US 12,349,218 B2
Enhanced mobility for URLLC services and redundant PDU sessions
Navin Hathiramani, Coppell, TX (US); and Devaki Chandramouli, Plano, TX (US)
Assigned to Nokia Technologies Oy, Espoo (FI)
Filed by Nokia Technologies Oy, Espoo (FI)
Filed on Nov. 1, 2021, as Appl. No. 17/516,481.
Claims priority of provisional application 63/110,397, filed on Nov. 6, 2020.
Prior Publication US 2022/0150787 A1, May 12, 2022
Int. Cl. H04W 76/15 (2018.01); H04L 1/22 (2006.01); H04W 24/04 (2009.01); H04W 28/02 (2009.01); H04W 28/06 (2009.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01)
CPC H04W 76/15 (2018.02) [H04L 1/22 (2013.01); H04W 24/04 (2013.01); H04W 28/0268 (2013.01); H04W 28/06 (2013.01); H04W 36/0027 (2013.01); H04W 36/302 (2023.05)] 19 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving from a network device, by a network node of a communication network, information regarding a secondary packet data unit session request for pairing the secondary packet data unit session with a primary packet data unit session,
wherein information comprises a packet data unit session pair indicator identifying a packet data session pair comprising the primary packet data unit session and the secondary packet data unit session, a required quality of service, and a required redundancy level indicated by a redundant sequence number (RSN) for the secondary packet data unit session;
based on the information, establishing the secondary packet data unit session;
based on the establishing, sending towards the network device an indication of the secondary packet data unit session being established;
storing the information regarding the secondary packet data unit session request; and
forwarding at least part of the information regarding the secondary packet data unit session request to at least one target network node during mobility procedure.