US 12,289,238 B2
Passive measurement of communication flows
Jae Won Chung, Lexington, MA (US); Ankitkumar N. Patel, Carlsbad, CA (US); Girish Chandran, Carlsbad, CA (US); and Anil K. Agarwal, North Potomac, MD (US)
Assigned to Viasat, Inc., Carlsbad, CA (US)
Appl. No. 17/791,843
Filed by Viasat, Inc., Carlsbad, CA (US)
PCT Filed Feb. 3, 2021, PCT No. PCT/US2021/016485
§ 371(c)(1), (2) Date Jul. 8, 2022,
PCT Pub. No. WO2021/158711, PCT Pub. Date Aug. 12, 2021.
Claims priority of provisional application 62/970,104, filed on Feb. 4, 2020.
Prior Publication US 2023/0037623 A1, Feb. 9, 2023
Int. Cl. H04L 47/11 (2022.01); H04L 47/12 (2022.01); H04L 47/30 (2022.01)
CPC H04L 47/11 (2013.01) [H04L 47/12 (2013.01); H04L 47/30 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for communications, comprising:
monitoring, over a time period, a plurality of flows between a first node and a second node that are associated with an access system, a connection between the first node and the second node over the access system comprising the plurality of flows;
identifying a subset of the time period associated with communication of traffic for a flow of the plurality of flows being restricted by the access system based at least in part on obtaining an indicator of congestion for the flow;
determining a quantity of traffic for each flow of the plurality of flows during the subset of the time period based at least in part on obtaining the indicator of congestion for the flow;
determining, for the plurality of flows, a plurality of flow rates for the subset of the time period based at least in part on determining respective quantities of traffic of the flow for the subset of the time period, wherein determining the plurality of flow rates comprises:
determining respective quantities of information communicated between the first node and the second node over one or more time slots that occur during the subset of the time period, and
computing, for the one or more time slots, a set of intermediate flow rates based at least in part on the respective quantities of information communicated during the one or more time slots and corresponding durations of the one or more time slots, wherein the plurality of flow rates are based at least in part on the set of intermediate flow rates; and
calculating a capacity of the connection for a second time period based at least in part on the plurality of flow rates.