US 11,778,575 B2 · Apparatus and method for supporting burst arrival time reference clock based on time-sensitive communication assistance information in wireless communication network

Abstract

The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for obtaining clock synchronization information in a base station configured to operate based on a reference clock of a wireless communication system in a wireless communication system is provided. The method includes obtaining a burst arrival time of TSCAI (time-sensitive communication assistance information) based on a TSN (time-sensitive networking) clock, obtaining offset information indicating the difference between the TSN clock and a reference clock of the wireless communication system, and adjusting the burst arrival time, based on the offset to obtain an adjusted burst arrival time based on a reference clock of the wireless communication system.

Claims12

Dependent claims

A method performed by a user-plane function (UPF) in a wireless communication system, the method comprising:

measuring a time offset between a 5th generation system (5GS) time and a time-sensitive networking (TSN) time;
transmitting, to a session management function (SMF), a report message including information regarding the time offset between the 5GS time and the TSN time;
and
receiving, from the SMF, a report ack message,
wherein the time offset is used for a mapping of a burst arrival time from a TSN clock to a 5G clock in the SMF, and
wherein the transmitting of the report message including information regarding the time offset between the 5GS time and the TSN time comprises:
identifying whether a change to the time offset between the 5GS time and the TSN time from a previous time offset between a TSN time and a 5GS time is larger than a threshold, and
transmitting, to the SMF, the report message including information regarding the time offset between the 5GS time and the TSN time, in case that the change is larger than the threshold.

5 more elements

Dependencies are inferred from the claim text.

Apparatus and method for supporting burst arrival time reference clock based on time-sensitive communication assistance information in wireless communication network

Life of this patent

Apparatus and method for supporting burst arrival time reference clock based on time-sensitive communication assistance information in wireless communication network

Life of this patent

Abstract

Claims12