02 ,  H04W40/12 ,  H04W24/04 ,  H04B15/00 ,  H04L12/707 ,  H04W40/34 ,  H04W72/04 ,  H04W28/18 ,  H04W56/00 ,  H04L12/751 ,  H04L12/715 ,  H04W72/12 ,  H04W24/02 ,  H04W52/42 ,  H04W72/08 ,  H04W16/28 ,  H04W24/10 ,  H04W40/16 ,  H04B7/06 ,  H04W72/00 ,  H04L1/18 ,  H04W84/22

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B15/00 ,  H04L1/1867 ,  H04L45/02 ,  H04L45/22 ,  H04L45/46 ,  H04W16/28 ,  H04W24/02 ,  H04W24/04 ,  H04W24/10 ,  H04W28/18 ,  H04W40/02 ,  H04W40/12 ,  H04W40/14 ,  H04W40/16 ,  H04W40/34 ,  H04W52/42 ,  H04W56/00 ,  H04W72/00 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/085 ,  H04W72/1263 ,  H04W84/22 ,  Y02D70/00 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/34

Abstract: Methods, systems and apparatuses for selecting beamforming parameters based on selected micro-routes are disclosed. One method includes characterizing at least one wireless link between a first node and a second node of a wireless network, including identifying a plurality of micro-routes between the first node and the second node, selecting a micro-route from the plurality of micro-routes for each of a plurality of antenna arrays of at least one of the first node or the second node, yielding a plurality of selected micro-routes, selecting beam forming parameters for each of the plurality of antenna arrays based on the plurality of selected micro-routes, and communicating at least one stream between the first node and the second node through the plurality of selected micro-routes of the plurality of antenna arrays.

公开(公告)号：US20170264352A1

公开(公告)日：2017-09-14

申请号：US15604943

申请日：2017-05-25

Applicant: Facebook, Inc.

Inventor： Sanjai Kohli ,  Djordje Tujkovic ,  Krishna Gomadam

IPC: H04B7/06 ,  H04B7/0408 ,  H04L7/00

CPC classification number: H04B7/088 ,  H04B7/063 ,  H04B7/0695

Abstract: A procedure to establish a link in a directional wireless system where two nodes cannot listen to each other unless optimized beamforming pair is used and timing and framing synchronization is acquired. The procedure determines a set of beamforming pairs that the nodes can use for communication in addition to acquiring the framing and timing synchronization. Training packets are periodically transmitted by a transmitter while a receiver listens in each of a number of receive directions. Training packets are sent N times in N directions while a receiver listens in each of M receive directions until all N×M possible transmit and receive direction pair possibilities are tried. The receiver informs the transmitter which transmit and receive direction pairs were successful in creating communication links between the nodes.

公开(公告)号：US20170195938A1

公开(公告)日：2017-07-06

申请号：US15382676

申请日：2016-12-18

Applicant: Facebook, Inc.

Inventor： Krishna Gomadam ,  Djordje Tujkovic ,  Sanjai Kohli

IPC: H04W40/12 ,  H04W24/08 ,  H04W16/28

CPC classification number: H04W40/12 ,  H04W16/28 ,  H04W24/08

Abstract: Apparatuses, methods, and systems for charactering and selecting micro-routes between nodes of a wireless network are disclosed. One method includes wirelessly communicating between a first node and a second node through a wireless link formed by at least one micro-route, determining a condition of the at least one micro-route, and selecting at least one other micro-route for communication between the first node and the second node based on a level of correlation between the at least one micro-route and the at least one other micro-route, after determining the condition.

公开(公告)号：US20170005408A1

公开(公告)日：2017-01-05

申请号：US14790847

申请日：2015-07-02

Applicant: Facebook, Inc.

