US 12,381,799 B2
Methods and arrangements for supporting estimation of latency over a communication path in a communication network
Marcus Ihlar, Älvsjö (SE); and Robert Skog, Hässelby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/021,443
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 18, 2020, PCT No. PCT/SE2020/050796
§ 371(c)(1), (2) Date Feb. 15, 2023,
PCT Pub. No. WO2022/039639, PCT Pub. Date Feb. 24, 2022.
Prior Publication US 2023/0308373 A1, Sep. 28, 2023
Int. Cl. H04L 43/0864 (2022.01); H04L 43/12 (2022.01); H04L 47/22 (2022.01)
CPC H04L 43/0864 (2013.01) [H04L 43/12 (2013.01); H04L 47/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, performed by one or more devices, for supporting estimation of latency over a communication path in a communication network between a data flow shaping node and a probe node, which communication path comprises a data flow target node configured to receive a data flow from a data flow source node via the communication path, the data flow shaping node being configured to provide the data flow in bursts towards the data flow target node, wherein the method comprises:
initiating to transmit, by the data flow shaping node, a sample burst being a burst of said bursts that differs in a predefined manner from preceding and subsequent bursts so that the data flow target node in response to the sample burst transmits a certain pattern of acknowledgement packets that differs compared to patterns of acknowledgement packets transmitted by the data flow target node in response to said preceding and subsequent bursts, and
initiating to identify, by the probe node, receipt of potential acknowledgement packets according to said certain pattern.