US 11,990,948 B2
Subsea telecommunication system
Arnaud Jarrot, Somerville, MA (US); Andriy Gelman, Somerville, MA (US); and Neil Herbst, Houston, TX (US)
Assigned to OneSubsea IP UK Limited, London (GB)
Filed by ONESUBSEA IP UK LIMITED, London (GB)
Filed on Aug. 7, 2019, as Appl. No. 16/534,673.
Claims priority of provisional application 62/716,759, filed on Aug. 9, 2018.
Prior Publication US 2020/0052799 A1, Feb. 13, 2020
Int. Cl. H04B 13/02 (2006.01); H04B 11/00 (2006.01)
CPC H04B 13/02 (2013.01) [H04B 11/00 (2013.01)] 16 Claims
OG exemplary drawing
 
8. A method of updating a subsea telecommunication system, the method comprising:
measuring one or more environmental parameters;
characterizing noise in an acoustic communication channel based on the one or more environmental parameters;
characterizing the acoustic communication channel based on the one or more environmental parameters;
characterizing a physical layer parameter based on the noise in the acoustic communication channel and the acoustic communication channel;
selecting a first mode of operation of an underwater vehicle, wherein the first mode of operation is one of a traversing mode or an inspecting mode;
determining a plurality of data delivery parameters corresponding to the first mode of operation of the underwater vehicle, the data delivery parameters including at least one of latency of a data feed from the underwater vehicle, fidelity of the data feed, spatial resolution of the data feed, or temporal resolution of the data feed, wherein:
when the first mode of operation is the traversing mode, the latency of the data feed is prioritized over the fidelity of the data feed; and
when the first mode of operation is the inspecting mode, the fidelity of the data feed is prioritized over the latency of the data feed;
prior to communicating acoustically with the underwater vehicle through water:
conducting a communication performance simulation of the acoustic communication channel with the characterized physical layer parameter and the determined plurality of data delivery parameters; and
adjusting the physical layer parameter in response to the communication performance simulation;
receiving data acoustically through the water from the underwater vehicle while operating the underwater vehicle at the first mode of operation;
determining that a variation between the characterized physical layer and the data from the underwater vehicle exceeds a threshold;
recharacterizing the physical layer in response to the variation exceeding the threshold, and updating the communication performance simulation;
detecting the underwater vehicle changes operation from the first mode of operation to a second mode of operation, wherein the second mode of operation is different from the first mode of operation, and is one of the traversing mode or the inspecting mode;
adjusting the data delivery parameters to correspond to the second mode of operation, wherein the data delivery parameters are prioritized according to the second mode of operation; and
further updating the communication performance simulation using the adjusted data delivery parameters.