Inventor： Krishna S. Gomadam ,  Djordje Tujkovic ,  Sanjai Kohli

IPC: H01Q3/34 ,  H01Q21/00 ,  H01Q3/28

CPC classification number: H01Q3/34 ,  H01Q3/267 ,  H01Q3/28 ,  H01Q21/0006

Abstract: Systems and associated methods for improved beamforming of the phase array antenna are disclosed herein. In one embodiment, a communication system for wireless signals has a phase array antenna having a plurality of individual antennas and a plurality of electrically conductive traces. The individual traces electrically connect corresponding individual antennas with a transmitter. The lengths of individual traces Ti, Tk satisfy equation Abs ((Ti−Tk) mod (λ))

Abstract translation: 本文公开了用于改进相位阵列天线的波束形成的系统和相关方法。 在一个实施例中，用于无线信号的通信系统具有具有多个单独天线和多个导电迹线的相位阵列天线。 单独的迹线将相应的单独天线与发射机电连接。 单个轨迹Ti，Tk的长度满足公式Abs（（Ti-Tk）mod（λ））<λ/ B，其中λ是无线信号的波长，λ/ B是λ的分数。

公开(公告)号：US20160037431A1

公开(公告)日：2016-02-04

申请号：US14878982

申请日：2015-10-08

Applicant: Facebook, Inc.

Inventor： Sanjai Kohli

IPC: H04W40/14 ,  H04W16/28 ,  H04W24/10

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B15/00 ,  H04L1/1867 ,  H04L45/02 ,  H04L45/22 ,  H04L45/46 ,  H04W16/28 ,  H04W24/02 ,  H04W24/04 ,  H04W24/10 ,  H04W28/18 ,  H04W40/02 ,  H04W40/12 ,  H04W40/14 ,  H04W40/16 ,  H04W40/34 ,  H04W52/42 ,  H04W56/00 ,  H04W72/00 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/085 ,  H04W72/1263 ,  H04W84/22 ,  Y02D70/00 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/34

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line-of-sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract translation: 下一代数据网络被描述。 它利用“云”进行数据管理，频率数据计算和分析。 无线网络是允许有限非视距操作的单频网络。 使用分组交换光束的无线网络，电子束形成和交换。 它利用先进的信号处理来补偿可能是频率或平坦衰落的低发射信号功率和多径反射。

公开(公告)号：US20190075044A1

公开(公告)日：2019-03-07

申请号：US16174796

申请日：2018-10-30

Applicant: Facebook, Inc.

Inventor： Krishna Gomadam ,  Djordje Tujkovic ,  Sanjai Kohli

IPC: H04L12/721 ,  H04B7/06 ,  H04B7/08 ,  H04L12/24 ,  H04L12/26

Abstract: A wireless communication network includes a transmitting node and a receiving node configured to transmit and receive packets between the transmitting node and the receiving node through one or more of a plurality of predetermined micro-routes is disclosed. For an embodiment, the transmitting node is configured to retrieve a first micro-route, transmit packets in a first transmit beamforming direction associated with the first micro-route, transmit packets including one or more training signals in a second transmit beamforming direction associated with a second micro-route of the plurality of predetermined micro-routes that is different than the first transmit beamforming direction associated with the first micro-route, and receive feedback from the receiving node indicating that the second micro-route provides a better communication link than the first micro-route.

公开(公告)号：US10178581B2

公开(公告)日：2019-01-08

申请号：US15978148

申请日：2018-05-13

Applicant: Facebook, Inc.

Inventor： Djordje Tujkovic ,  Sanjai Kohli

IPC: H04W28/04 ,  H04B7/0413 ,  H04W72/08 ,  H04L1/20 ,  H04B7/026 ,  H04B7/06 ,  H04W84/12 ,  H04L1/18

Abstract: The disclosed embodiments seek to improve communication rates and lessen transmission errors between nodes in a communication network. The disclosed embodiments seek to improve reception bandwidth using one or more of (1) a MAC wrapper configured to integrate incoming data across sector arrays for use by the existing chipsets, and/or (2) a new interface modification to the chip design facilitating integrated log likelihood ratio processing from across multiple sector arrays. Sector coverage may be deliberately overlapped using the dynamic diversity achieved by the embodiments to compensate for environmental factors.