US 11,856,544 B2
Delay offset for reducing time synchronization error in time sensitive networking (TSN) systems
Bikramjit Singh, Kirkkonummi (FI); John Walter Diachina, Garner, NC (US); and Magnus Sandgren, Staffanstorp (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/437,914
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 13, 2020, PCT No. PCT/EP2020/056970
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/183014, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/818,477, filed on Mar. 14, 2019.
Prior Publication US 2022/0141784 A1, May 5, 2022
Int. Cl. H04W 56/00 (2009.01)
CPC H04W 56/005 (2013.01) [H04W 56/0015 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method implemented in a network node supporting a cell, the network node configured to communicate with a wireless device, WD, for performing clock synchronization, the method comprising:
determining delay offset information based at least in part on a common distance applied for multiple wireless devices in the cell, the delay offset information indicating a common temporal delay offset, the delay offset information being based at least in part on a distance that is a fraction of a radius of the cell, the fraction being selected based at least in part on at least one of a signal-to-noise ratio, SNR, and an estimated distribution of WDs within the cell; and
transmitting the delay offset information to the WD in at least one of a system information block, SIB, and a radio resource control, RRC, message.