US 12,439,349 B2
Devices and methods for handling precise timing protocol frames
Hubertus Munz, Aachen (DE); Kun Wang, Solna (SE); Stefano Ruffini, Rome (IT); Zhenhua Zou, Solna (SE); John Walter Diachina, Garner, NC (US); Torsten Dudda, Wassenberg (DE); and Paul Schliwa-Bertling, Ljungsbro (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/297,802
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 15, 2019, PCT No. PCT/SE2019/051013
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2020/111994, PCT Pub. Date Jun. 4, 2020.
Claims priority of provisional application 62/771,609, filed on Nov. 27, 2018.
Prior Publication US 2022/0030530 A1, Jan. 27, 2022
Int. Cl. H04W 56/00 (2009.01); H04J 3/06 (2006.01)
CPC H04W 56/001 (2013.01) [H04J 3/0667 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, performed by a transmitting device, in a 3GPP wireless communication system, for handling generalized Precise Timing Protocol (gPTP) signaling, from a Time Sensitive Network (TSN), the method comprising:
receiving, by the transmitting device in the 3GPP wireless communication system, from the TSN network, a gPTP frame that comprises time information, wherein the gPTP frame further comprises an indication of a time domain related to the time information and/or a Medium Access Control (MAC) address of a second end station in the TSN network, the second end station being connected to a receiving device in the 3GPP wireless communication system, the indication of the time domain including a domain number identifying one of a plurality of time domains, each time domain having an independent clock;
determining, by the transmitting device, based on the indication of the time domain and/or the MAC address, the receiving device to which the gPTP frame relates, wherein determining to which receiving device the gPTP frame relates comprises:
obtaining information regarding the time domain to which the receiving device and/or one or more second end stations connected to the receiving device are related, by at least one of, a) receiving the information from the receiving device, b) receiving a pre-configuration indicating which receiving devices are related to a specific time domain, and c) receiving from a TSN network controller information that comprises a receiving device identifier or a MAC address of the one or more second end stations; and
determining that the received gPTP frame relates to the receiving device when the indication of the time domain or the MAC address comprised in the gPTP frame corresponds to the obtained information regarding the time domain to which the receiving device and/or the one or more second end stations connected to the receiving device are related; and
transmitting, by the transmitting device, to the determined receiving device, the gPTP frame in a Protocol Data Unit (PDU) session related to the determined receiving device.