US 12,349,091 B2
Selecting propagation delay compensation for time-sensitive network (TSN) information
Bikramjit Singh, Raasepori (FI); John Walter Diachina, Garner, NC (US); Magnus Sandgren, Staffanstorp (SE); and Magnus Larsson, Sollentuna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/921,197
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed May 7, 2021, PCT No. PCT/SE2021/050434
§ 371(c)(1), (2) Date Oct. 25, 2022,
PCT Pub. No. WO2021/225511, PCT Pub. Date Nov. 11, 2021.
Prior Publication US 2023/0171725 A1, Jun. 1, 2023
Int. Cl. H04W 56/00 (2009.01); H04J 3/06 (2006.01)
CPC H04W 56/0045 (2013.01) [H04J 3/0638 (2013.01); H04W 56/009 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, performed by a network node in a radio access network (RAN), for supporting timestamping of time-sensitive network (TSN) messages received by a user equipment (UE) served by the network node, the method comprising:
receiving, from the UE, a first indication of a downlink propagation delay (DL PD) compensation method that is selected by the UE;
in response to the first indication, sending one of the following information to the UE for use in relation to timestamping of TSN messages received by the UE:
a second indication of one of a plurality of available DL PD compensation methods that is selected by the network node for the UE;
a DL PD compensation value, determined by the network node based on the DL PD compensation method that is selected by the UE; or
the DL PD compensation value, determined by the network node based on a different one of the available DL PD compensation methods that is selected by the network node for the UE; and
sending, to the UE proximately after sending the information, an indication of a system clock time associated with the RAN, wherein the system clock time is to be compensated by the UE based on the information.