US 11,601,179 B1Granted

Coordinated beamforming of nodes in a wireless mesh network

AssigneeMeta Platforms, Inc.

InventorsBrian Dunn, Krishna Srikanth Gomadam, Djordje Tujkovic

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Abstract

Apparatuses, methods, and systems for coordinated beamforming in a wireless mesh network, are disclosed. One system includes a network that includes a plurality of nodes connected through wireless links, and a controller. The wireless links including aggressor links and victim links wherein the aggressor links interfere with the victim links. The controller is operative to identify aggressor links and victim links of a group of nodes of the plurality of nodes, coordinate beam scans of the one or more victim receive nodes associated with the victim links of the group, coordinate transmission of one or more aggressor transmit nodes associated with the aggressor links of the group, characterize or receive characterizations of measured interference at the one or more victim receive nodes during the coordinated beam scans, and select beamforming coefficients for the victim receive nodes based at least on the characterizations of the measured interference.

Claims18

Dependent claims

A wireless network, comprising:

a plurality of nodes connected through wireless links, the wireless links including aggressor links and victim links, wherein the aggressor links interfere with the victim links;
a controller operative to:
identify aggressor links and victim links of a group of nodes of the plurality of nodes;
coordinate transmit beam scans of aggressor transmitter nodes associated with the aggressor links;
coordinate reception of one or more victim receive nodes associated with the victim links during the coordinated transmit beam scans;
coordinate receive beam scans of the one or more victim receive nodes associated with the victim links of the group;
coordinate transmission of one or more aggressor transmit nodes associated with the aggressor links of the group during the coordinated receive beam scans;
characterize or receive characterizations of measured interference at the one or more victim receive nodes during the coordinated transmit beam scans and during the coordinated receive beam scans;
and
select beamforming coefficients for the aggressor transmit nodes and the victim receive nodes based at least on the characterizations of the measured interference.

7 more elements

A method, comprising:

identifying aggressor links and victim links of a group of nodes of a plurality of nodes, wherein the plurality of nodes are connected through wireless links, the wireless links including the aggressor links and the victim links, wherein the aggressor links interfere with the victim links;
coordinating transmit beam scans of aggressor transmitter nodes associated with the aggressor links;
coordinating reception of one or more victim receive nodes associated with the victim links during the coordinated transmit beam scans;
coordinating receive beam scans of victim nodes associated with the victim links;
coordinating transmission of one or more aggressor transmit nodes associated with the aggressor links during the coordinated receive beam scans;
characterizing or receiving characterizations of measured interference at the one or more victim receive nodes during the coordinated beam scans;
and
selecting beamforming coefficients for the aggressor transmit nodes and the victim receive nodes based at least on the characterizations of the measured interference.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/567,203Filed 3 Jan 2022 · continuation
Priority: 19 May 2020
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04B 7/0626
Feedback content: channel coefficients, e.g. channel state information [CSI]
H04B 17/345
Measuring or estimating channel quality parameters: interference values
H04B 7/024
Site diversity; Macro-diversity: co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input…
H04B 7/0617
Of weighted versions of same signal: for beam forming