US 11,818,605 B2
Methods, apparatus and systems for satisfying a time control requirement in a wireless communication
Zhendong Li, Shenzhen (CN); and Jinguo Zhu, Shenzhen (CN)
Assigned to ZTE Corporation, Guangdong (CN)
Filed by ZTE Corporation, Guangdong (CN)
Filed on May 13, 2021, as Appl. No. 17/319,788.
Application 17/319,788 is a continuation of application No. PCT/CN2018/115393, filed on Nov. 14, 2018.
Prior Publication US 2021/0314807 A1, Oct. 7, 2021
Int. Cl. H04W 28/02 (2009.01); H04J 3/06 (2006.01); H04L 47/28 (2022.01); H04W 28/24 (2009.01); H04W 36/30 (2009.01)
CPC H04W 28/0268 (2013.01) [H04J 3/0661 (2013.01); H04L 47/28 (2013.01); H04W 28/24 (2013.01); H04W 36/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a first network node, the method comprising:
generating a timestamp associated with downlink data to be transmitted;
transmitting, in a downlink transmission, the downlink data with the timestamp to a second network node, which forwards, in a downlink transmission, the downlink data according to the timestamp and quality of service (QoS) parameter characteristics for satisfying a time control requirement, the timestamp indicating when the downlink data are obtained or transmitted by the first network node;
sending a session context update request to a Session Management Function (SMF) or User Plane Function (UPF);
receiving a session context update response in response; and
sending a handover request to a target node to trigger a handover process carrying the time control information.